ts_lt control cable-final

7/28/2019 Ts_lt Control Cable-final

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NATIONAL ALUMINIUM COMPANY, ANGUL

2 x 120 MW EXPANSION OF CPP

MISCELLANEOUS-1C PACKAGE, LT CONTROL CABLE

01.00 INTRODUCTION

M/s. National Aluminum Company (NALCO), Angul, basically a dynamic and upright

Public Sector Undertaking under Govt. of India, are in the process of expansion oftheir aluminium smelter plant. The smelter plant being a power intensive unit requireshuge power for alumina processing.

National Aluminium Company Limited (NALCO) already owns a Captive Power Plant(CPP) consisting of 8 units, each of 120 MW capacity. In first phase, 6 units of 120 MWeach (unit 1, 2, 3, 4, 5 & 6) had been installed long back. As a part of expansion,NALCO have installed two more units, each of 120 MW (unit 7 & 8).

NALCO now intend to expand the CPP and proposed to add two more units (unit 9 &10), each of similar capacity of 120 MW as a part of second phase expansion. Thepower distribution package (Part-A) at CPP has been proposed for distribution ofelectrical power to various plant auxiliaries of these two units as well as of variouscommon facilities and balance of plants.

This specification covers the design, manufacture, testing, packing, loading, transportof 1.1 kV PVC insulated FRLS type control cables to be installed for Captive PowerPlant Unit # 9 & 10 of National Aluminium Company Limited being set up at Angul inOrissa State.

TS FOR MISC-1C PACKAGE, LT CONTROL CABLE

Q654-NALCO-LT CONTROL CABLE 2006, MECON LIMITED. All Rights Reserved Page 1 of 21


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02.00 INTENT OF SPECIFICATION AND PROJECT INFORMATION

This specification is intended to cover supply of LT control, PVC, FRLS cables for

2x120 MW Expansion of Captive Power Plant of National Aluminium Company Limitedat Angul, Orissa. The specification covers design, engineering, manufacturing, offerfor inspection, shop testing, packing, transportation, loading and delivery at site of allthe cables.

02.01 DETAILS OF PLANT

The entire Captive Power Plant has come up in two stages i.e. Stage - I and Stage - II.

Stage-I of CPP consists of six nos. of units (Unit No. 1 to 6), each of capacity 120 MW.

Stage-II of CPP consists of two nos. of units (Unit No. 7 & 8), each of capacity 120 MW.

EXISTING POWER DISTRIBUTION AND EVACUATION SYSTEM

The 8 nos. TG sets (TG # 1, 2, 3, 4, 5, 6, 7 & 8) of CPP generate power at 10.5 kV busand evacuate the generated power at 220 kV outdoor switchyard through step upgenerator transformers. For internal unit auxiliary consumption, primary distribution levelat 6.6 kV is available through one no. (per unit) 10.5/6.9kV step down transformer. Startup as well as station power is available from 220 kV through 5 Nos. 220/6.9 kV stationauxiliary transformers.

For internal LT unit auxiliary consumption, a secondary distribution level at 415 V isavailable at 415 V Unit Power Control Centre (PCC) through two nos. (per unit)6.6/0.433 kV step down LT unit auxiliary transformers. LT start up and station power isavailable at 415 V Power Control Centre (PCC) from 6.6 kV station switchboard throughtwo nos. 6.6/0.433 kV step down LT station auxiliary transformers.

Similarly, for all other common facilities and balance of plants, LT auxiliary power isavailable at respective 415 V Power Control Centre from the respective 6.6 kVswitchboard through two nos. 6.6/0.433 kV step down LT load centre transformers foreach balance of plant/common facility.

All the interconnections amongst various 415 V Power Control Centres (PCCs), 415 VMotor Control Centres (MCCs), Power Distribution Boards (PDBs), AC DistributionBoards (ACDBs), LT Motors, Electrical Actuators, Lighting networks, power receptacles,DC systems, etc have been realized with 1.1 kV, PVC, FRLS/non-FRLS cables.

