amc vol_1_part_ii

8/3/2019 amc Vol_1_part_II

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KHOKHRA SWIMMING POOL, AHMEDABAD

Electrical Consultant: IceCube Page 1 Architect: L J Purani & Associates

VOLUME I

TECHNICAL BID PART II


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SCOPE OF WORK

FOR

ELECTRIFICATION


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SCOPE OF WORK FOR ELECTRICAL INSTALLATION

1 GENERAL

AMC has decided to Modify and improve the facility at Swimming pool at Khokhara , Maninagar

Ahmadabad.

Required power connections from AEC is already available at site. 415V AC, 50 HZ, 3 phase power

is already available up to Metering point of AEC. Main L.T. Panel will get power from there.

Main L.T. Panel will be connected to the AEC metering unit using LT cables.

2 CONTRACTORS SCOPE OF WORK

2.1 The Contractors scope for this tender shall include Supply, Installation, Testing and

Commissioning of Complete Electrical System in the Swimming pool area and external arealighting. The work shall include mains cabling and feeding power to various pumps. The

work shall include supply of all equipments and materials at site as required for Electrical

installation work, LT Power Distribution, Indoor Lighting, Wiring, area lighting, electrical

feeders and cables for feeding power to buildings for Power Receptacles, lighting, Complete

cabling system, Earthing System, lighting poles, Communication System, etc. as required for

all infrastructure facilities and other utilities including storage facilities at site, handling,

transportation of equipment and material from contractors stores/warehouse to the site of

installation , installation, testing and commissioning of complete electrical system including

supply of required commissioning spares.

2.2 Scope of work shall include supply, installation, testing and commissioning of all equipment

and systems to meet the requirement defined in specifications, data sheets and drawings

attached with the tender and required for completion of the job including but not limited to

the same.

2.3 Engineering activities to be performed by contractor shall include but not be limited to the

following as relevant to the scope of work included in the project specifications:

a) Collection of data from site / Owner as required for carrying out residual engineering and

co-ordination with Architect / Consultant and other agencies working at site.

b). Preparation of shop inspection and testing procedures

c) Preparation of Field testing and commissioning procedures

d) Preparation of As-built drawings.

e) Other activities listed in data sheet.


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f) Any other work/activity which is not specifically listed but is necessary for completeness

of electrical system

2.4 All work to be performed and supplies to be effected as a part of contract shall require

specific review of owner or his authorized representative as per vendor data requirement.

2.5 Installation, testing and commissioning of the entire system.

2.6 Obtaining clearance for energizing the complete electrical facilities covered under this

tender and approval of installation / drawings and documents from Central Electrical

Authority / Inspectorate and any other concerned approving authority.

2.7 Contractor shall include the liaison work for getting approval and permissions of necessary

documents and drawings from Electrical inspector office, Electricity Supply Company and

any other Statutory Authorities for the entire electrical installation and following up with

Electricity Supply Company for getting power as per the schedule given by Owner. Owner

shall pay all statutory fees towards these works.

2.8 Drawings pertaining to the installation shall also be got approved by the contractor from the

Licensing Authorities / Electrical Inspector as a part of the scope of work.

2.9 Contractor shall furnish the list of recommended spares along with quantity and unit price

for all equipment as required for operation and maintenance of the entire electrical

system for two years.

2.10 Commissioning spares as required shall be included and supplied.

2.11 Temporary construction power system as required shall be arranged by the contractor by

means of adequately rated portable D.G sets (if not arranged by Owner). Area lighting as

required during construction phase of the contract shall also be included. Client is not

responsible to provide the required construction power and water supply to the

contractor.

2.12 Any work not explicitly mentioned but nevertheless required to fulfil the following

minimum requirements shall be deemed to be included in the scope of the contractor with

no additional cost/time implication to the owner:

- To meet the requirements of statutory approving authority

- To ensure equipment and personnel safety

- To suit site facilities and environmental conditions

- To co-ordinate with other contractors / agencies involved at site for other activities/site

works.

2.13 The scope of work shall also include taking delivery of the free supply items (if any) for

the installation of the system including associated electrical utility services required to

make the system operative within the scheduled time.


