open tender document for sinking of a vertical shaft...
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OPEN TENDER DOCUMENT FOR
SINKING OF A VERTICAL
SHAFT,ERECTION OF HEADGEAR,DESIGN, SUPPLY,
ERECTION & COMMISSIONING OF A WINDER
AT
CHIKLA MINE
MOIL LIMITED, MOIL BHAWAN, 1-A, KATOL ROAD,
NAGPUR – 440013
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CONTENTS S. No. Description Page No.
1. Notice Inviting Tender 1 2. Preamble 4 3. Definitions & Interpretations, PART I (A) 4-5 4. Tender Notice’s General Terms & Conditions,
PART I (B) 6
5. Qualifications of the Tenderer 7 6. Financial requirement 23 7. Completion period 24 8. Bills’ Payment procedure 26 9. Escalation 31 10. Stores, Materials 31 11. About Drawings 35 12. Additional terms & conditions 36 13. Legal Terms & Conditions 44 14. Integrity Pact 56 15. Annexure I – Information about Tenderer 60 16. Annexure II – Previous Experience of the
Tenderer 63
17. Declaration by the Tenderer 64 18. Technical Specifications & Scope of Work –
PART I (C) 65
19. Civil Works’ Specfications 118 20. Schedule “A” – Brief outline about Chikla
mine 123
21. Schedule “B” – Materials & Facilities to the Contractor free of cost
124
22. Schedule “C” – Materials & Facilities to the Contractor on chargeable basis
125
23. Schedule “D” – Wage Escalation formula 126 24. Schedule “E” - List of drawings, enclosed 127 25. Schedule-“F”- Material Escalation formula 128 26. Proforma of Bank guarantee towards
Security Deposit (Annexure-III) 129
27. Format of Agreement between Contractor and MOIL (Annexure-IV)
132
28. Facilities to Contractor – PART I (D) 136 29. Undertaking for Aadhar card (Annexure-V) 138 30. Format for Bank Guarantee for EMD
(Annexure-VI) 138
31. Details of J.V. & Consortium Annexure-VII 141 32. PART II – PRICE BID 144 to 153
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PART I – TECHNO COMMERCIAL PART
PART-1 (A) & (B)
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PART – I (A) PREAMBLE
MOIL Limited is desirous of Sinking, Lining, Equipping and Furnishing
of a Vertical shaft, Circular in cross section, 4.50 mtrs. Finished Diameter,
160 mtrs. Depth along with Erection of Head gear and Design, Supply,
Erection & commissioning of a 250 H.P.(minimum) Winder at Chikla Mine,
through contract. The terms & conditions, requirements and specifications for
these works for the contract are set out in this tender document. DEFINITION & INTERPRETATIONS In the contract (as hereinafter defined) the following words and expression shall have the meaning hereby assigned to them, except otherwise specified. (1) The “COMPANY” shall mean MOIL Limited, incorporated in India,
having their registered office at MOIL Bhawan, 1-A, Katol Road, Nagpur- 440013 and hereinafter referred to as MOIL.
(2) “THE CHAIRMAN CUM MANAGING DIRECTOR”: shall mean the
Chairman & Managing Director of MOIL , or his successors in office, as designated by the Company.
(3) “THE CONTRACTOR” shall mean the person or persons, Firm or
Company whose tender has been accepted by the Company an includes the contractor’s legal representative, his heirs successors and assignees.
(4) “EXCAVATION” shall mean and include all works to be executed in
accordance with the contract and shall include all activities such as site preparation, loading & transportation, and unloading at specified locations in the waste dumps.
(5) “CONTRACT” shall mean the agreement between the Company and the
Contractor for the execution of the works included therein, all documents such as the invitation to tender, instructions to tenderers, general conditions of the contract, time schedules of completion of jobs, drawings, awarding the work etc.
(6) “CONTRACT DOCUMENT” shall mean collectively the tender documents
designs, drawings, specifications and any other documents constituting the tender.
(7) “TEMPORARY WORK” shall mean all temporary works of every kind
required in or about the execution, completion or maintenance of the works.
8) “SPECIFICATIONS” shall mean all directions, written or verbal by the
authorized representative of MOIL various technical specifications, provisions and requirements attached to the contract.
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(9) “PLANS” shall mean and include all maps, sketches, layout and section as are incorporated in the contract in order to define broadly the scope and specifications of the work or works and all reproductions thereof.
(10) “SITE” shall mean the lands other places on, under in or through which
the works are to be carried out and any other lands or places provided by the Company for the purpose of contract.
(11) “NOTICE IN WRITING OR WRITTEN NOTICE” shall mean a Notice in
written, typed or printed characters sent to the registered office of the addressee and shall be deemed to have been received in the ordinary course of post by which it would have been delivered.
(12) “THE COMPLETION CERTIFICATE” shall mean the certificate to be
issued by the designated Project In Charge at Head office or his nominee, when the works have been completed to his satisfaction.
(13) “BANK CUBIC METERS” shall mean the volume of rock insitu, without
being disturbed. (14) “THE APPOINTING AUTHORITY” for the purpose of arbitration shall be
the Chairman cum Managing Director or any other person so designated by him.
(15) “THE ACCEPTING AUTHORITY” shall mean the Chairman cum
Managing Director of MOIL Limited or his authorized representative. (16) “LETTER OF INTENT” shall mean intimation by a letter to Tenderer that
the tender has been accepted in accordance with the provisions contained in the letter.
(17) “Executive Director (Technical)” shall mean the officer so designated shall
include any other officer authorized by the company for the purpose of this contract & consultant
(17) “MINE MANAGER” shall mean Dy.GM(Mines)/ Chief (Mines)/Dy. Chief
(Mines) etc. designated and authorized to work as a Mine Manager of the respective mine, in terms of the Mines Act.
(18) “WORK/WORKS” shall mean the works to be executed, in accordance
with the Contract and shall include all extra or additional, altered or substituted works, as required, for the performance of the Contract.
(19) “ENGINEER IN-CHARGE” shall mean officer or officers as may be
designated, deputed or authorized, by the company for the purpose of
this contract and shall include Mine Manager/ Engineer In-charge’s
representatives.
(20) “N.I.T” shall mean all documents forming part of this notice of invitation
of the tender.
(21) ”Shaft construction & furnishing” shall mean shaft sinking, deepening, equipping & furnishing.
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NAME & Address of Party, to whom the tender documents were issued :____________________________________________________________________
MOIL LIMITED
PART – I (B)
“Tender For Sinking, Lining, Equipping and Furnishing of a Vertical shaft, Circular in cross section, 4.50 mtrs. Finished Diameter, 160 mtrs. Depth together with Erection of Head gear and Design, Supply, Erection & commissioning of a 250H.P.(minimum) Winder at Chikla Mine.”,
(1) Sealed tender with the name of work super scribed “Tender For
Sinking, Lining, Equipping and Furnishing of a Vertical shaft, Circular in cross section, 4.50 mtrs. finished Diameter, 160 mtrs. Depth together with Erection of Head gear and Design, Supply, Erection & commissioning of a 250H.P.(minimum) Winder at Chikla Mine.”, are invited from appropriate class of contractors of Public Sector Undertakings / reputed private sectors with previous similar experience of five years. The tenders will be received at the office of the Executive Director (Technical), MOIL Limited, Nagpur up to 15.00 Hours on 00.00.2013. The tender document is not transferable and in no case shall the Tender Document, issued in the name of one party be transferred to another party.
All the tenders/PART I of two bid tenders will be opened at 15.30 Hours on 00.00.2013 in the presence such of those tenderers or their authorized representative, as desire to be present at the schedule time.
The PART II – the Price Bid, shall be opened on a date, to be intimated, to only those contractors, who qualify the conditions of PART – I. The Company’s decision, in this regard, shall be final and binding.
(2) The estimated cost of work is Rs. 35.68 Crore approximately.
(3) The tenders shall be submitted in the prescribed form.
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(4) The works are required to be completed within 48 months from the date of the work order, allowing a mobilization period of 15 days or from the date of handing over of the site, by the Mine Manager, whichever is later.
(5) The Competent Authority shall be the accepting Officer,
hereinafter referred to, as such, for the purpose of this contract.
(6) Tender documents, consisting of plans, specifications, schedule(s) of quantities of the various classes of works, to be done, the conditions of contract and other necessary documents are attached with the tender.
(7) Tenderers are advised to inspect and examine the site and surroundings and satisfy themselves before submitting their tenders, as to the nature of the ground/dump and sub soil (so far as in practicable), the form and nature of the site, the means of access to the site the accommodation they may require and in general shall themselves obtain all necessary information as to risk, influence or affect their tender. A tenderer shall be deemed to have full knowledge of site, whether he inspects it or not and no extra charges, consequent upon any misunderstanding or otherwise shall be allowed.
(8) Location and Site: The Chikla Mine is approximately 120 Kms
away from Nagpur city, in the state of Maharashtra, by road. The nearest railway junction is Gobarwahi / Tumsar. The average annual rainfall is about 1400 mm and most of it occurs during the months of July, August and September. The temperature varies from a minimum of 100 Celsius to 450 Celsius at surface.
(9) (i) Qualification of the tenderer: The Tenderer shall have the
following technical and financial capabilities: a) The tenderer should have experience of executing similar projects. b) Should have experience in shaft construction & furnishing of Vertical winding shafts in Coal / Metal mines having minimum depth of 120 meters or more than 120 metres by mechanized means.
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c) Should have carried out similar work worth at least 30% of the value of the present tender, in a single contract, satisfactorily in past. d) Should have had the turn over for the last three preceding financial years ( April to March) at least equal to the value of the present tender.
e) Should own at least one electrically operated Winder capable of man & material winding, complete with all the safety gadgets, Winches and all the essential equipments needed for sinking /deepening a vertical shaft. f) Should ensure that all the equipments and materials used by bidder meets the requirements of the Mines Act, MMR and all the relevant DGMS circulars at all times. g) Should have experience in fabrication & erection of head gear, scaffold, installation of winder.
(9) (ii) Joint venture and consortium of the contractors are also permissible to participate in the tender subject to the conditions as detailed out in Annexure-VII.
(10) Submission of the tender by a tenderer shall imply that he has read this notice and al other contract documents and has made himself aware of the scope and specification of the work to be done and of conditions and rates at which stores, tools and plant items etc. if any, will be issued to him, by the Company and local conditions and other factors bearing on the execution of the works. Tenderers are requested to submit one set of tender document (Part-I-Techno commercial Part and Part-II -Price part without indicating rates) with seal & signature on each page as the token of the acceptance of the terms & conditions of the tender document along with Part-I of the Tender.
(11) The tenderer should quote in figures as well as in words rate(s) tendered. The amount for each item should be worked out and the requisite total given. Special care should be taken to write rates in figures as well as in words and the amounts in figures in such a way that any ambiguous interpretation is not possible. The total amount shall be written both in figures and in words. In case of figures, the words Rs. should be written before the figure of Rupees and the words paise after the decimal figures e.g. Rs. 2.15 P. and in case of words, the words Rupee should precede and the words paise should be written at the end. Unless the
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rate is in whole rupees and followed by the words only, it should invariably be upto two places of decimal. In case of any discrepancy in figures & words, the amount mentioned in word will be considered valid. No overwriting shall be allowed. However, in case of corrections, the amount in words and figures should be cut and rewritten, only countersigned in each case. In case of any discrepancy in rates and amounts, the tendered unit rates only shall be taken into account for final calculations for the ranking of the tenderers.
(12) a) The tenderer should submit the tender in two parts i.e. Part I and
Part II. Part I shall consist of general information regarding technical and commercial aspects and Part II consists of price bid only.
b) Mode of submission: The tenders should be submitted in two parts viz. Part I & Part II in two separate sealed envelopes, duly super scribing the tender reference, name of work and the opening date & time. The full name and the postal address of the tenderer should be written in the bottom left hand corner on each of the sealed envelopes, duly identifying the tender enquiry. Further, envelopes containing each part shall be super scribed as under :-
Part I - Technical and Commercial aspects. Part II- Price part of the offer.
Further both the envelopes containing Part I and Part II shall be put in a bigger envelope which shall be duly sealed and super scribed with the following :-
i) Tender enquiry No.
ii) Whether the envelope contains both the Part I & II – Yes/No
iii) Name of the tenderer.
(13) PART I will be the basis, on which a tenderer becomes qualified,
to be considered for the price bid in PART II and shall consist of the following:-
a) General information about the tenderer in Annexure-I
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b) Information about experience of work of similar nature, indicating the type of work executed, value of work, time period taken and the complete description of work, in Annexure-II.
c) Information regarding equipments, tools etc. giving the details of the equipments, rated capacity of the equipments and other relevant details which have a bearing on the work to be executed in separate Annexure.
d) One set of tender document (Part-I-Techno commercial Part and Part-II -Price part without indicating rates) with seal & signature on each page as the token of the acceptance of the terms & conditions of the tender document along with Part-I of the Tender to be submitted by bidder.
e) The tenderer shall submit the following documents as part of his tender :-
i. Registered Power of attorney of the signatory of the tender. ii. Copy of the latest Income Tax return acknowledgement for
preceding 3 years filed with Income tax department along with the Xerox copy of PAN card.
iii. Documents showing annual turnover for the past 3 years. iv. Copies of all annual reports for the last five years in case of
a company and Balance Sheet and Profit & Loss account in case of others.
v. Complete set of the Tender Documents along with clarifications / addenda / corrigenda, if any, as issued, duly filled in and signed by the tenderer.
vi. Detailed time schedule consisting of every activity in sequential manner starting from the date of acceptance of work (in case awarded) and should be in the form of PERT chart / BAR / GNATT chart.
vii. Copies of the latest Sales Tax Registration certificate along with the TIN No. issued by Sales Tax Authority.
viii. Service Tax Registration No.
f) A copy of the Price Bid without indicating prices and duly signed.
g) Organisation chart giving details of the proposed field
management at site, indicating specifically the statutorily qualified persons e.g. Assistant Manager (Mining), Mine Foremen, Mine Mates, Blasters, Winding Engine Drivers, Engineers, along with their qualifications & similar experience.
h) Earnest Money
The tender shall be accompanied by Earnest Money of Rs. 36,00,000=00 in the form of Demand Draft /pay
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order/Irrevocable Bank Guarantee, issued in favour of MOIL Limited, on a Nationalized Bank or any Scheduled Bank.
(14) PART II portion shall consist of price bid only. While quoting the
price under this part, the tenderer shall specifically confirm that the price, as quoted, in this part are for the scope of work, detailed in the technical specifications of the tender document. In schedule of work at S.N. XVII (Open items), the bidders are requested to quote unit rate, amount and total amount against each items also. Open items will be executed as and when required in view of the necessity & requirement as decided by Engineer in charge.
(15) In case of item rate, tenders quoted rates shall be
considered. Further, rebate/discount if any may be included in tender documents and will be considered for comparative statement. Corrections, if any, shall be duly authenticated by countersignature.
In case of any discrepancy of discount / rebate, the % age
offered or amount calculated thereof (in words / figures), whichever is higher, shall be taken into account for finalisation of the tender.
(16) The tenders for the works shall not be witnessed by the
contractor or contractors who himself / themselves has / have tendered or who may have tendered for the same works. Failure to observe this condition shall render the tender of the contractor, tendering as well as of those witnessing the tender, liable for rejection.
(17) The Tenderer is required to deposit an Earnest money deposit for
an amount of Rs.36,00,000 (Rupees Thirty six lakh) in favour of MOIL Limited, payable at Nagpur and shall be in one of the following forms: An irrevocable bank Guarantee issued by a Nationalised
bank / Scheduled bank except cooperative bank having branch located at Nagpur and acceptable to the Employer and in the given format (Annexure-VI) or a Pay Order or Bank Draft issued by a Nationalised / Scheduled bank. If the Earnest money is submitted in the form of irrecoverable Bank guarantee, its validity should be 30 days beyond the validity of the tender.
The Earnest Money (without any interest) will be returned to the un-qualified tenderer(s) after evaluation of Part-II. The Earnest Money deposited by the successful tenderer will be returned on unconditional acceptance of work order and submission of Security Deposit for the due fulfilment of the Contract.
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(18) The Earnest Money deposited by the successful tenderer will be returned on unconditional acceptance of work order and submission of Security Deposit for the due fulfilment of the Contract.
(19) MOIL Ltd. does not bind itself to accept the lowest tender and reserves the right to accept / reject and / or split any or all tenders, without assigning any reasons, whatsoever.
(20) The tenderers are advised to submit quotations based on the terms and conditions and specifications contained in the tender document and not to stipulate any condition of their own. Any tenderer doing so shall be at his own volition and may render the tender liable for rejection.
(21) Late or delayed tenders i.e. tenders received after the stipulated time shall not be entertained, irrespective of reasons thereof.
(22) CLARIFICATIONS / ADDENDA / CORRIGENDA:
a. Should a Tenderer require any clarifications in connection with any point covered in the Tender document or as to any matter or thing to be done or not to be done by him, he must submit a request for such clarification in writing so as to reach the Executive Director (Tech) MOIL, at least 10 days in advance of the last date fixed for submission of Tender. Copies of any such clarifications furnished by the Company may be supplied to all the Tenderers to whom sets of Tender documents have been issued by the Company, if found necessary and such clarifications will constitute addenda to and be read as part of the Tender document.
b. In addition to the clarifications made in the manner referred in the clause 22(a) above, the Company may on its own furnish to Tenderers such clarifications and additional information as it may in its discretion deem fit. All such clarifications and additional information will be addenda / part of the Tender document.
c. The Company will not be bound by any oral clarifications on interpretation of the Tender document or of any matter or thing connected with the work to be executed in accordance with the Tender documents which may be made by any of its employees.
Clarifications/Addenda/Corrigenda as per (22) (a) & (b) shall also be uploaded at MOIL website.
(23) COLLECTION OF DATA IS TENDERER’S RESPONSIBILITY:
a) Tenderers should in their own interest study the scheme,
drawings and specifications etc., and acquaint themselves with site conditions, nature of strata etc.
b) It will be presumed the Tenderer has visited and seen the site at which the work is to be executed and that Tender is based on full knowledge of the working condition prevailing at site and locality,
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nature, availability of labour, material, transportation facilities, probable site of camp for labour, site office, stores etc. and the extent of the lead and all other factors involved in execution of works.
c) Any negligence or failure on the part of the Tenderer in obtaining necessary reliable information upon the foregoing of any other matter affecting the Tender shall not relieve him from any liability or the entire responsibility for completion of the work at the scheduled rates and time in strict conformity with the tender document.
d) The Tenderer shall be deemed to have satisfied himself about the condition of all existing structures, if any, and also have made local independent enquiries about the sub-soil water and variations thereof and all other similar matters affecting the work. He is deemed to have acquainted himself of his liability for payment of taxes, levies, custom duty and other charges. Any information or any matter derived from this tender including drawings and specifications as obtained from the Company shall not absolve or relieve the Tenderer from fulfilling all the terms and conditions of the contract including the execution of all work (s) which shall also cover incidental work (s) though not expressly in the tender document, but which, whether temporary or permanent, must evidently be required by reasons of the nature of the work included in the contract.
e) No verbal inference from conversation with any officer or with the Company shall anyway affect or modify any of the terms or obligations herein contained.
(24) SECURITY DEPOSIT :-
a) The tenderer whose tender is accepted shall permit the Company at the time of making any payment to him, for work done under the contract, to deduct towards Security Deposit an amount equal to 10%.
b) The Security Deposit shall be held by the Company until Twelve months after the completion of the work and shall be refundable to the Contractor, only after adjusting any amounts, that may be due to the Company, from the Contractor.
c) Without prejudice to its right of indemnity for all statutory and
financial liabilities, the Company reserves the right to forfeit in full or in part, the Security Deposit, in the event of non performance / non compliance with any provisions of the Contract, by the Contractor, other than Force Majeure reasons.
25) The Company shall return the Earnest Money where applicable
to every unsuccessful tenderer only after final decision on the award of the tender has been taken.
26) The tenderer shall submit the tender satisfying each and every
condition laid down in the notice, failing which, the tender will
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be liable to be rejected. All the columns in schedules / proformas shall be duly filled-in. In case of any significant column found blank, the T.P.C. may seek clarification from the tenderer.
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i) The Company reserves the right of accepting the tender either in whole or part, and the tenderer shall be bound to execute the same at his quoted rates.
ii) The Company also reserves the right to relax the qualifying requirements, in the deserving cases.
iii) The company reserves the right to any or all the tenders received or accept a tender, either for the total work or part thereof or divide the work amongst two or more tenderers, without assigning any reasons thereof and the Tenderer shall not be entitled to any costs, charges or expenses incidental to or connected with preparation and submission of his tender.
iv) Tenders otherwise than in the prescribed line, form and pattern described herein are liable to be rejected.
v) Canvassing in connection with Tenders containing remarks, uncalled for or conditional tenders are liable to be rejected.
28) Any tax, leviable in respect of this contract shall be payable by the
contractor and the Company will not entertain any claim whatsoever in this respect.
29) Every page of the contract document shall be signed by the
tenderer. 30) On completion of the work, all rubbish, brick-bats etc. shall be
removed by the contractors at their own expenses and the site cleaned and handed over to the Company.
31) NON SCHEDULE ITEMS OF WORKS - During the execution of
the works in the event of certain changes or alterations of the drawings or specifications or certain items being added or deleted from the original schedule, it shall be binding on the contractor to execute these works as per directions at such rates, as may be computed and fixed by the Company.
32) Any conditional tender is liable to be rejected summarily.
33) VALIDITY OF OFFER :-
Each tenderer shall keep his offer open for a period of at least six months (180 Days) from the date of opening of the tender and in the event of the tenderer withdrawing the offer before the aforesaid period, for any reason, whatsoever, the earnest money deposited by the tenderer may be forfeited.
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34) SUB LETTING:-The contractor shall not sublet or assign to any party or parties, the whole or any portion of the work without prior permission from Competent Authority under the contract.
34.1 The Contractor shall not assign the work or any part thereof or any share of interest therein, or money due there under, or sub-let the work or any part thereof, or allow any person to become interested in the work or portion thereof, in any manner whatsoever except with the prior permission in writing of the Company. Even in the event of sub-letting the work or any part thereof, if permitted by the Company the fact remains that such permission has been accorded shall not establish any contractual relationship between the sub-Contractor and the Company. The Contractor shall always be responsible to the Company for the work being done by sub-Contractor under his sole responsibility at his own risk under the same conditions as if the work is done by him.
34.2 The sub-Contractor will have no claim whatsoever on the Company for the work done by him for the contactor. All the payments due for the work done by sub-Contractor and accepted by the Company will be made by the Contractor only.
34.3 If the Contractor desires to sub-let any portion of the work, full details of the sub-Contractor or sub-Contractors proposed to be engaged by him shall be furnished along with the name and place of business of each sub-Contractor and nature of work along with financial implication to be performed by each sub-Contractor.
34.4 The Contractor shall be responsible for all the acts or omission and commission of the sub-Contractor. It shall be the responsibility of the Contractor to ensure that the sub-Contractor follows all the relevant laws for executing the work.
35) The successful tenderer shall arrange to obtain the appropriate
license of the Competent Authority under the Contract Labour (Regulation & Abolition) Act. 1970 within fifteen days of the placement of the work order.
36) Canvassing in connection with the tender, in any form is strictly
prohibited and the tenderers by such contractors, who resort to canvassing, will be liable to rejection.
37) If the contractor during the subsistence of contract, employs
apprentices for specified periods, the permission for the same should be obtained, in writing from the Mines Manager or his authorised representative. The contractor shall train them, as required, under the Apprentices Act. 1961 and shall be responsible for all the obligations of the employer under the Act, including the liability to make payment to apprentices, required under the Act.
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38) Requisite deduction shall be made from the bills towards Income Tax at the rate of 2% or as per the rates, as applicable from time to time.
39) The rates quoted by the bidder must be inclusive of all taxes
payable against the State Govt. / Central Govt., statutory notification, wherever applicable.
40) No escalation will be payable, during the subsistence of the
contract, unless specifically provided for, in the contract. However Govt. Taxes, duties, levies enhanced by a notification during the currency of contract period shall be reimbursable by MOIL, on production of documentary proof of its payment.
41) Agreement: The contractor whose tender has been accepted,
shall execute an agreement, in the prescribed format within a fortnight, of the date of communication of the acceptance of his tenders. In the event of failure to do so, the earnest money shall be liable to be forfeited.
42) CONTRACTOR’S CAMP : 42.1 The Contractor may, at his option, on lands, Buildings owned or
controlled by the Company and allotted to him on mutually accepted terms for that purpose, maintain and operate camp (s) and mess halls for the convenience of his employees but patronage of such facilities shall be optional with the Contractor’s employees. The Contractor shall comply with all local statutory requirements with the respect to licensees, and the regulations in connection with such camp (s) or services. The Contractor shall be responsible for maintaining his camp(s) in good order and for providing adequate and fair protection facilities. The land so provided shall be vacated after the completion of work in neat and tidy condition, failing which the Company will get it done at the Contractor’s risk and cost.
42.2 The Contractor shall have no authority to establish or to lease the land so allotted to him or to issue concessions or permits of any kind to third parties for establishing commercial, amusement or other establishments.
42.3 The Company at one point will provide water and Electricity. Electricity will be charged prevailing M.S.E.D.C.L. rates applicable for domestic use. One residential accommodation, subject to availability, for Project Manager may be given on hire charges at mutually agreed terms.
43) CONTARCTOR’S SITE OFFICE: The Contractor shall provide and maintain the site office and land / building allotted by the Company for the office of Project Manager and the staff and the office shall be open at reasonable hours to receive instructions, notices or other communications. In case the Project Manager is transferred or leaves the site, the
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contactor / Project Manager shall depute a suitable person as Project Manager (in-charge) and inform the Engineer In-Charge.
44) URGENT WORK: When any urgent work is required to be executed for which
Contractor is liable (in respect of which, the decision of the Engineer In-Charge shall be final and binding) and the Contractor is unable or unwilling to carry out the work at once, the Engineer In-Charge may, on his own, through other agencies carry it out as he may consider necessary. The expenses so incurred by the Company shall be recovered from the Contractor or adjusted or set-off against any sum payable to him.
45) MATERIALS OBTAINED FROM EXCAVATION: 45.1 Rock obtained by the excavation shall remain the property of the
Company and shall be disposed of at the site allocated to Contractor by Engineer In-Charge.
45.2 All fossils Coins, and Articles of antique value and interest found at the site shall be the absolute property of the Company and the Contractor shall take reasonable precautions to prevent his workmen or any other person from removing or damaging any such articles or things and shall inform immediately upon finding thereof and before removal inform the Engineer In-Charge and carry out the Engineer In-Charge’s directions as to the manner of disposal of the same.
46) SECRECY: The Contractor shall all times keep confidential all technical information relating directly or indirectly to the work, either disclosed to the Contractor by and / or on behalf or acquired by the Contractor during the performance of the contract. The Contractor shall not disclose the information to any third party without the Company’s prior written approval. Any contravention of the provision of this clause will tantamount to the breach of the contract.
47) PROGRESS EVALUATION MEETING: The Project Manager shall attend the progress evaluation meeting as and when required.
48) PROGRESS REPORT: The Contractor shall submit daily progress of execution of work to the Engineer In-Charge. The form and manner of such report shall be as prescribed by the Engineer In-Charge.
49) LABOUR RELATIONS: The Contractor shall not take any action in relation to handling his employees as may adversely affect the existing labour relations of the Company and cause dispute and the unrest of the employees of the Company. If he does so he is liable to pay damage to the Company.
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50) CLEANING UP: During the progress of work, the Contractor shall keep the premises occupied by him in a neat and tidy condition and free from any unsightly accumulation of rubbish. On the completion of any portion of the work, the Contractor shall promptly remove all his equipments, temporary structures and surplus construction materials not to be used at or near the same location during later stages of the work. Upon completion of the work and before the final payment is made the Contractor, at his own cost, will dispose of or remove from the vicinity of the work and from all other lands made available to him by the Company, to the satisfaction of Engineer-In-charge all construction plants, buildings, rubbish, unused material and other equipments and material belonging to him and used under his direction during the work and shall leave the premises in neat and tidy condition. In the event of his failure to do so the same may be removed and may be disposed off by the Company at the Contractors cost.
51) USE OF CONTRACT DOCUMENTS: All documents, drawings and specifications, provided by the Company to the Contractor shall be property of the Company and they shall not be used for work other than the work covered by the contract and shall be returned to the Company on completion of the contract.
52) FAILURE OF CONTRACTOR : If the Contractor fails to complete
the works, and as a result, the order is cancelled, the amount due to him, on account of work executed by him, if payable, shall be paid to him, only after due recoveries, as per the provision of contract, and only after alternative arrangement to complete the work have been made, at the price risk of the contractor.
53) FORCE MAJEURE CLAUSE :
a) The successful bidder will advise, in the event of his having to
resort to this clause, by registered letter, duly certified by the statutory authorities, the beginning and end of the cause of delay, within fifteen days of the occurrence and cessation of such Force Majeure, the Company will reserve the right to cancel the contract and the provision governing termination of contract will apply.
b) For delays arising out of Force Majeure, the bidder will not claim extension in completion date for a period exceeding the period of delay, attributable to the causes of Force Majeure and neither the Company nor the bidder shall be liable to pay extra costs.
54) TERMINATION OF CONTRACT :-
54.1 MOIL LIMITED reserves the right to terminate the contract, in full or in part, if :
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54.1.1 The contractor defaults in proceeding with the works due to lack of diligence and / or in complying with any of the terms & conditions, stipulated in the contract.
54.1.2 The contractor fails to complete the works, as per the scheduled contract, before stipulated date of completion.
54.1.3 The contractor or Firm or any of the partner represented by the contractor, in the subject contract is adjudged as Insolvent by the concerned authority.
54.1.4 The contractor assigns / transfers / sub-lets the entire work or a portion thereof without the approval of the Accepting authority.
54.1.5 The contractor offers to give or agrees to give, in person of the Company’s service or gift or any other consideration, as inducement or reward for seeking benefits in the contract.
54.2.1 Termination of the contract in full or part – The officer in charge shall determine the amount, if any that is recoverable from the Company, for the completion of the work, together with penalties and loss or damage, suffered by the Company as a result of the above termination.
54.2.2 The amount so worked out by the officer in charge, shall be recovered from moneys, due to contractor, on any account and if such moneys are not sufficient the contractor shall be called to pay the same within 30 days.
54.2.3 If the contractor fails to pay to the Company, the required sum within the stipulated period of 30 days, the officer in charge shall have the right to sell part or all of the materials / plant / equipment / implements / temporary buildings etc., belonging to the Contractor and appropriate the proceeds of the same thereof, towards the satisfaction of any sum due from the contractor. Any sum from the above proceeds in excess of the amount due to the Company and any unsold materials / plant, implements, temporary buildings etc. shall be repaid to the contractor, provided always that if cost or anticipated cost of the completion by the company of the work or part is less than the amount which the contractor should have been paid had he completed the work.
54.3 Termination of Contract, on death :-If the Contractor is an individual or a proprietary concern and the individual or the proprietor dies or if the Contractor is a partnership concern and one of the partners dies, then unless the Accepting Authority is satisfied that the legal representatives of the individual Contractor or of the proprietor of the proprietary concern and in case of partnership, the surviving partners are capable of completing the contract, the Accepting Authority shall be entitled to cancel the contract, as to its uncompleted part, without the Company in any way being liable to payment of any compensation to the estate of the deceased Contractor and / or to the surviving partners. In the event of such cancellation, the Company shall not hold the estate of the deceased Contractor and / or the surviving partners of the firm liable in damages for not completing the Contract.
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55) FORECLOSURE :-
If at any point of time, after the acceptance of the tender, the Company decides to abandon or reduce the scope of the contract work, for any reasons whatsoever, the Officer in Charge shall give notice in writing, to that effect to the Contractor and the Contractor shall have no claims to any payment, on account of compensation or on account of profit advantage, that he would have derived by way of execution of work, but could not do so, because of foreclosure.
However, the Contractor shall be paid at contract rates, full amount for works executed at site and a reasonable amount as certified by the officer in charge, for the items mentioned hereunder, which could not be utilised, on the work to the full extent, because of foreclosure :
55.1 Any expenditure incurred on preliminary site work e.g. temporary
access roads, accommodation, water storage tanks etc.
55.2 The Co. shall decide whether to take over any of the Contractor’s materials or any part thereof, whose supply was accepted at site, provided however, that the Co. shall take over only such materials or part thereof, as the Contractor does not desire to retain. The cost of such materials that shall be paid to the Contractor shall take into account purchase price, cost of transportation.
55.3 For Contractor’s materials, not retained by the Co. reasonable cost
of transporting such materials from site to permanent stores of the Contractor or to his other works, whichever is less shall be paid to him.
55.4 If any materials supplied by the Company to the Contractor are
rendered surplus, the same shall be returned by the Contractor to the Company at rates, at which they were originally issued and a reasonable cost on account of transportation from the site to the stores of the Co.
55.5 The Co. shall pay to the contractor, a reasonable compensation for
transfer of Tools, Plant & equipment from site to Contractor’s permanent stores or to his any other work site, which ever is less.
56) ARBITRATION :- Except where it is provided otherwise, any
dispute or difference arising out of , or in connection with the work or any operation covered by the contract and any dispute or difference arising out of, or in connection with agreement, entered into between the Company and the Contractor, including any dispute or difference relating to the interpretation of the agreement or clause thereof, shall be referred to the sole arbitration of a person, appointed by the Chairman cum Managing Director of the Company and the provisions of the Indian Arbitration & Conciliation Act 1996 and the rules there
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under and any amendments thereto, from time to time, shall apply. No objection shall be taken on the ground that the arbitrator, so appointed is an employee of the Company and that he has or had to deal with the matter, to which the agreement or the reference or that in the course of his duties, he had to deal with the matter, to which the agreement or the reference or that in the course of his duties, he had dealt or expressed view on all or any of the matter, covered by the reference.