02.02 NEW PLANT PROPOSED

The expansion of existing CPP has been planned and shall be consisting of two units of120 MW each. Each of the TG sets (TG # 9 & 10) shall generate power at 10.5 kV andevacuate the generated power at 220 kV outdoor switchyard through 10.5/235 kVgenerator transformers. Unit auxiliary power shall be available through one no. (per unit)10.5/6.9kV step down unit auxiliary transformer. Start up as well as station power is




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available from 220 kV through 1No. 220/6.9 kV station auxiliary transformer

For internal LT unit auxiliary consumption, a secondary distribution level at 415 V has

been envisaged through two nos. (per unit) 6.6/0.433 kV step down LT unit auxiliarytransformers. LT start up and station power has been envisaged from 6.6 kV stationswitchboard through two nos. 6.6/0.433 kV step down LT station auxiliary transformers. .Local 415 V Motor Control Centres (MCCs) have been envisaged to cater therequirement of various load centers of the units. The MCCs shall be fed from therespective PCC. Separate DC systems consisting of batteries, chargers and DCDBshave been envisaged for the critical DC drives, DC control power requirement and DCemergency lighting. Separate lighting networks have been envisaged for the plantillumination and shall be fed from the 415 V PCCs through various LDBs/SLDBs. Noncritical loads like cranes/hoists, power receptacles, etc shall be fed through variousPDBs/ACDBs/DBs.

For common facilities and balance of plants, LT auxiliary power has been envisagedfrom the 6.6 kV associated switchboards through two nos. 6.6/0.433 kV step down LTload centre transformers for each of the balance of plants/common facilities. Local 415 VMotor Control Centres (MCCs) have been envisaged to cater the requirement of variousload centers of the common facilities and balance of plants. The MCCs shall be fed fromthe respective PCC. Dedicated DC systems, lighting networks and feeding arrangementfor non-critical loads have also been envisaged at each of the common facilities andbalance of plants.

All the interconnections amongst various 415 V Power Control Centres (PCCs), 415 VMotor Control Centres (MCCs), Power Distribution Boards (PDBs), AC DistributionBoards (ACDBs), LT Motors, Electrical Actuators, Lighting networks, power receptacles,DC systems, etc shall be realized with 1.1 kV, PVC, FRLS cables at main plant as wellas all the common facilities and balance of plants.

02.03 PLANT LOCATION & METEOROLOGICAL DATA

Location of the Site

NALCOs existing Captive Power Plant is located at Angul, Angul District, in the State ofOrissa. The plant is located adjacent to National Highway NH-42 and near NH-23connecting to Talcher. Angul Town is located on NH-42 which is connected to Cuttack toits east.

Work Terrain

The topography of the proposed plant site is more or less having an average groundlevel of 97m above MSL, with a mild downward slope towards East.

Meteorological Data

The equipment offered shall be suitable for following climate condition.




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Geological location : Captive Power Plant Division

At/PO/Dist.-Angul,Orissa-759 122

Altitude above mean sea level : 97 m.

Maximum Ambient temperature : 500C Minimum Ambient temperature : 50C

Maximum Relative Humidity : 100%

Maximum Wind Speed : 180Km/Hr.

Climatic condition : Tropical.

The plant is situated in a region falling under border of earthquake Zone-II & Zone-III asper IS-1893.

All other relevant details about site condition shall be obtained by the tenderer from theclient/ consultant.

Railways/ Roads / Seaport / Airport

The South East Railway Line connecting Cuttack and Talcher is within 4.5 KM of theplant site.

The CPP site is located adjacent to national Highway NH-42 and NH-23. The nearestseaport is at Paradip. The nearest Airport is at Bhubaneswar.




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03.00 SPECIAL INSTRUCTIONS TO TENDERERS

03.01 Compliance with Specification

The cables covered under this specification shall conform to `TechnicalSpecifications' given in this document.

The tender for cables under this specification shall be complete in all respects andany items/accessories not specifically mentioned in this tender document butconsidered essential for efficient and satisfactory operation of cables as a wholeshall be included in the offer. Incomplete offers shall not be considered.

The Tenderer shall study the entire specification carefully and satisfy himselfthoroughly regarding the workability of the cables specified and shall take fullresponsibility for the guaranteed performance of the cables as regards ratings,performance and smooth reliable working. If the Tenderer feels that any design datafor the cables described hereafter are in his opinion unsuitable, he shall indicate thesame and submit an alternative proposal on the basis of the design he considerssuitable and capable of meeting the duty and operational requirements. However,such alternative shall be subject to the approval of the Purchaser.

The cables shall be suitable for voltage/frequency variations and other data given in

Electrical System Design.