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2.14 All supervisory, skilled and unskilled labour, materials and testing and commissioning of

the installation are part of the scope of this Contract.

Contractor shall include in the price, cost of supply, installation and testing and

commissioning of the entire system, including materials and labour, within his scope.

Contractor will not ask for any extra cost from the Owner at later date in respect of such

items implicitly covered in the scope of work.

The provision of all testing instruments / kits for testing and commissioning of the system

shall be arranged by the contractor as a part of his scope of work.

2.15 Incase of any conflict amongst various documents attached with the tender, the order of

priority shall be as follows:

Execution Drawings Specific requirements vide bill of materials Contractors scope of work Consultants specifications for relevant equipment / packages

3 LIST OF FREE SUPPLY ITEMS BY OWNER

Not Applicable

4 DEVIATIONS

The Contractor shall indicate in his bid any deviation from these specifications while

quoting his price. Otherwise, it will be considered that the specifications have been

accepted by the contractor in total.

5 CHANGES IN SCOPE OF WORK

Owner shall be free to alter, add to or delete any part of the job without any compensation

to the contractor, in case the contractor fails to provide sufficient labour / materials under

his scope for the execution and completion of the work on schedule as per owners

assessment.


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6 SET OF DOCUMENTS / INFORMATION TO BE PROVIDED BY CONTRACTOR.

6.1 Information to be provided along with the Contract

i) Photo copy of valid electrical contractors license for the area / State of the

Project.

ii) List of qualified engineers with designation and work experience.

iii) List of electrical tools, testing equipment / instruments in possession.

iv) List of the years, clients and capacities of the electrical systems installed in MVA.

6.2 Documents to be submitted immediately after the date of award of contract

i) Field quality assurance plan with time schedule for each activity of electrical

installation work.ii) Samples / technical details of equipment / materials to be supplied by the

contractor.

iii) List of construction / working drawings to be submitted for approval of local

Statutory Authority.

iv) Detailed Site organisation chart showing the information of the personnel to beproposed to deploy at site along with their detailed bio-data.


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SAFETY REGULATIONS


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SAFETY REGULATIONS FOR THE TEMPORARY ELECTRICAL INSTALLATIONS DURING

CONSTRUCTION ACTIVITY AT SITE

It will be the responsibility of the Contractor to provide and maintain any temporary Electrical

installation he may intend to execute with due regard of safety at site.

All Switchgears, Cabling, Wiring, equipment, installations, etc. shall comply in all respects with the

latest statutory requirements and safety provisions, i.e. as per The Indian Electricity Act, The Indian

Electricity Rule, Guide lines laid down in respective Indian Standards, National Electricity Codes.

The contractor shall ensure that all his equipments and electrical wiring, etc. for any construction

activity is installed, modified, maintained by a licensed Electrician / Supervisor. A test certificate

shall be produced to the Owner / their Representative for his approval before charging the

Electrical system.

At all the times, the above regulations shall be followed by the Contractor, failing which the Owner

has a right to disconnect the power supply with out any prior notice to the Contractor. No claim

shall be entertained for such dis-connection by the Owner / their Representative. Power supply will

be reconnected only after production of fresh certificate from authorised electrical supervisor.

The Owner is not liable for any loss or damage to the Contractors equipment as a result of variation

in voltage, frequency or any interruption in power supply or other loss to the contractor arising

there from.

The contractor shall ensure that the Electrical equipments installed by him are such that the

average power factor does not fall below 0.90 at his supply point. Incase power supply falls below

0.90 in any month, he will reimburse to the Owner at the panel rate determined by the Owner for

all units consumed during the month.

The contractor will have to provide and install his own light and power meters which will be

governed as per the rules laid down by the respective Power supply Authority. The meters shall be

sealed by the Owner / their Representative.

Incase of damage of any of the Owners / other Contractors equipment on account of fault,

intentional or unintentional on the part of the Contractor, the Owner reserves the right to recover

the cost of such damage from the Contractors bill. Cost of any repair or maintenance at the

Owners / other contractors end due to any fault in the Contractors installation shall be to

Contractors account at the rate decided by the Owner / their Representative.


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Tenderer shall indicate the total requirement of construction power as single point power supply in

his tender.