The award of the arbitrator shall be binding on all the parties to the Contract. The arbitrator shall be competent to decide whether any matter of dispute or difference referred to him, falls within the purview of the arbitration, as provided for above.
Work under the Contract shall be continued by the Contractor during the proceedings of the arbitration. The Contractor cannot stop the work unless the Company directs to do so in writing or decision is obtained from the Arbitrators. The Company may withhold the payment due for the work executed during Arbitration proceedings. Place of arbitration shall be Nagpur and language of arbitration shall be English.
57) CONSULTANT : a) A firm which has been engaged by the Company to provide goods
or work for the project and any of its affiliates will be disqualified from providing consultancy services for the same project. Conversely, a firm hired to provide consulting services for the preparation or implementation of a project and any of its affiliates, will be disqualified from subsequently providing goods or works or services related to the initial assignment of the same project.
b) The consultants or any of their affiliates will not be hired for any
assignment, which by its nature may be in conflict with another assignment of the consultants.
c) No Engineer or Gazzetted or other Gazzetted officer, employed in
Engineering or Administrative duties in an Engineering Department of the State / Central Government or of the owner is allowed to work as a Contractor or his employee for a period of two years after his retirement from government service, or from the employment of the owner without previous permission of the State / Central Government / owner. The contract, if awarded, is liable to be cancelled if either the Contractor or any of his employee is found at any time to be such a person, who had not obtained the permission of the State / Central Government or the owner as aforesaid before the submission of tender or engagement in the Contractor’s service as the case may be.
58) SUB – VENDER : The contract agreement will specify major items
of supply or services for which the contractor proposes to engage sub-vender. The contractor may from time to time propose any
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addition or deletion from such list and will submit the proposal in this regard to the officer in charge. Such approval of the officer in charge will not relieve the contractor from any of his obligations duties and responsibilities under the contract.
59) DEVIATION: Deviations sought by the bidder whether they are
commercial or technical must only be given within the schedule, prescribed for them. Any willful attempt by the bidders to camouflage the deviation, by giving them in the covering letter or in any other documents, than the prescribed schedules may render the bid itself non-responsive.
60) SUB CONTRACTING: If a contractor submits his bid, qualifies and does not get the contract because of his being, not the lowest, he will be prohibited from working as a sub-contractor for a contractor who is executing the contract.
61) This notice of tender shall from a part of the agreement
between MOIL and the successful contractor for the purpose of this contract.
62) In usual course, no machineries shall be provided to the
contractor by the Company. However, in emergent situation the required machineries may be provided to the contractor for such period as considered essential by the Company and the hiring charges for the same would be recovered, on the rates determined by the competent authority.
63) STATUTORY RULES & REGULATIONS : The Contractor shall be solely responsible for compliance with all labour laws, Payment of Wages Act, Employees Provident Fund Act, Workmen Compensation Act, Works Contract Act, Sales Tax Act, Value Added Tax act, Minimum Wages Act, Industrial Dispute Act 1947, Contract Labour (Regulation & Abolition) Act 1970, Mines Act 1952, Mines Rules 1955, Metalliferous Mines Regulation 1961, Explosives Act, Turnover Tax Act (where ever applicable) and other relevant Central / State Govt. Rules, Relevant DGMS Technical circulars, Recommendations of 10th. Safety conference etc. The Contractor shall take full responsibility for stoppage of work, as a result of non-compliance to above rules and violations pointed by the enforcing agencies thereof. The Contractor shall, at his own cost and time, rectify all the defects/violations pointed out by such statutory authorities.
Such stoppage of work shall not be taken as a valid reason for not achieving the targets and the Company shall be free to impose penalty, stipulated, in the tender document.
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The Contractor shall defend, indemnify and hold the Company harmless from any liability or penalty which may be imposed by the Central / State or local authorities, by the reasons of any assorted violation, by the Contractor and also from all claims, suites or proceedings that may be brought against the Company.
64) INSURANCE: From commencement to completion of the works,
the contractor shall have full responsibility for the case thereof and for taking precautions to prevent loss or damage to the assets at site and works under completion, the contractor will obtain an comprehensive insurance policy covering all risks, damages, loss etc. The Contractor shall provide in the joint names of the Employer and the Contractor, insurance cover from the start date to the end of the Defects liability period, in the amounts and deductibles stated in the Contract data for the following events which are due to the Contractors risks.
a. loss of or damage to the works, Plant and materials.\
b. loss of or damage to Equipment.
c. loss of or damage of property (except the Works, Plant, Materials
and Equipment) in connection with the Contract and
d. Personal injury or death
Policies and Certificates for insurance shall be delivered by the Contractor to the Nodal Officer or his nominee for the Nodal Officer or his nominee’s approval before the start date. All such insurances shall provide for compensation to be payable in the types and proportions of currencies required to rectify the loss or damage incurred. If the Contractor does not provide any of the policies and certificates required, the Employer may effect the insurance which the Contractor should have provided and recover the premiums from the Employer has paid from payments otherwise due to the Contractor or if no payment is due, the payment of the premium shall be a debt due. Alterations to the terms of insurance shall not be made without the approval of the Nodal Officer or his nominee. Both parties shall comply with all conditions of the insurance policies.
65) FINANCIAL REQUIREMENT :
65.1 The tenderer should submit the following, along with the PART I of the tender.
i) Copy of the latest Income Tax return acknowledgement for preceding 3 years filed with the Income Tax department along with the Xerox copy of the PAN card.
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ii) Solvency certificate from the nationalized or scheduled banks for a value not less than Rs. 5.00 Crore issued within six month before the date of N.I.T..
iii) Copies of all annual reports for the last five years in case of a company and Balance Sheet and Profit & Loss account in case of others.
65.2 The party will be considered for the award of the work, and for qualifying in PART II of the tender, only if:
a. It has carried out similar type of work at least 30% of the value of the present tender, in a single contract satisfactorily in the past ten years. The party should indicate clearly in the annexure II, enclosed to this tender, whether they fulfill this criteria along with documentary proof.
b. The party’s turn over for the last three years should be at least equal to the value of the present tender.
66) The contractor shall furnish to the Company complete information as may be required for compilation and submission of various returns / reports to different authorities from time to time.
67) The contractor shall submit the list of equipment which will be
used by contractor for execution of works.
68) The contractor shall carefully read terms and conditions and the same shall be signed by him or his authorized representative, in token of acceptance of the same.
69) COMPLETION PERIOD: A completion period of 48 (Forty eight)
months (from the date of 30 days from date of issue of LOI/LOA or handing over the site whichever is later) has been envisaged for the project.
70) LIQUIDATED DAMAGES FOR DELAY: Achievement of the
targets, in accordance with the schedules, shall be the essence of the contract. In case of any under achievement of the set targets for each target period, commencing from the first day of the work, the Contractor shall be liable to pay Penalty, at the rate of ½ % per week up to a maximum of 10 % in respect of unfinished component of work. (as determined by the Project In Charge at Head Office) as on the date of completion.
71) RATE OF PROGRESS: The whole of the materials, plant and labour to be provided by the contractor under scope of work and the mode, manner and speed of execution and maintenance of the works are to be a kind and conducted in a manner to satisfaction of Engineer-in-charge. The rate of progress of work at
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any time in the option of the Engineer-in-charge too slow to ensure the completion of the work by the scheduled time or extended time for competition, Engineer-in-charge shall so notify the contractor in writing and the contractor shall thereupon take such steps as the contractor think necessary and the Engineer-in-charge may approve to expedite progress as to complete the work by prescribed time or extended time for completion, as the case may be.
72) DEFECTS & WARRANTY:
a. Definition of period of warranty: In these conditions the expression ‘Period of warranty’ shall means the period not less than 12 (Twelve) months from the date of issue of final acceptance/ completion certificate by the Engineer-in-charge in terms of the contract. The contractor shall warranty that the equipment will be free from defects in design, material and workmanship.
b. Execution of work of repairs: The contractor’s obligation under the warranty expressed in the above paragraph shall be for repairing, amending, re-constructing, rectification, shrinkage or replacement of defective equipment /part/component/works at site at his own cost with all transport charges. If it becomes necessary for the contractor to replace or renew any defective equipment, the provision of this article shall apply to the replacement, until the end of six months from the data of end of the period of 12 months after completion of test.
c. Cost of execution work or repairs etc.: All such works shall be carried out by the contractor at his own expense if the necessary thereof shall in the opinion of the engineer-in-charge be to the use of material or workmanship not accordance with the contractor or to neglect or failure on the part of contractor to comply with obligation expressed or implied on the contractor’s part under the contract.
d. Remedy on contractor’s failures to carry out as required: If contractor fail to do the any such work as aforesaid required by the Engineer-in-charge, the company shall be entitled to carry out such work by his own workmen or by any other contractors and if such work is part of the work which the contractor should have carried out at contractor’s own cost shall be entitled to recover from the contractor, the cost thereof or may deduct the same from any money due to contractor.
73) Mobilization Advance : As per CVC guidelines mobilization advance is to be discouraged hence no advance payment shall be made during the currency of this work.
74) On receipt of LOI / LOA issued by the company for acceptance of the tender, the successful tenderer shall sign the Agreement for the due fulfilment of the contract. Failure to enter into the required Agreement within specified period shall entail forfeiture of the Earnest Money. The written Agreement to be entered into between the contractor(s) and the company, shall be the
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foundation of the rights of both the parties and the contract shall not be deemed to be in force until the Agreement is signed by both the parties i.e. Contractor and Company. The pro forma for Agreement is enclosed as Annexure in Tender Specification Document.
75) PAYMENT OF BILLS: This term regarding payment will govern this tender. The tenderer are requested not to put any additional condition in their tender and shall quote strictly as per the following terms of payment. All bills certified by the Engineer In Charge at site, shall be submitted to the Finance department at Head Office, after routing through the Mine Manager, Agent & Dy.GM(Mines) and approval of the Project In Charge at head Office.
76) The payment terms shall be as follows:
76.1 EXCAVATION, R.C.C., CONCRETE, SUPPORT & PREPARATORY WORKS: The Contractor shall submit the bill for the work done during the previous month in accordance with the joint measurement to the Engineer In-charge in the first week of every month. The results of such joint measurements should be recorded and jointly signed in a bound book. The Engineer In-charge shall certify the quantities and arrange for payment of Contractors bill after allowing adjustments for the supply and services rendered by the Company and for other deductions.
76.2 DESIGN: 90% of the payment after approval of the Scheme / Drawing (s) by the Project-In-charge at Head Office.
76.3 SUPPLY:
(a) 80% of the value of the supply within 30 days from the date of receipt at site and acceptance of the same by Engineer In-charge after verifying test reports of materials as per the IS Code, as applicable.
(b) 10% within 30 days of mechanical completion. 76.4 FABRICATION AND ERECTION:
90% of the value of Fabrication and Erection charges proportionate to progress of work on monthly basis against certification by the Engineer In-charge.
76.5 INSTALLATION AND COMMISSIONING:
90 % of the value of commissioning charges within 30 days of satisfactory commissioning.
76.6 DESIGN, SUPPLY, INSTALLATION, TRIAL & COMMISSIONING (Only for Item Sr. No.-XVI of price bid):
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For the items comprising of design, supply, installation, trial & commissioning, the payment schedule will be as follows after completion of the various phases
(a) Designing- 5% of the value of the item. (b) Supply – 60% of the value of the item within 30 days from the
date of receipt at site and acceptance of the same by Engineer In-charge after verifying test reports of materials as per the IS Code, as applicable.
(c) Installation/erection – 15% of the value of the item. (d) Trial & commissioning – 10% of the value of the item.
In case of (b) & (c ) above proportionate amount with respect to progress of supply /Installation/erection in various phases shall be considered for payment against certification by the Engineer-in-charge. In case of (b) above 70% payment (70% of 60%) shall be released after completion of supply of mechanical components (Drums, Main shaft, Pedestal bearings, Clutch, Brakes, Couplings, Gear box, Hydraulic power pack and other miscellaneous mechanical items) and remaining 30% payment (30% of 60% ) shall be released after completion of supply of balance items comprising of Electrical panel, Drive panel with PLC, Motor, Control desk for winding engine driver & Master banksman, Signaling system & accessories, Sensors and other miscellaneous electrical.
76.7 SUPPLY AND INSTALLATION For the items comprising of supply and installation, the payment
schedule will be as follows: (a) Supply – 80% of the value of the item within 30 days from the
date of receipt at site and acceptance of the same by Engineer In-charge after verifying test reports of materials as per the IS Code, as applicable.
(b) Installation/erection – 10% of the value of the item within 30 days of completion of installation.
76.8 BALANCE PAYMENTS:
Balance 10% of the value of design, supply, fabrication erection, installation and commissioning within 30 days of issue of completion certificate by MOIL subject to the Contractor furnishing the bank guarantees in MOIL’s Proforma valid for a period of twelve months from the date of issue of completion certificate, with additional three months for claim period.
76.9 LUMP SUM IN TENDER:
For the item in Tender where it includes lump sum in respect of parts of work, the Contractor shall be entitled to payment in respect of terms at the same rates as payable under this Contract, for such items or if the part of the work in question is not, in the opinion of the Engineer In-charge capable of
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measurement or determination, the Company may, at its discretion pay the lump sum amount entered in the Tender or a percentage thereof and the certificate in writing of the Engineer In-charge shall be final and conclusive with regard to any sum or sums payable to the Contractor under the provisions of this clause.
76.10 Income Tax, Surcharge and Education Cess levied thereon or
leviable by the Government will be deducted from the running bills at the prevailing rates applicable from time to time. Similarly Works Contract Tax, VAT/State Govt. Taxes/levies as applicable from time to time shall be deducted at prevailing rates.
76.11 All prior certificates upon which payments have been
made as per above sub-clauses 76.1 to 76.9 are subjected to correction in the final Certificate.
76.12 All such payments as per above sub-clauses 76.1 to 76.9 shall
be regarded as payments by way of advance against the final payments and not as payments for work actually done and completed and the Contractor shall Supply, Design, Excavate, Fabricate, Erect, Construct and Commission as a result of Bad, Unsound, Imperfect or Unskillful work executed by him earlier without any additional payment.
76.13 WITHOLDING OF PAYMENTS TO CONTRACTOR AND
COMPANY’S LIEN ON MONEY DUE TO THE CONTRACTOR: Payments may at any time be withheld or reduced if in the opinion of the Company the Contractor is not diligently and efficiently endeavoring to comply with the terms of the Contract or if the Contractor fails to pay wages to his labour or for material. The Company shall have a lien on all amounts that may become due and payable to the Contractor under this Contract or transaction of any nature whatsoever between the Company and the Contractor and the security deposit furnished by him under the Contract or any sum that may become due and payable to the Contractor till the Contractor pays and clears the claim immediately on demand. The final bill shall be submitted by the Contractor within one month of the completion of the work; otherwise the Engineer In-charge’s certificate of measurement and the total amount payable for the work accordingly, shall be final and binding on both the parties.
76.14 FINAL PAYMENT AND RELEASE:
On completion of the work the Project-In-charge at Head Office will issue a completion certificate. The Contractor while applying for completion certificate shall incorporate the following documents: -
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(a) The Technical documents according to which the work is carried out, and as built drawings, if any, and
(b) Three sets of construction drawings, if any, showing therein modifications and correction made during the course of execution signed by the Engineer In-charge,
(c) Certificate for “Embedded”, and “Covered up” works, if any, (d) Performance guarantee, if any, (e) Certificate of test performed for various works, if any, and (f) Material appropriation statement for the material issued by
the Company for the work and the list of surplus material returned to the Company’s stores duly supported by necessary documents.
76.15.1 The work shall not be considered to be complete unless the
provisions of the clause 42 & 50 are complied with.
76.15.2 After the issue of the completion certificate by the Project-In-charge at Head Office, as aforesaid and on the particulars contained therein, the Company shall determine the total value of the work done by the Contractor and after adjusting all sums paid to him already or due to the Company, and such further sums as the Company may require to reserve or retain under the terms of Contract, and release final payment.
Such final payment shall be made only when the Contractor furnishes the Company an undertaking to the effect that he has no further claim of whatever nature of description on the Company.
76.15.3 No claim should be filed by the Contractor and Company will not
be liable to pay any money to the Contractor except as specifically provided for in the Contract. Acceptance by the Contractor of the final payment as aforesaid shall release the Company in full, of all liabilities on account of the contract.
77) FINAL CERTIFICATE:
Upon the expiry of the period of liability and subject to the Engineer In-charge being satisfied that the works have been duly maintained by the Contractor and that he has performed all his obligations under the Contract, the Engineer In-charge shall (without prejudice to the right of the Company to retain the provision of relevant clause hereof) otherwise give a certificate herein referred to as the final certificate to that effect and the Contractor shall not be considered to have fulfilled the whole of his obligations under the Contract until final certificate shall have been given by the Engineer In-charge not withstanding any previous entry upon the work and taking possession , working or using of the same or any part thereof by the Company. Final certificate shall be issued only after compliance of the instructions as per clause-(76.14).
78) RELEASE OF SECURITY DEPOSIT:
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78.1 Not withstanding issuance of completion certificate of the work
by the Company to the Contractor and final payment by the Company to the Contractor and notwithstanding any provision contained in the Contract documents, the Contractor shall be responsible for faulty material and / or workmanship which appears within the period of liability reckoned from the date on which the entire work, executed in strict conformity with the specifications, shall have been completed and handed over by the Contractor to the Company and expected by the latter by issuance of completion certificate. The Contractor shall remedy the defect due thereto and pay for any damage resulting there from which appears within the said period of liability. Such defect and damage being assessed by the Company in its sole judgment in regard to both nature and value thereof. In the event that the such defect and / or damage observed the Company shall promptly give notice to the Contractor specifying the nature of the defect and / or damage and the value of the damage assessed by the Company, and calling upon the Contractor to remedy the said defect and to pay for the said damage within the time so specified. In the event that Contractor fails to remedy such defect or to pay for such damage within the time specified as aforesaid, the Company shall have the right without prejudice to other rights and remedies that may be available to it on its behalf to set off the cost of remedying such defect whether by itself or through other agencies and recover the value of such damage from Contractor’s security deposit.
78.2 Interest will not be payable on security deposit. 78.3 Security deposit will be released after the expiry of twelve months
from the date of final acceptance of the work, provided that the work is completed to the satisfaction of Project-In-charge at Head Office and rectification, if any, has been done.
79) POST AUDIT:
The Company reserves the right to carry out a post payment audit and / or technical information of the work and the final bill including all supporting vouchers, abstracts etc. and to enforce the recovery of over payment, if any, discovered in respect of any work done by the Contractor or alleged to have been done by the Contractor under the Contract and such recovery will be made by the Company from any payment due or that may become payable to the Contractor including security deposit and / or other deposit and in case no such payment is due to the Contractor, the Contractor will pay dues within 10 days from the date of demand by the Company .
80) SIGNATURE ON RECIEPT FOR AMOUNTS:
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The receipt for money or securities received by the Contractor under this Contract shall be signed by the person who has signed the agreement governing the Contract or the authorized representative of the Contractor.
81) ESCALATION: 81.1 Wage Escalation : Escalation in the labor wages during the execution of the work shall be calculated as per formula given in the Schedule “D”
Item Sr. Nos. of Price Bid given in the schedule-“D” on which wage escalation shall be applicable.
8811..22 :: MMaatteerriiaall EEssccaallaattiioonn ::
EEssccaallaattiioonn ffoorr mmaatteerriiaall ccoommppoonneennttss dduurriinngg tthhee eexxeeccuuttiioonn ooff tthhee wwoorrkk sshhaallll bbee ccaallccuullaatteedd aass ppeerr ffoorrmmuullaa ggiivveenn iinn sscchheedduullee ““FF””
Item Sr. Nos. of Price Bid given in the schedule-“F” on which material escalation shall be applicable.
Escalation will be given during the scheduled completion period. Escalation shall also be considered beyond scheduled completion period if delay has occurred due to fault on part of the Company. However, no escalation shall be considered beyond the scheduled completion period if delay is due to fault on the part of the contractor. No escalation, other than above, on any other account shall be admissible.
82) STORES, MATERIALS & EQUIPMENTS: Normally no materials shall be supplied from the Stores (excepting those indicated in schedule B & C) but in case the same are supplied by the Company, at its discretion, from any of the available materials in the store, the same shall be at actual cost +25% administration and handling charges and service charges as applicable, unless specifically specified otherwise. The Company shall be not responsible or liable in any way for the supply of equipment, articles, materials or stores of any description, excepting those for which express provision has been made.
82.1 ISSUE OF MATERIALS: Material as per Schedule B & C will be supplied to the Contractor by the Company from his central / mine store as and when required, if available. It shall be the responsibility of the Contractor to take the delivery of the material, loading, transportation and un-loading at the site of the work at his own cost. The material shall be issued within the working hours as per the rules of the Company.
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82.2 The Contractor shall bear all incidental charges for the storage and safe custody of material at site after these have been issued to him.
82.3 The Contractor shall construct suitable go-downs at the site of the work for safe storage of the materials and to protect it against rain, dampness, fire, theft etc. He shall also employ necessary watch and ward for the purpose.
82.4 It shall be duty of the Contractor to inspect the material supplied to him at the time of taking delivery and satisfy himself that they are in good condition. After the material has been delivered by the Company it shall be the responsibility of the Contractor to keep them in good condition. If material are damaged or lost at any time after issue they shall be repaired / replaced by him at his own cost according to the direction of the Engineer In-charge.
82.5 The Company shall not be liable for delay in supply or non-supply of any material, which the Company has undertaken to supply where such failure or delay is due to natural calamities, act of enemies, transport and procurement difficulties or any circumstances beyond the control of the owner. In no case the Contractor shall be entitled to claim any compensation for loss by him on this account. However time extension will be granted after certification by the Engineer In-charge for such delays.
82.6 It shall be the responsibility of the Contractor to arrange in time all materials required for the work other than those to be supplied by the Company. However if in opinion of the Engineer In-charge, the execution of the work likely to be delayed due to Contractor’s inability to make arrangements for supply of materials which normally he has to arrange for, the Engineer In-charge shall have right to issue such material if available with the Company or procure the material from the market or elsewhere and the Contractor will be bound to take such material at the rates decided by the Engineer In-charge. This however, does not in anyway absolve the Contractor from responsibility of making arrangement for the supply of such material in part or in full. The Contractor cannot claim any time extension or any other relief because of non supply of such material.
82.7 The Contractor shall if desired by the Engineer In-charge execute an indemnity bond in the prescribed form, for safe custody and accounting of all the material issued by the Company.
82.8 The Contractor shall furnish to the Engineer In-charge, sufficiently in advance, a statement showing requirement of the quantities of the materials to be supplied by the Company and the time when the same will be required by him for the work, so as to enable the Engineer In-charge to make necessary arrangement for procurement and supply of materials.
82.9 A daily account of material issued by the Company shall be maintained by the Contractor indicating the daily receipt, consumption and balance in hand. This account shall be maintained in the manner prescribed by the Engineer In-charge. This account shall be always available for inspection at the Contractor’s site office.
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82.10 Any item issued from the Mine has to be recorded and regularized through Mine’s store vide proper receipts and challans.
82.11 The Contractor should ensure only the required quantities of materials are got issued. The Contractor shall not be entitled to claim cartage and incidental charges for returning the surplus material if any, to the stores where from they were issued or to the place as directed by the Engineer In-charge.
82.12 Material / Equipment supplied by the Company shall not be utilized for any other purpose (s) than issued for.
82.13 All materials supplied to the Contractor shall remain the absolute property of the Company and shall not on any account be removed from the site of work, and at all times be open for inspection by the Engineer In-charge.
82.14 The Contractor will not have any claim for compensation on account of any such material so supplied to him as aforesaid being unused by him or for any wastage of or damaged to any such material.
82.15 All items brought inside the Mine gate must be supported by the delivery challans / gate pass duly endorsed and entered at security gate.
82.16 All materials issued by the Company to the Contractor, shall be preserved against the deterioration and corrosion by proper storage while under Contractor’s custody. Any damages / losses suffered, on account of non-compliance with the requirements stipulated herein shall be considered as losses suffered due to willful negligence on the part of the Contractor and he shall be liable to compensate the Company.
82.17 As far as possible material shall be transported to the site of erection only just prior to the actual erection and shall not be left lying around indefinitely. Instruction of the Engineer In-charge should be followed strictly in this regard.
82.18(a)- Not withstanding anything contained to the contrary in any or all the clauses of this contract where any material for the execution of the contract are procured with the assistance of the Company either of issue of owner’s stock or purchases made under orders, or permits or licenses issued by government, the Contractor shall hold the said material as trustee for the Company and use such material economically and solely for the purpose of the contract and not dispose them off without the permission of the Company and return, if required by the Engineer In-charge, all surplus and / or unserviceable material that may be left with him after the completion of the contract or at its termination for any reason whatsoever on his being paid or credited such price as Engineer In-charge shall determine having due regard to the condition of the material. The price allowed to the Contractor, however, shall not exceed the amount charged to him. The decision of Engineer In-charge shall be final and conclusive in such matters. In the event of breach of aforesaid condition, the Contractor shall in terms of the licenses, or permits and / or for breach of trust, be liable to compensate the
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Company at the same rate or any higher rate or if not being available in the market, than at any other rate to be determined by the Engineer In-charge and his decision shall be final and conclusive.
82.18 (b) MATERIAL RECONCILIATION:
(i) Contractor has to give a complete statement for material reconciliation against each item issued once in every three months and on completion of the work. None of the material supplied to the Contractor will be utilized for manufacturing an item, which can be obtained from the manufacturer in the finished form. (ii) For any short fall in quantity of material, due to any reason whatsoever excepting the permissible losses, corresponding amount will be recovered from the Contractor at purchase price plus 10% handling charges. (iii) In case of structural steel the maximum admissible unusable scrap limit will be 5% of the quantity of steel used. The maximum admissible limit for unaccountable scrap is 1%. The rest of the scrap is to be deposited in Mine store. Any scrap more than 5% of the steel used will be on account of the Contractor. (iv) All other items will be issued in numbers on actual quantity required basis and the same has to be accounted in the statement.
82.19 HIRE OF COMPANY’S PLANT AND EQUIPMENT:
82.19.1 Any equipment like winches, winder for sinking /deepening etc., if available may be provided by the Company to the Contractor at mutually agreed hire charges.
82.19.2 Repair / maintenance shall be carried out by the Contractor. It will be responsibility of the Contractor to procure and use spares for routine maintenance.
82.19.3 The Contractor shall take reasonable care of all tools, plants, materials or other property belonging to the Company provided for the purpose of the work and responsible for all damages and losses caused by him, his project manager or his workmen or others while they are in charge. The Contractor shall be solely accountable for tools, plants, and materials provided to him and handover the same back to Company in good order.
82.19.4 The Company shall recover the value of losses or damages to any of the equipment provided to the Contractor as it may deem fit. The Company may withdraw the facilities extended to Contractor at any time in case of mishandling / or misuse.
83) TAXES & DUTIES : No escalation shall be payable during the currency of the contract unless specifically provided for in the contract. Taxes & duties shall be reimbursed at actual against documentary evidence as applicable during the currency of contract. VAT, Excise duty, CVD,Sales Tax, Entry tax, Aux. sales tax, Education cess, WCT and Service Tax etc. component wherever applicable should be clearly indicated as (a) the rate of Tax (b) abatement, if any OR Composite rate of Tax. Any increase in Taxes / Duties beyond the Contractual period shall not be payable.
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84) DRAWINGS AND SPECIFICATIONS:
84.1 Adequate care has been taken in preparation of drawings and specifications, however any discrepancy between the specifications and the drawings or error, omission or ambiguity in the specifications or the drawings shall not invalidate the contract. The Contractor shall check all drawings furnished to him immediately upon their receipt and shall promptly notify to the Engineer In-charge of any omission or discrepancies or mis-description in the drawings and obtain the instruction of the Engineer In-charge. Any work carried out by the Contractor after discovery by him of such discrepancy, error, omission, or ambiguity, without permission by the Engineer In-charge will be entirely at Contractors risk.
List of drawings has been mentioned at Schedule-“E” and the detailed drawings shall be provided during execution of work, which has been mentioned in the price bid. The quantities provided in the price bid format for which company has provided drawings at Schedule-“E” shall be governed as per clause 102.4- 102.6 (commercial part) of tender document.
84.2 Work (s) shown upon the drawings but not mentioned in the specifications or described in the scope of work without being shown on the drawings shall nevertheless be held to be included in the same manner as if they had been specifically shown upon the drawings and described in the specifications.
84.3 Any work, for which no specifications or drawings have been prescribed or issued by the Company, will be carried by the Contractor in all respects in accordance with the instruction of the Engineer In-charge.
84.4 Drawings and Prints of Articles or machinery or fabricated materials of work entering into or forming part of permanent construction which are not provided by the Company and which are required to be furnished shall be submitted by the Contractor to the Engineer In-charge for approval. Such approval shall not however waive or modify any other provision (s) of Tender document.
84.5 The entire responsibility of executing work in an efficient manner and in conformity with the Company’s drawings and specifications with all modifications shall be that of the Contractor except to the extent and for the purposes for which liability been assumed expressly under the said documents by the Company.
84.6 The drawings for the work as listed herein show conditions, as they are believed by the Company to exist based upon the interpretation of field observations. It is not intended and should not be inferred that the conditions as shown therein constitute a representation by the Company or its representative that such conditions actually exist, neither shall the Contractor be relieved of liability under the contract nor the Company or any of its representatives shall be liable for any loss sustained by the Contractor as a result of any variation between conditions as
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shown on the drawings and actual conditions revealed during the progress of the work.
84.7 One complete set of drawings furnished for the work shall be kept in good condition for the job besides all the prints used in actual execution by the Contractor. This set shall be designated “ Record Prints”. A complete and exact record of any and all differences between the work as actually executed, constructed, erected, and the design indicated on the drawings shall be recorded on the “ Record Prints “ . Changes made from the Design, Drawings shall be got approved from Engineer In-charge before any alteration work is started. All “Record Prints” shall become the property of the Company.
85) REVISION OF DRAWINGS: Revision of drawings will be made as and when deemed necessary
by the Engineer In-charge during the progress of the work. Additional detailed drawings will be supplied to the Contractor as and when required. These additional / revised drawings shall be considered as forming part of the contract.
86) DRAWINGS TO BE FURNSIHED BY THE CONTRACTOR: Where Drawings / Specifications are to be furnished by the
Contractor the same may be furnished within the specified time where approval of drawings before manufacture / construction / fabrication has been specified, it shall be Contractors responsibility to have these drawings prepared as per the directions of Engineer In-charge and got approved before proceeding with manufacture/ construction / fabrication as the case may be. Any changes that may have to become necessary in these drawings during the execution of work shall have to be done by the Contractor to the satisfaction of Engineer In-charge at no extra cost. All final drawings shall bear the certification stamp as indicated below dully signed by both Contractor and the Engineer In-charge.
87) CONTRACTOR’S PLANT, EQUIPMENT, EMPLOYEE AND METHOD OF WORK:
87.1 The Contractor shall supply at his own cost all material and equipment (except as mentioned in schedules and available with the Company), tools, appliances, implements, scaffolding and temporary works required for the proper execution of the work. The Contractor shall also provide without charge the requisite number of persons, with means and materials necessary for the purpose of setting out work and part counting, weighing, and assisting in the measurement and / or for inspection at any time during execution of the work, failing which the same may be provided by the Engineer In-charge at the cost of the Contractor and the same may be deducted from any money due to the Contractor under the contract, or from his security deposit or from the proceeds of the sale, or a sufficient portion thereof. The Contractor shall also comply with all applicable legislation including provisions under Mines Act 1952 and MMR 1961 and relevant rules and regulations, and is liable to pay for damages arising due to noncompliance and
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shall be bound to bear the cost of defense of every suit action, or other legal proceedings that may be brought by any person for injury sustained due to non-compliance of the provisions, and to pay damages and costs which may be awarded in any such suit, action or proceedings to any such persons or which may with the consent of the Contractor be paid in connection with any compromise or claim by such persons.
87.2 The plant and equipment such as Winders, Winches, Compressors, Scaffold, Pumps and necessary Pipe lines required for sinking/ and furnishing operation shall be provided by the Contractor and his method and organization for executing the work shall be in conformity with provisions of Mines Act 1952, Mines Rules 1955 and MMR 1961 and any instruction specifically given by the Company and / or Engineer In-charge shall be so carried out by taking all precautions for safety reasons.
87.3 The Contractor shall give full information in advance of his plans for carrying out each part of the work to Engineer In-charge. At any time before commencement or during the work of progress, if it appears to the Company that the organization of the Contractor is insufficient / inadequate to deliver the progress / quality of work, as required, the Company may order the Contractor to change or improve his plant, equipment, facilities, methods or organization and the Contractor shall promptly comply with such orders but compliance with the such orders shall not relieve the Contractor of his obligations to secure the degree of safety, the quality of work and the rate of progress required under the contract. The Contractor shall be responsible for the safety and adequacy of his plant, equipment and method.
88) SUPERVISION OF THE WORK BY THE CONTRACTOR:
88.1The Contractor shall have the sole and exclusive responsibility for the supervision of the work and all workmen engaged therein. It shall be obligatory on the part of the Contractor to keep statutorily qualified personnel including blaster, winding engine drivers, mining mates and mine foreman and Asst. Manager all the time when work is in progress as required under the various statutes presently in force.
88.2 The Contractor shall name and depute a qualified person having sufficient experience in carrying out work of similar nature to whom the equipment, material, if any shall be issued and instructions for work is given.