03.02 Standards and Regulations

The cables shall be designed, manufactured and tested in accordance with the

relevant standards of the Bureau of Indian Standards, IEC 332 Part-I, BS 4066,IEEE-383, IEC-754-1, ASTM-D 2863, IEC 332-3, and Swedish chimney test SS-424-14-75 class F3 in order that specific aspects under Indian conditions are takencare of.

Following Indian standards (Latest amendments) shall also generally be applicable;

IS- 3961 (Part-2)

IS-8130 : 1984

IS 5831 : 1984

IS-1554 (Part-1)

In the event of any conflict between stipulations of different standards, the moststringent stipulation shall be applicable.The cables shall be manufactured with high quality materials and workmanship.

In case where the offer deviates from the specified standards, the Tenderer shallindicate clearly in his offer the standards proposed to be adopted by him with detailsthereof.




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03.03 Make & Interchangeability

The tenderer shall consider cables of his own make. The cables of same sizes shallbe exactly identical in all the features.

03.04 Safety

All the cables and their packaging in cable drums must be equipped with all the

applicable safety features conforming to the recognized standards, safety codes

and statutory regulations. Special care shall be taken during manufacturing,

packaging and transportation accordingly.

03.05 Compliance with rules & regulations

All the cables and cable drums shall be supplied in accordance with therequirements of relevant standards, Indian electricity Rules, Indian Electricity Act,

2003 and also the Factory Act.

It shall be the responsibility of the tenderer to prepare and submit all necessary

documents, drawings, test certificates and relevant details.

03.06 Quality and Workmanship

Workmanship and finish shall be in accordance with the best and latest engineeringpractices. All materials used for the manufacturing of cables by the successful

Tenderer and the workmanship shall be good quality and suitable for the purposeintended and in accordance with the highest standards acceptable, as per IndianStandards or as per other approved standards and code of practices for cables ofthe class covered in the specification.




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04.00 SCOPE AND DESIGN CRITERIA

04.01 The specification covers design, basic engineering, detailed engineering,

manufacture, offer for inspection, shop testing, packing, transportation, loading anddelivery at site of the 1.1 kV PVC insulated FRLS armoured control cables.

This specification is being issued for procurement from indigenous sources only.

All quotations shall contain a statement that the cables offered are in conformitywith the enclosed technical specification and wherever any exception/ deviationsare taken, reference must be made to definite parts of this specification andcomplete description given of each exception and reason thereof. In the absence ofsuch statement of exclusion/deviation, it will be presumed that the tenderer hasadhered to the specification fully in words and spirit.

The project shall be executed on Item Rate Basis and quantity may increase ordecrease during detailed engineering as per requirement at site. Addition/deletionshall be based on unit rate furnished by the tenderer in his tender. Quantity of anyindividual item may vary to the any extent.

04.02 During detailed engineering, successful bidder shall furnish complete technical datasheet of the cables for approval of the owner/consultant. Tenderer shall alsoprovide all technical inputs required for further engineering of cable installation bythe owner in separate contracts.

4.3 The scope of supply for LT Power cables covered under this specification shallcomprise interconnection of the following:

1. One (1) lot 1.1 kV grade, multicore PVC insulated, PVC sheathed armouredFRLS control cables of different sizes with copper conductor conforming to IS-1554 (Part-1) and suitable for solidly earthed neutral system.

2. One (1) lot 1.1 kV grade, single core PVC insulated, PVC sheathed unarmouredFRLS cable of different sizes with Copper conductor conforming to IS-1554(Part-1) and suitable for solidly earthed neutral system (AC).

The requirements for different sizes of cables are indicated in the enclosedSchedule of Quantities in Annexures-I.

Tenderer shall furnish unit rates if each and every size of the cable and the sameshall be valid and applicable for additions/deletions during engineering stage.

Unit rate quoted by the tenderer in above Annexure-I for different sizes of thecables shall remain valid till the contractual period is over. If required, owner mayplace repeat order any time within the contractual period for additional quantitiesdepending upon the further site requirement of cables. In such case, the successfultenderer shall supply immediately the cables required by NALCO at the same rate,terms and conditions of the tender documents. Quantity of individual size of cablemay vary to the any extent in this case.