Contractor should strictly follow the guide lines mentioned as below: -

All panel boards, cabling, wiring, motors, lighting, hoisting equipment and other dangerous

installations should be provided with efficient safeguards and protections. Adequate precautions

should be taken to reduce / minimize the risk of any hazard or accident.

All the Switchgears, Protective devices should be sized properly to feed the required load as well as

to provide the perfect over current, short circuit and earth leakage protection. All the power and

lighting distribution feeders shall be provided with either earth leakage relay (ELR) or with earth

leakage circuit breaker (ELCB) with maximum leakage sensitivity of 100mA.

All the cables and wires laid shall be mechanically protected and shall be laid in a manner to avoid

any accidental hazard. The cables and wires shall have damage and puncture free insulation and

conductor size should be properly selected to feed the required load current with out causing any

damage to the switches and cable insulation. There should not be any loose, unprotected joints (by

means of PVC tape, connector strips, etc.) on the cables / wires.

All the panel boards, Power switch sockets should be of metal clad type and weatherproof type (if

located outside) and shall be installed at a min. height of 1.5 mtr. from the floor level. The doors of

all the panel boards, switches, plug sockets should be always kept in closed condition to avoid any

accidental access to the live terminals.

Power sockets should have interlock facility in such a manner the insertion or removal of plug can

not be possible when switch is ON condition.


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Specifications for

MV Switchgear Panel


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List of Contents

Specifications for MV Switchgear Panels

1 SCOPE

2 CODES AND STANDARDS

3 GENERAL REQUIREMENT

4 MAIN BUS BARS:

5 CIRCUIT BREAKERS

6 AIR BREAK SWITCHES

7 FUSES

8 MOTOR STARTERS

9 SINGLE PHASING PREVENTERS

10 INSTRUMENT TRANSFORMERS

11 INSTRUMENTS

12 PROTECTIVE RELAYS

13 AUTOMATIC POWER FACTOR CORRECTION RELAYS

14 MISCELLANEOUS ACCESSORIES

15 INTERNAL WIRING

16 TERMINAL BLOCKS

17 EARTHING

18 TESTS

19 INSPECTION

20 GUARANTEE

21 DRAWING AND INSTRUCTION MANUALS

22 APPROVED MAKE OF SWITCHGEAR EQUIPMENT/COMPONENTS.

23 DATA SHEET FOR MEDIUM VOLTAGE SWITCHGEAR PANEL


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1 SCOPE

1.1 This specification covers the requirement for Medium Voltage (MV) Switchboardor Main LT Panel or Power Control Centre (PCC), Motor Control Centre (MCC) orthe combination of both of these (PMCC) and Power Distribution Board required

to distribute power in the plant / building at medium voltage.

1.2 The enclosed drawings and / or data sheets form part of the specification.

1.3 The drawings and specifications complement each other and what is shown or calledfor in one shall be interpreted as being called for in both. Material(s), if any, whichmay have been inadvertently omitted but fairly implied as required to make acomplete assembly of the switchgear as shown in the drawing and the specificationto make the unit properly operational shall be construed as required and coveredin the Vendors scope.

1 CODES AND STANDARDS

2.1 The design, manufacture and performance of the equipment shall comply with allIndian Standards, I.E. Rules, Statutory Regulations and Safety Codes currentlyapplicable in the locality where the equipment will be installed.

2.2 Unless otherwise specified, the equipment shall conform to the latest applicableIndian Standards and, in particular, the following:

i) IS:13947 - Low voltage switchgear and controlgear.(Part-1 to 5)

ii) IS:9224 - Low Voltage Fuses

iii) IS:2705 - Current Transformers

iv) IS:3156 - Voltage Transformers

v) IS:3231 - Specification for electrical relays for power systemprotection.

vi) IS:4237 - General requirements for switchgear andcontrolgear for voltages not exceeding1000V A.C.

vii) IS:1248 - Direct-acting electrical indicating instruments.

viii) IS:5578 - Guide for marking of insulated conductors.

ix) IS:11353 - Guide for uniform system of marking and

identification of conductors and apparatusterminals.

x) IS:8623 - Specifications for factory-built assemblies ofswitchgear and controlgear (up to 1000 Volts. A.C.)