88.3 The Contractor shall also provide to the satisfaction of Engineer In-charge, sufficient number of qualified staff for supervision and execution of the work i.e, Foreman, Mining mate and Leading hands etc. Such persons should have the requisite qualifications and previous experience to supervise and execute the type of work in such a manner that will ensure work of the best quality and timely completion. The Contractor shall ensure to the satisfaction of Engineer In-charge that efficient supervision by competent
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person is provided if the work is being executed by the sub-Contractor.
88.4 The Contractor shall keep at all times on the work site while the work is in progress, a properly qualified and competent project manager duly authorized and empowered to act for him and to receive on his behalf all such notices and communications as the Company and / or the Engineer In-charge may wish to issue from time to time. From the moment the project manager so appointed takes charge of the work such notices and communications shall operate as if the Contractor himself received them and all acts done by the Project Manager shall be “Quit facit per alium perse”, which means “He who does through another does by himself.” The act of Project Manager is the act of the Contractor as binding as if done by the Contractor himself, not withstanding absence of formal authority or definite instructions from the Contractor to the said project manager or any purported restriction or powers or limitations of authority imposed by the Contractor. It shall be open to the Company to enforce the replacement of the project manager and / or any other employees of the Contractor in the event that the Engineer In-charge deems the projects manager or any other employee to be incompetent, or otherwise unacceptable at any time. The project manager shall arrange for receipt of material, supplies and equipment as per the Schedule.
88.5 The Contractor is expected to employ only Indian nationals. In case foreign expert (s) is / are required to be engaged he should specifically mention in the offer, but no foreign exchange will be payable by the Company. Wherever practicable, skilled / semi-skilled (if available) and unskilled personals are to be recruited locally for underground and surface work.
89) EXCAVATION & EXTENT OF EXCAVATION: 89.1 All the rocks within the neat line shall be excavated and no rock
projection shall fall within the limits of neat line. No payment will be paid for rock excavated beyond the limits of neat line.
89.2 In any excavation, over-break up to 5% by volume will be allowed Over-break beyond this limit may be made good by the Contractor at his own cost and in the manner approved by the Engineer In-charge without extension of time.
90) BLASTING DAMAGE: Contractor will be held responsible for any damage due to blasting and all blasting must be controlled to prevent shattering of excavated areas, installations, buildings, foundations, equipments, structures, etc.
91) FABRICATION, ASSEMBLY, ERECTION AND COMMISSIONING: 91.1 Fabrication of the structure shall be made as per the drawings
supplied by the Company or approved by the Engineer In-charge
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if supplied by the Contractor. All the joints of the Head Gear shall be riveted or as specified in the drawing.
91.2 Any component or part received separately from the main body of the equipment shall be assembled to the equipments as per the drawings, specifications of the manufacture or as per the instructions of the owner.
91.3 The Contractor’s responsibility shall consist of lifting of the material to the proper level by means of the erection tools, to be provided by the Contractor.
91.4 Before putting the equipment on the foundation it shall be the responsibility of the Contractor to check the orientation of all foundation, placing of anchor bolts and diameter of holes in the support / saddles etc.. If any minor adjustments are required the same shall be done by the Contractor after obtaining the prior approval of the owner.
91.5 The Contractor shall be entirely responsible for the perfect alignment and adjustment of machinery and equipment.
91.6 After the placement of equipment, it shall be properly fixed on to the structural foundation or grouted on the foundation.
91.7 Grouting of back holes with foundation bolts shall be carried out after placing of the equipment on foundation. Grouting below the base plate shall be done after finally checking the level and alignment and with the approval of the owner. Before final grouting, machinery / equipment shall be leveled on steel shims. These shims and wedges, wherever required shall be provided by the Contractor. The foundation bolt shall be fully tightened keeping proper grouting gap as per normal practice and / or specified by the manufacturers.
92) FENCING AND BARRICADES:
92.1 Contractor shall erect and maintain fencing and barricades required in connection with his operation to guard or protect: -
(a) Excavations, (b) Hoisting areas, (c) Areas adjudged hazardous by the Contractor or
the Company (d) Company’s existing property likely to be damaged by
Contractors operations (e) Unloading spots, and (f) Any other place as directed by Engineer In-charge
92.2 Contractor’s employees and those of his sub-Contractor shall become acquainted with owners barricading practice and shall respect the provisions thereof.
93) SCAFFOLDING:
93.1 Suitable scaffolding should be provided for the workmen for all works that can not safely be done from the ground or from solid construction except for such period where work can be done safely from ladders. When a ladder is used an extra person shall
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be engaged for holding the ladder and if the ladder is used for carrying the material as well, suitable foot holds and hand holds shall be provided on the ladder and the ladder shall be given an inclination not steeper than 1 in 4.(1 horizontal and 4 vertical).At surface suitable crane to lift the material can also be used having requisite sfety attachments.
93.2 Scaffolding or staging more than 4 m above the floor which is suspended from an overhead support or erected from the stationary support shall have guard rail properly attached, bolted, braced, otherwise riveted at least 1 m high above the floor or platform of such Scaffolding and Staging and extending along with entire length of the outside and the ends thereof with the only such openings as may be necessary for the delivery of the material. Such scaffolding or staging shall be so fastened as to prevent it from swinging. The clearance on the sides between the scaffold and excavation shall not be more than 150 mm.
93.3 Every opening in the working platform shall be provided with suitable means to prevent the fall of persons or material by providing suitable fencing or railing with a minimum height of 1.5 m
93.4 All scaffolds, ladders and other safety devices described herein shall be maintained in safe conditions and no scaffold, ladder or equipment shall be altered or removed while it is in use.
94) (A) HOISTING EQUIPMENT:
94.1 Use of hoisting machines, tools and tackles including their attachments, anchorage and supports shall confirm to the standards stipulated under MMR 1961.
94.2 These shall be of sound mechanical construction, good material and adequate strength and free from defect and shall be kept in good working order.
94.3 Every rope used for hoisting or lowering material or any means of suspension shall be of durable quality and adequate strength and free from defects.
94.4 In case of every hoisting machine and of every chain hook shackle swivel and pulley block used in hoisting or lowering or as means of suspension, the safe working load shall be ascertained by adequate means. Every hoisting machine and all safety gears referred to above shall be marked with the safe working load and the conditions under which it is applicable shall be clearly indicated. No part of any machine or any gear referred to above shall be loaded beyond the safe working load except for the purpose of testing.
94.5 In case of departmental machine, the Engineer In-charge shall notify the safe working load. As regards to Contractors machine, the Contractor shall notify the safe working load of the machine to the Engineer In-charge. Whenever he brings the machine to the site of work he should get it verified from the Engineer In-charge.
94.6 Motors, Gears, Transmission, Electric wiring, and other dangerous parts of hoisting appliances should be provided with
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efficient safe guards. Hoisting appliances should be provided with such means as to reduce to the minimum, the accidental descent of the load. Adequate precautions should be taken to minimise the risk of any part or any part of the suspended load being accidentally displaced. When workers are employed on electrical installations, which are already energized, insulating mats, wearing apparel such as gloves, sleeves, and boots as may be necessary should be provided. The workers should not wear any rings, watches and carry keys or other material, which are good conductors of electricity.
94.7 These safety provisions should be displayed on the notice board at a prominent place at the work spot. The person responsible for the compliance of safety code shall be named therein by the Contractor.
94) (B) OPERATION AND MAINTENANCE OF EQUIPMENTS: The Contractor will be responsible for operation, maintenance and repairs of all equipments, tools and tackles and the Company shall have no responsibility in this regard.
95) SUPPORT: 95.1 LOOSE ROCK :
Over hanging rock which cannot scaled down, shall be secured by Temporary supports including rock bolts or any other temporary & permanent support in a manner as directed by the Engineer In-charge.
95.2 TEMPORARY SUPPORT:
Wherever necessary, temporary support shall be provided / erected and maintained so as to keep the area in safe condition till the permanent support is provided or erected.
95.3 If in the opinion of the Engineer In-charge any other type of support is necessary Contractor shall comply with the instructions.
96) CONCRETE: 96.1 The section of specifications, supplements, the drawings
pertaining to mixing; testing and placing of reinforced cement concrete should be followed strictly.
96.2 Concrete shall not be poured until all surfaces with which it will come into contact are scaled, washed, and free from dirt, lose rock, oil, hardened mortar, or other objectionably coating or debris etc. Immediately prior to pouring, the Contractor shall examine the space behind frame work and remove any sloughed wall rock.
96.3 In saturated formations Contractor shall install weep pipes to prevent mixing of water with freshly poured concrete. Engineer In-charge may require the grouting of these weep holes after the concrete has set. Quick setting Cement shall be used as and when required.
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96.4 In saturated formations where a build-up of hydrostatic pressure is probable, the Engineer In-charge may order the installation of additional reinforcement or thicker lining or both.
96.5 Contractor shall maintain a record of all pours, showing dates, quantities, locations, weather and temperature conditions, a tabulations of code numbers of all test cylinders cast and the result of all slump tests. A copy of the record will be made available to the Engineer In-charge by the Contractor as and when required.
96.6 Contractor will notify Engineer In-charge at least 24 hours in advance of all pours so that Company’s representative may be present for inspection prior to and during the concreting.
96.7 No additives of any kind shall be used without a written approval of the Engineer In-charge. Reinforcement shall be free from dirt, Paint, Grease, Oil, Flaking, Rust and other destroyers of bond.
96.8 FORMWORK: All formwork used shall be furnished by the Contractor and must be approved by the Engineer In-charge prior to their use. Design and construction of the formwork must be such that true shape and alignment is maintained throughout. The lining emplaced shall be free from bulges, surface honeycombs and other defects, the motor leakage should be minimum. Formwork shall be maintained free from dents, twists, and bends and it should be sufficiently strong so that true dimension of the work is obtained.
96.9 ISI / BS SPECIFICATIONS: i) All reinforced & plain concrete shall conform to IS: 456-1978. ii) Concrete shall be lined as per IS: 516 – 1959. iii) Portland cement shall conform to IS: 12269 – 1987 (43 grade). iv) Fine and coarse aggregates shall conform to IS: 383 – 1970. v) All reinforcement shall conform to IS: 432–1982 or IS:1139–1966. vi) Formwork and stripping time shall conform to IS: 456 – 1978.
Only latest codes at the time of construction should be followed.
97) LINES AND GRADES: 97.1 It may be necessary at time to discontinue portions of the
Contractor work in order that the Engineer In-charge / surveyor may make routine measurements or surveys in the interest of the better accuracy of the results. On the request of the Engineer In-charge / Surveyor the Contractor shall discontinue his work to such an extent as may necessary for this purpose.
97.2 No payment shall be made for the cost, the Contractor bears for any work or for delay occasioned by the Engineer In-charge / Surveyors establishing or checking lines or grades or making other measurements or by the Engineer In-charge’s inspections. No extension of time is allowed for such delays.
97.3 The Contractor shall furnish all field engineering data including alignment, gradients, dimensions, etc. for his work to the Engineer In-charge / Surveyor whenever asked for. All lines gradients shall be subjected to checking and approval by the Engineer In-charge.
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Such checking shall not, however relieve the Contractor or his responsibility for accuracy of engineering work.
97.4 Contractor shall protect and preserve all survey stations till the end of the work unless the Engineer In-charge directs their removal.
98) SYSTEM OF MEASUREMENT:
Measurement may be taken along the defined centerline of the excavation.
98.1 On the first working day of every calendar month, the work completed during the previous month shall be measured by the Engineer In-charge / Surveyor in presence of Contractors representative. Similar measurement will be taken in any part that is completed and may become unapproachable, provided that Contractor gives not less than 24 hours notice. These measurements shall be recorded and signed by both the parties and shall be binding on both the parties.
98.2 Joint measurement as mentioned above will be for quick payment of advance against the bills. The Engineer In-charge / Surveyor will inform the Contractor to do the rectification in respect of Shape, Size, Gradient etc., if any, and the next payment of advance against the bills will be withheld till the rectification work, if any, is carried out completely by the Contractor to the satisfaction of the Engineer In-charge / Surveyor.
99) ALIGNMENT: It shall be the Contractor’s responsibility to excavate all the drives, crosscuts, raises, winzes and other excavations to correct alignment gradient and dimensions. Survey stations for control of lines and gradient shall be provided by the Company as and when necessary but day-to-day checking of the alignment and gradient shall be responsibility of the Contractor.
100) INSPECTION OF WORK: The Engineer In-charge or his representative will have full power and authority to inspect the work at any time wherever work is in-progress either on the site or at the Contractors premises / workshop wherever situated, premises / workshops of any persons firm or corporation where work in connection with the contract may be in hand or where materials are being supplied or are to be supplied and the Contractor shall afford or procure for the Engineer In-charge or his representative every facility and assistance to carry out such inspection. The Contractor shall at all time during usual working hours and at all other times at which reasonable notice of the intention of the Engineer In-charge or his representative to visit the works shall have been given to the Contractor, either himself be present to receive orders and instructions or have a responsible agent duly accredited in writing to be present for the purpose.
100.1 No material shall be dispatched from the Contractor’s stores before obtaining the approval in writing of the Engineer In-
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charge. The Contractor is to provide at all times during the progress of work and the maintenance period, proper means of access with ladders, gangways etc., and necessary attendance to move and adopt as directed for inspection or measurement of the work by the Engineer In-charge.
100.2 The Contractor shall make available to the Engineer In-charge free
of cost all necessary instruments and assistance in checking or setting out of works and in checking of any works made by the Contractor for the purpose of setting out and taking measurements of the work.
101.A) TESTS FOR QUALITY OF WORK:
101.1 All workmanship shall be of the respective kinds, described in the
contract document and in accordance with the instructions of the Engineer In-charge and shall be subjected from time to time to such tests at Contractors costs, as the Engineer In-charge may direct at the place of manufacture or fabrication or on the site or at all or any such places. The Contractor shall provide assistance, instruments, labour, and material as are normally required for examining, measuring and testing any workmanship as may be selected and required by the Engineer In-charge.
101.2 If any tests are required to be carried out in connection with work or material or workmanship not supplied by the Contractor such tests shall be carried by the Contractor as per the instructions of Engineer In-charge and the Company shall reimburse cost of such test.
101.B) SAMPLES:
The Contractor shall furnish to the Engineer In-charge for approval when required or if required by the specification, adequate samples of all materials and finishes to be used in the work. Such samples shall be submitted before the work is commenced and in time to permit tests and in examinations thereof. All material furnished and finish applied in actual work shall be fully equal to the approved samples.
LEGAL TERMS & CONDITIONS 102) INTERPRETATION OF CONTRACT DOCUMENTS:
Except if, and to the extent otherwise provided by the contract, the provisions of the conditions of various chapters of this Tender document shall prevail over those of any other documents forming part of the contract. Should there be any discrepancy, inconsistency, error and omission or any of them in the contract, the matter may be referred to the Engineer In-charge, who shall give his decision and issue instructions to the Contractor-directing manner in which the work is to be carried out. The decision of the Engineer In-charge shall be conclusive and final
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and the Contractor shall carry out the work in accordance with the decision of the Engineer In-charge.
LEGAL CONDITIONS TO OVERRIDE OTHER CONDITIONS: 102.1 General conditions, technical conditions, financial conditions,
specifications of work, drawings and any other documents forming part of the N.I.T shall be read in conjunction with the legal conditions. Not withstanding the sub-division of the documents in this chapter, every part of each sub-division shall be deemed to be supplementary to and complimentary to every other part.
102.2 The general conditions, technical conditions (including scope of work) financial conditions, and special condition (s), if any, will be subservient to legal conditions.
102.3 Wherever it is mentioned in the specification, the Contractor shall perform certain work or provide certain facilities, it is understood that Contractor shall do so at his own cost, except where payment of the work is indicated.
CHANGE IN WORK:
102.4 The quantities set out in the Schedule are indicative / estimated quantities of work and only these quantities executed by the Contractors shall not be taken as fulfillment of his obligations under the contract. The items and the quantities set out in Schedule may be increased or decreased. However such increase and reduction of the work will be restricted to actual basis subject to ±10% of the total work order quantity.
The Company may without invalidating the contract and without notifying the Contractor’s sureties, if any, require by the Contractor to perform extra items or quantity’s of work not included in Schedule can make changes, within the general scope of work covered by the contract or otherwise vary the work. The Contractor shall perform such extra items or compliance with such changes, variations in the manner and to the extent specified in written orders of the Engineer In-charge.
102.5 Any extra quantity of work ordered by the Company / Engineer
In-charge / and executed by the Contractor, for which rate shall have been provided for in the Schedule and the amount shall be paid for at such rate.
Any item which is not included in Schedule and is performed by the Contractor in terms of change in order as referred to in sub clause 102.4 thereof shall be paid for at such rates as may be mutually agreed upon between the Company and the Contractor. The rates for extra items will be fixed deriving them from similar items offered by the Contractor, if the opinion of the Engineer In-charge there is no similar item tendered the rate for extra item will be mutually agreed.
102.6 In the event that Schedule does not include a rate for any Item set out in any such change order, the Contractor shall be bound
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to bring the fact to the notice of the Engineer In-charge prior to commencement of such work.
103) RESTRICTION ON WORKINGS:
Contractor is allowed to work round the clock except on weekly day of rest and other holidays observed at Chikla Mine. In case the Contractor desires to work on any weekly days of rest or holidays, prior permission from the Engineer In-charge to be obtained. Contractor shall withdraw his men when Company or other Contractors are undertaking blasting operations in the vicinity. No delay charges will be accepted on this account.
104) RESPONSIBILTY OF THE CONTRACTOR:
104.1 The Contractor shall supply to each of the workers engaged by him a valid identity card. The identity card so supplied shall bear the workman’s name, designation, signature, attested copy of the photograph and age and identified by Contractor’s Project manager and counter signed by Engineer In charge of the Company. The Contractor shall ensure that his employees always carry with them their valid identity cards while on duty. The workers will not be permitted to enter the premises in the case if they do not carry the valid identity card.
104.2 Prior to the commencement of the work the Contractor shall notify to the Company regarding the working hours, weekly day of rest, date of wage payment, rates of wages to be paid by him to the workers. The same should also be displayed in the local language known to the workers at the place of work in legible condition.
104.3 The Contractor shall not engage any child or adolescent in any work. The Contractor shall not engage any workmen unless he proves his age, whenever necessary supported by medical certificate. The Contractor shall ensure the written declaration of the age of the workmen is given in the identity card and in the muster roll.
104.4 The Contractor shall be responsible for safety of his employees in all the places of the work and shall provide and enforce the use of such guards, safety boots, helmets, goggles and any safety gadgets, as may be required by MMR 1961. In case of non-compliance, the Engineer In-charge may provide the same and recover the cost from the Contractor. The Contractor shall intimate about the accident within 2 hours from the occurrence of the accident to the Engineer In-charge and shall make arrangements to render all possible assistance to such employees.
105) CONTRACTOR’S SUB-ORDINATES, STAFF AND THEIR
CONDUCT: The Contractor shall be responsible for the proper behavior of all
his supervisory staff and workmen and shall exercise a proper degree of control over them. The Contractor shall prohibit and prevent any employee trespassing or acting in any way, detrimental or prejudicial to the interest of the community. In the
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event of such trespassing by his employees, the Contractor shall be fully responsible and relieve the Company of all consequent claims or actions. The decision of the Engineer In-charge upon any matter arising under this clause shall be final.
106) TIME OF PERFORMANCE:
106.1 The work covered by this contract shall commence within fifteen days after acceptance of Tender and completed in stages on or before the dates as mentioned in the agreed Time Schedule. The Contractor should bear in mind that TIME IS ESSENCE OF THE CONTRACT.
106.2 Extension / Reduction in Completion Time:
The completion time will be suitably increased / decreased depending upon increase / decrease in quantities of work.
106.3 The Contractor shall adhere to the order of procedure and sequence stated in the Time Schedule unless he obtains the written permission of the Company or Engineer In-charge to vary such order of procedure or sequence. However, in an emergency which threatens the safety of the workings or of persons or other property, the Contractor may carry out such work as is necessary to meet the emergency without previous consent and a request should be submitted to the Engineer In-charge as soon as possible.
106.4 Time extension may be considered in following cases:
(a) When the complete work is suspended for one or more than one full shift on account of: - (i) Force majeure clause. (ii) DGMS, restrictions, provided that the same is not due to
Contractor’s fault. However, no extension of time will be granted if the work is suspended by the Engineer In-charge for violation of Rules and Regulations affecting safety by the Contractor, &
(iii) For any other reason due to unforeseen circumstances which satisfies the Engineer In-charge.
(b) The completion time will be suitably increased on account of extra work. No time extension will be granted for any rectification work.
(c) If the Contractor shall desire an extension of the time and / or
delay charges on the ground of his having been unavoidably hindered in its execution, he shall inform about delays and hindrances by way of daily progress report on the next day and consolidated monthly report in the first week of next month, If no request is made for delay charges / time extension within stipulated period, the Engineer In-charge may not entertain the same at a later date.
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107) POWER OF THE ENGINER-IN-CHARGE TO ORDER SUSPENSION
OF WORK:
107.1 The Engineer In-charge may, as he deems fit, by giving directions in writing and without invalidating the Contract, order the Contractor to suspend the work or any part thereof for such time and for such reasons as he may consider necessary. The Contractor shall not, after such directions to suspend the work or any part thereof has been given, proceed with the work or part thereof until he receives a written order from the Engineer In-charge to so proceed. In the event of such suspension, the Company may, under the provision of the Contract, extend the time for completion of the work or part thereof by such period as it may consider reasonable provided the suspension is not due to violation of Regulations by the Contractor. The decision of the Company in the matter shall be final and binding on the Contractor.
107.2 The work or any part thereof shall not be suspended by the Contractor under any circumstances without prior knowledge and approval of the Engineer In-charge excepting accidents(s) involving loss of life or serious bodily injury. If the Contractor proposes to suspend the work or any part thereof, he should report to the Engineer In-charge furnishing the reasons necessitating such suspension(s) of work in detail, and should obtain his prior written order before such suspension(s).
107.3 If it appears to the Engineer In-charge that any work has been
executed with unsound, imperfect or unskillful workmanship or with material or articles of unsound or of a quality inferior to the requirement of the Contract, the Contractor shall on order in writing from the Engineer In-charge, rectify or remove and reconstruct the work forthwith so specified in whole or in part as the case may be, remove the material or articles at his own cost notwithstanding that the same may have been passed, certified and paid for. In the event of his failing to do so within a period as specified by the Engineer In-charge in his aforesaid order then the Engineer In-charge may rectify, remove, re-construct and / or re-execute the work or as the case may be at the risk and cost of the Contractor.
108) ACTION WHEN WHOLE OF SECURITY DEPOSIT IS
FOREFITTED:
108.1 In any case in which under any clause (s) of this Contract the Contractor will have rendered himself liable for compensation amounting to the whole of his security deposit (whether paid in one sum or deducted by installments or bank guarantee). The Company or Engineer In-charge shall have power to adopt any of the following courses, as best suited to the interest of the Company: -
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(a) To rescind the Contract (for which rescission notice in writing to the Contractor with the secretary of the Company or the Engineer In-charge shall be conclusive evidence.) is absolutely at disposal of the Company. In case of rescission the Contractor shall not be entitled to recover or to be paid any sum for any work actually performed, unless and until the Engineer In-charge certifies in writing the performance of such work and the value payable in respect thereof and he shall be entitled to receive the value so certified only.
(b) The Company may employ labour and supply material to carry out the work or any part of the work debiting the Contractor with the cost of the labour, the price of the material and overheads. A certificate of the Company or Engineer In-charge as to the value of the work done shall be final and binding upon the Contractor.
(c) To measure up the work of the Contractor and to take such part thereof as is unexecuted and give it to another agency for completion. In that case any expense which may incurred in excess of the sum, which would be payable under the Contract, if the whole work would have been executed by him, ( the certificate in writing of the Engineer In-charge shall be final and binding ) shall be borne by the Contractor.
In the event of the above course being adopted by the Company or the Engineer In-charge the Contractor shall have no claim for compensation for any loss sustained by him by reasons of having purchased or procured any material, or entered into any engagements, or made any advance with a view to the Contract.
108.2 The Contractor remains liable to pay compensation if action is not
taken under clause 108.1 in any case in which any of the powers conferred on or vested in the Company or the Engineer In-charge by clause 108.1 hereof shall have become exercisable and the same shall have not been exercised thereof, shall not constitute any waiver of the conditions thereof and such power shall be exercisable in the event of any further case of the fault by the Contractor for which by any clause or clauses hereof is declared liable to pay compensation amount of the whole of security deposit for the past and future compensation payable to the Company under the provisions of the Contract shall remain unaffected.
109) RIGHT OF WAY:
The right way for the execution of the work will be provided by the Company. Nothing herein contained, however, and nothing marked on the drawings shall be interpreted as given to the Contractor for exclusive occupancy of the territory provided. When two or more jobs are being executed at one time on the same or nearby areas in such a manner that operations of one job may be interfered with those of the other, the Engineer In-charge will decide which operation shall be suspended and which shall continue and in what manner. When territory of one work is
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necessary for convenient means of access for the execution of other work such privilege may be granted by the Engineer In-charge for the other work to the extent and in the manner and as the time permitted. The decision as to the method or time of conducting the work or the use of territory shall not be made the basis of any claim for delay in charges or damages.
110) USE OF COMPLETED PORTION:
Whenever, in the opinion of the Company the work or part thereof is in a condition suitable for use and the Company requires to use such work, the Company may take possession for use or use the work or any part thereof provided the same does not hinder the work of the Contractor.
The use by the Company of the work or part thereof as contemplated in this clause shall in no case construed as acceptance of the work or any part there of. Such use shall neither relieve the Contractor of any of his responsibilities under the Contract nor act as a waiver by the Company of any of the conditions thereof. However, if in the opinion of the Company the use of the work or part thereof delays the completion of the remainder of the work, the Company may grant such extension of time, as it may consider reasonable. The decision of the Company shall be final. The Contractor shall not be entitled to claim any compensation on account of such use by the Company.
111) ACTS, RULES AND REGULATIONS:
111.1 The Contractor shall keep himself fully informed of and acquainted
with all acts, rules, regulations and ordinances affecting in any manner, those engaged or employed on the work or the material used in the work or in anyway affecting the operations covered by the Contract and of all orders and decrees of bodies or tribunals having any jurisdictions or authority over the same. If any discrepancy or inconsistency is discovered in the Contract or in the drawings or specifications therein referred to, in relation to any such acts, rules, regulations, ordinances, orders and decrees, the Contractor shall forthwith report the same in writing to the Engineer In-charge. He shall at all times himself observe and comply, with all acts, rules, regulations with latest amendments and orders and decrees of competent courts or tribunals having jurisdiction.
111.2 The Contractor shall be bound to give all notices necessary for execution and of all operations covered by the Contract and as may be required by the relevant acts, rules, regulations, ordinances, orders and decrees etc., and to pay all fees, taxes and duties to respective authorities.
111.3 The Contractor shall abide to all laws governing the workmen engaged, directly or through a sub-Contractor and implement the provision of Mines Act, PF act, Gratuity Act, Minimum Wage Act, Payment of Wage Act, Workmen compensation Act, Contract
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Labour (regulation and abolition) Act, the Indian Explosive Act, M.T.W. Act, and rules and regulations framed there under with latest amendments and also provisions of any other law as may be applicable for operations for carrying out the Contract.
111.4 If any amount becomes payable by the Company as a result of any claim or application in terms of the provisions of the relevant act, rules, regulations, ordinances, orders, and decrees, such amount shall be recovered from the Contractor by the Company.
111.5 The Contractor shall maintain and produce the relevant records as per the provisions of the aforesaid acts, rules, regulations and ordinances, on demand from statutory authority or from the authorized officials of the Company and any failure on the part of the Contractor in this regard will be deemed as breach of the Contract. The Contractor shall also file returns to concerned authorities periodically.
111.6 The Contractor shall arrange to provide vocational training to the persons employed by him (and his sub-Contractor) as per the provisions of mines vocational training rules – 1966, in consultation with the Engineer In-charge. The training will be imparted free of cost by the Company at the vocational training center but the Contractor has to make the payments to his employees as per the above mentioned rules.
111.7 Prior to the employment, each worker likely to be engaged by the Contractor should be medically examined. Only the medically fit persons will be allowed to work. The Contractor should ensure that all the workers engaged by him undergo periodical medical examinations. For the medical examinations the necessary facilities will be provided by the Company at the Company’s hospital and the Contractor shall bear all expenditures incurred for the same. The Contractor shall not employ any person who is declared medically unfit during any of the medical examinations.
112) MATERIAL AND WORKMANSHIP:
Unless otherwise specified, all references on the specifications of ISI / BIS: designation or other standards shall refer to the latest edition of the publication on the date of tender enquiry. Where the job specifications stipulate requirements in addition to those contained in the standard codes, additional requirements shall also be satisfied.
113) WIRING FOR ELECTRICAL LIGHT AND POWER: All electrical equipment, wiring, and provisions for the supply of power and lighting at work sites and camps shall conform to the relevant standards laid down in the Indian electricity act and rules framed there under and should be maintained by the authorized electricians / supervisors.
114) WORKMEN’S COMPENSATION/INSURANCE
114.1 The Contractor shall be responsible for and shall pay compensation to the workmen which would be payable for injuries due to the accidents and / or notified and compensable
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decease under the workmen’s compensation act – 1923 hereafter called the said act. If such compensation is paid by the Company as principal employer under sub-section (i) and sub-section (12) of the aforesaid act, such compensation may be recovered by the Company from the security deposit or from any sum which may be due or may become due to the Contractor or any account whatsoever. The Contractor should adequately insure the workers, and the Company shall not permit the Contractor to start the work unless such insurance certificate is produced.
114.2 First Aid facility and provisions as required under Mines Rules – 1955 with latest amendments, shall be kept at the work site by the Contractor.
115) CONTRACT LABOUR (REGULATIONS & ABOLITION)
ACT AND RULES: 115.1 The Contractor shall not start the work and payment will not be
released unless he obtains licenses under the Contract labour (regulation and abolition) act – 1970 and rules framed there under.
115.2 The Contractor shall intimate the number of persons likely to be engaged by him for the performance of the Contract to the Engineer In-charge.
115.3 Persons engaged by the Contractor in connection with the performance of the Contract, shall be employees of the Contractor and if any claim is lodged against the Company in respect of non-payment of wages or remuneration etc. of any description, due from the Contractor to these employees or any failure on the part of the Contractor in discharge of the payments to his employees, such amount will be recovered from the Contractor.
115.4 Information required under provision of Contract Labour (Regulation and Abolitions) Acts and Rules framed there under shall be given personally through administration department and the Engineer In-charge.
116) PUBLIC SAFETY:
The Contractor shall so conduct his operations as not to close or obstruct any portion of any highway, road, watercourse, or other property until permits thereof have been obtained from the respective authorities. If any of the above is required to be kept closed, the Contractor shall at his own cost provide such temporary guards, lights, and others signals as will be acceptable to the authorities having jurisdiction.
117) SAFETY, SANITARY AND MEDICAL REQUIREMENTS: The Contractor shall promptly and fully comply with relevant acts, rules and regulations and other statutory directions and provide sanitary and medical requirements prescribed by law or by the Company / Engineer In-charge for proper work, safety and health of the employees and the local communities. In the case on non-compliance by the Contractor the same may be provided by the Engineer In-charge at the Contractor’s cost.
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118) FIRE PREVENTION:
The Contractor shall take all reasonable precautions to prevent out break of fire of any nature in the place or in the vicinity of his operations. He shall be responsible for all damages due to fire directly or indirectly attributable to his own activities or those of his employees or to the activities of his Sub-Contractor (s) or his / their employees.
119) PROTECTION OF WORK: The Contractor / Sub- Contractor and their employees shall protect the work / excavations/ equipments, existing installations and material belonging to the Company from damage until the issuance of final certificate to the satisfaction of the Engineer In-charge. Should any damage occur due to negligence of the Contractor he shall repair at his own cost to the satisfaction of the Engineer In-charge.
120) PATENTS AND ROYALTIES: The Contractor, if licensed under any Patent covering equipment, machinery, material, or compositions of matter to be used or supplied or methods and process to be practiced or employed in the performance of this Contract, agrees to pay all royalties and license fees, which may be due with respect thereof. If any equipment, machinery, material composition of matter to be used or supplied or methods and processes to be practiced or employed in the performance of this Contract is covered by a patent under which the Contractor is not licensed than the Contractor before supplying or using the equipment, machinery, material, compositions, method or processes shall obtain such licenses and pay such royalty and license fee as may necessary for the performance of this Contract. In the event the Contractor fails to pay such royalty or obtain any such license, any suit for infringement of such patent which is brought against the Contractor or the owner as a result of such failure will be defended by the Contractor at his own cost and the Contractor will pay any damages and costs awarded in such suit. The Contractor shall promptly notify the owner if the Contractor has acquired knowledge of any equipment, machinery, material, processes, and methods to be supplied here under. The Contractor agrees to and does hereby grant to the Owner, together with right to extend the same to any of the subsidiaries of the Owner as irrevocable, royalty free license to use it in any country, any invention made by the Contractor or his employees in as a result of the performance of the work under the Contract.
121) INDEMNITY: 121.1 The Contractor shall at all times, indemnify and keep indemnified
the Company and the Engineer In-charge against any claim and hold them harmless from any and all liabilities for death, bodily
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injury and / or damages resulting from or arising out of any way connected with the operations covered by the Contract. The Contractor shall be responsible for all risks arising in connection with on account of the operations covered under the Contract and he shall make good all losses and damages arising there from. In case of the Company or the Engineer In-charge incurred any cost, expense or loss on account of any claim, demand or cause of action brought against them and arising out of the operation covered by the Contract, the Company shall recover such cost, expense, or loss from the Contractor. The Company shall have the power without being bound to do so, to defend, contest or compromise any such claim, demand or cause of action and any amount that may become payable by the Company and any expense that may be incurred on this behalf shall also be recoverable from the Contractor.