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04.04 The cables under scope of the tenderer shall be broadly for the followingapplications and interconnections;

LT control cables are basically to be used for the following interconnections:

1. 6.6 kV switchboards to control panels at all the main plant as well as at balanceof plant substations

2. 415 V PCCs to control panels at all the main plant as well as at balance of plantsubstations

3. 415 V PCCs to 6.6 kV switchboards4. 415 V PCCs to 415 V MCCs5. 6.6 kV switchboards/415 V PCCs/415 V MCCs to DDCMIS/PLC6. copper flexible cables required for lighting7. Control cabling required for switchyards and EHT transformer yards8. Control cabling required for control, operation, monitoring, annunciation,

interlocking, synchronization, etc for generators, turbines and boilers includingESPs

9. Control cabling required for operation of HT/LT drives and electrical actuators10. LT control cabling associated with electrics of Diesel Generator Set11. Other LT control cabling required to meet the approved control schemes at main

plant as well as at various balance of plants12. LT control cabling required for automation of the main plant as well as various

common facilities and balance of plants13. Control cabling required for various electrics for A/C & ventilation, crane/hoist,

lifts, etc14. Interconnection LT control cabling, other if any, as required by the owner at

site

04.05 Design Criteria

General

The cables shall generally be laid exposed on brackets, cable trays, racks/hooks inconcrete tunnels/trenches, cable cellars/basements/galleries/trestles, over headtrays, etc.,

The current carrying capacity of cables shall conform to IS-3961 (Part-2).

Climatic Conditions

The cables offered shall be suitable for smooth, efficient and trouble free service inthe climate prevailing at Angul. The cables shall be designed to withstand theoperating conditions in the plant and the atmospheric conditions at the site asmentioned.

The power cables shall be capable of operating at the required capacity in ambientair temperature of 500C maximum and 450C average over 24 hours and ambient




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ground temperature of 300C.

Standard Voltage levels

The electrical LT power distribution system is 415V, 3 phase, 4 wire, solidlyearthed.

Permissible variations

The cables shall be designed suitably for following variations;

Voltage Variation : + 10 %

Frequency Variation : + 5 %

Combined variation of voltage & frequency :+ 10 %

Symmetrical short circuit rating

The three phase symmetrical short circuit rating at 415 V level is 50 kA. The ratedshort circuit withstand duration for 415 V is 1 sec.

System earthing

415 V system is solidly earthed.




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05.00 PERFORMANCE REQUIREMENT AND GUARANTEE

The tenderer shall study the specification and satisfy himself thoroughly regarding

the workability of the cables specified and also take full responsibility for theguaranteed operation and performance of the same as well as for their smooth,safe and reliable working.

The cables shall be guaranteed for workmanship, materials design and satisfactoryperformance to the parameters in accordance with the specification document andrelevant clauses of the General Purchase Conditions. The earth conductors of thecables shall also be guaranteed for workmanship materials used in manufacturing.

The guarantee for performance shall cover for all the technical parameters includingtheir ratings (normal as well as short time), etc.

All the type and routine tests on the cables shall be included for the performanceparameters required as per specification.




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06.00 TECHNICAL SPECIFICATIONS

The LT control cables shall be 1.1 kV grade PVC insulated, PVC sheathed with

FRLS characteristics. The FRLS (Fire Retardant Low Smoke) cables shall notpropagate fire and shall have low smoke and low halogen emission characteristics.

TYPE : 1

1.1 kV PVC insulated armoured, FRLS PVC sheathed, multi core copperconductor cables

1.1 kV, heavy duty control cable, circular stranded, multi core, annealed copperconductors, PVC insulated of type C PVC compound suitable for 85 degreecentigrade operation as per IS-5831, core stranded together provided with acommon covering of FRLS PVC inner sheath of type ST2 PVC compound,galvanized round steel wire armoured and FRLS PVC outer sheathed of type ST2PVC compound conforming to IS-5831 as amended up to date.

The number of cores are given in the Schedule of Quantities. The cross sectionalarea for the control cables shall be 2.5 sq.mm with copper conductor. All controlcables shall be stranded type.

Type of cable : YWY with FRLS characteristics

TYPE 2

1.1 kV PVC insulated un-armoured, FRLS PVC sheathed, multicore copperconductor cable

1.1 kV, heavy duty control cable, circular stranded, multi core, annealed copperconductors, PVC insulated of type C PVC compound suitable for 85 degreecentigrade operation as per IS-5831, core stranded together provided with acommon covering of FRLS PVC inner sheath of type ST2 PVC compound,unarmoured and FRLS PVC outer sheathed of type ST2 PVC compoundconforming to IS-5831 as amended up to date.