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2 GENERAL REQUIREMENT

3.1 All identical equipment and parts shall be interchangeable.

3.2 The switchgear shall consist of indoor, floor-mounted, metal-enclosed,compartmentalised (if not indicated specifically in data sheet), modular type,totally front side operated vertical sections.

3.3 It shall be dust and vermin proof and shall be easily extensible on both sides.

3.4 All doors and removable covers shall be gasketed all around with neoprene gaskets.

3.5 Each vertical section shall comprise the following:

3.5.1 Metal-enclosed busbar compartment, running horizontally throughout thelength of the switchgear.

3.5.2 Individual feeder modules in multi-tier formation.3.5.3 Shrouded main and vertical busbars and individual feeder connection.3.5.4 Vertical cable alley and busbar alley with doors or covers covering the

entire height of the feeder module panel.3.5.5 Horizontal wire way for control wiring.3.5.6 Space heater with thermostat and MCB in each vertical panel.3.5.7 Sheet steel barrier between two adjacent vertical sections except for

horizontal bus bar compartments.3.5.8 Separate door for each feeder module.3.5.9 20 % additional space in the panel (in terms of vacant feeder compartments

of various sizes), to accommodate the future requirement, if any.3.5.10 totally front operated panel, i.e. cable and busbar alleys of suitable sizes

(minimum 300 mm width) shall be on the panel front side only.3.5.11 Each vertical panel should be divided into the distinct zones for busbars,

feeders, power cabling, control cabling and power & control terminals.

3.6 The switchgear unit shall consist of rigid structural frame enclosed by 2 mm thickcold rolled (CRCA) sheet steel. Doors and covers shall be of 1.6 mm thick cold rolled(CRCA) sheet steel. Structural framework with foundation bolts, etc. at the bottomshall be provided to mount the switchgear directly on concrete/steel channel base.

3.7 The switchgear shall be provided with removable cable gland plate (of minimum 3mm thickness), with brass cable glands and crimping type cable lugs, as indicated inthe data sheet.

3.8 Separate metal labels shall be provided for switchgear modules, relays,instruments, switches, etc. Approval for the type of label shall be taken from theOwner/Consultant.

3.9 Control switches, push buttons, indicating lamps, meters and relays shall bemounted on the front door. Current Transformers (CTs) and Voltage Transformers(VTs) shall be mounted on the fixed portion. For fully drawout / semi drawoutexecution, all other equipment shall be mounted on withdrawable chassis withsuitable guides for easy withdrawal.

3.10 Painting shall be done by surface coating comprising pre-treatment, electrostaticpowder spraying and curing. The surfaces to be coated shall be chemically de-rusted and degreased at a temperature of 70o to 80oC, zinc phosphatised and thenpassivated at about 60oC and, after proper drying, subjected to spraying of powdercharged at about 90 KV through electrostatic guns. Curing shall be done in stovingoven at 180o to 200o C for 12 to 15 minutes ensuring a uniform and continuouscoating. The colour of the shade shall be 631 of IS 5.


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3.11 Feeder control and motor control equipment not incorporating circuit breaker shalleither be of fully drawout, semi drawout or fixed type execution, as specified in thedrawing/data sheet.

3.11.1 In the case of fully drawout type withdrawable chassis, all electrical power andcontrol connections shall be of plug-in type.

3.11.2 In the case of semi drawout type withdrawable chassis, all electrical powerconnections shall be of plug-in type. All control connections shall be of screwing-intype.

3.12 300 mm clearance shall be provided between the finished floor and the bottom ofthe lower most feeder compartment.

3.12 Panel lifting lugs shall be of removable type and to be fixed with panel using boltsand nuts.

3 MAIN BUS BARS:

4.1 Main bus bars shall be of uniform cross section in aluminium or copper as specified

in the drawing/data sheet.

4.2 Wherever aluminium to copper connections is required, suitable bimetallicconnections/clamps shall be provided.

4.3 Maximum temperature of the bus bars and the bus connections shall not exceed85oC.

4.4 The bus bars shall be provided with heat shrinkable sleeves and colour coded foridentification.

4.5 Separate supports shall be provided for each busbar. If common support is providedfor all busbars, anti-tracking barriers shall be incorporated.