121.2 The Contractor shall at all times indemnify and keep indemnified the Company and the Engineer In-charge and hold them harmless against any claim or demand which may be made arising out of any use of existing patents, or alleged infringement of such patent or of other patent rights committed by the Contractor in carrying out the operations covered by the Contract and against all liabilities in respect thereof, and against all acts, suit proceedings, claim, cost and expenses whatsoever which may be lodged against or incurred and become payable by the Company in respect thereof.
122) DECISION OF DIRECTOR (PRODUCTION & PLANNING) IS
FINAL: Except where otherwise specified in the Contract, the decision of the Director (Production & Planning), MOIL shall be final, conclusive and binding on all parties to the Contract upon all questions relating to the meaning of the specifications, designs, drawings, and instructions, mentioned before herein and as to the quality of the workmanship or material used on the work, as to any other question, claim, right, matter or thing whatsoever arising out of or in relation to the Contract or any conditions concerning the work, or the execution or failures to execute the same, whether arising during the progress of work or after the completion or abandonment thereof.
123) CONSULTANTS: A firm which has been engaged by the Company to provide goods or work for the project and any of its affiliates will be disqualified from providing consultancy services for the same project. Conversely, a firm hired to provide consulting services for the preparation or implementation of a project and any of its affiliates, will be disqualified from subsequently providing goods or works or services related to the initial assignment of the same project.
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The Consultants or any of their affiliates will not be hired for any assignment, which by its nature, may be in conflict with another assignment of the consultants.
124) SUB-VENDOR: The Contract agreement will specify major items of supply or services for which the Contractor proposes to engage sub-vender. The Contractor may from time to time propose any addition or deletion from such list and will submit the proposal in this regard to the Engineer In-charge. Such approval of the Engineer In-charge will not relieve the Contractor from any of his obligations, duties and responsibilities under the Contract.
125) MODIFICATIONS: The Contract constitutes the entire agreement of the parties hereto. No modification(s) of the Contract shall be binding upon either of the parties to the Contract unless the same is (are) in writing duly signed by both, the Owner and the Contractor.
126) SUM PAYABLE BY WAY OF COMPENSATION FOR THE LOSSES: Sum payable to the contractor by the company by way of
compensation for the losses due to unforeseen circumstances to be considered as reasonable compensation without reference to actual loss. All sum payable by way of compensation under any of the conditions shall be considered as reasonable compensation without reference to actual loss or damage, which shall have been sustained by the contractor. The contractor should made such claims within 30 days of the occurrences.
127) CONFLICT OF INTEREST MOIL requires that the Bidder should provide professional objective & quality work and at all times hold the MOIL’S interests paramount, strictly avoid conflicts with other assignments/jobs or their own corporate interests and act without any consideration for future work.
128) ADHAR NUMBER The tenderer during the execution of the work, shall mandatorily
observe that he will give preference to those employees who either have Adhar Number or have applied for Adhar card or have agreed to apply for Adhar card, while employing the labours / employees for the awarded / allotted scope of work against this NIT, so as to establish their genuineness and to enable payments directly through Adhar Payment Bridge.
In the compliance of the above clause, the tenderer shall give an undertaking alongwith the NIT, in the prescribed format as per Annexure-IV, duly signed by him alongwith the seal. Non-submission of the undertaking may result in rejection of the offer of the bidder.
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129) CURRENCY OF TENDER
The tenderer is to quote in INR only for all the items and Payment will be made in INR only.
130) The company reserves the right to opt for reverse auction also. If
company resorts to reverse auction the bidders shall be suitably educated by agency authorized by MOIL.
131) INTEGRITY PACT: In compliance to guidelines of the Central Vigilance Commission, for contract Works exceeding Rs. 1.0 (One) crore, an Integrity pact shall be signed between the Contractor and MOIL. The format of the Integrity pact is as under:
INTEGRITY PACT
On this __________________ day of _____________2014, at Nagpur, in presence of following two witnesses, this Integrity Pact is being executed between:
MOIL LIMITED hereinafter referred to as “ The Principal / MOIL” and ______________________ hereinafter referred to as “The Bidder/Contractor” (which expression shall include all its partners/directors, agent, representative, servants, sub contractors, (whatever permitted/permissible) & successor in interest etc. including all person claiming through it) Whereas, it has been directed by the Ministry of Steel, New Delhi and Central Vigilance Commission, New Delhi that Government of India undertakings shall execute Integrity Pact with the Contracting Parties/bidders in all the forthcoming Contracts/Tender Processes above prescribed/specified value of Rs. 1.0 Crore, it is necessary to execute Integrity Pact between such parties. Pursuant thereto, the present Integrity Pact is being executed. The terms and conditions of the Integrity Pact are as under:
Commitment of MOIL
Section – I Being the Principal, MOIL commits itself steps take all necessary steps to prevent corruption & unethical practices and bring transparency in all the processes through the following commitments:-
1. No official of the Principal (MOIL), personally or through family with accept or demand any gratification, for which he/she is not entitled from any of the counter/contracting parties.
2. The Principal (MOIL) during the tender process, will treat all the bidders/tenderer equally and provide level playing fields to all.
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3. The Principal (MOIL) commits to provide to all bidders the same information.
4. The Principal (MOIL) will not make available any confidential information to any of the bidder which will give him an edge over the others.
5. The Principal (MOIL) will make public the details of contract awarded.
6. The Principal (MOIL) will exclude any of the officials who is found prejudiced or have conflict of interest in dealing with the bidders.
7. The Principal (MOIL) will take appropriate disciplinary action, as per the prescribed Rules, against its officials if found guilty of breach of commitment. Commitment of Bidders.
Commitment of Bidders
Section – II The Bidder/Contractor commits himself to take all necessary measures not to involve in any type of corrupt practice during the Tender Process as well as Execution of the Contract including the following :-
A) The Bidder/Contractor will not offer or promise to offer to any of the MOIL’s employee the gratification/benefit for which he/she is not legally entitled to get undue favour/advantage or information related to Tender Process or during Execution of the Contract.
B) The Bidder/Contractor will not enter into Agreement with other Contenders/Contractors to derail/disturb fair Tender Process like price fixing or other unethical understanding like Cartel Formation.
C) The Bidder/Contractor will not pass on to others the Confidential Information provided by MOIL as a part of Tender Documents/Contracts.
D) The Bidder/Contractor will not disclose about all the payments made to the Agents/intermediaries, wherever such arrangement is permissible, in connection with the award of Contract/Tender Process.
E) The Bidder/Contractor will immediately inform MOIL, if asked to pay any illegal gratification or bribe, in violation of this Integrity Pact, by any of MOIL’s employee or comes to know any illegal payment made to any of the employee. The Bidder/Contractor will not do any Act, by way of commission or omission which may defeat the spirit behind the present Integrity Pact.
Violation and Penalties Section – III
The Bidder/Contractor, if found to violate the clauses of the Integrity Pact, will be liable to the following penalties:-
A) MOIL will be entitled to disqualify the Bidder/Contractor from the tender process.
B) If after the award of contract, the bidder is found guilty of breach of the Integrity Pact, the MOIL will be entitled to terminate the contract.
C) The MOIL will have right to disqualify the default Bidder/Contractor for participation in future contracts of the
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Principal (MOIL) for a certain period or black list it permanently depending upon seriousness of offence.
D) The MOIL, if the contract is terminated due to violation of the Integrity Pact on part of Bidder/Contractor, will be entitled for material damages as decided by the MOIL Management and will be binding to all. The Principal (MOIL) will also have right to forfeit the Security deposit.
E) The CMD of the Principal (MOIL) will be the final authority in respect of the aforesaid clauses of Violation and Penalties. The decision taken by CMD of the Principal (MOIL) shall be final and acceptable and would not be amendable to any challenge.
Independent Monitor
Section - IV A) CMD, of the Principal (MOIL) may/will appoint Independent
Monitor who are suitable qualified and experienced and are of impeccable integrity to oversee the implementation of the Integrity Pact in cases wherever he feels necessity to do so. The decision taken in this behalf by CMD, MOIL shall be final and conclusive and will be agreeable to both the parties. Such decision, about the appointment of Independent Monitor shall not be amendable to challenge on any ground whatsoever. The Independent Monitors will be non-salaried having voluntary status and will have benefits of Independent Directors.
B) The Independent Monitors will not have administrative or enforcement power and submit his non-binding suggestions or recommendations to the management of MOIL when he observes violation or deviation of any of the conditions of the Integrity Pact.
General Conditions Section – V
A) This Agreement is subject to Indian Laws. Place of execution & performance of this Integrity Pact shall be Nagpur. Any dispute arising out of the Integrity Pact shall be subject to exclusive jurisdiction of the Courts at Nagpur only.
B) The Bidder/Contractor will undertaking from all subcontractors about the commitment to implement the Integrity Pact in letter & spirit and submit to MOIL the said undertakings before sub-contracting the work wherever permitted.
C) The Bidders/Contractors, who do not sign the Integrity Pact, will not be entitled to participate in the Tender Process or continue with the contract.
D) The Agreement will commence into force when MOIL & the Bidder/Contractor sign it and it will come to end twelve months after the last payment.
E) If the Bidder/Contractor is a Partnership Firm or Association of Persons, the Agreement must be signed by all Partners or should be signed by his/their Authorised Representative.
F) MOIL will periodically review the effectiveness of the Integrity Pact by conducting 360 degree review with concerned executives & Bidder/Contractor.
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G) Should one or some of the Provisions of this Integrity Pact turn out to be invalid the reminder clauses of this Agreement shall remain valid.
--------------------------------- ---------------------------------- On behalf of the Principal/MOIL On behalf of Bidder/Contractor Place : Place : Date: Date : Witness No.1 _________________ Witness No. 2 ______________ Designation/Occupation__________ Designation/Occupation ______ Address : Address :
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ANNEXURE – I GENERAL INFORMATION ABOUT THE TENDERER: 1) Name of the applicant, his nationality : and full address. 2) Whether the Firm is a private or Public : undertakings or Hindu undivided Family, Individual or a registered Partnership Firm. (Attested copies of Deeds or Articles of Association / Partnership Deed to be enclosed).
3) Telephone No. & email id : (Office, Residence, Mobile)
4) Name of the person holding the Power : of Attorney and his Nationality with him / her liabilities (attested copy of the Power of Attorney to be enclosed) 5) a) Name of Partner, their present : nationality with their liabilities (Attested copy of the Partnership Deed to be enclosed). b) Name & address of he Directors : of the Firm. 6) Name of the Bankers and their Full : Address / addresses. (NOTE: The Banker’s report in original, preferably in sealed cover giving his/their financial capacity to handle works of the required magnitude should be enclosed along with the tender).
7) Present place of business : 8) Present type of business and the value : of similar jobs carried out by them in the last three years (Please give on a separate sheet details of the work, the value of the work. Details be supported with copies of work orders etc.) 9) Licence of registration with the Regional : Labour Commissioner. N.B. a) The tenderer should obtain a valid licence within 15 days of
the award of the work.
b) In case of failure of the contractor to maintain a valid licence during the period of operation of this contract he will render himself liable for immediate termination of the
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contract without any compensation, apart from being called upon to bear the burden of penalties, if any, that may be imposed by the concerned labour authorities.
10) Whether the tenderer has registered himself :
in any other Public Undertakings for similar Work ? If so, photocopy of such registration may be furnished.
11) Whether the tenderer has quoted for or been:
awarded any contract of similar nature with any other Company / Undertaking etc. during a part or whole of the period covered by this contract? If so, please furnish details.
12) Whether the tenderer or any of his Partner : is a dismissed / retired Government servant / employee of MOIL or any other Public Sector Undertakings? If yes, please give details. 13) Has the tenderer or any of his Partner or : Shareholders been blacklisted or removed from the approved list of contractors, or demoted to lower class or orders passed banning / suspending business etc. by any Govt. Department /PSU/ Private Cos. Etc. in the past ? If yes, please give details. 14) Has the tenderer submitted Earnest Money: deposit along with the tender Please indicate the following : i) Amount of Earnest Money Deposit : ii) Draft/ BG No. date and name of the bank : 15) Whether Income Tax return : Yes / No Acknowledgement for last three years attached. 16) Whether Balance sheet and P&L account : Yes / No of last five years attached. 17) Whether solvency certificate of appropriate : Yes / No amount from the Banker attached. 18) Whether Partnership deed in case of more :Yes/No/Not applicable than one owner is attached.
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NOTE :- i) The Company’s decision, as regards determining the
capability and capacity of the tenderer, to satisfactorily handle the work shall be final.
ii) Separate statement may be used wherever necessary. iii) Photocopies of documents should be furnished wherever
necessary.
Signature of the Contractor (or his authorised representative)
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ANNEXURE – II
(to be submitted with Part- I-Techno commercial Part)
DETAILS OF PREVIOUS EXPERIENCE Sr. No
Mine / Organisation
Quantum of Work
Value of work (Rs.)
Duration Of work
Whether completed or in progress
Delay, if any from schedule completion date
Penalty / Bonus if any
Brief about the nature of work
Remarks
From To Authorised signatory of the Contractor Full Address
Dated:
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DECLARATION
I) I / We certify that I / We did not retire as an employee (s)
MOIL or any Public Sector Undertaking during the last two
years. I/We also certify that I/We have neither such a person
under my / our employment nor shall I / We employ any such
person within two years of his retirement from MOIL or any
other Public Sector Undertakings except with the prior
permission of MOIL.
II) I / We Certify that none of the Partner / Directors retired as
an employee of MOIL or any other Public Sector Undertakings
during the last two years. I /We also certify that in case of any
such person is proposed to be inducted by us as Partner /
Directors prior permission of MOIL will be obtained.
III) I / We also certify that we do not have in our employment any
person, dismissed from service, by MOIL or any other Public
Sector Undertakings. In case such a person is proposed to be
employed by me/us in future, prior permission of MOIL would
be obtained.
IV) I/We declare that I or none of our partners are relatives of any
Executive working in MOIL.
V) I have read the above instructions as well as the contents of
part I of the tender and understood the same. In acceptance
thereof, I sign hereunder.
Authorised signatory of the Contractor Full Address
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TECHNICAL SPECIFICATION PART I (C )
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PART I – C ( TECHNICAL SPECIFICATION) 1.0 SCOPE OF WORK : a) MOIL proposes to sink a vertical circular shaft of 4.5 mtrs. finished diameter from 267.6 MRL to 107.6 MRL, 160 mtrs vertical depth with 5 (Five) Insets at 235.5 MRL (-70’L), 205.5 MRL (-170’L), 175.5 MRL (-270’L), 145.5 MRL (-370’L) and 115.5 MRL (-470’L) at Chikla Mine. RCC/PCC lining is to be done at shaft wall and insets. They are to be furnished equipped and made operative for cage operations as per approved design and drawing enclosed. There may be minor changes in the MRL of the surface during the actual execution of the work. The shaft walls have to be concreted with PCC lining of 300 mm (M20) thick throughout the length of the shaft and RCC lining (M20) at shaft collars and at Insets as per the drawing supplied by MOIL (as per list enclosed at Schedule ‘E’) . b) Shaft collar to be excavated and concreted with RCC from 269.2 MRL to 262 MRL (7.20 Mtrs.) as per drawing enclosed by MOIL (DRAWING No. MOIL/ CHK-II/300748) c) Sump and pump room to be excavated at 145.5 MRL (-370’L) and 115.5 MRL (-470’L) having capacity as 700 Cum. And 600 Cum. Respectively near the Vertical shaft as per drawing to be supplied by MOIL. d) An Ore Pass, of the size of 3.0 metre diameter to be sunk from 235.5 MRL (-70’L) to 115.5 MRL (-470’L) having total depth of 120Mtrs. for storing and coursing ore from upper levels to loading point. e) Loading chamber at 115.5 MRL (-470’L) to be excavated and lined with PCC/RCC concrete as per drawing to be supplied by the MOIL, during the course of execution. It should have provision of Chute & Gate for loading Mine Tubs. f) The rates quoted should be inclusive of handling and pumping out seepage water up to 1200 litres per minute, upto surface / Mine drainage system. 1.1 The excavation of the shaft shall be so carried out so as to meet the requirements of 300 mm thickness of lining as per drawing for the finished size of the shaft. 1.2 The Cross cuts, Horizontal development and other developments have to be made at 235.5 MRL (-70’L), 205.5 MRL (-170’L), 175.5 MRL (-270’L), 145.5 MRL (-370’L) and 115.5 MRL (-470’L) as per the drawings to be supplied by MOIL.
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2.0 SHAFT LINING ; Concrete lining is to be provided in the shaft throughout the length of the Vertical Shaft from 262 MRL (below shaft collar) up to 107.6 MRL (a depth of 154.4 mtrs). The shaft shall be in perfect circular cross section throughout the length after providing 500 mm thick RCC lining up to a depth of 6 mtrs from surface i.e. shaft collar portion and 300 mm thick PCC lining for the remaining depth of 154.4 meters all around the circumference of the shaft, except at the insets and at shaft collar (which will be RCC). While concreting shaft walls, pockets for fixing and grouting buntons, sollars, ladderways and others steel structures etc., wherever required are to be left or made as indicated in the Drawing Nos. MOIL/CHK-II/300748 and 102594. 3.0 INSET EXCAVATION : Inset at 235.5, 205.5, 175.5, 145.5 and 115.5 MRL shall be excavated and browed as per the drawing No. MOIL/CHK-II/102594. The Insets are to be extended to a length of 20 mtrs, from the shaft as shown in the drawing during sinking operations. 4.0 WATER GARLAND, INSET CONCRETING & INSTALLATION OF BUNTONS, GUIDE RAILS, PIPES, CABLES ETC.: While concreting the shaft walls, water garlands are to be made 10 8 mtrs above the each Inset floor level and to be rounded, water garland shall be in the form of annular ring and extra excavation to accommodate the concrete and reinforcement for water garland shall be made, wherever required as per the drawings. Provision to discharge water from garland to lower level be made by 75 mm dia. GI/HDPE pipes of suitable length, embedded in the shaft walls, leading water to respective Insets. 4.1 Loading Chamber & Insets’ Concreting: Reinforced cement concrete is to be provided at all insets and for loading chambers at 115.5 MRL. While concreting, pockets for fixing and grouting buntons and other steel structures such as for Keps, sollars, ladder platforms etc., wherever required, are to be left or made as per drawing. Quantity of concreting shall not include the above left voids as per Drawing No. MOIL/CHK-II/102594 & 102597. 4.2 Installation of Buntons : ISMB 250 x 125 fabricated buntons to support guide rails, pipes etc. are to be lowered and installed at an interval not exceeding 2.95 mtrs as per the drawing No. MOIL/CHK-II/102595 provided by MOIL, and their ends grouted in to the pockets left in the shaft wall/lining. The buntons are to be grouted in the shaft walls after
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properly leveling and aligning. Every bunton shall be so laid that it is truly horizontal. A maximum error of ±2 mm from the required alignment is permissible. The buntons shall be cleaned and painted with primer and two coats of paint before installation. 4.3 Installation of guide Rails : Four pairs of 90 lbs/yard guide rails for cages are to be lowered and Installed starting from surface to the bottom of the shaft. The Installation and fixing the guide rails over the buntons shall be in plumb line as per drawing No. MOIL/CHK-II/102595. 4.4 Wherever two guide rails are to be joined, the ends of both the rails shall be flushed so as to provide the smooth running of guide shoes of cages. 4.5 The maximum permissible gap between rails and joints shall not exceed 2 mm. 4.6 Installation of pipe ranges: Pipe ranges of 200 mm dia. (single line), 150 mm dia. (double line) and 100 mm dia (double line) are to be lowered and installed from surface to bottom of the shaft connecting at each inset as per drawing to be supplied by MOIL. The pipe ranges are to be installed and fixed as per the drawings as also as per the instructions of the Engineer I/C. The pipes & flanges will be provided by the company, as per schedule – B. The pipe supports along with packings and fasteners shall be provided by the Contractor. 4.7 Installation of power, signaling cable and lighting cables: The power cables, signaling cables and lighting cables etc. are to be lowered, laid and fixed over the shaft wall in the manner as shown in the drawing to be supplied by MOIL and as advised by the Engineer I/C. All precautions shall be taken to prevent any damage to the cables and pipes while lowering, laying and fixing them. The cables will be supplied by the company, as per schedule – B and its accessories for fixing them on walls would be made available by the Contractor. 5.0 INSET FURNISHING: Shaft Insets at 235.5 MRL, 205.5 MRL, 175.5 MRL, 145.5 MRL and 115.5 MRL are to be furnished as per the drawing No. MOIL/CHK-II/102594. 5.1 Open space across shaft cross section at Insets other than that left for specific purpose, is to be covered by steel plates, as directed by the Engineer I/C. 5.2 Installation and Fixing of Cages and Keps at Insets :
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Keps are to be installed at Surface, 235.5 MRL, 205.5 MRL, 175.5 MRL, 145.5 MRL and 115.5 MRL level as per the drawing to be supplied by MOIL. The installation and fixing shall be done in such a way that when Cage winding system is put in operation, it does not foul the passage of the cage in “OFF” conditions. Also when put in “ON” condition, it must provide a firm and leveled support to the cage floor. Two Rail tracks of rail gauge 610 mm size are to be installed and fixed for at least one rail length at 235.5 MRL, 205.5 MRL, 175.5 MRL, 145.5 MRL and 115.5 MRL Insets. The tracks shall align with the center of cage track and commence from the cage position at insets.
5.3 Fabrication & Installation of Buntons, Guide rails, Joists for cage Keps and other Steel structures:
All steel work shall be designed, fabricated and erected in accordance with the excavation and drawings. Wherever required, the design and fabrication should be of a type as approved by DGMS and to ISI specifications with their latest amendments. 5.4 Steel for Buntons, Guide rails and other structures would be made available to the Contractor free of cost from Mine stores of the Mine. The collection and transport of it to the site will be Contractor’s responsibility. 5.5 The Buntons, Keps and other steel structures are to be painted with one coat of primer and two coats of zinc based protective paints, after cleaning and sand blasting. The second coat of protective paint shall be made only after the installation is completed. The paint would be supplied by the Contractor.
5.6 Sump and pump chamber at 145.5 MRL. And 115.5 MRL Level:
Sump and pump chamber are to be excavated as per the drawing to be supplied by MOIL at 145.5 MRL (700 Cum.) and at 115.5 MRL (600 Cum.). The excavation for sump has to be carried out simultaneously during the sinking operation.
5.7 Pit Bottom Buffers: At the shaft bottom, on both the sides, for both cages, the Pit Bottom Buffers, as per D.G.M.S. circulars shall be provided. 5.8 Fabrication and Erection of Permanent Head Gear, corresponding to Drawing Nos. MOIL/CHK-II/000266, 102598,102264, & 102600 as per following: TERMS AND CONDITIONS 1) Joints of head gear shall be riveted /bolted/ welded as mentioned in the drawing. Snap head type of suitable length and a minimum diameter of 24 mm. 2) The rivets shall conform to IS 1928: 1961 with latest amendments. 3) Riveting shall be carried by pneumatic riveting hammer of suitable capacity for which the supply of compressed air shall be within the scope of Contractor.
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4) In exceptional isolated cases where rivets of 24 mm diameter are not possible, an alternative size of the rivets proposed along with design shall be submitted by the Contractor and used only after written confirmation from the Engineer-In-charge is received. 5) In case of bolted joints suitable size HT bolt & nuts to be provided. 6) The fabrication of steel head gear frame complete with back stay, cross members, platform, stair cases, ladders, guide rails, dog catches Kep’s foundation etc. shall correspond to detailed drawings which shall be provided by MOIL to the successful tenderer. 7) The total tonnages on account of steel fabrication, installation and erection shall be around 85 tonnes ± 10%. This excludes the installation of guide rails in the shaft. The probable size of the rails is likely to be 90 lbs/yard. The Contractor shall separately quote for installation of guide rails as well as its accessories, as needed. (The rails shall be supplied by MOIL) 8) All the fabrication steel needed for fabrication shall be supplied by MOIL. All other accessories, tools, tackles, compressed air etc. shall be arranged by the Contractor. The steel needed for reinforcement for concrete shall be within the scope of the Contractor. 9) WELDING: All the welded joints shall be butt type and by best quality electrodes, hydrogen controlled generally as per M 310533 H or equivalent (by taking prior permission) shall be used. The welds shall corresponds to IS;1182-1983, and IS;4943-1983. In case of necessity or as shall be determined by the Engineer-In- charge, the provisions of IS:5334-1981 with respect to magnetic particle flaw testing shall be enforced. 6.0 TECHNICAL SPECIFICATIONS AND SCOPE OF WORK –
WINDING ENGINE: Design, Providing, supply, installation (including design and casting of R.C.C. foundation) commissioning and trial run with DGMS approvals - 250 HP (minimum) Double Drum New permanent Winding Engine reputed make acceptable to MOIL, with all electricals like A.C./D.C. Motor, controls and control panel, AC /DC Electrical Drive etc. along with cost of all inputs like Drum Shaft, Drums, Bearings & Pedestals, Gearbox, Hydraulic System, Hydraulically actuated Caliper/Disc brakes, thruster brake etc., complete with all the safety features needed for men winding, Automatic Contrivance, Limit Switches, Sensors, Proximity switches etc. at Pit Top and every level in underground, Signalling system with KEPS & Doors’ interlocks, incorporating requirements of MMR & DGMS circulars. All the vital components of the Winding Engine shall be tested by Ultra sonic flaw detection methods and Magnetic Particle tests, through a DGMS approved Lab. for safe and defect free use. The Winding Engine shall be supplied with all accessories,
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suitable for use in Indian underground metal Mines, in a ready to use manner. All the statutory approvals from regulatory authorities shall be within the scope of the Contractor. Various details are as below; A. GENERAL : 1 Type of winding : Balanced winding in vertical
shaft, two cages to be attached at the end of two winding ropes.
2 Depth of wind : 160 Mtrs. (For future provision approx. 250 mtrs. depth may be considered)
3 Different operating levels : 1st at – 32m; 2nd at – 62m; 3rd at – 92m; 4th at – 122m; 5th. At – 152m.
4 Up-cast or down-cast shaft : Down-cast (intake)
5 Duty : Men, material and ore winding
6 Conveyance to be used : Single deck, single tub cages
7 Winding speed: i) Maximum Speed : 5.5 m/sec. ii) Hoisting speed for men winding : 3.5 m/sec.
iii) Hoisting speed for ore hoisting : 4.5 m/sec. iv)Speed during hoisting of heavy
material : 1.5 m/sec.
iv)Inspection speed : 0.5 m/sec.
Speed Controller should be so designed that it should be possible to operate at any speed up to 5.5 meters per second.
8 Normal hoisting time from bottom most inset (with hoisting speed of 3.5 m/sec.)
: 50 to 60 sec. (excluding decking time)
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B. ROPE LOADS: 1 Pay load : 2.5 Te (normal duty) 2 Maximum unbalanced load
(payload + wt. of unbalanced rope- 29mm dia. FLC)
: 3.2 Te (approx)
3 Dead load of cage and suspension attachments
: 3.0 Te (approx.),
4 Maximum number of men in the cage
: 16
5 Approximate weight of 16 men
: 1.2 Te.
6 Maximum weight of heavy material to be hoisted occasionally
: 4.0 Te.
7 Maximum suspended load : 6.25 Te (normal duty) 6.75 Te (heavy material)
8 Winding Rope: i) Type : Fully locked coil winding
rope, galvanized ii) Diameter : 29 mm iii) Weight of rope per m. : 4.6 kg. (approx.) iv)Minimum breaking strength
: 697KN (approx.)
v)Suspended portion of rope when the cage is at its lowest point
: 170 mts. (approx.)
C. WINDER : 1 Place of Installation : On the surface (Ground mounted) 2 Type of winder : Double drum, Electrical 250
H.P.(minimum), A.C./D.C. motor driven winder.
3 Type of drum : Un-grooved cylindrical drum. One drum shall be fixed while the other shall be floating with gear clutch hydraulically actuated. Two ropes are to be attached at the outer ends of the drums. Ropes are to be coiled in single layer on un-grooved surface of the drums by considering the shaft depth as 250 mtrs., Drums should be wooden lined. Drum should be split type.
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4 Diameter of the winding drum & Sheave Wheels
: Minimum 3600 mm. (both drums)
5 Drum width between flanges
: Drum width should be sufficient to accommodate the 29 mm locked coil rope for 250 mtrs. shaft depth in single layer and to compile the DGMS guide lines / MMR-1961.
6 Drum Axle : Axle will be designed to transmit maximum torque developed due to most un-favorable condition. Axle will be made of single piece, high strength alloy forged steel. Stresses developed during manufacturing process must be relieved.
7 Whether motor is coupled direct or through reduction gear to the drum
: Coupled through appropriate reduction gear box of approved type suitable for Winder applications (Elecon/Greaves/other reputed make acceptable to MOIL)
8 The winder must be capable of operation in both the forward and the reverse directions for raising and lowering of conveyances in the shaft. Normal winding cycle in either direction will consist of periods of controlled acceleration, constant speed and retardation before finally stopping with the conveyance in the decking position. Controlled maneuvering of the conveyance at the landing and elsewhere in the shaft will be possible.
All the parts of the winder and associated equipment would be of proven design and capable of lifting the maximum unbalanced loads specified. The winder drums would be fitted to a drum axle supported on two heavy duty bearings. The drive would be from a single 250 H.P. A.C./D.C. electrical motor, through a totally enclosed reduction gear box.
9 Attachment of rope
& drum : By clamping inside the drum.
(To the drum and between rope Coils inside the drum or any other advanced version ).
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D. OTHERS COMPONENTS:
1 Gear Box : A single suitable gear box (Elecon/Greaves/other reputed make acceptable to MOIL) with adequate capacity is to be provided. The reduction gear will be made of high accuracy gear having adequate strength to withstand the load & abrasive factor for its long service life. The output shaft of the gear box would be connected to the end of the drum axle through a low speed flexible coupling.
2 Couplings : All couplings should be suitable for transmitting the maximum torque that may be developed. (preferably Fenner/Elecon make). Tyre couplings shall not be used
3 Bearings : Axle of the drum will be fitted with suitable rating, heavy duty bearings. Due allowance should be given for impact and side thrusts.
4 Clutch for the floating drum
: With the aid of a gear type clutch, one drum can be adjusted. The clutch and brakes are to be interlocked in such a way that the floating drum can be engaged and disengaged only if both brakes are applied. The Clutch shall be hydraulically actuated, whose controls shall be interlocked with Winder controls.
5 Brakes : The normally ON type Suspended post brake/Parallel motion brake /Disc caliper brake, on the both sides of the winder drum (one brake on each drum) shall be applied on brake paths /brake discs with hydraulic actuation. In addition to the brakes on drums, a Thruster brake shall be provided on the coupling between motor & gear box, so as to stop the winder in case of power shut down / emergencies.
The braking effort of the brakes shall be so designed as to hold the winder in stationary position even when individual brake is applied in a fully unbalanced condition.
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The hydraulic circuit shall be so designed, as to be integrated through a PLC with the winder operation. It shall have provision for two pumps (one standby), complete with solenoid valves, operable on 24 Volts D.C., Variable valves (for quick oil release on return circuit, while applying brakes), inert gas filled Accumulator. The maximum working pressure of the system shall not exceed 30 Kg/cm2.The brake control valve should have progressive brake control function from full on to full off position in progression.
The provision for individual brake testing should be made.
In addition to these brakes, the system shall provide for regenerative braking of the motor, adequate to hold the rated load in maximum unbalanced condition.
6 Sheave Wheels : 3 Nos. Three nos. Sheave Wheels, (one standby and two installed at the Head gear) 3600 mm in diameter, conforming to IS 9239/1999, with groove for a rope, suited to a 29mm diameter Locked Coil wire rope.
7 Automatic Contrivances
: The various automatic contrivances, as provided for, in the M.M.R. for winding engine shall be provided.
In addition to providing for all the requirements of automatic contrivance of DGMS through a PLC based Digital system; electromechanical/suitable aids like limit switches (for over wind and over hoist) to shut off the winder, in case of over wind/over hoist; depth indicators to indicate the position of Cages in the shaft; Slow Banking system etc. shall be within the scope of the Contractor.
8 Shaft pit Bottom Buffer
: Approved type of Pit Bottom Buffer shall be provided below the lowest landing level to protect hard landing, as provided for, by DGMS in their circulars.
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9 Operator’s Cabin : An operator’s cabin of the size of 3 metres(L) X 3 metres (W) and a height of 2.5 metres approx., side and top sheets of aluminum frame & panel boards, with door, steel floor, complete with a 1 Tonne window type air conditioner, 14” wall mounted fan, adjustable operator’s chair, light fittings etc. shall be provided by the Contractor.
10 Other Items : Any other item not indicated here but necessary for compliance of the provisions of M.M.R. and latest DGMS circulars shall be within the scope of the Contractor.
The Contractor shall be required to seek and submit DGMS approval for man and material winding of the winder supplied.
SPEED INDICATOR cum RECORDER with provision for print outs shall be provided. It shall have a facility for individual brake testing, indicator for clutch in/out, Shaft doors’ indicators and interlocking and testing of Bye pass system etc.