The cross sectional area for the cable shall be 2.5 sq.mm with copper conductor.The cable shall be stranded type.


TYPE 3

1.1 kV PVC insulated un-armoured, FRLS PVC sheathed, single core copperconductor cable

1.1 kV, heavy duty control cable, circular stranded, single core, annealed copperconductor, PVC insulated of type C PVC compound suitable for 85 degree




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centigrade operation as per IS-5831, core stranded together, un-armoured,provided with a covering of FRLS PVC inner/outer sheath of type ST2 PVCcompound, conforming to IS-5831 as amended up to date.

The cross sectional area for the cable shall be 2.5 sq.mm with copper conductor.The cable shall be stranded type.


The following standards shall necessarily be applicable for all the above types ofcables;

The cable shall designed, manufactured and tested in accordance with IS-1554(Part-1) as amended up to date.

The PVC compound used for sheathing shall conform to IS-5831.

Thickness of sheathings shall conform to IS-1554 (Part-1) Armouring shall be of single layer galvanized steel round wire as laid down in

IS-1554 (Part-1)

All the cables shall be provided with FRLS characteristics. The test certificates shallbe furnished for the following;

Fire retardancy

Low smoke emission

Low emission of corrosive gases/vapours

Reduced toxicity of combustion products

Circuit integrity in fire situation

Flexibility and ease of installation

Requirements of FRLS cables

FRLS cables shall meet the following requirements;

Critical oxygen index, temperature index and smoke density tests shall conform

to the requirement of ASTM-D 2863.

Oxygen Index of minimum 30 %, minimum Temperature Index 2500C and

minimum average light transmission of 40 %

Acid gas generation limit shall be as per IEC 754-1 (Hydrochloric acid gas

released 20 % maximum) Ignition resistance and flame propagation shall conform to IEC 332-1 and fire

resistance test shall conform to IS 5831

Flammability test and flammability test on group of cables (in installed condition)

shall conform to requirement of IEEE 383 and IEC 332-1.

Swedish chimney test as per SS-424-14-75 class F3.




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Additional tests on cables

To prove the FRLS characteristics, the following additional tests shall be conducted

at works on each type and size of cable in presence of owner/consultant;

Oxygen Index Test as per ASTM-D 2863 (Minimum value of Oxygen Index shallbe 30)

Flammability tests on finished cable as per the requirement of IEEE-383 andIEC-332-1

Smoke generation by inner/outer sheath fire as per ASTM-D 2843. The cablesshall meet the requirements of light transmission of minimum 40 % after thetests.

Identifications required to be marked on cables

The manufacturers identification on the cables shall conform to clause 17 of IS1554 (Part -1).

The following information shall necessarily be marked on outer sheath of cables atregular intervals for easy identification, termination & laying.

Indian standard No.

Voltage Grade

FRLS, PVC

Manufacturers name.

Year of Manufacturing

No. of cores & size of cable.

ISI mark. Sequential length marking.

NALCO CPP

Cable code (YWY or as applicable)

In addition, all multicore control cables shall have core numbering (1, 2, 3, )to be marked continuously on the insulation of each core for the ease ofidentification during termination.

Drum Lengths for the cables

The cables shall be supplied in drum lengths as per the Owner's requirement to

minimise the number of joints. The drum lengths shall be mutually agreed upon.

Separate drums shall be provided for different type/size of cables. For details, refer

Section-VII Marking & Packing Instructions of Volume-I.

The 90% drums shall be wooden. 10% drums subject to minimum one number for

each type/size of cables shall be metallic to keep the surplus cables for longer

duration. The wooden/metallic drums shall be as per GA drawings furnished by the




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successful tenderer and duly approved by the owner/consultant.

The successful tenderer shall supply cables in drum lengths to be mutually agreed

upon, for which written approval shall be taken from the Purchaser beforecommencing manufacture. Over and above the agreed drum lengths, each drum

shall contain extra length which may be required to be cut for inspection.

The tolerances on cable length shall be + 5% for individual cable drum and + 2% on

the total length of cable ordered.