4.6 In order to avoid any accidental hazards, busbar compartments shall be protectedwith 3 mm thick hylem / Bakelite sheets.

4.7 The size of the neutral busbar shall be similar to that of phase busbars in the caseof Main L.T. Panels, PCCs, PMCCs, PDBs, Main and Sub Lighting DBs. However, theneutral busbar shall be of half size that of phase busbars in the case of Motorcontrol centres.

4 CIRCUIT BREAKERS

5.1 AIR CIRCUIT BREAKER

5.1.1 These shall be air-break, fully draw-out type, and shall consist of the following:

5.1.2 Shunt and/or series trip as specified in drawing/data sheet. Co-ordination shall beensured between successive breakers.

5.1.3 Mechanical OPEN/CLOSE position indicator, visible with door closed.

5.1.4 Emergency trip push button.

5.1.5 `Red, `Green and `Amber indicating lamps for Breaker ON, Breaker OFF andBreaker trip on fault.


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5.1.6 There shall be `Service, `Test and `fully withdrawn positions for the breakersalong with their indications on the breaker front facia.

5.1.7 Electrical and Mechanical anti pumping and over & under voltage trip facilityshould be provided.

5.1.8 It shall be possible to with-draw the breaker only in open position.

5.1.9 Compartment door of the breaker shall not open unless the breaker is in openposition.

5.1.10 Automatic safety shutters shall be provided to cover live contacts when carriage iswithdrawn.

5.1.11 Relays shall have potential-free contacts.

5.1.12 Facility shall be provided for blocking under-voltage releases.

5.1.13 Manual operating mechanism shall be of spring charged stored energy type orspring assisted type, independent of the speed at which the handle is operated.

5.1.14 Power-operated mechanism shall be of motor-wound spring-charging storedenergy type. Emergency manual charging facility shall also be provided.

5.1.15 Indicators shall be provided to show `charged and discharged conditions of thespring.

5.1.16 The operating mechanism shall be trip-free.

5.1.17 The breaker shall be provided with the microprocessor based release with breakercontrol through RS 485 port and communication with PC through universally usedprotocol if asked for in the drawing.

5.1.18 The Micro processor release should have over current / short circuit and earth

fault protections along with their indications due to which the breaker hastripped.

5.2 MOULDED CASE CIRCUIT BREAKER

5.2.1 The moulded case circuit breaker (MCCB) shall be air break type and having quickmake quick break with trip free operating mechanism.

5.2.2 Housing of the MCCB shall be of heat resistant and flame retardant insulatingmaterial.

5.2.3 Rotary type operating handle of MCCB shall be provided in front and should clearly

indicate ON/OFF/TRIP positions and should have padlocking facility.

5.2.4 The electrical contact of the MCCB shall be of high conducting non deterioratingsilver alloy contacts.

5.2.5 The MCCB should have shunt trip release, earth fault release with adjustablecurrent setting facility and mechanical interlock facility. Incase of MCCB with EarthFault Protection, CBCT shall be of cast resin type and of the same make of MCCB.


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5.2.6 The MCCB should be provided with adjustable type thermal overload release andadjustable type short circuit protection device. All the release shall operate oncommon trip busbar so that in case of operation of any one of the releases in any ofthe three phases, it will cut off all the three phases and thereby single phasing ofthe system is avoided.

5.2.7 The MCCB wherever called for in the appended drawings shall provide an earth faultrelay.

5.2.8 The MCCB shall provide required sets of extra auxiliary contacts for the indicationcircuit, control circuit and for remote signalling purpose and should have inbuiltindications for tripping due to over current, short circuit or earth fault.

5.2.9 The electrical parameters of the MCCB shall be as per the description given in theappended drawings

5 AIR BREAK SWITCHES

6.1 Switches shall withstand a short circuit current of value equal to the let-through

current of the associated fuse for 1 second and peak short circuit current equal tocut-off current of the fuse.

6.2 Switches of motor feeders shall be of motor duty (AC23A), group-operated, fault-make, load-break type. All other switches shall be of heavy-duty type. All theSwitches shall be provided with phase barriers and auxiliary contacts.