E. DESIGN CRITARIA FOR HYDRAULIC BRAKE OF WINDER FOR
CHIKLA MINE VERTICAL SHAFT 1. Design of hydraulic system shall be robust enough for three shifts
continuous working. 2. Working pressure of the hydraulic system shall be app. 30 Kg/cm² and testing pressure shall be 140 Kg/cm². 3. Hydraulic cylinders for brake should be strong enough to withstand shocks during operation. Piston rod diameter of cylinder shall be a minimum 56 mm. Cylinders’ mountings shall be top and bottom flange type. Cylinder should have cushion at bottom (blind) end clutch cylinder shall be double acting type with flange mounting at both end. 4. Hydraulic power pack should comprise of followings:- a. Hydraulic pump with electric motor, starter panel, and base
frame etc. complete- 2 sets.
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b. Unloader relief valve suitable for 0 to 140 Kg/cm². Quantity -1 no.
c. Control valve for operation of cylinders should be electro-hydraulic operated spool type. 4 nos. valves shall be single solenoid spring loaded type, 2 nos. shall be double solenoid without spring detented type, 1 no. shall be double solenoid spring loaded three position type (for clutch cylinder) and 1 no. shall be manual operated with progressive control which shall be fitted on operator control desk. Electrical solenoid valves shall be operated on 24V DC. Quantity – minimum 8 nos / as needed
d. Hydraulic oil tank complete with oil level indicator, breather and oil level sensor with one NO and one NC contact. Size and shape of the tank shall be so designed as to be adequate to cool the hydraulic oil during continuous operation. Initial filling of hydraulic oil shall be done by contractor.
e. Accessories i.e. pressure gauge, suction strainer, suction oil filter with gauge, temperature sensor with gauge, pressure sensor with one NO and one NC contact, check valves, stop valves, seamless pipe and hydraulic hoses and other items, as may be needed for complete & satisfactory operation of the system shall be within the scope of supply of the Contractor.
5. Recommended supplier for pump and valves are Yuken /
Vickers or other reputed make. 6. One set spare seal kits for cylinders, valves and pumps and
two spare oil filter elements shall be supplied with system. 7. Installation of power pack and laying of pipe line and cable
shall be done as per standard practice and decision of the Engineer in charge shall be final.
8. Lifting and lowering time of brake cylinder shall not be more
than 3 seconds and 2 seconds respectively, for satisfactory operation of the brakes.
9. Accumulator shall be gas filled, bladder type and shall be
having a minimum capacity of 30 litrs. Or as suitable for the system Test pressure shall be 140 Kg/cm².
10. Sizes of seamless pipes shall be a minimum of 25mm and
40mm for main pressure and return line respectively, for smooth operation of the system. In case of rubber pipes suitable pressure rating pipe (R-2) with appropriate end fitting shall be used.
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F. GENERAL DRAWINGS Following drawings shall be within the scope of the supply of
the bidder. Approval of these drawing will be required from MOIL.
a) General arrangement drawings of winder b) Line diagram of winding engine illustrating its major
parts and safety linkages c) Detailed fabrication/manufacturing and Assembly
drawings including fast moving items & electricals etc. d) Line diagrams of the power, control & safety
mechanisms . e) Test certificates & cabling laying diagram. f) Wiring schedule of control panels. g) Preparation of foundation, reinforcement details and
design calculation of Winding Engine foundation. G. OTHER TERMS & CONDITIONS 1. Whole the winding engine system including electrical will be
under warranty for one year after the date of successful commissioning / Final acceptance.
2. The rates offered by the bidder shall be inclusive of Annual Maintenance Contract (AMC) of whole the winding engine system including electrical for one year after expiry of warrantee period.
3. In case of imported units / components, approval / exemption from DGMS will be taken by the bidder.
4. The winding engine system shall be from manufacturers such as ABB, Siemens, Siemag, Davy Markham, INCO, NKMZ, KOPEX,
5. However other reputed make winding engine system may be considered from manufacturers who satisfies following conditions.
a. The tenderer shall ensure that the offered winding
engine system manufacturer shall have successfully supplied at least 2 nos. of Winding engine system of equal or higher capacity (in terms of HP). The tenderer shall submit copies of relevant purchase orders and their performance reports (duly notarized by PUBLIC NOTARY) from end user of offered make winding engine system for a minimum period of two consecutive years from the date of successful commissioning. The winding engine system should have completed a minimum period
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of 2 years of successful operation as on last date of submission of tender.
b. The Bidder are required to submit relevant information regarding name of customers, contact details, supply order reference, date of commissioning, period of operation and present status for offered make winding engine system of equal or higher capacity.
7.0 ELECTRICALS :
7.a) Winder drive motor : The winding drums should be driven by a suitably rated AC/DC motor. The motor shall have the winding connections brought out to a terminal chamber for testing purposes. Motor coupling and adaptor base shall be provided with the motor. The motor shall have adequate starting torque and shall be suitable for frequent starting and stopping with maximum loads of S3 / S4 duty as per design by tenderer. . The motor shall meet the duty requirement of the winding cycles. Suitable ventilation system shall be provided for cooling of the motor. The motor shall be insulated to class F insulation, or better, allowing a temperature rise limited to “B” class of insulation.
Motor bearing lubrication grease nipples shall be readily accessible without removing any guards and shall be suitable for use with standard grease guns with push on fittings. The motor shall be fitted with suitable cable sockets located for easy insertion of the cable plug into the socket. The cable entry shall be suitable for the use with available supply voltage.
SELECTION OF WINDER MOTOR Selection of winder motor is very critical and numerous factors taken into consideration for selection of motor winder. The general criterion adopted for the selection of motor will lead to wrong selection of motor. We are giving below various parameters of winder, based on which AC / DC motor should be selected. Since the motor will be utilized for lifting heavy load, a AC / DC motor suitable for four quadrant operation is necessary. The frame size of the motor, diameter of motor shaft, cooling, over load capability etc. will depend upon the following factors.
1.Cage - Weight/Cage
2.Rope - weight / Meter
3.Total rope length of one side of winder
4.Drum Diameter
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5.Winders drum weight including weight of shaft
6.Gear Box ratio
7.Final speed of the drum in RPM
8.Speed of the rope in meters per second 9.Maximum unbalanced load 10.Gear Box shaft output diameter 11.Maximum unbalanced load under declutch condition 12.Rope diameter The AC/ DC motor should be provided with forced cooling
with filter & silencer. A typical dimension of the motor is given below. The motor shall conform to latest IS specification as well IEC standards for winder application only.
TYPICAL DETAILS OF A AC / DC, 250 HP ( To be designed by tenderer as per requirement but not less than 250 HP) , 1000
RPM MOTOR SUITABLE FOR FOUR QUADRANT DRIVE S.N. DESCRIPTION DETAILS 1 CAPACITY IN HP / KW 250 / 1875 (To be designed
by tenderer as per requirement but not less than 250 HP)
2 ARMATURE VOLTAGE 440 ( For DC motor) 3 RPM 1000 4 FRAME SIZE TO BE QUOTED BY
MANUFACTURER 5 QUANTITY 1 6 TYPE OF YOKE LAMINATED ( For DC
motor) 7 FIELD SEPARATELY EXCITED(
For DC motor) 8 TYPE OF FIELD WINDING SHUNT( For DC motor) 9 CONFORMING TO BS : 5000 PART 99-1973 10 CONFORMING TO IS : 4722 11 MOUNTING B3- HORIZONTAL FOOT
MOUNTING 12 ENCLOSURE SPFC IP23 IC 06 13 TERMINAL BLOCK POSITION TO BE QUOTED BY
MANUFACTURER 14 COOLING FAN POSITION ON TOP OF NCE( For DC
motor) 15 EXCITATION VOLTAGE 220( For DC motor) 16 CLASS OF INSULATION F, temperature rise limited
to class “B” insulation 17 AMBIENT TEMPERATURE 50 DEG. CENT.( Derating
factor may be considered while selecting AC /DC motor
18 TEMPERATURE RISE AS PER CLASS B
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INSULATION 19 SPEED RANGE AT CONSTANT
TORQUE TO BE QUOTED BY MANUFACTURER
20 SPEED RANGE AT CONSTANT HP
TO BE QUOTED BY MANUFACTURER
21 DUTY S3/ S4 as per design 22 SHAFT EXTENSION SINGLE CYLNDERICAL 23 TACHO MOUNTING AS PER TACHO DETAILS
ENCLOSED 24 OVER LOAD CAPABILITY 160% OF FULL LOAD
CURRENT FOR 15 SECONDS
25 DIMENSION ‘A’ OF MOTOR IN mm
TO BE QUOTED BY MANUFACTURER
26 DIMENSION ‘B’ OF MOTOR IN mm
TO BE QUOTED BY MANUFACTURER
27 “CE” EXTENSION OF SHAFT IN mm
TO BE QUOTED BY MANUFACTURER
28 “NCE” EXTENSION OF SHAFT IN mm
TO BE QUOTED BY MANUFACTURER
29 “D” DIAMETER OF SHAFT IN mm
TO BE QUOTED BY MANUFACTURER
30 “H” HEIGHT OF SHAFT CENTRE FROM BASE IN mm
TO BE QUOTED BY MANUFACTURER
31 DIGITAL TACHO TO BE PROCURED BY MOTOR MANFACTURER AS PER SPECIFICATION AND MOUNT IT ON NCE OF MOTOR
MECHANICAL DESIGN PARAMETRS TO ASSIST PROPER SELECTION OF MOTOR TORQUE, RESERVE POWER & SHAFT
DIAMETER, DUTY CYCLE ETC. The components of the motor shall be designed to safely
operate under full torque by adopting the following criteria. There shall be a 1.3 to 1 reserve factor on fatigue failure under the specified maximum rope pull taking stress rises, material, surface finish and dynamic effect into consideration.
There shall be 1.5 to 1 margin on yield when the rope applies a load unto the breaking load at any position in the wind.
The gearing shall be designed to withstand without detriment all dynamic effects, due to the operation of the winder including the reverse torque transmitted to retard the motor during an emergency trip (NCB spec:383). Machined helical and
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straight spur gears shall be to BS 436 and bevel gears to B 545 and shall be suitable for a rating of 24 hours/day operation and a continuous full load life of 120,000 hours.
The gears for winders should be calculated on the normal basis for wear, but the speed coefficient used in calculating the load capacity for strength must be 0.85 times the normal value.
The drums for winders are normally of fabricated construction and of the parallel type. The drums shall be provided with wooden (SAL) lagging of proper thickness. A tangential rope entry shall be provided with rope clamps suitable for carrying the maximum rope load (five times the maximum static rope load) neglecting friction between the rope and the drum. The brake paths are produced from cast iron and fitted to each side of the drum and of sufficient thermal capacity to absorb energy from the maximum lowering duty with a temperature rise not greater than 900 C, assuming normal cooling.
Twin brake paths shall be provided one on either side of the drum. Each brake path shall have one brake, with independent adjustment of each brake and with no mechanical connection between one brake and the other.
The brake shall be capable of producing a restraining torque so as to hold 3 times the static torque developed during maximum out of balance condition.
The drum surge shaft shall be forged and normalized and tempered before being rough machined all over, and then stress relieved before final machining. The shaft shall be swelled at the key seats with a gradual change of sections at all changes in diameter. Keys shall be of the double tangential type and fitted with a locking device.
Installation of the winder will be on to a prepared concrete or steel beam type foundation. The foundation shall be got designed to safety accept a rope pull of 1.25 times the breaking load of the rope, from a qualified design engineer of repute with similar previous experience.
7.b) DIGITAL TACHO GENERATOR TO BE PROVIDED ON MOTOR
A typical specification of Tachometer is given below as reference. However the specification should match with design parameters of selected motor for mounting on shaft, as well as for generating pulses.
Type : Digital type Tacho generator
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Make : HUMBER; ELECTROMASCHINENAG, BERLIN Hmax = 1000 min-1 Enclosure : IP 55
Since the motor will be designed for winder duty, special precaution is needed in selecting the Tachometer according to the shaft diameter of motor. The basic purpose of the Tachometer will be to generate digital signal for sensing speed for automation & control.
7.c) PLC AND RELAY PANEL PLC with relay panel shall be provided for digital I/P and digital O/P, analogue input / analogue output PLCs, CPU along with power supply unit suitable DIN channel. At least one power supply unit of suitable capacity shall be spare. The relays provided shall be of proper rating depending on load. As far as possible all the out put of PLC shall be provided with relays. All the signals coming to relay panel shall be through profibus / modbus / Ethernet / optical fiber cable only. In case if the sensors are connected using control cable the same shall be terminated at a convenient location in a junction box and the signal shall be communicated using distributed I/Os only. There are certain signals from loading point which will be required to communicate with relay panel. In these cases proper design shall be made so that slave PLC is not required and communication can be carried out using distributed I/O. Complete licensed software with run time shall be provided along with generation of various alarms, graphs as per requirement, reports etc. in excel format to be stored for at least 40 days. Relay panel shall be properly protected. While designing, provision for at least 30% extra digital I/P and digital O/P shall be made. Care must be taken to provide analogue input and digital out put PLCs for operation of winder.
7.d) SCADA PACKAGE
The SCADA package shall be provided for operation of winder. A monitor kept in front of operator shall display continuously the position of cage with various faults e.g. over wind, over hoist, gate close, gate open, Keps In , Keps Out, speed of winder, levels, date real time. The SCADA shall display alarms and loggings of winder. The SCADA shall be receiving various faults of drive and the same shall be displayed in monitor as alarms.
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The instantaneous AC motor voltage / DC armature voltage, AC motor current / DC armature current, Supply voltage and current shall be displayed and recorded. It shall record the total operating time each shift with number of cages hauled. The daily consolidated report shall be stored for 40 days for analysis. The SCADA package shall provide Speed versus time, AC motor current / DC motor armature current versus time, AC line voltage / armature voltage versus time, armature voltage versus armature current graphs and shall store the same for further analysis. The energy consumed daily, shall be logged and record shall be made available for monthly unit consumption against operating hours. All necessary required software with license shall be handed over to company after commissioning of winder, which will be property of company.
7.e) EARTHING SYSTEM: Independent earth pits shall be constructed as per IS:3043 (Latest) for earthing of transformer neutrals. The earthing provided shall be restricted earthed neutral system. The restricted earthed neutral system shall be envisaged as per the recommendations of DGMS. 7.f) Installation and commissioning:
Installation and commissioning of the winder drive and associate accessories shall be done by qualified and certified commissioning engineers for safety and reliability of system.
7.g) Life-cycle management: Life-cycle management includes:
• Providing spare parts and expertise throughout the life cycle • Providing efficient product support and maintenance for
improved reliability • Adding functionality to the initial product • Providing a smooth transition to a new technology at the end
of the life cycle 7.h) Training:
A proper training program shall be offered from basics to programs tailored to the customer’s specific requirement. Experienced specialists shall impart practical training to mine winder personnel at site.
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7.i) Mechanical Construction
(i) Bus Bars The separate compartment for standard flat AC or DC copper bus bars along with safety feature for high powers. The bus bars of DRIVES cabinet shall be copper bus bars with high currents carrying capability .
(ii) Protection Classes DRIVES cabinet shall comply with several International Protection (IP) standards. In addition, it includes an electromagnetic compatibility design for countries in European Union area (EU Directives). 7.j) EMC Design The Cabinet shall be equipped with cable sleeves to ground the cable shields. Gaskets are provided for doors and control cables to comply with European Union EMC directives. 7.k) IP21 As a standard, DRIVES cabinet is protected against vertical water dropping. With doors open, the circuits are protected against direct contact. 7.l) Cables As a standard, the cables enter and exit through the cabinet bottom.
7.m) Programming and Maintenance Tools
The Drive shall be provided with an advanced, easy-to-use PC software tool for the start-up and maintenance of drive. Its host of features and clear, graphical presentation of the operation shall provide information necessary for troubleshooting, maintenance and service, as well as training.
With the above system the user shall be able to follow the cooperation of several drives simultaneously by collecting the actual values from the drives onto a single screen or printout.
Additionally, the user control unit may reside on one Local Area Network PC, and the server side on another PC closer to the drives, to enable plant-wide monitoring to be easily accomplished with two PCs.
7.n) High Speed Communication The drive monitor shall use a high-speed fibre optic cable network with drive control communication protocol. This will ensure communication between PC and drives very fast.
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7.o) Monitoring motors The control unit provided on panel shall facilitate monitoring several drives simultaneously. The history buffer shall make it possible to record a large amount of data in the PC's memory. The drive's data logger can be accessed with control unit and can be viewed in graphical form. The fault logger inside the drive shall automatically document every fault, warning and event which occurs. The fault history stored in the drive shall be uploaded to computer provided.
7.p) Back-up Drive parameters shall be saved to the PC provided with control unit and shall be easily downloaded back to the drive whenever required. The same goes for the software. DriveWindow allows the entire control board software to be saved and restored later, if needed. This makes it possible to use one control board as a spare part for many different sizes of drives.
7.q) D.C. Drive
DESIGN Converter ( DC drive) unit shall be equipped with a user friendly operator panel to be mounted in the converter door. The panel shall consists of minimum five-digit, seven-segment display, suitable number of LEDs as status indicators and parameterization keys. The Parameterization Unit shall have connector with suitable interface in accordance with the RS232 or RS485 standard. The panel shall provide all the facilities for making adjustments or settings and displaying measured values required to start up the converter. The converter’s user friendly operator’s panel can be mounted either in the converter door or externally, e.g. in the cubicle door. For this purpose, separate connecting cables shall be provided. It should have facility to use a larger length of cable through suitable supply voltage available. The user friendly operator’s panel should serve as an economic alternative to control cubicle measuring instruments displaying physical measured quantities. The user friendly operator’s panel should feature an LCD / LED with minimum 4 x 16 characters for displaying parameter names in plain text in English. It should be capable of storing parameter sets for easy downloading to other devices. The converter should have capability to set parameters through standard PC with appropriate software connected to the serial interface on the basic unit. This PC interface can be used
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during start-up, for maintenance during shutdown and for diagnosis in operation. Further, converter software upgrades can be loaded via this interface for storage in a Flash memory.
MODE OF OPERATION Capable of open-loop and closed-loop drive control and communication functions performed through powerful microprocessors. Drive control functions implemented through software as program modules which can be “wired up” by parameters. The rated DC currents (continuous DC currents), load class I, specified on the rated plate can be exceeded by 180%, the permissible overload being dependent on individual converters. The microprocessor calculates the current I2t value of the power section cyclically to ensure that the thyristors are not damaged in overload operation. Converters should self-adapt to the frequency of the available supply voltage in the range from 45 to 65 HZ. (Armature and Field are independent)
REQUIRED ACCESSORIES ( TO BE QUOTED BY
MANUFACTURER)
PARTICULARS OF DRIVE ACCESSORIES
BRIEF DETAILS OF OFFER
(TO BE QUOTED BY
MANUFACTURER) Technology software for basic converter (“Free function blocks”)
Terminal expansion Module RS232 – RS485 interface FOR converter with connecting cable
User-friendly operator control panel with adaptor for mounting on door, including connecting cable
Local bus adapter for the electronics to install supplementary boards.
Adapter board needed to install boards Pulse encoder evaluation board Terminal expansion board Communications board with interface Any other accessories offered Software offered with manual Application software offered with dry run
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CONVERTER MODEL i) Converter Model: Latest Model of DC Digital Drive (To be quoted by manufacturer) ii) Rated DC Currents and Cooling : Separate Cooling arrangement through air blower iii) Ambient temp.: +Max : 48 0C; Min : 60 C iv) Closed – loop control : Constant field v) Closed – loop control : 4Q digital vi) Converter connection: V: (B6) A (B6) C(4Q) ( To be quoted by manufacturer) vii) Rated supply voltage : F: 440V – 480V ( To be quoted by manufacturer) viii) Thyristor construction and fuse assembly : Disk thyristors with fuse assembly ( To be quoted by manufacturer)
LOAD CYCLES FOR 4Q APPLICATIONS (TO BE QUOTED BY MANUFACTURER)
OFFERED MODEL OF
CONVERTER
Load Cycles
Tu DC I DC II DC III DC IV US rating Tu=450C
Conti- nous
15 min
100%
60 sec
150%
15 min
100%
120 sec
150%
15 min
100%
10 sec
200%
15 min
100%
60 sec
150%
0
C A A A A A A A A A
DOCUMENTATION ON CONVERTER
i) Catalogue for Parameterization procedure ii) Catalogue giving details of Parameter types iii) Provision for Manual setting of armature resistance and
armature inductance iv) Manual setting of field resistance v) Procedure for starting up electronic boards and technical
boards vi) Sequence of operations for starting up Profibus / Modbus /
Ethernet bus boards vii) Sequence of operations for starting other bus boards if
provided
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viii) Procedure for starting up software Link boards ix) Procedure for staring up expansion boards x)Procedure for starting up the pulse encoder board
DRIVE (CONVERTER) SHOULD DISPLAY FOLLOWING
i) Fault messages ii) General information about faults iii) List of fault messages iv) Supply faults v) Interface error vi) External faults vii) Fault messages from motor sensors viii) Drive faults ix) External faults x)Start-up faults xi)External faults xii)Hardware faults xiii)Internal faults xiv)Communication errors with supplementary boards xv)Faults messages from supplementary boards xvi)Alarms
EXAMPLE OF A TYPICAL CONVERTER 3 AC 460 V, 1200 /
1300 A , 4Q DIGITAL CONVERTER ( DC DRIVE) SPECIFICATION
PARTICULARS OF
CONVERTER
CONVERTER MODEL AND NAME OF MANUFACTURER
Rated supply voltage armature 1) V
3 AC 400 (+15% - 20%)
Rated input current armature 2) A
(To be quoted by manufacturer)
Rated supply voltage electronics V Power supply
2 AC 380 (-25%) to 460 (+15%); In=1A oder 1 AC 190 (-25%) to 230 (+15%); In=2A (-35% for 1 min)
(To be quoted by manufacturer) Rated supply voltage fan V
To be quoted by manufacturer
Fan rated current A
To be quoted by manufacturer
Air flow rate in m3/h To be quoted by manufacturer as per requirement of given ambient
temperature Fan noise level dBA
Manufacturer should quote according to international
standards Rated supply voltage field 2AC 400 (+15% / - 20%)
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V Rated frequency Hz (To be quoted by manufacturer) Rated DC voltage V 420
(To be quoted by manufacturer) Rated DC current A 1200 > and < = 1250
Overload capability 6 Max. 180% of rated DC current Rated output kW 500> and < = 525 Power loss at rated DC current W (approx.)
To be quoted by manufacturer
Rated DC voltage field V To be quoted by manufacturer Rated DC current field A To be quoted by manufacturer Operational ambient temperature 0C
0 to 48 0C; Forced-cooled
Storage and transport temperature 0C
To be quoted by manufacturer
Installation altitude above sea level
< 1000 m at rated DC current
PARTICULARS OF
CONVERTER CONVERTER MODEL AND NAME
OF MANUFACTURER
Control stability Δn= not more than 0.006% of the rated motor speed, valid for pulse encoder operation and digital set point. Δn= not more than 0.1% of the rated motor speed, valid for analog tacho or analog set point 5)
Environmental class DIN IEC 721-3-3
3K3
Degree of protection DIN 40050 IEC 144
IP55
Dimensions (H x W x D) in mm
To be quoted by manufacturer
Weight (approx.) in kg To be quoted by manufacturer SUPPLY VOLTAGE & UTILISATION VOLTAGE :
The supply voltage shall be 11 KV, 3 phase, 50 Hz, AC at incoming electricity board and utilization voltage shall be 440V, 3 phase, 50 Hz, AC. MOTOR CIRCUIT:
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The AC power shall be fed into the thyristor converter through suitable power transformer/transformers. The power transformer/transformers shall be compatible with the requirements conforming to IS: 2026 (latest). The output power of the thyristor converter shall be fed into DC motor connected with the thyristor converter. Suitable protection shall be provided in both input and the output side of the thyristor converter. WINDER MOTOR CONTROL: Speed Regulators
The winder motor control unit shall comprise of speed regulator system. The speed of the winder motor shall be controlled through this speed regulator. The speed regulator system shall be capable of regulating the changing torque of the motor by adjusting the armature current and field current of the motor operating the winder. The adjustment of armature current and the field current shall be done as per the requirement of motor torque through armature current controller and field current controller respectively. The control unit shall also sense accurately the commencement of winder operating cycles.
Blocking device
The speed regulator shall be equipped with a suitable blocking device as per the requirement of winder duty cycle. The blocking device shall be operative at the time of braking action of the winder or any fault either electrical or mechanical type during the winder operating cycles.
Electrical Braking The winder braking action shall be through a suitable system as field reversal/dual control/armature reversal by the thyristor converter. The AC power line must be capable of absorbing the power returned to the AC power line during the regenerative braking action.
Sequence Controller The sequence controller shall be capable of reducing the line reactive power during acceleration and retardation period of the winder by separately firing the thyristor bridges.
Thyristor Converter Circuit
The thyristor converter circuit shall specify: - a suitable number of input line phases - the configuration of the power transformer/transformers
feeding the thyristor converter - connections of the thyristor bridges etc.
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General Requirements of Thyristor Converter Thyristor converter shall be capable of withstanding excessive moisture (relative humidity more than 95%) Thyristor converter shall be capable of withstanding excessive dust. Thyristor converter shall be capable of withstanding ambient temperature upto 550 C The thyristor converter shall be capable of operating at the steady AC fundamental line voltage in between 90% and 110% of nominal AC line voltage. The thyristor converter shall be capable of operating at the AC line frequency variation of + 3% and – 5% The thyristor converter shall be capable of withstanding AC line voltage waveforms:
• repetitive peak deviations of the fundamental line voltage from the instantaneous value of the line voltage.
• Dips forming excursion of the instantaneous line voltage shall not prevent thyristor gate operation.
• Drive converter performance for sub-cycle voltage dips for longer durations.
• Non-repetitive over voltages shall not damage any part of the thyristor converter or motor.
Protections Thyristor Converter Protections: The following protection shall be provided:
- converter circuit protection - power transformer protection - over current and instantaneous current protection - surge current protection - transient voltage protection - overload protection - AC under voltage protection - earth fault protection - any other protective device considered necessary
Drive Protections: - over speed protection of the motor - converter over temperature protection - protection required for the motor during regenerative operation - phase loss protection - any other protection considered necessary
Testing The tests for the thyristor converter and DC motor shall be as per relevant (India)n Standard Specification, (India)n Electricity Rules or its equivalent international standard and necessary certificates shall be enclosed by the manufacturer.
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Design (Type) test for thyristor converter i) Dielectric tests ii) Rated Voltage Test iii) Impulse withstand voltage test iv) Any other test considered necessary
Production (Routine) Test The thyristor converter shall be capable to operate over its normal output voltage range at no load
Optional Test
i) Loss measurement ii) Phase control
Diagnostic Panel
Winder motor control panel shall be provided with the following diagnostic or trouble shooting aids:
i) A test panel with built-in meters to monitor critical regulator, power supply and motor power circuits etc. ii) Thyristor cell monitoring lights iii) A memory type faults finder for protective circuits to indicate major faults such as field loss, over current, suppression etc. iv) Light or meter indicator to indicate the presence of gate pulses v) Block diagrams of all basic functions of circuitry, voltages waveforms and other signals that would aid in trouble-shooting vi) Provision for measurement in AC. input and DC. output voltages and currents vii) Regulators shall have provisions for metering for references and outputs viii) Critical test points shall be easily accessible ix) Elementary circuitry drawings that are cross referenced in case of trouble shooting aids shall be provided.
Instruction manual shall include procedures and other pertinent information relating to trouble-shooting. Testing of drive:
The quality standards and requirements shall be fully met and every component of drive shall be subjected to thorough testing in modern test facilities. Routine tests and functional tests shall form an integral part of the scope of supply of drive. The test shall be performed in accordance with international standards and quality assurance procedures. A combined test with the complete drive system including transformer, converter and motor is mandatory to verify the performance and to ensure a smooth integration into the facility.
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Control Panel The control panel features a multilingual alphanumeric display for easy drive configuration with following features
• A large Alphanumeric Display
• Soft and convinient keys
• Local Control keys (Start/Stop/reference)
• Set and monitor parameters
• Status and history data
• Real-Time clock
7.r) A.C. Winder
SPECIFICATION FOR FOUR QUADRANT VARIABLE SPEED DRIVE WITH LOW HARMONICS ; INVERTER GRADE MOTOR AND MATCHING TRANSFORMER WITH MOTHER BOARD, TECHNOLOGY CARDS, LICENSED SOFTWRAES, APPLICATION SOFTWARE ETC.
General Specification of AC Direct Torque Control Variable Speed Drive: (a) Starting torque:
The variable speed drive shall be capable to provide full starting torque even under weak network conditions. The drive shall be able to regulate torque precisely controlled throughout the entire speed range and harmful torque peaks shall be eliminated.
(b) Power loss ride through:
The drive shall be able to withstand disturbances on the power supply due to power loss ride through function. The drive will continue to operate in an active but non-torque producing mode if the incoming supply voltage is cut off. The drive shall be active as long as the motor rotates and generates energy to the drive. It will resume normal operation immediately upon return of power supply.
(c ) Winder control:
VSDs shall enable soft starting and stopping of the winder and a smooth and fast acceleration and deceleration, to allow for greater winder control and avoid prime mover heating up.
(d) Remote monitoring and diagnostics: Monitoring winder equipment to allow operators and maintenance personnel to schedule preventive maintenance
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tasks, to increase the safety and reliability of the operations. The drive system shall be capable being equipped with an intelligent remote monitoring and diagnostics system to deliver important information on winder status and possible maintenance tasks needed.
(e) Lower energy consumption:
VSDs shall have capability of to allow regenerative braking. Braking energy shall be fed back into the plant electrical network, lowering the energy consumption.
(f) Integrated Transformer:
The drive shall be with an integrated suitable rating transformer.
(g) Mining solutions:
The variable speed drive shall be suitable for mine winder applications. The drive shall meet the most stringent mining standards suitable for the harsh environment.
(h) Arc fault protection:
The drive shall be IAC classified, to ensure very fast arc detection and elimination to protect people and equipment.
(i) Emergency off / emergency stop:
The drive shall be equipped with emergency off and emergency stop functionality.
(j) Remote monitoring and diagnostics:
The Drive shall be capable of real-time access to parameters supporting monitoring and diagnostics of drive independent of the implemented control method, thus enabling the connection of existing installations. The drive monitor shall consists of a hardware module, as well as a software to automatically collect and analyze selected drive signals and parameters. The monitored functions shall deliver important information on equipment status, tasks required and possible performance improvements. Diagnostic procedures and trending shall cover not only the converter itself but other parts of the drive system as well.
(k) Direct Torque Control (DTC):
The drive control platform shall be based on the Direct Torque Control (DTC), resulting in the highest torque and speed performance, as well as lowest losses . Control of the drive shall be immediate responsive and smooth under all conditions.
(l) State of the are technology:
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High power semiconductor switching devices to match the winder requirement with the state-of the- art technology having high efficiency, reliability and spare part support for at least 15 years before up-gradation of drive. support.
(m) Heavy duty, Inverter grade, low loss, AC motors:
The motor with an excellent performance and reliability shall be supplied, preferably from manufacturer of VSD.
(n) Converter transformers:
Specifically designed Converter transformer for operation with VSDs, to adapt the converter to the supply network and provide a galvanic isolation between drive and supply network. Secondary voltage of transformer shall be optimized to match the converter and motor voltage. Oil / dry types for indoor mounting shall be provided with bus bar connections.
(o) Testing of drive:
The quality standards and requirements shall be fully met and every component of drive shall be subjected to thorough testing in modern test facilities. Routine tests and functional tests shall form an integral part of the scope of supply of drive. The test shall be performed in accordance with international standards and quality assurance procedures. A combined test with the complete drive system including transformer, converter and motor is mandatory to verify the performance and to ensure a smooth integration into the facility.
(p) Installation and commissioning:
Installation and commissioning of the winder drive and associate accessories shall be done by qualified and certified commissioning engineers for safety and reliability of system.
(q) Life-cycle management: Life-cycle management includes:
• Providing spare parts and expertise throughout the life cycle • Providing efficient product support and maintenance for
improved reliability • Adding functionality to the initial product • Providing a smooth transition to a new technology at the end
of the life cycle (r) Training:
A proper training program shall be offered from basics to programs tailored to the customer’s specific requirement.
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Experienced specialists shall impart practical training to mine winder personnel at site.
(s) Hoist control and monitoring systems:
The winder control system shall be is based on latest Industrial IT technology. Complying with stringent safety and availability requirement of mine winder applications. The fully automatic system shall include control of feeders, conveyors and measuring bins at the loading station l as well as pushbutton control of multi-level man/material winder . The system also provide semiautomatic testing of safety functions and prints out comprehensive production and performance reports. Protection against over speed and over winding shall be integral part of the system.
(t) Technology:
The latest technology, with DTC, Direct Torque Control, using IGCT, Integrated Gate Commutated Thyristors, for torque and speed control of AC motors for mine winder applications shall be used. It shall be capable of high efficiency, superior control performance, low voltage drop in the supply network and low harmonic distortion as well as very low flicker. The drive shall be equipped with powerful maintenance software.
(u) Rope Oscillation Control:
Rope Oscillation Control. Integrated into the electric drive system shall be provided to reduce oscillations during hoisting cycle to increase the rope life and the transport comfort during men winding. The system shall be Integrated into the emergency control brake unit to allow static rope safety,
(v) Low Voltage Drives overview:
(i) General This standard LV Drives System Description includes possible solutions and features. Please see the Scope of supply for the list of items, which are included into this specific quotation.