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07.00 DOCUMENTS TO BE SUBMITTED BY THE TENDERER

07.1 Along with the Tender

1. All the relevant and necessary documents, catalogues, descriptive literaturerequired for proper understanding of the design and manufacturing of the cablesoffered

2. Copies of type test certificates for the cables offered as per IS/Internationalstandards.

07.2 After placement of order

1. Six (6) sets of certified copies of the following documents shall be furnishedjust after placement of order

1. Type test certificates for different sizes of cables2. Routine test certificates for different sizes of cables3. Complete technical data sheet for different sizes of cables4. Instruction manuals for laying the cables5. General Arrangement drawing of cable reeling drums

2. After obtaining comments on the drawings/documents, the successfultenderer shall supply all certified drawings/documents as per GeneralPurchase Conditions including those mentioned above.

3. All routine and type test certificates in separate bound volumes ( 6 sets) for allsizes of cables after completion of supply




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08.0 INSPECTION AND TESTING

08.01 GENERAL

1.1 kV grade copper PVC FRLS cables shall be tested in accordance with thetesting and inspection schedule as outlined below. The following proformaenclosed herewith shall be used for Inspection Call, Quality Assurance, InspectionCertificate and Inspection Memo.

1. Inspection call proforma : Form No. 11.20(DQM)F-05/22. Quality Assurance Plan : Form No. 11.20(DQM)F-103. Inspection certificate : Form No. 11.20(DQM)F-194. Inspection memo : Form No. 11.20(DQM)F-18

08.02 INSPECTION

All inspections shall be carried out on the basis of QAP dully approved by owner/consultant.

All the tests shall be inspected by the Owner/Consultant. Dispatch clearance shall begiven by Owner/Consultant after the equipment is inspected and found as perrequirement and as per TS. All types tests certificates shall be submitted by thetenderer in this case.

Inspection will generally comprise of three different stages of activities;

1. Pre-inspection2. Inspection3. Post-inspection

PRE-INSPECTION ACTIVITY

1. Inspection and test procedures shall be finalized for the cables to be suppliedin the prescribed formats. All tenderers shall confirm their acceptance ofthe Inspection procedure, for all cables under his scope of supply, asenclosed herewith. Inspection will generally be carried out for cables listed inContract / PO specification and / or approved billing schedule. Cables notcovered in this list, but envisaged at a later date shall be covered by anadditional inspection procedure, to be agreed upon, prior to offering suchcables for inspection. No inspection shall be carried out for cables for which

inspection and test procedures have not been agreed upon.

2. All the cables included in the Schedule of Quantities shall be inspected forroutine and acceptance tests as per relevant IS. Type tests shall also becarried out to conform the requirements for FRLS properties as specified inthis tender specification.




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3. Contractor shall submit a master chart in the prescribed format showing theirproposed programme of offer of items for inspection.

4. It is the Contractors sole responsibility to ensure that besides quality, cablesoffered for inspection are complete in all respects as per terms of the Contractand all facilities for testing are available at the time of inspection.

5. Inspection request for cables shall be made only after approval of GA / Layoutdrg. / Data sheet / Cable schedule as relevant and finalization of ContractTechnical Specification.

6. The Contractor shall send their inspection requests eight days in advance inthe prescribed format, duly completed in all respect. Calls with incomplete orerroneous information and without internal inspection report / test certificatesetc. shall not be considered. Inspection request shall be sent to MECONLTD Ranchi Office along with complete documents with a copy toNALCO, Angul.

7. The Contractor shall ensure full and free access of the Inspection Agency ofCustomer to the Contractors at their sub-contractors premises, any timeduring contract period, to facilitate him to carry out inspection and testing.

8. The Contractor shall delegate a representative / coordinator to deal withCustomer / Inspection Agency on all inspection matters. Contractorsrepresentative shall also be present during all inspection at his sub-contractors work.

9. The Contractor shall furnish the copies of calibration certificates, issued by theappropriate recognized authorities, for various measuring instrument gauges

and testing machines etc. along with the inspection calls.

10. Inspection & test procedure followed for the cables specified is enclosed in

enclosed QAP proforma. This is for information and to give an idea about the

type of inspection that shall be carried out by the Inspecting agency &

documentation that shall be expected of the supplier. Inspection and test

procedures shall be formally finalized with the successful tenderer for all

cables under his scope of supply.

ACTIVITIES DURING INSPECTION

1. All instruments, apparatus, tools and tackles, gauges, templates,

consumables etc. required for testing and inspection shall be arranged by the

Contractor free of cost to the Purchaser/Inspection Agency. All tests shall be

carried by the Contractor and Inspector will only witness such tests.