6.3 Switch handle shall have padlocking facility in `OFF position.

6.4 It shall be possible to open the door only when switch is in `OFF position and itshall not be possible to close the switch when the door is open. However, defeatmechanism shall be provided for inspection purpose.

6

FUSES

7.1 Fuse shall be of HRC cartridge plug-in type, with visible indication of operation.

7.2 1 no. fuse pulling handle shall be provided for each Switch-board / Power ControlCentre / Motor Control Centre.

7 MOTOR STARTERS

8.1 Contactors

8.1.1 Contactors shall be air break, double break, single throw, electromagnetic type.

8.1.2 Main contacts shall be of silver faced copper.

8.1.3 Minimum Two `N.O. and two `N.C. auxiliary contacts shall be provided for eachpower contactor. However, additional nos. of auxiliary contactors should be addedin the control scheme as per the requirement.

8.2 Direct-on-line (DOL) starters


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DOL starters shall be suitable for AC3 utilisation category as per IS : 13947(Part-4/Sec-1)

8.3 Automatic star delta starters

8.3.1 These starters shall comprise three sets of contactors and a timer relay.

8.3.2 Starters shall be suitable for AC3 utilisation category as per IS: 13947 (Part-4 /Sec-1).

8.4 Reversing Starters Not Applicable

8.4.1 Forward and reverse contactors shall be mechanically and electrically interlocked.

8.4.2 Reversing starters shall be suitable for AC4 utilisation category as per IS:13947(Part-4/Sec-1)

8.5 Thermal Overload Relays

8.5.1 Starters shall be complete with three-element, ambient temperature compensated,time-lagged thermal overload relays with adjustable settings.

8.5.2 Thermal overload relays shall be of Auto / hand reset type. A hand reset pushbutton, separate from the stop push button, shall be brought out on the frontof the compartment door.

8.6 Micro Computer Motor Protection Relay Not Applicable

8.6.1 Starters shall be complete with Micro computer based Motor protection relay withdisplay facility for the motors of 20HP and above rating and without display formotors below 20HP rating.

8.6.2 The relay shall have over current protection (with medium tripping characteristics),Under current protection, Instantaneous short circuit protection, Single phasing

protection, Current unbalance protection - for all the ratings of motors and for

motors above 75HP ratings, in addition to the above standard protections, the relay

should be provided with Stator Ground Fault Protection, over temperature

protection and locked rotor protection.

8 SINGLE PHASING PREVENTERS

Separate single phasing preventer also shall be provided in the starters. The relay shall becurrent operated and hand reset type with separate hand reset push button.

9 INSTRUMENT TRANSFORMERS

10.1 CTs and VTs shall conform to the requirement of IS:2705 and IS:3156respectively. The ratings specified are indicative only and it shall be Vendorsresponsibility to ensure that the ratings offered are adequate for the relays/metersprovided considering lead resistance, etc.

10.2 CTs and VTs shall be of dry air insulated type.

10.3 Facility shall be provided in the terminal blocks for shorting and earthing the CTs.

10.4 VTs shall be provided with adequately rated primary and secondary fuses.


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10 INSTRUMENTS

11.1 Indicating instruments shall be of Digital type, Minimum 96 x 96 Sq.mm size,suitable for flush mounting.

1. Watt-hour and Var-hour meters shall be suitable for 3 phase, 4 wire system,balanced as well as unbalanced load and suitable for semi-flush mounting.

2. All KWH meter shall have computer interface facility through RS 485 port.11 PROTECTIVE RELAYS

12.1 Relays shall be Micro processor based and suitable for flush or semi flushmounting with connections from rear. Protective relays shall be indrawout cases. Load Analyser / Load manager shall have Communicationport to interface with the Plant DCS / Control room.

12.2 All protective and tripping relays and timers shall be provided with faultdisplay LEDs.

12 AUTOMATIC POWER FACTOR CORRECTION RELAYS

APFCR Panel shall have intelligent Microprocessor based relay, 12 steps based on therequirement. The relay shall have auto manual selection feature and shall adapt thedirection of CT besides, it shall possess salient features like

13.1 Auto self adjustment to any capacitor step value13.2 Multiple LCD data indication of Power factor at each phase(lead/lag), KW, KVA,

KVAR, Voltage, Load Current at each phase, Capacitor current at each phase,Injected KVAR to reach target power factor, Frequency, etc. incl. of all presetparameters & specified installation data

13.3 Automatic Self-adjustment for C/K value.13.4 Three phase sensing suitable for three phase-unbalanced loads.13.5 Operation time delay facility for 10-240 sec.13.6 Memory back up to save the data in the event of power failure.13.7 Alarm output for Capacitor or Contact failure, abnormal values of voltage, current,

KVAR, Power factor, Temperature, Frequency, etc.