(ii) General Specifications Main Connection Short Circuit Capacity : 50 kA Voltage : 415V Voltage Fluctuations : ± 10% Frequency : 50 Hz Power Factors : cos Ø = 0.97 (fundamental) Efficiency at Nominal Power: > 98 %
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Motor Connection Voltage : 415V Frequency range : 0-300 Hz ( or depending upon the drive offered) Control Method : Direct Torque Control (DTC) Switching Frequency : 2 kHz on the average ( or depending upon the drive offered) Following are nominal parameters Tenderer may specify depending
on drive offered Torque Control: Torque Step Rise Time from 0 to 100%: Open loop 1…<5 ms with nominal torque Closed loop 1…<5 ms with nominal torque Non-linearity: Open loop ±4% with nominal torque Closed loop ±1% with nominal torque Speed Control: Static Accuracy: Open loop 10% of the motor slip Closed loop 0.01% of the actual speed Dynamic Accuracy; Open loop 0.3...0.4%sec with 100% torque step Closed loop 0.1...0.2%sec with 100% torque step
Environmental Limits
Ambient Temperature: Stationary use: 0...50°C Storage : 25...55°C Transportation: 40...70°C Cooling Method : Dry clean air Altitude : ≤1000 m 100% without derating
1000...4000 m with derating Relative Humidity: 5 to 95%, no condensation allowed Protection class (Cabinet): IP 54
Contamination level: Operation
IEC60721-3-3, Class 3C2 (Chemical gases) Class 3S2 (solid particles without air inlet filters)
Vibration
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IEC60068-2-6, 10…58Hz 0.075mm displacement
Amplitude 58…150 Hz 10m/s2 (1g)
(iii )Direct Torque Control (DTC) Direct Torque Control, DTC, AC motor control method shall be used. Each AC motor phase voltage is generated by changing the states of the semiconductor switches between positive and negative DC voltage. In DTC, every switching is determined separately based on the values of flux and torque, rather than switching in a predetermined pattern as in flux vector drives which are based on Pulse Width Modulation (PWM).
The measured motor current and voltage are inputs to an adaptive motor model, which produces exact actual values of torque and flux. The motor torque and flux are compared to the respective reference values. Depending on the present switch positions, the optimum pulse selector directly determines the new optimum inverter switch positions.
DTC has no fixed switching frequency because of the optimized switching control. Because of this, the noise spectrum has no high frequency peaks, resulting in reduced audible inverter and motor noise levels.
DTC is operating with a high-speed sampling rate (25 micro sec.), which enables high dynamic performance of the torque control.
(iv) Main Features The AC drive offered shall be customized to meet the precise needs of winder application. These drives cover a wide range of powers and voltages.
Modular design :
The drive shall be highly flexible AC drive, designed for mine winder applications and shall cover a wide range of powers and voltages. All the powers above a particular range shall be of different configurations of modular units, which with plug in connector for easy maintenance. The completed modularity facilitates and reduces the interface between the inverter and outside devices. It is also helpful in rapidly replacing l minimizing the shutdown time of winder
. Parallel connection of several modules will be built up a capacity of redundancy to some degree. Once one module is failure, the drive device will isolate broken inverter module immediately and winder
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drive will be able to run with partial load. It enable the process continue with less output rather than stop. Redundancy due to modular construction Built-in redundancy through parallel connected modules Each module is a complete three-phase inverter Enables running with partial load if one module fails Provides for higher drive availability and greater process
uptime (v) Built-in Features
EMC filter for 1st or 2nd environment Analog and digital I/O extension Fieldbus modules Pulse encoder interface
(vi) DI / DO and AI/AO Shall be at least 30% additional than required for operation.
(vii) Control I/O connections Control I/O’s ( To be specified by Tenderer)
(viii) Standard I/O’s on JCU board
• Control voltage supply: external supply (24V DC) input for the control unit
• Digital I/O: To be specified by Tenderer • Analog I/O: To be specified by Tenderer • Thermistor Input: Motor thermistor • Start Interlock: Drive interlock input • Drive-to-drive link: Galvanically isolated, can also be
used for Modbus • Safe Torque-Off (STO): To be specified by Tenderer IEC 61508 and Safety category 4 acc to EN 954-1
• PC tools and control panel connection:- To used also as a Modbus link for monitoring.
• Memory unit connection:- To store complete drive configuration and settings.
(ix) Optional I/O’s
• Analogue & Digital extension. • 8xDI/O, 4xRO (To be specified by Tenderer ) • 4xAI (mA/V), 2xAO (mA), 4xDI/O (To be specified by Tenderer ) • 2xAI (mA/V),2xAO (mA), 2xDI, 2xRO (To be specified by
Tenderer )
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(x) Feedback interface
• 2 inputs ( for encoder), 1 output (To be specified by Tenderer ) • 2 inputs (SinCos absolute, TTL incremental encoder), 1 output
(To be specified by Tenderer ) • 2 inputs (Resolver, incremental encoder), 1 output • input (HTL incremental encoder), 1 output
Control I/O’s, integral part of drive Standard I/O on mother board . control board
• 3 analog inputs : differential, common mode voltage ±15 V,
galvanically isolated as a group.
- One ±0(2)...10 V, resolution 12 bit
- Two 0(4)...20 mA, resolution 11 bit
• 2 analog outputs : - 0(4)...20 mA, resolution 10 bit
• 7 digital inputs : galvanically isolated as a group (can be split
in two groups)
- Input voltage 24 V DC
- Filtering time 1 ms
• 3 digital (relay) : Changeover contact
Outputs - 24 V DC or 115/230 V AC
- Max. Continuous current 2 A
• Reference voltage output : ±10 V ±0.5%, max. 10 mA
• Auxiliary power supply output : +24 V ±10%, max. 250 mA
Optional I/O’s • Analog I/O Extension Module
• 2 analog inputs : galvanically isolated from 24V
supply and grounded
± 0(2) to 10V, 0(4) to 20mA or
± 0 to 2V Resolution 12 bits
• 2 analog outputs : galvanically isolated from 24V
supply and grounded
0(4) to 20mA,, Resolution 12 bits
• Digital I/O Extension Module
– 3 Digital inputs : Individually galvanically isolated
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signal level 24 to 250V or
115/230V AC
– 2 relay (digital) outputs : changeover contact 24V DC or
115/230V DC; Max 2A
• Pulse Encoder Interface Module
– 1 incremental encoder input:
- Channels for zero pulse
- Signal level and power supply for the encoder 15 or 24 V DC
- Single ended or differential inputs
- Maximum input frequency 200 kHz ( Tenderer to specify)
(xi) Field bus control (Tenderer to Specify ) Most of the advanced multinational industrial drives have connectivity to major automation systems. This is achieved with a dedicated gateway concept between the fieldbus systems and drives.
The fieldbus gateway module can easily be mounted inside the drive.
The tenderer should specify available gateways: like
• PROFIBUS-DP • DeviceNet • CANopen • ControlNet • Modbus
(w) Drive communication Appropriate protocol shall be used for communication of drive with offered automation System.
(x) Control Panel The control panel features a multilingual alphanumeric display for easy drive configuration with following features
• A large Alphanumeric Display • Soft and convinient keys • Local Control keys (Start/Stop/reference) • Set and monitor parameters • Status and history data • Real-Time clock •
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(y) Back-up Drive parameters shall be saved to the PC provided with control unit and shall be easily downloaded back to the drive whenever required. The same goes for the software. DriveWindow allows the entire control board software to be saved and restored later, if needed. This makes it possible to use one control board as a spare part for many different sizes of drives.
(z) Rating of AC Drive as per description above
RATING OF DRIVE IN AMPERES As per design but not less than 1200 Amps
VOLTAGE 415 VOLTS ( +- 10%) SPECIFICATIONS AS OUTLINED ABOVE
(aa) The drive shall be provided with various modules but not
limited to mentioned below:
i) Analogue and digital I/O extension modules ii) ATEX approved motor protection Cabinet heater iii) Customer terminal block du/dt fi lters iv) Earth fault monitoring for unearthed network v) EMC filter for 1st environment, restricted distribution
according to EN 61800-3 (category C2) vi) Field bus modules vii) IP54 or IP54R protection degrees viii) Emergency stop, category 0 or 1 ix) Output for motor fan x) Pulse encoder interface module xi) Prevention of unexpected start up of motor xii) Bottom entry and exit of cables xiii) 2 thermistor relays
Specification of heavy duty inverter grade low loss motor
(preferably from AC drive manufacturer)
RATING IN KW 187 VOLTAGE 415 VOLTS ( +- 10%) GRADE INVERTER
SOURCE FREQUENCY 50 Hz Motor type IEC 34 catalog Efficiency AS PER IE3 IP class IP55 IC class IC411 self ventilated IM class IM1001, B3(foot)
Max. speed rule Standard Temp. rise B (<80 K)
Poles 4 Synchronous speed [rpm] 1500
Max mech.speed [rpm] To be specified by tenderer
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Full load Current [A] 245 Torque [Nm] To be specified by tenderer
Tmax/Tn To be specified by tenderer Power factor 0.85 or better than 0.85 Efficiency [%] 96% or better
Temperature rise class B Insulation class F
Over Load Capability 160% of Full load current for 10 seconds
Documentation on convertor:
i) Catalogue for Parameterization procedure ii) Catalogue giving details of Parameter types iii) Provision for Manual setting of motor parameters iv) Manual setting of field resistance v) Procedure for starting up electronic boards and technical
boards vi) Sequence of operations for starting up Profibus / Modbus /
Ethernet bus boards vii) Sequence of operations for starting other bus boards if
provided viii) Procedure for starting up software Link boards ix) Procedure for staring up expansion boards x) Procedure for starting up the pulse encoder board Drive (Convertor) should display following:
i) Fault messages ii) General information about faults iii) List of fault messages iv) Supply faults v) Interface error vi) External faults vii) Fault messages from motor sensors viii) Drive faults ix) External faults x) Start-up faults xi) External faults xii) Hardware faults xiii) Internal faults xiv) Communication errors with supplementary boards xv) Faults messages from supplementary boards xvi) Alarms
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SUPPLY VOLTAGE & UTILISATION VOLTAGE :
The supply voltage shall be 33 KV, 3 phase, 50 Hz, AC at incoming electricity board and utilization voltage shall be 415 V, 3 phase, 50 Hz, AC. MOTOR CIRCUIT: The AC power shall be fed into the Variable Speed Drive through suitable power transformer to be supplied along with VSD preferably by VSD manufacturer. The transformer shall be compatible with the requirements of VSD conforming to IEC standard / IS: 2026 (latest). Suitable protection shall be provided in both input and the output side of the Transformer and VSD. Speed Regulators
The winder motor control unit shall comprise of speed regulator system. The speed of the winder motor shall be controlled through this speed regulator. The speed regulator system shall be capable of regulating the changing torque of the motor by adjusting the VSD current and VSD voltage applied to motor operating the winder. The control unit shall also sense accurately the commencement of winder operating cycles.
Blocking device
The speed regulator shall be equipped with a suitable blocking device as per the requirement of winder duty cycle. The blocking device shall be operative at the time of braking action of the winder or any fault either electrical or mechanical type during the winder operating cycles.
Electrical Braking The AC power line must be capable of absorbing the power returned to the AC power line during the regenerative braking action.
General Requirements of VSD VSD shall be capable of withstanding excessive moisture (relative humidity more than 95%). VSD shall be capable of withstanding excessive dust. VSD shall be capable of withstanding ambient temperature up to 550 C. The VSD shall be capable of operating at the steady AC fundamental line voltage in between 90% and 110% of nominal AC line voltage. The VSD shall be capable of operating at the AC line frequency variation of + 3% and – 5%.
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The VSD shall be capable of withstanding AC line voltage waveforms:
• repetitive peak deviations of the fundamental line voltage from the instantaneous value of the line voltage.
• Dips forming excursion of the instantaneous line voltage • Sub-cycle voltage dips for longer durations. • Non-repetitive over voltages shall not damage any part of the
VSD Protections Thyristor Converter Protections: The following protection shall be provided:
- converter circuit protection - power transformer protection - over current and instantaneous current protection - surge current protection - transient voltage protection - overload protection - AC under voltage protection - earth fault protection - any other protective device considered necessary
Drive Protections: - over speed protection of the motor - VSD over temperature protection - protection required for the motor during regenerative operation - phase loss protection - any other protection considered necessary
Design (Type) test for thyristor converter i) Dielectric tests ii) Rated Voltage Test iii) Impulse withstand voltage test iv) Any other test considered necessary
Production (Routine) Test The VSD shall be capable to operate over its normal output voltage range at no load
Optional Test
i) Loss measurement ii) Phase control
Diagnostic Panel
Winder motor control panel shall be provided with the following diagnostic or trouble shooting aids:
i) A test panel with built-in meters to monitor critical regulator, power supply and motor power circuits etc.
ii) IGBTs monitoring
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iii) A memory type faults finder for protective circuits to indicate major faults such as field loss, over current, suppression etc.
iv) Light or meter indicator to indicate the presence of gate pulses v) Block diagrams of all basic functions of circuitry, voltages
waveforms and other signals that would aid in trouble-shooting vi) Provision for measurement in AC. input and AC. output voltages
and currents vii) Regulators shall have provisions for metering for references and
outputs viii) Critical test points shall be easily accessible ix) Elementary circuitry drawings that are cross referenced in case of
trouble shooting aids shall be provided. Instruction manual shall include procedures and other pertinent information relating to trouble-shooting. SAFETY APPLIANCES COMMON TO AC / DC DRIVES
(8 ) AUTOMATIC CONTRAVANCES SAFETY DEVICES FOR WINDER USING VARIOUS SENSORS
The winder shall be protected from over travel (Travel of a conveyance past the planned/programmed stopping) and over speed (speed more than that required or programmed for any particular point at the travel in the shaft). Over travel and over speed can cause serious/fatal injury to men and damage to equipment.
Hoist controller (automatic contrivances) provides for the following controls: i) To prevent over speeding in hoisting and lowering; ii) To sound an alarm and shut off the motor when normal speed
is exceeded; iii) To initiates brake application if the winder speed at any point
of the wind exceeds the designed cycle speed i.e. shadowing the winding cycle;
iv) To warn the driver when to commence retarding the hoist and stop it if the warning is not heeded;
v) To give warning followed by brake application if the predetermined retardation rate is not conducted;
vi) To prevent the conveyance from using hoist beyond limits, for which the controller is adjusted;
vii) To cut off the power supply and apply the brake if the hoist is started in a wrong direction;
viii) To prevent the conveyance from being landed at a speed greater than 0.5 m/s.
The automatic contrivance shall be designed based on PLC &
robust & rugged field sensors, exactly functioning like a Lilly Hoist Controller shall be used. Its principle of operation is based on the coordinated movements of governors and cams - The governor following the hoist speed and the cams following the relative position
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of the mine cage. The system will incorporate disk operated signal generator with multi holes to give accuracy of the order of 0.10 mm. It will be programmed in such a way to closely monitor the positioning of skip in shaft, position at loading point, slow banking zone and acceleration zone with respect to time. The position will be displayed on LCD mimic to driver. Hoists handling both man and material are to be provided with automatic safety equipment arranged to function at will, for men or material. “Man safety equipment” ensures safe permissible man riding speed and stipulated acceleration/retardation (less than or equal to 0.75 m/s/s), and hoisting up to man landing station which may be other than the material dumping level. This unit usually is engaged and disengaged by a hand lever placed within the reach of the hoist man. The winder is provided with clutch for both drums. It means both the clutch units have proper interlocking provision with brakes. The clutches must be always interlocked to prevent brake release and the clutch release simultaneously. Declutching should be only possible when the brake is in ‘on’ position.
Interlocking provision shall be provided in winding system so that the winder will start only when:
a) the keps are withdrawn from all the levels b) the gates of shaft top and bottom are in closed condition.
A field sensing device to give warning of slack rope (may be due to not withdrawing keps or due to other obstruction in a shaft) to the winding engine man. Ultimately all such signals from field shall constitute input for PLC & logic shall be developed through programme to suit our requirements. Winding system shall be provided with suitable buffers accept a cage fully loaded with men striking them at a speed not less than 1.6 m/s up to 3 m/s and to retard the cage at a maximum retardation rate of 1g, (i.e.9.81 m/s/s) and a peak rate which at no point will exceed 2.5 g. The ascending cage is protected by the detaching hook. The winder should be brought to rest by safety devices when movement of the conveyance does not coincide with the drum or sheave. In the field of shaft signaling provision should be made to enable shaft’s men to transmit signals efficiently from a conveyance to the surface from all positions in the shaft. Shaft signaling system should be provided with visual indication of “stop – false signal” to cater for the receipt of a signal by the engine driver which has not been transmitted by operation of either the banks man or setter’s signaling apparatus.
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Rope speed indicator, head frame mounted limit switch & proximity switches or induction sensors, operated directly by conveyance, over wind catches in the head frame, brakes inter locking, shaft signal and communication etc. are part and parcel of the safety devices with winding systems.
(9) FIELD INPUTS REQUIRED FOR PLC PANEL Various field inputs required have been described under the heading of automatic safety contrivance. However to streamline, the various control signals required for smooth operation & safety of winder have been given with further details as under:
i) Over hoist signal for left & right drum through heavy duty limit switch of normally closed type. A separate provision through proximity switch/ Magnetic switch shall be provided in addition to limit switch. Separate control cable of 2.5 sq. mm shall be laid for left & right limit switches up to Junction Box. It shall be integrated with signal generator to sense accurately over hoist position & to trip the system.
ii) Over wind signal for left & right drum through heavy duty, normally closed type proximity switch/ magnetic switch shall be provided in addition to limit switch. Separate control cable of 2.5 sq. mm shall be laid for left & right limit switches up to PLCs. It shall be integrated with signal generator to sense accurately over hoist position & to trip the system.
iii) In the event of either over wind or over hoist, PLC shall be programmed in such a way that direction of travel automatically reverses irrespective of driver’s selection of forward or reverse.
iv) Since over winding signal will be received through signal generator/shaft encoder, logic shall be developed, to bypass the system so that driver can clear over wind.
v) In case of over hoist, which will be set at a higher level than over wind, the motor should trip & shall not be operable until & unless pass word is entered through PLC.
vi) Speed of the winder shall be continuously monitored through encoder / tachometer, and centrifugal switch. In the event of high speed, system should trip automatically. However it should provide audio visual alarm at required setting to indicate higher speed before tripping.
vii) Inputs from hydraulic system, solenoid valves etc. shall be taken to PLC to provide drive command if the system is healthy.
viii) Field sensors shall be utilized to sense the actual physical contact of brake band with brake drum. In case, if the brakes have been applied but brake shoes have physically not actuated, the system will automatically apply the dynamic brake, holding the loaded cage.
ix) Both the clutch units shall be provided with suitable interlocking.
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x) Transition of speed from slow banking zone to acceleration zone and acceleration zone to slow banking zone shall be smooth.
xi) Provision of properly designed thruster brake shall be done to operate in emergency in conjunction with dynamic braking. The system & logic shall be designed in such a way that in the event of failure of mechanical brake, dynamic brake will be applied immediately. The braking torque shall be sufficient enough to hold maximum out of balance load.
xii) Proper parameterization shall be done while commissioning the cage so that there is no tendency of the loaded cage side to travel downward, while releasing the brake.
xiii) Inputs from all the field devices shall be brought to PLC using PROFIBUS / MODBUS / ETHERNET CABLE to facilitate programming as per requirement.
xiv) Inputs for recording speed versus time, trips versus time, load hauled versus time shall be connected to PLC, so that it can be integrated to software for generation of report & meeting statutory provisions.
The winder motor control system shall be compatible with the winder standard specifications.
10.0 SIGNALLING & COMMUNICATION : Audio-visual and telephonic communication between the on setter, banksman, cage loading and unloading point and the winding engine operator should be provided. Signalling system for cage hoisting should ensure sending and receiving of audible and visual signals during transportation process. • All signalling and communication equipment should be certified to meet the stringent safety requirement applicable to mining and should be sufficiently rugged & reliable. • Dust proof communication and signalling system should be provided. • System should be modular in construction. • Provision of telephone communication should be made. • Cables to be utilised should be matched with requirement of the system and shall be suitable to be used in underground mines. • The cage telephone system from travelling cage to the winding engine operator shall also be offered.
11.0 INTERCOMMUNICATION A two way intercommunication system having a capacity of 20 lines shall be connected in between winding engine operator & various levels & loading station shall be provided. Total no. of communication points will be 10. The system should facilitate interfacing with existing intercom network. A separate jelly filled cable of 20 pairs shall be laid right up to loading station.
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This cable will be terminated at eight different levels including winding engine drive, banks man, loading station. All termination points shall be enclosed in totally sealed, moisture proof terminal boxes. The telephone provided in the underground will be moisture proof.
12.0 SIGNALLING SYSTEM The signaling system for communication between master banks man, banks man at different levels & winding engine driver shall be provided. The system should be capable of providing signal for 6 different levels including surface. A brief out line of system has been given below.
All the signals generated from underground as well as loading station will be received by master banks man on surface. In turn, master banks man will give signal to driver to raise /lower the cage as per requirement. Master Banks man control desk will be provided with LED/LCD display in Alphanumeric along with visual indication. The master banks man has the option to choose a particular level from which he wants to communicate. The moment he chooses a particular level for communication, all the incoming audio signals are received from a bell. Audio Signals from other levels are received through buzzer. Visual indication has been provided for all the levels. Master Banks man passes the signal to Winder driver through no. of raps of bell. Winding engine driver has also audio visual panel to receive signals for different levels through Master Banks man. The visual indication at both the panels can be reset. The driver panel has indication for KEPS “ON” and “OFF” indication for all the levels. In case if any of the KEPS is in “ON” position the lamp of that particular levels shall glow indicating that it is dangerous to operate winder. However in case of Master Banks man he can only see whether any of KEPS is in “ON” position. The wiring shall be done in parallel so that even if one the KEPS is on condition, the KEPS “ON”, indication will glow indicating a danger. The system shall be designed operationally as mentioned above. However the LED/LCD visual display should be available for all the levels in alphanumeric form. The display will be in the form of no. of raps such as 3-1 (three raps and then pause & one rap) along with appropriate message such as “LOWER FOR MATERIAL HANDLING” etc. Each raps has different message such as rap 1 means “STOP” etc Each level shall be provided with signaling box of suitable size to generate signal to Banks Man from each level including surface. These boxes shall be provided with push button to generate signal, electronic bell, selector switch to select a particular level if a minor wants to visit. Since complete signaling system shall be through distributed I/Os all other signaling cables from gate open
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close, Keps on / Keps off shall also be terminated in the box. Enclosure for generating signaling and selection of particular level shall be enclosed in a separate box. Distributed I/Os and termination of cable for gate and Keps shall be enclosed in a separate box. These boxes shall be IP 67 protected. The system shall be provided with separate level boxes for each level with IP 67 grade boxes. All the field cables from sensors shall be terminated in box. Level to level boxes and PLC at relay panrl on surface shall be connected with two parallel armoured profibus / modbus for signaling system rather than conventional multi core signaling cables. The parallel armoured profibus / modbus shall provide redundancy in the system in case of failure of one profibus / modbus cable . The signaling system shall function and programmed as required by DGMS as well as explained above. The person travelling in cage shall be in position to activate signal to master banksman through wireless ( radio signal) in each level. The sensor shall wireless switch shall be provided at each level to activate signal to master banks man. Telephone communication shall be provided in cage to masterbanks man . 13.0 CONTROL DESK : The controlling of the winder shall be effected by the driver from a desk which shall be provided with following facilities to the driver: • A clear view of stopping marks on the drum or winding rope and
of the depth indicator. • Indication of rope speed and winder motor current • Indication of the state of switchgear and other safety circuits etc. • Emergency stop. • Resetting the winder after emergency trip.
• Manual / Automatic control of the winder speed and mechanical brakes.
• Remote control of the switchgear.
SPECIFICATION OF CONTROL DESK FOR WINDING ENGINE
DRIVER i) Control desk shall be designed ergonomically.
ii) Modern rugged contact less Multi axis Joy stick from Gessmann, model no. VV6
iii) It should have auto /manual mode of operation.
iv) The panel will be provided with bright lit green colored digital panel meters for armature current, field current, armature voltage, field voltage, digital rope speed indicator. All the panel meters will be 96 x96 mm size.
v) Audio visual alarm for high speed indication.
vi) Distinctly different audio visual alarm signal for slow banking.
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vii) Push buttons to start & Stop Hydraulic Pumps with interlocking arrangement so that if one pump fails the other pump shall be automatically switched on.
viii) Drive on command.
ix) Over hoist indication.
x) Over wind indication
xi) Foot operated switch to bypass over wind.
xii) Hydraulic pressure on indication.
xiii) Drive trip under over load indication
xiv) Drive under dynamic braking indication
xv) Thruster brake on indication
xvi) Drive “ON” / “OFF” glow type push switches
xvii) Emergency Push Button switch
xviii) Speed selector switch
xix) Forward /Reverse switch
xx) Speed control lever
xxi) MCBs for light /fan control
xxii) LCD based mimic screen displaying exact positioning of both cage with distance in respect to surface & Weight of loaded Cage.
xxiii) Communication terminal with a hand set as well as head set.
xxiv) Testing arrangement to test winder for tripping after applying left hand brake band, right hand brake band, both the brake band, tripping due to over speed, over hoist, over wind, both and individual brakes, testing for single phasing etc.
xxv) Lamps indicating “KEPS IN “ / “KEPS OUT” / “GATE OPEN” / “GATE CLOSE” for all the levels. Display for maneuvering cage at different level after receipt of audio visual signal from master banks man. All the levels where cage has to be taken will be represented by a LED lamp for UP as well as DOWN movement, indicating clearly the level where winding engine operator has to stop the cage. A separate push button shall be provided for communicating with Master Banks man and push button for resetting the LED lamps for level where cage has been already attended.
xxvi) Any other indication necessary for safe operation.
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14.0 LT SWITCH BOARD AND OUTGOING CONTROL PANEL:
A suitable LT switchboard with control panels, indoor type for operating the winder shall be included in the offer. The switchboard shall be provided with Air circuit breaker panels. The panels shall be made of steel sheet fabrication, dust and vermin proof, free standing and floor-mounted type. There shall be sufficient reinforcement to have level surfaces resistance to vibration, rigidity during transportation and installation. The panels shall be designed to withstand stresses that may set up in dealing with short circuit conditions. The panel board shall be sectionalised and extensible on other side.
The LT switch board shall conform to latest of the following (India)n Standards or its equivalent international standard:
IS : 3427 - Metal enclosed switchgear and control gear
IS : 2516 - Circuit Breaker
IS : 375 - Marking and arrangement for switchgear bus bars, main connections and auxiliary wiring.
IS : 1248 - Indicating instruments.
IS : 2705 -Measuring and protective Current Transformer.
IS : 3156 -Measuring and protective Potential Transformer.
Enclosure should comply with requirements of IP51 of IS: 2147.
Service condition shall be complied with IS: 4237 / IS: 8623 and should be designed for an ambient temperature of 550C and suitable for indoor installation.
The AC /DC drive shall have following hardware and peripherals i) AC / DC drive as per description above. ii) Matching transformer from the drive manufacturer for AC drive iii) Inverter grade heavy duty motor, preferably from drive
manufacturer with low loss for AC drive iv) Latest Computer with i7 processor for diagnostics of drive and
field devices in control room with printer, 60 minutes UPS. v) Latest Computer with i7 processor in control desk of winder
driver with SCADA with 60 minutes UPS. vi) Licensed software for two units to develop SCADA, application
software, drive software for diagnostic. vii) Two units of 1200 Amps ( minimum 1200 Amps or as per design)
Siemens make 3 WL11F ACB with ETU45 release or equivalent ACB. One ACB shall be incomer and the other ACB shall be used as incomer for drive. Both the ACB shall be provided with 30 mA sensitive Siemens make ELR. The bus bar shall be of copper with 3 phase and neutral composition.
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viii) The incomer ACB shall be provided with 4 nos. 63 Amps MCCB, 4 nos. 32 Amps MCCB and 2 nos. 125 Amps MCCB. All the outgoing modules shall be provided with ELR having sensitivity of 30 mA complete with SFU, ON/ OFF/TRIP indications push buttons, digital multifunction meters etc.
The details of modules in winder power control panel are as below
• In coming ACB of Siemens make 1200 Amps ( Minimum or as per design of system), 2 Nos. One breaker shall serve as incomer to power and the other of identical rating as outgoing for AC/drive.
• The ACBs to be used as incomer power panel shall be provided with digital voltmeter, digital ammeter, ON/OFF/TRIP indicator, ELR of Siemens make with 30 mA sensitivity, CLOSE/ TRIP/REMOTE lever, ELR testing with indication of leakage.
• The ACB supplying power to drive shall have provisions as mentioned above and apart from above digital meter showing RPM of motor, and digital meter for rope speed shall in meters per second shall be provided.
• The panel sgall be provided with 3 nos. Of 250 Amps MCCB, and 3 nos. 100 Amps MCCB and 2 nos. Of 63 Amps MCCBs for miscellaneous loads. All the outgoing modules shall be provided with digital multimeter, ON/OFF/TRIP indication and ELR with test push button.
Earthing and earthing devices for the switchboard shall have the following features:
- Two earth terminals shall be provided on each switch cubicle at the back near the floor and an earth bar of adequate capacity will be fixed to these terminals.
- Each breaker cubicle shall have the provision to earth feeder circuit through the breaker. In the earthed position, the electrical trip shall be rendered inoperative. Alternately, an earthing truck shall be provided.
15.0 TESTS : All tests for the electrical equipment should be as per relevant (India)n Standard Specification (ISS) electricity rules or its equivalent and necessary certificates shall be enclosed. 16.0 SAFETY FEATURES : I. Following safety features should be incorporated:
i) Speed indicators
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ii) Speed recorder iii) Independent indicators showing the position of each cage in
the shaft. iv) Automatic contrivance to prevent over-winding, over-speed,
for supply failure, emergency stop, low brake oil pressure and to ensure slow banking
v) Men & material winding-The indicators and settings are to be provided in the contrivance for men and material winding.
vi) Limit switches are to be provided in the contrivance and the headgear to prevent over winding.
vii) Protective arrangements to prevent the winder from being started in a wrong direction.
viii) Audible signal to indicate when the cage is at a distance of not less than two revolutions of the drum from the banking position.
ix) INTER-LOCKS: a) Inter-locks between gates at the banking level b) Kep inter-locks to prevent winder being started without
withdrawing keps. c) The brakes and the gear clutch of the floating drum. d) Service and emergency brake. e)
II. Brakes:
i) Service Brakes and safety brakes operated by hydraulic system.
ii) In addition a brake on the motor coupling should be provided.
iii) The deceleration caused by the application of the safety brakes should not be less than 1.5 m/sec2 or more than 4.5 m/sec2
iv) Regenerative braking should also be provided. v) Braking system should be capable of dealing with
situations like: – At the time of rope changing. – Raising loaded cage above banking level while the other
cage is resting at the pit bottom staging. – At the time of dis-engaging the gear clutch of the floating
drum. vi) Brake path wear: Limit indicator and inter-lock to prevent
release of brakes in case of excessive wear of brake lining. vii) Emergency Brake:
In the following cases, emergency stop will be achieved by the automatic action of the main brake and/or the auxiliary brake to bring the winder to a safe and accurate stop. a) Over-winding and over-lowering b) Over-speed
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c) Over-load d) Trouble of electric power or other electrical trouble e) When winder does not decelerate at the point it should f) Pressure drop of brakes power oil g) Wear of brake shoe beyond a certain limit
III. Guards :
Necessary guards will be provided for all moving parts. Easy approach must be available for inspection and maintenance purpose.
17.0 TECHNICAL INFORMATION REQUIRED FROM SUPPLIER :
Following information should be supplied along with offer : a) Speed time diagram b) Power time diagram c) Torque time diagram d) Energy required per cycle with different duty conditions. e) RMS Power f) The details of calculations for arriving at required power and
torque should be furnished. The Power time and Torque time diagram should be prepared for the different duty conditions.
g) The extent and duration for which the winder motor can be overloaded beyond usual duty requirements.
h) Drawings, technical notes, manuals, documentation of the winder/ winding system
18.0 OTHER CONDITIONS :
i) The winder must conform to all the requirements of the Metal Mines Regulations and DGMS circulars as applicable to (India)n metal mines.
ii) The equipment will be of robust construction and manufactured as per up to date engineering practices duly complying with relevant (India)n Standard or equivalent International Standard. It will have inherent design features so as to give satisfactory performance in adverse loading conditions also.
iii) Coating: Two coats of preventive/ anti-corrosive, & two coats of finish painting shall be given in workshop. Colour of the finish painting shall be as per customer’s choice. During installation, any abrasion in shop coat shall be touched up with the same quality of paint as the original coat.
iv) Compliance with Standards: All components, material and equipment used will comply in general, with relevant (India)n
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or equivalent International Standards and in particular to the specifications furnished.
Sensors : Each level shall be provided with Tiffenbach bistable magnetic switches to get signals. Similar sensors shall be provided for slow banking. The permanent magnet sensor shall be provided on cage to actuate sensors at different levels. Similar switches shall also be provided for over wind and over hoist. Make of A.C./D.C. DRIVE : The A.C./D.C. shall be from multinational companies such as ABB, Siemens, who have supplied drive for mine winder applications. Proposed other drives with accessories by Tenderer has to be backed up by satisfactory performance of drive in mine winder of similar or larger capacity.
Make of Sensors : Bistable Magnetic Switches from Tiffenbach, Germany sensing distance 120 mm. These are time tested sensors and no other sensors shall be accepted. For cage as well as different levels, over wind and over hoist Joy SticK : Guassmann; model VV6 or better model; Germany
These are time tested joy stick and no other joy stick shall be accepted.