2. Large quantity of cables offered at a time shall also be inspected on 100%




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basis. All the cables shall be subjected to type tests, routine tests, and

acceptance tests witnessed by the owner/consultants.

3. A joint inspection report/ certificate will be prepared in the prescribed formatenclosed herewith and signed by all concerned at the place of inspection on

completion of inspection work. Accepted cables/cable drums shall be stamped

suitably, if feasible, for identification.

POST-INSPECTION ACTIVITY

1. Inspection Certificate / Memo as per enclosed proforma will be issued by theInspecting Agency indicating Acceptance or Rejection. In case of rejection,reasons will be mentioned on the Inspection Memo in the remarks column. Noitem shall be dispatched without obtaining Inspection Certificate from

the Inspection Agency and Dispatch Clearance from the Owner. .

08.03 TESTING

Test of all equipment shall be conducted as per latest BIS. Wherever no suchstandard exists, tests shall be as per International Standards likeIEC/DIN/BS/IEEL/JIS, etc.

All routine tests shall be carried out at manufacturer's works in presence ofowner/consultant or his representative.The tenderer shall submit type test certificates (not more than 5 years old) for

similar cables supplied by him elsewhere. In case type test certificates for similarequipment is not available, the same shall be conducted in presence of owner or hisrepresentative, without any financial implications to owner.

The type tests certificates to be furnished or type tests to be conducted shall be forall the technical parameters specified in the specification.

The tenderer shall be responsible for guaranteed performance of all the cablesduring testing.

In addition to all the tests to demonstrate the technical parameters, the additionaltests as specified in clause 06.00 shall also be carried out in presence of

owner/consultant.

The quantity of cables consumed during testing shall be free and to the suppliersaccount. The testing/inspection agency shall ensure that the drum length beforeand after inspection are documented in the inspection report.




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09.00 INFORMATION TO BE FURNISHED WITH THE TENDER

The tenderer shall furnish in his offer the information called for in different sections

of this specification/tender documents without which the offer is liable to berejected. The information furnished shall include the following.

1. Complete description of the cables offered specifying the salient features andmaterials of construction etc, to enable the owner to have a properunderstanding of the cables offered and requirements for laying andoperation. In addition, the specific information as called for in thespecification/tender documents shall also be furnished with the offer.

2. The offer shall be accompanied by necessary tender documents as called for inClause 07.0 of this specification.

3. The tenderer shall submit the information as called for in the enclosedquestionnaire (required technical particulars as given below) duly filled in.Offers with incompletely filled in questionnaire are liable to be rejected.

4. Each exception or deviation from the specification or other parts of the tenderdocuments shall be listed separately. The tenderer must clearly give thereasons for the deviations. If exceptions are not clearly listed, they will not beconsidered by the Owner.

5. List of tests proposed by the tenderer at works shall be as called for in clause08.00 of this specification.

6. The tenderer shall submit with the offer reference list giving details of ordersexecuted in the past for the cables. The information shall include the name ofthe purchaser, year supplied, quantity, type, total cost etc.

QUESTIONAIRE

1.0 GENERAL

1.1 Tenderer's name and address

1.2 Quotation number and date

1.3 Name of manufacturer

2.0 TECHNICAL PARTICULARS

(To be furnished separately for each and every size of the cables)

2.1 Voltage grade

2.2 Standards followed




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2.3 Current rating at applicable ambient temperature.

2.4 Whether suitable for solidly earthed neutral system

2.5 Allowable max. conductor temperature under normal operating

condition.

2.6 Allowable max. conductor temperature during short circuit.

2.7 Allowable screen temperature during earth fault.

2.8 Graph showing permissible short circuit current carrying capacity.

2.9 Descriptive literature

2.10 Composition of insulation

2.11 Thickness of insulation

2.12 Composition of inner sheath.

2.13 Thickness of inner sheath.

2.14 Composition of outer PVC sheath.

2.15 Thickness of outer PVC sheath.

2.16 Overall diameter of complete cable.

2.17 Minimum permissible bending radius.

2.18 Weight per meter of complete cable.

2.19 Maximum standard drum length of cable.

2.20 Weight of maximum standard drum length of cables.

2.21 Overall size of drum.

2.22 Copies of type test certificates.

2.23 No. & size of armour wire




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2.24 Material for armour wire

ts_lt control cable-final

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