Proximity sensors : Baumer Hubner. Sensing distance 35 mm to 50 mm ; IP 67protected These are time tested sensors and no other sensors shall be accepted
19.0 CIVIL WORKS :
a) Excavations for Winder Foundation
All excavations for foundations shall be done to the minimum dimensions required for safety and working facility. The excavations must be carried out in the most expeditious and efficient manner. Prior to starting the excavations, the ground level at the location shall be checked. Rough excavations may be carried out up to a maximum depth of 150 mm above the final level. The balance excavations shall be excavated with special care. If the excavations are done to a depth greater than the required depth the excess depth shall be filled up to the required level with cement concrete not leaner than 1:4:8 mix ordinary concrete.
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Necessary dewatering, side timbering and protection should be done during the course of the excavations. b) Backfilling around foundations
Earth used for filling shall be free from silts, organic or other foreign matter. Material for backfilling shall generally be obtained from the excavated earth. Where the excavated materials is mostly rock, the boulders shall be broken into pieces not bigger than 10 cm size in any direction, mixed with fine material consisting of decomposed rock, moorum or earth as available, so as to fill up the voids as far as possible. c) Concreting
Cement-concrete shall be either ordinary or controlled and in grades designated as M-20 (1: 1.5: 3), as specified in IS: 456. Lean concrete shall be 1:4:8 mix with aggregate of nominal size 40 mm maximum with minimum thickness of 100 mm. Cement used shall be ordinary Portland cement conforming to IS: 269 latest revisions. Rapid hardening Portland cement may be used under special circumstances. Only fresh cement shall be used. Coarse stone aggregates shall consist of uncoated, hard, strong, dense and durable pieces of crushed stone and shall be free from undesirable matter like disintegrated stones, soft, flaky or elongated particles, salt, alkali, vegetable matter or other deleterious substances. Sand shall consist of siliceous material having hard, strong, durable, uncoated particles, free from undesirable amounts of dust, lumps, soft or flaky particles or other deleterious substances. Reinforcement steel shall be clean and free from loose mill scales, dust, loose rust and coats of paints, oil, grease or other coatings, which may impair or reduce bond. It shall conform to the following I.S. Specifications: i) Mild steel and medium tensile steel bars and hard drawn steel wire conforming to IS: 432; ii) Deformed bars conforming to IS: 1139. iii) Cold twisted steel bars conforming to IS: 1786 and iv) Structural steel sections conforming to IS : 2062. All steel reinforcements including and above 6 mm diameter shall necessarily be of tested quality. d) Foundation Bolts, Anchors, Openings, Sleeves, Inserts & other Built-in- fixtures: Suitable openings, grooves, pockets etc. shall be provided in concrete work as required for erection of equipment & structures. The contractor shall build into concrete work all the materials to be
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embedded and shall embed and secure the same as and when required. The material shall be of best quality available of approved manufactures and shall be to the satisfaction of MOIL. Exposed surfaces of embedded materials are to be painted with one coat of approved anti-corrosive paint, and/or bituminous paint. Correct location, exact alignment etc. of all the materials to be embedded shall be entirely the responsibility of the Contractor.
e) Fabrication of structural steel works
All steel materials shall comply with I.S. specifications. All workmanship and finish shall be of the best quality and shall conform to the best-approved method of fabrication. All structural materials shall be finished straight and shall be machined true and square where so specified. Shearing and chipping shall be neatly and accurately done and all portions of work exposed to view shall be neatly finished. Sharp connections shall be either by welding, riveting or high strength bolts and should maintain required quality. Chequered plates used shall be a minimum of 6 mm thick. Mild steel flats of suitable size shall be welded to the bottom of chequered plates at a designed spacing to stiffen chequered plates suitably, if required. Chequered plates shall be fixed by tack welding of suitable size. f) Brick Works :
All bricks shall be of the first class of standard specifications made of good brick earth thoroughly burnt, and shall be of deep cherry red or copper colour. Bricks shall be regular in shape and their edges should be sharp and shall emit clear ringing sound on being struck and shall be free from cracks, chips, flaws and lumps of any kind. Bricks shall be so made as to absorb not more than one-sixth of their weight of water after one hour of soaking by immersing in water. Bricks shall have a minimum crushing strength of 105 kg./cm2. Portland cement conforming to (India)n Standard Specification IS: 269 shall be used. Cement shall be stored in weather proof sheds on dry platforms and protected from rain and moisture. Cement, which has set or partially set shall not be used. Sand shall conform to IS: 383, 100% of the sand shall pass through IS. Sieve No.240 and not more than 15% to 35% through I.S. Sieve no.30. Sand shall have a fineness module between 2.1 and 2.5. Sand shall be clean and free from dirt, clay or other impurities. Mortar for brickwork except for half brick or lower thickness walls shall be 1 part cement and 6 parts sand (1:6) by volume. Mortar for half brick and lower thickness brick walls shall be 1 part cement and 3 parts sand (1:3) by volume. Cement and sand shall be mixed dry thoroughly on clean approved platform and water shall then be added to obtain a mortar of the
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consistency of a stiff paste, care being taken to add just sufficient water for the purpose. Mortar shall be used as soon as possible after mixing and within 2 hours after the cement is mixed wet. Mortar unused for more than 2 hours shall be rejected. g) Finish to Masonry & Concrete:
For cement plaster, cement and sand in the proportion of 1 : 6 shall be mixed dry on a watertight platform and minimum water added to achieve working consistency. Generally, the standard finish shall be used. The interior plaster shall generally be finished to a smooth surface. The exterior surface shall generally be finished with a wooden float. Flooring: Cement concrete in proportion 1 cement, 2 sand and 4 stone chips (1:2:4) shall be mixed dry on a water tight platform and laid in proper thickness so as to comply with drawings and specification. Floor may be finished with neat cement punning on top surface of minimum 2 mm thickness. h) Standards In general, all general, all relevant IS Codes/ CPWD/ NBO/ International standards, in order of preference, shall be followed.
20.0 SPECIFICATIONS OF SIREN / HORN A Siren shall be provided, which will be used for warning the people in the working area before start of work. The Siren shall be heavy duty, Industrial type, suitable for operation in the Mine & Plant environment. It shall operate on 230 V AC and will be audible up to 1.00 KM. It shall be suitable for operation in highly dusty and noise prone environment. 21.0 SPECIFICATION OF CONTROL POWER SUPPLY SYSTEM Control power supply shall be 230 V AC and it shall be independent of MCC power supply. For this, a separate control power supply will be provided. Control power supply shall be drawn from the Power Distribution Centre in the main panel. The power supply shall have adequate built-in protections against overload, short circuit and earth fault etc. The System shall have: Switch Fuse ( 2 Nos.) Control Power supply Transformers. 415/240 V. 6 KVA Copper conductor type (2 Nos.) HRC Fuses at all input and output sides. MCBs Ammeters and Voltmeters on front panel. A-3- Position change-over switch etc.
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At a time only one transformer will supply the control power and the other transformer (and associated circuitry) shall act as a stand-by. 22.0 SPECIAL CONDITIONS : 22.1 Time Schedule : The tenderer should submit an activity wise time schedule in the form of PERT chart / Bar Chart / Gantt Chart. The time allocated to each task should be technically viable. The time is an essence of this contract. The work is to be completed within 48 months from the date of issue of Work Order. 22.2 Muck Disposal: All muck generated, Ore or Waste rock from the said excavations made by the contractor is to be disposed of on the surface or at appropriate place as directed by Engineers In-charge. 22.3 Ventilation; The contractor should make arrangement for appropriate ventilation in the working shaft and all associated areas, during sinking operations. He shall install a suitable forcing fan at surface with ducting connected in the shaft as required under MMR. 22.4 Drainage and Pumping : The contractor shall be responsible for the proper drainage, in the excavations made by him. All accumulated water shall be pumped out to main drainage system of the Mine. The Contractor shall always keep himself equipped for operation & maintenance of pumps and pipe lines and other accessories for dewatering the site of excavation from inrush of water up to 1200 LPM( Liters per minutes). Electrical Power to operate the contractors pump etc. would be made available on chargeable basis as per schedule – “C”.
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Schedule – “A” Brief Description about Chikla Mine:
Chikla Mine of MOIL LIMITED, is situated in Bhandara District of Maharashtra state at a distance of 120 K.M. from Nagpur by road on S.H. No.-26 connecting Tumsar to Balaghat. Nearest railway station is Gobarwahi / Tumsar at adistance of 3kms. & 25kms. respectively of S.E. Railways. The National grid passing the Mine lease hold area is having the latitude 21°31’ North and longitude 79° 45’ East. The ore deposit was first located in the year 1883 but the regular mining was stated only in 1903. The total lease hold area is 150.6461Hect. granted in favour of MOIL in 1962 This mine is being worked by cut & Fill method of Underground working. A vertical shaft has been provided at 1800 ch for hoisting the ROM from underground levels. In light of enhancement of production & to maintain the production of this Mine , it is proposed to sink another vertical shaft at Ch.- 2510 for which this tender document belong to.
Chikla Mine is the second largest underground Mine of MOIL
and having tremendous potential in underground activities.The ore produced at Chikla Mine is of great strategic importance in the company and Nation as a whole. Realizing the importance of the ore produced at Chikla Mine, an extensive Mine expansion plan is made by MOIL. To cope up demand of the market, the extensive Research and development are being carried out to enhance the production with modification in mining, supporting, transporting and filling technology.
The area where the ore was out-cropping is hilly. There
are four ridges striking East-West direction.The average maximum temperature in summer is 44° Celsius in the shade and average rainfall is about 1400mm.
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Schedule – “B” MATERIAL, EQUIPMENT AND FACILITIES TO BE
PROVIDED BY THE COMPANY FREE OF COST TO THE
CONTRACTOR:
1. Adequate supply of water for construction and potable water
near work site. 2. Adequate number of properly charged and maintained cap
lamps for the use of Contractor’s staff and work men. 3. Suitable Rails as required for laying of temporary track line
will be supplied by the Company. Laying of temporary track line will be Contractors responsibility.
4. All type of Electrical cables needed for permanent installation
(shaft furnishing) shall be supplied by MOIL (wooden blocks for cable clamps, packings, H.T. nuts & bolts etc. shall be the Contractors responsibility. However the cables for Contractor’s works shall be within the scope of the Contractor).
5. All type of Pipes of various sizes and flanges for permanent installation shall be supplied by MOIL. Steel for Wall Brackets will supplied by Company. Fabrication and fixing of clamps, brackets etc., complete with required nuts & bolts, packings etc. will be in the Contractors scope. However any pipes & accessories to be used by the Contractor for the Shaft sinking and allied works shall be within his scope only.
6. All the fabricated steel structures shall be painted with one coat anti corrosive metal primer and two coats of zinc based protective paint after cleaning with sand blast. The supply of all kinds of paints shall be within the Contractor’s scope. The temporary / sinking steel structure for mounting sheave wheel shall be fabricated & painted with one coat of primer & two coats of Aluminum paint shall be within the Contractor’s scope.
7. All steel (except for reinforcement) for fabrication / installation
and furnishing shall be provided by the Company. All materials supplied free of cost and unused including
wastages and scrap should be returned by the Contractor to the Company at the earliest.
8. Cages, Men winding rope & CSG for man / material winding.
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Schedule – “C”
SCHEDULE OF MATERIAL AND FACILITIES TO
BE PROVIDED TO THE CONTRACTOR BY THE
COMPANY AT THE FOLLOWING RATES
Sl.No Items Unit Rate(s)
1 Small dia. Explosives at respective mine magazine
Kg Actual price
2 Electric delay action detonators at respective mine magazine
Each Actual price
3 Medical and Hospital facilities At rates chargeable to non employees.
4 Electrical power to Contractor for all operations at one point.
On MSEDCL actual rates.
5 Canteen facilities At rates chargeable to Company’s employees.
NOTE :
1. The Contractor will submit three months in advance the monthly requirement for all the stores items and quantities proposed to be drawn from the Company.
2. On request from the Contractor, materials in addition to the above mentioned may also be supplied by the Company, at the discretion of Engineer - In- Charge at the cost book value & + 25% extra.
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Schedule – “D”
SCHEDULE OF WAGE ESCALATION
The Wage Escalations with reference to Clause No.- 81.1 shall be as under:
W2 - W1
WE = A x ---------------x VWD
W1
Where :-
WE = Wage Escalation value.
A = Component of Wages in value of work (40% of value of work i.e. 0.40 ).
VWD = Value of work executed during the month under review.
W2 = Gross Wages (Basic + Fixed Dearness Allowances + Variable Dearness Allowance) as per Govt. of India notification issued from time to time for Category-I(Unskilled) underground worker for the month under review.
W1 = Gross wages as per Govt. of India notification issued for Category-I(Unskilled) underground worker as on date of placement of LOA/LOI.
W1 as on ………………… consists of :
Basic Rs.
Fixed Dearness Allowance Rs.
Variable Dearness Allowance Rs.
Item Sr. Nos. of price bid on which wage escalation shall be applicable are as below: I-(a) (b) (c ) (d) (e), II- (a) (b) (c ) (d) (e) (f) (g) (g)(i)(ii)(iii)
(iv)(v), III- (a), IV- (a) (b) (c ) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m)
(n), V- (a) (b) (c ) (d) (e), VI- (a) (b), IX- (a) (b) (c ), X- (a) (b)
(c ), XI- (a) (b) (c ) (d) and XVII- (a) (b) (c ) (d) (e) (f).
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Schedule – “E”
LIST OF DRAWINGS FOR 2ND. VERTICAL SHAFT CHIKLA MINE : Sr.No. Description Drawing No.
1 G.A. Drawing for shaft MOIL/CHK-II/21311 2 Surface plan showing location
of shaft. MOIL/CHK-II/21312
3 Core log data at the location of shaft.
MOIL/CHK-II/21313
4 Sectional view showing ore body and distances of ore body from shaft.
MOIL/CHK-II/21314
5 Shaft Plan MOIL/CHK-II/201077 6 G.A. of Permanent Head gear MOIL/CHK-II/102264 MOIL/CHK-II/000266 MOIL/CHK-II/102598 MOIL/CHK-II/102600 7 G.A. of shaft collar MOIL/CHK-II/300748 8 G.A. of sinking, Lining & Inset
construction. MOIL/CHK-II/102594
9 G.A. for installation of buntons, Guide rails & shaft fittings
MOIL/CHK-II/102595
10 G.A. for sollars & Ladders. MOIL/CHK-II/102597
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SSCCHHEEDDUULLEE ““FF”” SSCCHHEEDDUULLEE OOFF MMAATTEERRIIAALL EESSCCAALLAATTIIOONNSS:: MMaatteerriiaall EEssccaallaattiioonn wwiitthh rreeffeerreennccee ttoo ccllaauussee NNoo.. 8811..22 sshhaallll bbee aass uunnddeerr::
MMEE == BB xx MM22 –– MM11 xx VVWWDD MM11
WWhheerree ::--
MMEE == VVaalluuee ooff MMaatteerriiaall EEssccaallaattiioonn
BB == CCoommppoonneenntt ooff mmaatteerriiaall iinn vvaalluuee ooff wwoorrkk ootthheerr tthhaann
ssuupppplliieedd bbyy tthhee ccoommppaannyy ffrreeee ooff ccoosstt.. ((CCoommppoonneenntt ooff
mmaatteerriiaall iinn tthhee vvaalluuee ooff wwoorrkk iiss 2200%% ii..ee.. 00..2200))
MM11 == IInnddeexx NNuummbbeerr ooff WWhhoolleessaallee PPrriiccee IInnddeexx ((AAllll
CCoommmmooddiittiieess)) aass ppeerr RRBBII BBuulllleettiinn NNoo.. 3388 aass oonn tthhee ddaattee ooff
LLOOII // LLOOAA.. ((BBaassee yyeeaarr--22000044--0055))
MM22 == IInnddeexx NNuummbbeerr ooff WWhhoolleessaallee PPrriiccee IInnddeexx ((AAllll
CCoommmmooddiittiieess)) aass ppeerr RRBBII BBuulllleettiinn NNoo..3388 iinn tthhee llaasstt mmoonntthh ooff
tthhee qquuaarrtteerr uunnddeerr rreevviieeww.. ((BBaassee yyeeaarr--22000044--0055))
VVWWDD == VVaalluuee ooff wwoorrkk eexxeeccuutteedd dduurriinngg tthhee mmoonntthh uunnddeerr
rreevviieeww..
Item Sr. Nos. of price bid on which material escalation shall be applicable are as below: I-(b), II- (g)(ii)(iii)(iv)(v), II- (h), IV- (f) (m), VII, VIII, IX- (a) (b) (c), X-
(a) (b) (c ), XI- (a) (d), XII, XIII, XIV, XVI, XVII- (b) (c ) (f).
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ANNEXURE-III
PROFORMA OF BANK GUARANTEE TOWARDS SECURITY DEPOSIT AND / OR PERFORMANCE GUARANTEE:
( On Non-Judicial of Paper of Appropriate value ) To, The MOIL LIMITED., MOIL Bhawan, 1-A, Katol Road Nagpur 440 013. Maharastra. Dear Sir, Ref : …………………………………………………………….. M/s ……………………………… of …………………………(herein called the Contractor) have taken Tender for the work of …………………………… ……………………………..for MOIL LIMITED, at ………………… …………………….……………………....for …………….……………………… The Tender conditions or Contract provide interalia that the Contractor shall pay you a sum of Rs. …………….. ( Rupees ………….. ) inter alia as security deposit and / or performance guarantee, in the form and manner and subject to the terms there in mention. The form of payment of security deposit and / or performance guarantee includes a guarantee executed on behalf of and at the request of the Contractor to you by Schedule – “A” bank, undertaking full responsibility to indemnify MOIL LIMITED., in case of the default on the part of the Contractor. The said ……………………………………. has approached us and at their request and in consideration of the promises we ……………… having our office at ………………….. have agreed to give such guarantee as is hereinafter mentioned in your favour. 1. We ………………………….. of ……………………………….( hereinafter called the surety) do hereby irrecoverably guarantee to you the due payment of the said sum of Rs. …… ……. By the Contractor to you in terms of the said tender conditions in the Contract and their due performance of the obligations in this behalf and we as a surety undertake and agree with you that if default shall be made by M/s. …………….. … …………………… i.e: the Contractor in performing any of the terms and conditions of the tender and /
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or Contract or in payment of any money payable to you. i.e.: MOIL Ltd., Nagpur, under the said tender / Contract, of which MOIL Ltd., shall be the sole judge, whose decision communicated to us in this regard shall be final and conclusively binding on us and it shall not be open to us to ask you the reason / details in this regard and we shall have no right to question the same or make reference to the Contractor any manner whatsoever. We shall on demand by you pay to you within 3 days from the said demand without any protest or demur and without any reference of any kind whatsoever to the Contractor in such a manner as you may direct the said amount of Rs. …… ………. …………….. Only or such portion thereof of not exceeding the said sum as you may from time to time require or is payable to you by the Contractor for all or any such default and you can look to us as a principal debtor. 2. You will have full liberty with reference to us and without affecting this guarantee, postpone for any time or from time-to-time the exercise of any of the powers and rights conferred on you under the said Contract with the said …….. …….. ………… …..and to enforce or to forebear from enforcing any powers or rights or by reasons of time being given to the said …… ……… ……. …which under law relating to the sureties would but for the provision have the effect of releasing us, any such time / indulgence / forbearance and / or any act or omission or commission on your part will not vitiate us from this guarantee. 3.Your right to recover the said sum of Rs. …… ……… ………( Rupees ….. ………. ………….. ………. …….. …….) from us in manner aforesaid will not be affected or suspended by reason of the fact that any dispute or disputes have been raised by the said M/s. ………….. …………. ……… ………. and / or that any dispute or disputes are pending before any arbitrators / umpire or tribunal or court.
4. The guarantee herein contained shall not be determined or affected by the liquidation or winding up, dissolution or change of constitution or insolvency and the said ….. …….. …….. ………. .. but shall in all respects and for all purposes by binding and operative until full payment of all money due to you in respect of such liability or liabilities is received by you as if this is a continuing guarantee to secure your ultimate dues in the premise. 5. We have the power to issue this guarantee in your favour under memorandum and articles of association and the
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undersigned has full powers to issue the same under the power of attorney dated …………. granted to him by the bank. 6.We will have no right to subrogation against the Contractor unless all your dues as aforesaid are paid in full. We do hereby waive our rights to surety-ship, which are inconsistent with all or any provisions hereof. 7.You will be at liberty to alter the terms of the said Tender conditions / Contract and / or to take any other security / guarantee / Promissory note from the Contractor or others which will not affect / vitiate / discharge us from this guarantee.
8.This guarantee will bind our successors and assignee’s and your successors and assignee’s and will remain operative irrespective of any change in the constitution of our bank and / or the Contractor. 9. Our liability under this guarantee is restricted to Rs. ……… …….and this guarantee shall remain in force until …..………. . Unless a claim / suit or action to enforce this guarantee is filed against us within one year from …… …… ……. ……. .. (which is date of expiry of guarantee) all your rights under said guarantee shall be forfeited and we shall be relieved and discharged from all liabilities there under.
Yours faithfully,
………………… Bank
By its constituted attorney.
Signature of a person duly authorised to sign on behalf of the bank.
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ANNEXURE-IV
AGREEMENT FORMAT (ON 100 RUPEES BOND PAPER)
This Agreement is made on ………………………………… ….. …… ………….. ……. One between M/s MOIL LIMITED., ( A Government of India undertaking.) incorporated under the Company’s act 1956 and having its registered office at MOIL Bhawan, 1-A, Katol Road, Nagpur – 440 013 (Maharastra ) acting through the Executive Director (Technical), MOIL herein called “The Company “ which expression shall unless repugnant to the subject or context includes its successors, or assigns on one part and M/s. ……………………………………………………………………………… herein called “The Contractor” which expression shall unless repugnant to the subject or the context, include its administrators, successors, assignee, legal representative on the other part. WHEREAS, the Company being desirous of works of Sinking, Lining, Equipping and Furnishing of a Vertical shaft, Circular in shape, 4.50 mtrs. Finished Diameter, 160 mtrs. Depth together with Erection of Head gear and Design, Supply, Erection & commissioning of a 250H.P. A.C./D.C. Winder at Chikla Mine, to be executed, invited the offer vide Notice Inviting Tender No. ……… ……………. ……………………………………………… WHEREAS, the Contractor’s submitted offer in form Part - I ( Terms and Conditions and Part - II ( Price offer ) and was opened on ………….… (Part – I) and on …………….. ( Part – II ) respectively and the Company and the Contractor had held discussions, obtained clarifications, held negotiations and Company requested the Contractor to submit revised offer and confirmations thereof . And WHEREAS, the revised offers were opened on ….. ……. ….. ……. And subsequently Company obtained clarifications, modifications and confirmations, accepted the revised offer vide letter No. ………………….….dated ………… including modifications agreed upon. And WHEREAS, the Company issued “Letter Of Intent”/ “Letter of Acceptance” to the Contractor vide letter No. …….. ……………. dated ………. and subsequently issued “Work Order” vide letter No. ………………. dated ………. (hereinafter to as “WO”) requesting the Contractor to enter into an agreement to execute the work of Sinking, Lining, Equipping and Furnishing of a Vertical shaft, Circular in shape, 4.50 mtrs. Finished Diameter, 160 mtrs. Depth together with Erection of Head gear and Design, Supply, Erection &
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commissioning of a 250H.P. A.C./D.C. Winder at Chikla Mine, on the Terms and Conditions hereinafter enumerated. NOW THIS AGREEMENT IS WITNESSED AND IT IS HEREBY AGREED BY AND BETWEEN PARTIES HERE TO AS FOLLOWS: The Company and the Contractor agrees and declare that this agreement shall govern the terms and conditions of the Contract in relation to and in respect of Sinking, Lining, Equipping and Furnishing of a Vertical shaft, Circular in shape, 4.50 mtrs. Finished Diameter, 160 mtrs. Depth together with Erection of Head gear and Design, Supply, Erection & commissioning of a 250H.P. A.C./D.C. Winder at Chikla Mine, work is awarded under this Contract and shall be deemed to be final agreement between the parties here to:
1. In this agreement, words and expressions shall have the same meaning as are respectively assigned to them in the conditions of Notice Inviting Tender Document hereinafter referred to.
2. It is specifically distinctly and expressly understood and
agreed between the parties hereto that except as provided hereinafter and to the extent varied, modified and altered by subsequent correspondence and conditions, schedules appended to the work order, the work shall be executed on the terms and conditions as stated in the NIT document. In the event of any doubt (s) regarding terms and conditions as stated in work order, other documents such as Contractor’s offer etc., as listed in article –3 below shall be referred to. A document of later dates shall always supersede all previous documents.
3. The following Contract documents only shall be deemed to
constitute and be read as a part of the agreement. Every other document / negotiation or agreement shall be null and void.
3.1 Company’s work order No. …. …….. ….. ………….. dated
………. ..and job no. along with its Schedule “A”, “B”, “C”, “D” and “E”.
3.2 Company’s Notice Inviting Tender Document ( N.I.T.
document ) No…. ……. ……. …dated …… ….. ….. consisting of following including all clauses sub-clauses and Annexure therein.
a. Tender Notice. b. Tender Form c. Chapter – I. General Conditions.
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d. Chapter – II . Technical Conditions.
e. Chapter – III Legal Conditions. f. Chapter – IV Financial
Conditions. g. Chapter – V Scope of work and special
conditions. h. Schedule–A,B,C,D and E. i. Annexure – I j. Annexure – II
3.3 Contractor’s original offer, Company’s correspondence, Contractor’s revised offer, negotiations, clarifications and conformations as given below :-
a. ……………………………………..… b. …….. ………… ……… c. ……….
…………………………………. .. d. ………… ………………… e. ……………………………………….
4.0 In consideration of the payments to be made by the Company to the Contractor as per the terms of the agreement the Contractor hereby, covenants with the Company to execute and complete the works awarded in conformity with the provisions of the said agreement.
5.0 The Company hereby covenants to pay the Contractor, in
consideration of the execution and completion of the works awarded under the said agreement and in the manner prescribed by the said agreement and also subject to the terms thereof. In witness whereof the parties hereto, have set there respective hands, the day, the month and the year, first above written in the presence of the witness named hereunder at MOIL LIMITED., Nagpur, Maharastra. Signed Sealed and Delivered by :-
( …………..…... ) (………………..) Contractor For MOIL LIMITED,
Witness:
1. ……………….. 2. ………………..
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LETTER WITH TENDER To, The Executive Director (Technical), MOIL LIMITED, MOIL Bhawan, 1-A, Katol Road, Nagpur - 440013 (Maharastra). Dear Sir, Sub: Tender for Sinking, Lining, Equipping and Furnishing of a
Vertical shaft, Circular in shape, 4.50 mtrs. Finished Diameter, 160 mtrs. Depth together with Erection of Head gear and Design, Supply, Erection & commissioning of a 250H.P. A.C./D.C. Winder at Chikla Mine,
I / We offer to execute the works of Sinking, Lining, Equipping and Furnishing of a Vertical shaft, Circular in shape, 4.50 mtrs. Finished Diameter, 160 mtrs. Depth together with Erection of Head gear and Design, Supply, Erection & commissioning of a 250H.P. A.C./D.C. Winder at Chikla Mine, indicated in the Tender Notice at the rates quoted and hereby bind myself / ourselves to complete the work as per completion time stipulated in the Tender Notice.
I / We . …… ……….. ………………. …………... .. . ……………. have read all the conditions of N.I.T. attached hereto and agreed to abide by such conditions. I / We bind myself / ourselves to furnish the required security deposit within two weeks and execute an agreement in the Proforma of Company and commence the work in one month of acceptance of the Tender by the Company failing which, I / We shall have no objection to forfeiture of the earnest money amount of Rs. ……. .. . .. …… ( Rupees … ………. ………. .. ) deposited with the Company. Contractor’s Address: Signature of Contractor Date : …… ………….
Signature of Witness. a. ………….. …………. b. ……………………….
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PART I (D) FACILITIES TO THE CONTRACTOR:
1. WATER SUPPLY: The contractor will have to make his own
arrangement for supply of water to the work site, including that required for dust suppression on haul roads. All pumping installation/pipelines net works, as and when required will have to be carried out by the contractor at his own cost.
Alternatively the Company at its discretion, may endeavor to provide water to the Contractor at the Co.'s source of supply, from where he shall arrange for its transportation to places of use, with the prior approval of the Mine manager.
However, the Company does not guarantee the supply of water and this shall not relieve the contractor of his responsibility for making his own arrangement and for timely completion of the work as stipulated in the schedule.
2. POWER SUPPLY : The Company will supply power at one
common point, from where the contractor will make his own arrangement for temporary distribution. The contractor shall also provide suitable electric meter, fuses, safety appliances, switches etc. in lieu of the power so consumed, at his own cost. These shall be under the custody and control of the Company. The cost of the power supply shall be payable to the Company, every month, at such rates, as fixed by the Company, from time to time, and would be deducted from the running bills of the Contractor.
The Company does not however guarantee the supply of electricity and no compensation for any failure of short supply of electricity will be entertained and this shall not relieve the Contractor of his responsibility for providing the needed power supply and for timely completion of the work, as stipulated in the contract.
Arrangement for adequate safety and lighting, at the work site shall also be made by Contractor.
3. PLACES FOR OFFICE, STORES ETC.
The contractor shall have to make his own arrangement, in respect of his office, stores, workshop, residential accommodation etc. for his supervision /managerial staff etc. The mine manager may render necessary assistance in this regard, to the extent possible, subject to availability, on payment basis.
4. SUPPLY OF STORES MATERIALS/FUEL AND LUBRICANTS
/ EXPLOSIVES/ CONSUMABLES a) Normally no stores / F.O.L. etc. shall be supplied to the
Contractor. However, these may be provided by the Company
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on charge basis, subject to availability, if so requested, in writing, by the contractor from time to time. Such a charge will normally be "Actual cost of MOIL store + 25 % administrative and handling charges". But inability to provide the same by the Company shall not be a construed as a reason in non completion of the work, as per schedule.
b) Where blasting is carried out by the Company, no deduction shall be made on account of the cost of explosives and blasting accessories.
5. HAUL ROAD MAINTENANCE :
The contractor shall be responsible for the proper maintenance of the haul roads, used by him for the dumping of waste rock debris. If at any time it is found that the roads are not maintained in a proper condition the MOIL Management may undertake to do so on its own or get it done from an external agency, subject to recovery of all such costs from the contractor.
For and on behalf of MOIL LIMITED
(Authorised signatory)
Signature of the Contractor (or his authorised representative)
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Annexure-V
UNDERTAKING FOR COMPLIANCE OF ADHAR NUMBER I /We / M/s (Name of contractor)--------------------------, the proprietor / owner / partner / Director of the firm / Company (Name of the firm / company)-------------------------------- do hereby confirm that after the award of the work in our favour against the subject NIT, we will mandatorily implement / observe and follow that while employing the labours / employees for the awarded work of the work order against the NIT No.-------------------------- Date---------------- , we will give preference to those employees who either have Adhar Number or have applied for Adhar Card or have agreed to apply for Adhar Card, so as to establish their genuineness and enable payments directly through Adhar Payment Bridge. I /We / am / are aware that non-submission of this undertaking will result in rejection of my offer. Further the company will be at liberty to take appropriate action including suspension of work of the contractor / termination of the contract at any stage of the work in the event of non-compliance with the NIT condition.
Signature
Name of the tenderer / firm
Seal
Date
139
Annexure-VI
FORMAT FOR BANK GUARANTEE FOR EARNEST MONEY
DEPOSIT (EMD)
WHEREAS, __________________ (Name of the Tenderer) (hereinafter called “the Tenderer”) has submitted his tender dated _________________________ (date) for “SINKING OF A VERTICAL SHAFT,ERECTION OF HEADGEAR,DESIGN, SUPPLY, ERECTION & COMMISSIONING OF A 250H.P. A.C./D.C.WINDER AT CHIKLA MINE.” (hereinafter called “the Tender”). KNOW ALL PEOPLE by these presents that We _________________________(Name of bank) of _________ ____________ _____ (Name of country) having our registered office at _______________________ __________ (hereinafter called “the Bank”) are bound unto __________________ [Name of Employer] (hereinafter called “the Employer”) In the sum of ________*___________ for which payment well and truly to be made to the said Employer the Bank binds itself, his successors and assigns by these presents. SEALED with the Seal of the said Bank this ______ day of _______ 20_______ THE CONDITIONS of this obligation are: (1) If after Tender opening the Tenderer withdraws his Tender during the period of tender validity specified in the tender document: Or (2) If the Tenderer having been notified of the acceptance of his tender by the Employer during the period of tender validity: (a) fails or refuses to execute the Form of Agreement in accordance with the Instructions to Tenderers, if required; or (b) fails or refuses to furnish the Security Deposit, in accordance with the General Conditions of Contract, or (c) does not accept the correction of the Bid Price, if required; We undertake to pay to the Employer up to the above amount upon receipt of his first written demand, without the Employer having to substantiate his demand, provided that in his demand the Employer will note that the amount claimed by him is due to him owing to the occurrence of one or any of the three conditions, specifying the occurred condition or conditions. This Guarantee will remain in force up to and including the date
140
_____#_____ days after the deadline for submission of tender as such deadline is stated in the Instructions to Tenderers or as it may be extended by the Employer, notice of which extension(s) to the Bank is hereby waived. Any demand in respect of this Guarantee should reach the Bank not later than the above date. DATE______________ SIGNATURE OF THE BANK _________________ WITNESS : SEAL ___________________________ ___________________________ ____________________________ [Signature, Name & Address ] * The Tenderer should insert the amount of the guarantee in words and figures denominated in Indian Rupees. This figure should be as shown in Clause 13-(h) of Part-I-B of the Tender document. # 30 days after the end of the validity period of the tender. Date should be inserted by the Employer before the tender documents are issued.
141
Annexure-VII Joint Venture Company: Tendering by a joint venture of the contractors is permissible subject to following conditions. Each member / entity of the joint venture company will be responsible for completing the task as per the contract. The joint venture company shall have been formed prior to the tendering. Joint Venture Company shall comply with the following: 1) Documentary evidence of formation of the joint venture company
must be provided with the tender. 2) The tender shall include all the information regarding capability,
experience as required for a tenderer for each partner. For the purpose of eligibility criteria, credentials of the members of a joint venture company will be considered collectively.
3) A party can be a member in only one Joint Venture company. Tenders submitted by Joint Venture companies including the same party as member will be rejected.
4) Separate tender by a member of a Joint Venture company will not be accepted.
Consortium: A consortium (of maximum two members) may also along with copy of satisfactory performance report issued by the customer, submit tenders. Either of the members or combination of members together should meet the above eligibility criteria. In case successful tenderer is a consortium, all consortium members shall be required to be signatories to the contract. Additionally, the consortium shall comply with the following requirements 1) A copy of the memorandum of understanding (MOU) entered into
by the consortium members shall be submitted with the tender containing division of work and the required information of each member. Their joint and several responsibilities, which shall be followed by a firm agreement on becoming a successful tenderer is to be submitted along with security deposit
2) The consortium members, amongst them, will select the leader of the consortium, known as “Lead Member”. The consortium member who will undertake more than 50% of the value of this work as per MOU between the consortium partners shall be the lead member of the consortium. Authorization in favour of the leader of the consortium shall be evidenced by a power of attorney signed by legally authorized signatories of each consortium member, submitted with the tender. The MOU shall include a brief description of the role and responsibilities of individual members, particularly with reference to technical and financial obligations.
3) The leader shall be authorized to incur liabilities and receive instruction for and on behalf of any or all members of the
142
consortium and the entire execution of contract, including payment shall be done exclusively with the leader
4) Leader of the consortium shall be overall responsible for the
execution of the Contract not only for its scope of work but also for the scope of work of other Consortium members so that the Employer gets the facilities completed in all respects. The Leader and other members of the Consortium shall be jointly and severally responsible for execution of the Contract but will be liable in respective portions of the scope of work.
5) The tender shall include all the information regarding capability
and experience, as required for a tenderer, for each consortium member.
6) One party can be a member in only one consortium. Tenders submitted by consortiums having a party or parties as common member(s) will be rejected.
7) Separate tender by a member of any consortium will not be accepted
8) A copy of the Memorandum of Understanding (MoU) entered into
by the consortium members prior to stipulated due date of submission of bids and valid till Time for Completion plus performance Liability Period for the Facilities shall be submitted. The MoU shall clearly outline the proposed roles & responsibilities of each member. Each member of consortium must have the experience for the component of the contract that they are designated to perform. Failure to comply with this requirement may result in rejection of the Consortium‘s bid.
9) For the purpose of formation of consortium, a member shall be an independent and single legal entity as per laws of India and should have its own independent financial accounting system as per laws of India .
10) Bidders shall give a break-up of the prices, as may be applicable to their bids, in the manner and detail given in Price Schedule. In case of consortium, the Bidder shall give breakup of prices including taxes & duties for each consortium member corresponding to work division to be undertaken by each member. However this will not absolve the members of the consortium from their responsibilities as mentioned above.
143
11) In the case of a consortium becoming the Successful Bidder, all the members of the consortium shall be signatories to the Contract.
12) In case, the Contractor is a Consortium, the Employer shall
recover the amount of Liquidated Damages, but not by way of penalty, by making deductions from the bill raised by the Consortium, or, as a last resort, by encashment of their Bank Guarantees as per above clause, subject to a maximum of 10% of the Contract Price, if any, paid or payable to the Contractor excluding taxes and duties of the respective scope of facilities.
13) In case of Consortium, the notarized Memorandum of
Understanding (MOU) between / amongst Consortium members shall be furnished along with Part-I of bid duly signed by all Consortium members and lead member of authorized signatory.
14) Employer shall arrange progress review meeting periodically (not exceeding 3 months) to monitor the progress of the work. It will be mandatory on the part of the Leader of the Consortium to attend such meetings with their Consortium Members
---------X ------
144
TENDER FOR SINKING OF A VERTICAL SHAFT,ERECTION OF HEADGEAR,DESIGN, SUPPLY, ERECTION & COMMISSIONING
OF A 250H.P. (Min.)A.C./D.C.WINDER AT
CHIKLA MINE
PART II – PRICE BID
MOIL LIMITED
MOIL BHAWAN, 1-A, KATOL ROAD, NAGPUR – 440013
145
PART –II PRICE BID SCOPE AND SCHEDULE OF WORK- SINKING OF A VERTICAL SHAFT,ERECTION OF HEADGEAR,DESIGN, SUPPLY, ERECTION & COMMISSIONING OF A 250H.P.(Min.) A.C./ D.C.WINDER AT CHIKLA MINE.
Sr. No.
DESCRIPTION OF WORK UNIT
OF WORK
QTY. RATE (Rs.)
Amount (Rs.)
VAT / CST
Service Tax
Any other
Tax/Duty
Total Amount
with taxes & duties
(Rs.) I
a)
PREPARATORY WORKS. ( Mining ) SHAFT COLLAR CONSTRUCTION Excavation of Alluvium and mixed soil from 267.6 MRL to 262 MRL (cutting, shuttering, pumping as per drawing soft rock)
m³
350
b) Reinforced cement concrete of grade M-20 ( In conformity with IS: 456:1978) 1:2:4 ratio, deploying there at necessary moveable shutters, concrete mixtures, pumping arrangements and other safety device. Reinforcement @ 110 Kg / M³ 269.2 MRL to 262.
m³ 68
c) EEaarrtthh ccuuttttiinngg ffoorr SSiinnkkiinngg WWiinnddeerr FFoouunnddaattiioonn (( LLoooossee)) m³ 30 d) EEaarrtthh ccuuttttiinngg ffoorr SSccaaffffoolldd WWiinncchh FFoouunnddaattiioonn (( LLoooossee)) m³ 8 e) EEaarrtthh ccuuttttiinngg ffoorr EElleeccttrriiccaall WWiinncchh FFoouunnddaattiioonn.. ((LLoooossee)) m³ 8
146
Sr. No.
DESCRIPTION OF WORK UNIT
OF WORK
QTY. RATE (Rs.)
Amount (Rs.)
VAT / CST
Service Tax
Any other
Tax/Duty
Total Amount
with taxes & duties
(Rs.) II (a)
PREPARATORY WORKS. ( Mechanical ) Providing, Installation, Operation & Maintenance of sinking winder (Winder will be supplied by contractor along with complete accessories, DGMS approved, sheave wheel, platform, suspension gear, rope cappel, suitable wire rope & other safety devices)
Lot
1
((bb)) FFaabbrriiccaattiioonn aanndd IInnssttaallllaattiioonn ooff SSiinnkkiinngg HHeeaadd GGeeaarr wwiitthh SShheeaavvee WWhheeeell -- SStteeeell wwiillll bbee ssuupppplliieedd bbyy MMOOIILL..
Lot 1
((cc)) PPrroovviiddiinngg && IInnssttaallllaattiioonn ooff EElleeccttrriicc wwiinncchheess 1100 TToonnnneess ffoorr SSccaaffffoolldd wwiitthh SShheeaavvee wwhheeeellss..
Lot 1
((dd)) FFaabbrriiccaattiioonn aanndd IInnssttaallllaattiioonn ooff SSccaaffffoolldd aass ppeerr ddrraawwiinngg ttoo bbee ssuupppplliieedd bbyy CCoonnttrraaccttoorr ((SStteeeell wwiillll bbee ssuupppplliieedd bbyy ccoommppaannyy))..
Lot 1
((ee)) CCoovveerriinngg ooff sshhaafftt ccoollllaarr wwiitthh 66mmmm cchheeqquueerreedd ppllaattee,, ppnneeuummaattiicc ooppeerraatteedd ddoooorr ffoorr ppaassssaaggee ooff ssiinnkkiinngg bbuucckkeett.. ((SStteeeell wwiillll bbee ssuupppplliieedd bbyy ccoommppaannyy)) ..
Lot 1
((ff)) FFaabbrriiccaattiioonn aanndd IInnssttaallllaattiioonn ooff LLaauunnddeerr // DDuummppiinngg aarrrraannggeemmeenntt aatt TToopp ooff tthhee sshhaafftt.. ((SStteeeell wwiillll bbee ssuupppplliieedd bbyy ccoommppaannyy))..
Lot 1
((gg))
FFaabbrriiccaattiioonn aanndd iinnssttaallllaattiioonn ooff ppeerrmmaanneenntt HHeeaadd GGeeaarr IInncclluuddiinngg IInnssttaallllaattiioonn ooff 22 NNooss.. HHeeaadd--ggeeaarr sshheeaavveess ooff 33..66 MMttrr.. DDiiaammeetteerr eeaacchh..((SStteeeell && ddrraawwiinngg ooff HHeeaadd ggeeaarr wwiillll bbee ssuupppplliieedd bbyy MMOOIILL))..
M.T. 85
((ii)) HHeeaadd--ffrraammee FFoouunnddaattiioonn EExxccaavvaattiioonn aass ppeerr DDrrgg.. NNoo.. MMOOIILL//CCHHKK--IIII//110022559999 && MMOOIILL//CCHHKK--IIII//110022660011
m³ 205
147
Sr. No.
DESCRIPTION OF WORK UNIT
OF WORK
QTY. RATE (Rs.)
Amount (Rs.)
VAT / CST
Service Tax
Any other
Tax/Duty
Total Amount
with taxes & duties
(Rs.) iiii))
HHeeaadd--ffrraammee FFoouunnddaattiioonn RRCCCC ooff MM2200 aass ppeerr DDrrgg.. NNoo.. MMOOIILL//CCHHKK--IIII//110022559999 && MMOOIILL//CCHHKK--IIII//110022660011
m³ 103
((iiiiii)) HHeeaadd--ffrraammee FFoouunnddaattiioonn PPCCCC ooff MM1100 aass ppeerr DDrrgg.. NNoo.. MMOOIILL//CCHHKK--IIII//110022559999 && MMOOIILL//CCHHKK--IIII//110022660011
m³ 11
((iivv)) SStteeeell rreeiinnffoorrcceemmeenntt ((TTOORR FFee 441155 )) ffoorr BBaacckkssttaayy FFoouunnddaattiioonn..(( DDrrgg.. NNoo..MMOOIILL//CCHHKK--IIII//110022660011 ))
M.T. 2.2
((vv)) SStteeeell rreeiinnffoorrcceemmeenntt ((TTOORR FFee 441155 )) ffoorr HHeeaaddffrraammee FFoouunnddaattiioonn..(( DDrrgg.. NNoo.. MMOOIILL// CCHHKK--IIII// 110022559999 ))
M.T. 1.2
((hh)) SSuuppppllyy aanndd iinnssttaallllaattiioonn ooff 33..66 mmeetteerr ddiiaammeetteerr SShheeaavvee WWhheeeellss GGrroooovvee ssuuiittaabbllee ffoorr 2299 mmmm LLoocckkeedd ccooiill rrooppee CCoonnffoorrmmiinngg ttoo IISS 99223399 //11999999..
Nos. 3
III
a)
SHAFT SINKING AND ALLIED EXCAVATIONS. Excavation of shaft below 262 MRL to 108 MRL, 154 mtrs. vertical depth excavated Diameter: 5.10 mtrs
m³
3250
IV
a)
INSET EXCAVATIONS. (as per drawing supplied by MOIL) At 235.5 MRL Level -70 ft Level
m³
390
((bb)) AAtt 220055..55 MMRRLL LLeevveell --117700 fftt LLeevveell m³ 390 ((cc)) AAtt 117755..55 MMRRLL LLeevveell --227700 fftt LLeevveell m³ 390 ((dd)) AAtt 114455..55 MMRRLL LLeevveell --337700 fftt LLeevveell m³ 390 ((ee)) AAtt 111155..55 MMRRLL LLeevveell --447700 fftt.. LLeevveell m³ 390 ((ff)) RRCCCC ccoonnccrreettiinngg aatt 111155..55 MMRRLL m³ 70 ((gg))
OOrree ppaassss ffrroomm 223355..55 MMRRLL ttoo 111155..55 MMRRLL ii..ee.. bbeettwweeeenn --7700 fftt LLeevveell ttoo --447700 fftt LLeevveell (( 112200 MMttrrss..)) ssiizzee 33 mmttrrss DDiiaa..
m³ 850
148
Sr. No.
DESCRIPTION OF WORK UNIT
OF WORK
QTY. RATE (Rs.)
Amount (Rs.)
VAT / CST
Service Tax
Any other
Tax/Duty
Total Amount
with taxes & duties
(Rs.) ((hh)) AAtt CCrroossss ccuutt aatt --7700'' LLeevveell 223355..55 MMRRLL 44..55 xx22..7755 mmttrrss m³ 309 ((ii)) AAtt CCrroossss ccuutt aatt --117700 '' LLeevveell 220055..55 MMRRLL 44..55 xx22..7755 mmttrrss m³ 242 ((jj)) AAtt CCrroossss ccuutt aatt --227700'' LLeevveell 117755..55 MMRRLL 44..55 xx22..7755 mmttrrss m³ 242 ((kk)) AAtt CCrroossss ccuutt aatt --337700'' LLeevveell 114455..55 MMRRLL 44..55 xx22..7755 mmttrrss m³ 185 ((ll)) AAtt CCrroossss ccuutt aatt --447700'' LLeevveell 111155..55 MMRRLL 44..55 xx22..7755 mmttrrss m³ 185
((mm)) RRCCCC ccoonnccrreettiinngg aass aanndd wwhheenn rreeqquuiirreedd iinn XX--ccuutt m³ 200
((nn)) SSuummpp && ppuummpp rroooomm aatt --337700'' LLeevveell && --447700'' lleevveell,,770000 CCmmtt,,&& 660000 CCmmtt rreessppeeccttiivveellyy..
m³ 1300
V
a)
SSHHAAFFTT AANNDD IINNSSEETT FFUURRNNIISSHHIINNGG FFaabbrriiccaattiioonn,, LLoowweerr,, SSeett && IInnssttaallll BBuunnttoonnss && GGrroouutt -- SStteeeell JJooiissttss ffoorr KKeeppss aanndd ootthheerr SStteeeell FFuurrnniisshhiinngg ((SStteeeell wwiillll bbee ssuupppplliieedd bbyy MMOOIILL))..
M.T.
33.8
((bb)) LLoowweerr,, SSeett && IInnssttaallll PPllaattffoorrmm && LLaaddddeerrss ffrroomm PPiitt TToopp ttoo PPiitt bboottttoomm iinncclluuddiinngg FFeenncciinngg eettcc.. ((SStteeeell wwiillll bbee ssuupppplliieedd bbyy MMOOIILL))..
M.T. 26.56
((cc)) LLoowweerr ,, SSeett && IInnssttaallll 9900 llbbss//yydd GGuuiiddee RRaaiillss iinn SShhaafftt ((GGuuiiddee RRaaiillss wwiillll bbee ssuupppplliieedd bbyy MMOOIILL))
M.T. 37
149
Sr. No.
DESCRIPTION OF WORK UNIT
OF WORK
QTY. RATE (Rs.)
Amount (Rs.)
VAT / CST
Service Tax
Any other
Tax/Duty
Total Amount
with taxes & duties
(Rs.)
((dd))
IInnssttaallllaattiioonn ooff eelleeccttrriiccaall ccaabblleess iinn tthhee sshhaafftt aanndd lleevveellss ttoo bbee pprrooppeerrllyy sseeccuurreedd oonn ggoooodd WWooooddeenn bblloocckkss,, ccaabbllee ccllaammppss,, wwaallll bbrraacckkeettss,, eettcc..,, ((EElleeccttrriiccaall CCaabbllee wwiillll bbee ssuupppplliieedd bbyy MMOOIILL)) ((11)) PPoowweerr ccaabbllee 224400 ssqq.. mmmm ((22 nnooss ))
Mtr.
320
((22)) SSiiggnnaalliinngg ccaabbllee ((22 NNoo..)) 2200 PPaaiirrss Mtr. 350 ((33)) TTeelleepphhoonnee ccaabbllee ((11 NNoo..)) 1100 PPaaiirrss.. Mtr. 175
((ee))
LLoowweerr && IInnssttaallll ppiippee rraannggee aanndd ppiippee ffllaannggeess ccoommpplleettee wwiitthh ffiittttiinnggss && ccllaammppss iinn sshhaafftt ((SStteeeell ppiippeess && ffiittttiinnggss wwiillll bbee ssuupppplliieedd bbyy MMOOIILL,, ootthheerr iitteemmss bbyy CCoonnttrraaccttoorr)) ((11)) 220000 mmmm DDiiaa.. (( 11 NNoo.. ))
Mtr.
175
((22)) 115500 mmmm DDiiaa.. ((22 NNoo..)) Mtr. 350 ((33)) 110000 mmmm DDiiaa.. (( 22 NNooss..)) Mtr. 350
VVII
((aa))
FFaabbrriiccaattiioonn ooff aallll sstteeeell ssttrruuccttuurreess ffoorr ffuurrnniisshhiinngg && eeqquuiippppiinngg tthhee sshhaafftt aanndd IInnsseett wwiitthh oonnee ccooaatt ooff pprriimmeerr ttwwoo ccooaattss ooff pprrootteeccttiivvee ppaaiinnttss.. ((11)) OOtthheerr sstteeeell ffaabbrriiccaattiioonn ((UUpprriigghhttss,, GGuuiiddee ssuuppppoorrtt,, SSttrriippss,, FFeenncceess,, BBrraacckkeettss ffoorr ppiippeess,, aanndd IInnsseett ggaatteess eettcc..)) ((SStteeeell wwiillll bbee ssuupppplliieedd bbyy MMOOIILL))
M.T.
7.6
150
Sr. No.
DESCRIPTION OF WORK UNIT
OF WORK
QTY. RATE (Rs.)
Amount (Rs.)
VAT / CST
Service Tax
Any other
Tax/Duty
Total Amount
with taxes & duties
(Rs.)
((bb))
((22)) LLoowweerr,, sseett aanndd IInnssttaallll CCaaggee ((CCaaggee wwiillll bbee ssuupppplliieedd bbyy MMOOIILL)) ** AAllll ccaabbllee ccllaammppss ttoo bbee iinnssttaalllleedd aatt 66 mmttrrss.. iinntteerrvvaallss.. ** WWooooddeenn bblloocckkss ffoorr ccaabbllee ccllaammppss && iittss mmaacchhiinniinngg wwiillll bbee pprroovviiddeedd bbyy ccoonnttrraaccttoorr..
Set 2
VVIIII SSuuppppllyy && IInnssttaallllaattiioonn ooff KKEEPPSS AAtt PPiitt ttoopp && FFiivvee IInnsseettss iinn uunnddeerrggrroouunndd aanndd ssuurrffaaccee ((oonnee sseett ccoommpprriisseess ooff 44 ppaaiirrss ffoorr ttwwoo ccaaggeess))
Sets 6
VVIIIIII SSuuppppllyy && IInnssttaallllaattiioonn ooff OOppeerraattoorr’’ss CCaabbiinn wwiitthh 11 TTRR wwiinnddooww ttyyppee aaiirr ccoonnddiittiioonneerr
Nos. 1
IIXX RR..CC..CC && PP..CC..CC WWOORRKKSS PPRREEPPAARRAATTOORRYY WWOORRKKSS ((RR..CC..CC..))
((aa)) FFoouunnddaattiioonn ccoonnccrreettee ffoorr PPnneeuummaattiicc // EElleeccttrriiccaall wwiinncchheess @@ 7755 KKgg//MM³³ bbeennddiinngg && bbiinnddiinngg..
m³ 12
((bb)) FFoouunnddaattiioonn ccoonnccrreettee ffoorr SSccaaffffoolldd wwiinncchheess @@7755 KKgg//MM³³ bbeennddiinngg && bbiinnddiinngg..
m³ 8
((cc )) FFoouunnddaattiioonn ccoonnccrreettee ffoorr SSiinnkkiinngg WWiinnddeerr @@7755 KKgg//MM³³ bbeennddiinngg && bbiinnddiinngg..
m³ 30
XX SSHHAAFFTT LLIINNIINNGG AANNDD IINNSSEETT CCOONNCCRREETTIINNGG
((aa)) PPrroovviiddee mmaatteerriiaall mmiixx aanndd ppllaaccee 330000 mmmm tthhiicckk PPCCCC ccoonnccrreettee lliinniinngg ooff MM--2200 aatt sshhaafftt wwaallllss 115544 mmttrrss vveerrttiiccaall ddeepptthh @@ 44..5533 ccuu.. mmttrrss ppeerr RRMMTT 226622 MMRRLL ttoo 110088 MMRRLL
m³ 721
151
Sr. No.
DESCRIPTION OF WORK UNIT
OF WORK
QTY. RATE (Rs.)
Amount (Rs.)
VAT / CST
Service Tax
Any other
Tax/Duty
Total Amount
with taxes & duties
(Rs.)
((bb)) PPrroovviiddee mmaatteerriiaall mmiixx aanndd ppllaaccee RRCCCC ccoonnccrreettiinngg ooff GGrraaddee MM--2200 aatt ,, SShhaafftt IInn--sseett aanndd bbyyee--ppaassss aanndd 55 NNooss.. WWaatteerr GGaarrllaanndd 22 MMttrrss.. aabboovvee eeaacchh IInn--sseett..
m³ 500
(( cc )) IISSMMBB 220000 xx 110000 ffoorr IInnsseett ccoonnccrreettiinngg.. M.T. 10 XXII
PPIITT TTOOPP AANNDD BBOOTTTTOOMM LLAAYYOOUUTT FFOORR OORREE HHOOIISSTTIINNGG MMIINNEE CCAARR CCIIRRCCUUIITT
aa
LLooaaddiinngg SSttaattiioonn ,, iinncclluuddiinngg eexxccaavvaattiioonn,, RRCCCC,, PP..CC..CC.. && ootthheerr aalllliieedd wwoorrkkss aatt 111155..55 MMRRLL ((UUnnddeerr GGrroouunndd)) ((AAss ppeerr DDrraawwiinngg ttoo bbee ssuupppplliieedd bbyy CCoonnttrraaccttoorr aanndd oonn aapppprroovvaall ooff MMOOIILL))..
Lot 1
bb
PPiitt TToopp aarrrraannggeemmeenntt ffoorr mmiinnee ccaarr sshhuunntt bbaacckk,, hhaanndd ooppeerraatteedd aarrrraannggeemmeennttss iinncclluuddiinngg hhaanndd ooppeerraatteedd sswwiittcchheess,, ccrreeeeppeerrss,, wwiinncchh,, ttrraacckk llaayy oouutt,, rreettaaiinniinngg wwaallll,, eettcc .. ((OOnnllyy RRaaiillss wwiillll bbee ssuupppplliieedd bbyy MMOOIILL))..
Lot 1
cc DDeessiiggnn,, FFaabbrriiccaattiioonn aanndd IInnssttaallllaattiioonn ooff sstteeeell BBuunnkkeerr 110000 TToonnnneess ccaappaacciittyy wwiitthh ddiisscchhaarrggee ggaattee,, aatt ssuurrffaaccee -- ((DDrraawwiinngg sshhaallll bbee ssuupppplliieedd bbyy CCoonnttrraaccttoorr && aapppprroovveedd bbyy MMOOIILL))..
Lot 1
dd DDeessiiggnn,, SSuuppppllyy && IInnssttaallllaattiioonn ooff TTuubb TTiipppplleerr aarrrraannggeemmeenntt aatt ssuurrffaaccee.. DDeessiiggnn ttoo bbee ssuupppplliieedd bbyy tthhee CCoonnttrraaccttoorr aanndd aapppprroovveedd bbyy MMOOIILL..
Lot 1
XXIIII SSuuppppllyy && IInnssttaallllaattiioonn ooff PPiitt BBoottttoomm BBuuffffeerrss,, iinnccoorrppoorraattiinngg tthhee rreeqquuiirreemmeennttss ooff MMMMRR && DDGGMMSS’’ss llaatteesstt cciirrccuullaarrss..
Nos. 2
XXIIIIII IInnssttaallllaattiioonn ooff BBeellll PPllaatteess iinn HHeeaadd GGeeaarr aanndd rreellaatteedd ffaabbrriiccaattiioonn wwoorrkkss..
Nos. 2
152
Sr. No.
DESCRIPTION OF WORK UNIT
OF WORK
QTY. RATE (Rs.)
Amount (Rs.)
VAT / CST
Service Tax
Any other
Tax/Duty
Total Amount
with taxes & duties
(Rs.)
XXIIVV SSuuppppllyy && IInnssttaallllaattiioonn ooff CCaaggee DDooggss iinn tthhee HHeeaadd GGeeaarr,, iinn ccoonnffoorrmmiittyy wwiitthh tthhee rreeqquuiirreemmeennttss ooff DDGGMMSS
Sets 4
XXVV CChhaarrggeess ffoorr SSttrreessss AAnnaallyyssiiss ooff HHeeaadd GGeeaarr bbyy aa rreeccooggnniizzeedd ssttrruuccttuurraall ccoonnssuullttaanntt && DDGGMMSS aapppprroovvaall ffoorr uussee ,, aalloonngg wwiitthh aallll tthhee rreellaatteedd ddooccuummeennttss,, ccaallccuullaattiioonnss && ddrraawwiinnggss..
Lot 1
XXVVII DDeessiiggnn,,PPrroovviiddiinngg,, ssuuppppllyy,, iinnssttaallllaattiioonn ((iinncclluuddiinngg ddeessiiggnn aanndd ccaassttiinngg ooff RR..CC..CC.. ffoouunnddaattiioonn))cc ccoommmmiissssiioonniinngg aanndd ttrriiaall rruunn wwiitthh DDGGMMSS aapppprroovvaallss -- 225500 HHPP ((mmiinniimmuumm)) DDoouubbllee DDrruumm NNeeww ppeerrmmaanneenntt WWiinnddiinngg EEnnggiinnee ((RReeppuutteedd mmaakkee)) wwiitthh PPLLCCbbaasseedd VVFFDD // TThhyyrriisstteerr ddiiggiittaall ccoonnttrroollss aanndd aallll eelleeccttrriiccaallss lliikkee AA..CC..//DD..CC.. MMoottoorr,, ccoonnttrroollss aanndd ccoonnttrrooll ppaanneell,, DDrriivvee eettcc aalloonngg wwiitthh ccoosstt ooff aallll iinnppuuttss lliikkee DDrruumm SShhaafftt,, DDrruummss,, BBeeaarriinnggss && PPeeddeessttaallss,, GGeeaarrbbooxx,, HHyyddrraauulliicc SSyysstteemm,, HHyyddrraauulliiccaallllyy aaccttuuaatteedd Suspended post brake/Parallel motion brake /Disc caliper brake, tthhrruusstteerr bbrraakkee eettcc..,, ccoommpplleettee wwiitthh aallll tthhee ssaaffeettyy ffeeaattuurreess nneeeeddeedd ffoorr mmaann wwiinnddiinngg,, AAuuttoommaattiicc CCoonnttrriivvaannccee,, LLiimmiitt SSwwiittcchheess,, SSeennssoorrss,, PPrrooxxiimmiittyy sswwiittcchheess eettcc.. aatt PPiitt TToopp aanndd eevveerryy lleevveell iinn uunnddeerrggrroouunndd,, SSiiggnnaalllliinngg ssyysstteemm wwiitthh KKEEPPSS && DDoooorrss’’ iinntteerrlloocckkss,, iinnccoorrppoorraattiinngg rreeqquuiirreemmeennttss ooff MMMMRR && DDGGMMSS cciirrccuullaarrss.. AAllll tthhee vviittaall ccoommppoonneennttss ooff tthhee WWiinnddiinngg EEnnggiinnee sshhaallll bbee ggoott tteesstteedd bbyy UUllttrraa ssoonniicc ffllaaww ddeetteeccttiioonn mmeetthhooddss aanndd MMaaggnneettiicc PPaarrttiiccllee tteessttss,, tthhrroouugghh aa DDGGMMSS aapppprroovveedd LLaabb.. ffoorr ssaaffee aanndd ddeeffeecctt ffrreeee uussee.. TThhee WWiinnddiinngg EEnnggiinnee sshhaallll bbee ssuupppplliieedd wwiitthh aallll aacccceessssoorriieess,, ssuuiittaabbllee ffoorr uussee iinn ((IInnddiiaa)) iinn uunnddeerr ggrroouunndd mmeettaall mmiinneess,, iinn aa rreeaaddyy ttoo uussee mmaannnneerr.. AAllll tthhee ssttaattuuttoorryy aapppprroovvaallss ffrroomm rreegguullaattoorryy aauutthhoorriittiieess sshhaallll bbee wwiitthhiinn tthhee ssccooppee ooff tthhee CCoonnttrraaccttoorr..
Nos 1
153
Sr. No.
DESCRIPTION OF WORK UNIT
OF WORK
QTY. RATE (Rs.)
Amount (Rs.)
VAT / CST
Service Tax
Any other
Tax/Duty
Total Amount
with taxes & duties
(Rs.) XXVVIIII OOPPEENN IITTEEMMSS
aa FFiixxiinngg ooff 11..55 mmttrrss.. lloonngg rroocckk bboolltt wwiitthh cceemmeenntt ggrroouuttiinngg.. ((RRoocckk bboolltt wwiillll bbee ssuupppplliieedd bbyy MMOOIILL))
Nos. 500 bb PPrroovviiddiinngg PPllaaiinn cceemmeenntt ccoonnccrreettee ((PP..CC..CC..)) MM--1155 ggrraaddee
m³ 150 cc PPrroovviiddiinngg RReeiinnffoorrcceedd cceemmeenntt ccoonnccrreettee ((RR..CC..CC..))
MM--1155 ggrraaddee,, iinncclluuddiinngg ccoosstt ooff rreeiinnffoorrcceemmeenntt sstteeeell @@7755kkgg//mm³³..
m³ 100
dd RRoocckk eexxccaavvaattiioonn wwoorrkk.. m³ 500
e Steel fabrication work on labour rate basis including cost of consumables and handling etc.
Ton 8
f SStteeeell ffaabbrriiccaattiioonn wwoorrkk wwiitthh mmaatteerriiaall && llaabboouurr iinncclluuddiinngg ccoosstt ooff ccoonnssuummaabblleess aanndd hhaannddlliinngg eettcc..
Ton 5 TOTAL
Total Quoted amount in words inclusive of taxes Rupees-......................................................................
NNoottee:: 11.. AAllll tthhee eeqquuiippmmeennttss && aacccceessssoorriieess lliikkee ppiippeess,, ccaabblleess,, ccoommpprreessssoorrss,, ttoooollss eettcc.. aass nneeeeddeedd dduurriinngg ssiinnkkiinngg aanndd aalllliieedd wwoorrkkss sshhaallll bbee pprroovviiddeedd bbyy tthhee CCoonnttrraaccttoorr..
22.. TThhee CCaaggeess,, CCaaggee SSuussppeennssiioonn GGeeaarr,, CCaapppplleess && SStteeeell wwiirree rrooppee ffoorr ppeerrmmaanneenntt iinnssttaallllaattiioonn sshhaallll bbee pprroovviiddeedd bbyy MMOOIILL.. HHoowweevveerr ssiimmiillaarr iitteemmss nneeeeddeedd ffoorr ssiinnkkiinngg ooff SShhaafftt sshhaallll bbee bbyy tthhee CCoonnttrraaccttoorr..
33.. TThhee EEqquuiippmmeennttss && aacccceessssoorriieess bbrroouugghhtt bbyy tthhee CCoonnttrraaccttoorr ffoorr SSiinnkkiinngg ooff tthhee SShhaafftt aanndd aalllliieedd wwoorrkkss sshhaallll bbee ttaakkeenn bbaacckk bbyy hhiimm,, aafftteerr ccoommpplleettiioonn ooff tthhee wwoorrkk..
4. PPiippeess && ccaabblleess rreeqquuiirreedd ffoorr ppeerrmmaanneenntt iinnssttaallllaattiioonn wwiillll bbee pprroovviiddeedd bbyy MMOOIILL.. 5. EEvvaalluuaattiioonn ooff tteennddeerr sshhaallll bbee ddoonnee oonn oovveerraallll bbaassiiss iinncclluuddiinngg tthhee rraattee qquuootteedd aaggaaiinnsstt IItteemm NNoo..-- XXVVIIII –– OOPPEENN IITTEEMMSS..
154
Annexure-VIII
CLAUSE OF PRE-BID MEETING IN TENDER DOCUMENT CHIKLA SECOND
VERTICAL SHAFT
PRE-BID MEETING: If it is felt necessary by the Company, the
tenderers or their official representatives will be invited to attend the pre-
bid meeting, which will take place at the office of MOIL Limited, “MOIL
Bhawan”, 1-A Katol Road, Nagpur, Maharashtra, India on a date to be
notified on the company’s website. The purpose of the meeting will be the
following:
a) Pre-bid presentation of module or mode of carrying out the work.
b) Clarifying issues and to answer questions on any matter that may
be raised at that stage. Tenderer shall submit questions, if any, in
writing or by e-mail to reach the employer not later than one week
before the meeting.
Minutes of the meeting, including the text of the questions
raised (without identifying the source of enquiry) and the response will be
transmitted to all purchasers of the tender documents, as also shall be
uploaded on the official web site of MOIL. Any modification of the tender
documents, which may become necessary as a result of the pre-bid
meeting, shall be made by the Employer exclusively through the issue of
an addendum / corrigendum, which will be posted on the company’s
website only. Non-attendance at the pre-bid meeting will not be a cause
for disqualification of tenderer.
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