13.8 No-volt relay features to immediately disconnect all capacitors in the event of

power failure.13.9 Various protections i.e. over temperature, over harmonics, overload, etc.13.10 Remote fault alarm indicator.

13.11 Power factor correction fault.13.12 Facility to connect computer.13.13 RS 232 serial port.


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14.1 Breaker control switch shall be :- Spring return-to-neutral type with pistol grip handle- Lockable in neutral position.

14.2 Indicating lamps shall be multiple LED type made from FR typepolycarbonate material with Low voltage glow protection (up to 50V) andtranslucent lamp covers. Lamps shall be replaceable from front. The powerconsumption of each indicating lamp should not exceed 0.5 Watts.

14.3 Push buttons shall be momentary contact type rated for 10A at 500 V AC.The colour of push buttons shall be as follows:

Start - GreenStop (stay put, mushroom, lockable type) - RedAll others - Black

All push buttons are required to have functional labels.

14.4 Alarm Annunciator

14.4.1 Alarm Annunciator shall be provided, if specified in drawing/data sheet.

14.4.2 Alarm Annunciator shall comprise flush mounted facia units with twolamps and series resistor and ground glass plate in front for inscriptions.

14.4.3 Alarm annunciation scheme shall include facia units with relay for eachfault, a common alarm bell and Accept / Reset / Test Push buttons.

14.4.4 The alarm annunciation scheme shall operate as follows :

Condition Visual AudibleNormal Off Off

On occurrence of fault Flashing On

Acknowledge fault Steady Off

Reset, Fault Cleared Off Off

Reset, Fault Not Cleared Steady Off

Lamp test Steady Off

Alarm Annunciation test Flashing On

14 INTERNAL WIRING

15.1 All wiring inside the switchgear shall be carried out with 650V grade FRLSPVC insulated flexible stranded copper wires. Minimum size of conductor forcontrol wiring shall be 2.5 mm2 Copper.

15.2 Ferrules shall be provided on each wire.

15.3 All wiring shall be terminated on terminal blocks with crimping type Coppercable lugs.


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15.4 Power connections above 100A shall be carried out with PVC insulatedcopper links.

15.5 Vertical / horizontal Al. wire ways shall be provided to run the control wireswithin the same vertical panel and / or between different vertical panels.

15 TERMINAL BLOCKS

16.1 All terminal blocks for power and control circuits shall be of 650Vgrade stud type and shall be properly separate from each other.

16.2 Terminal blocks of different voltage groups shall be segregated and suitablylabelled.

16.3 Terminals shall be numbered as per wiring diagrams.

16.4 20% spare terminals shall be provided.

16.5 Shorting links shall be provided for all C.T. terminals.

16 EARTHING

17.1 An earth bus extending throughout the length of the Switch-board / PCC / MCC/PMCC / DBs / APFCR Panel shall be provided.

17.2 The earth bus shall be of sufficient cross section to carry safely momentary shortcircuit current for 3 sec.

17.3 All non-current carrying metal parts shall be effectively bonded to the earth bus.

17 TESTS

18.1 Vendor shall test the switchgear to conform to IS: 4237 with all componentsassembled and fully wired.

18.2 The following routine tests shall be carried out on all the components and theassembled switchgear, as per relevant standards :-

a) Mechanical and Electrical Operation tests by simulating operating conditionsas at site.

b) High voltage test (2.5 KV for one minute).c) Test for verification of calibration of releases thro primary injection test.d) Insulation resistance test.e) Test for verification of calibration of protective relays thro secondary

injection test

18.3 Seven (7) copies of the routine and type test certificates shall be submitted forOwners approval before despatch of the switchgear

18 INSPECTION

19.1 Inspection, including witnessing routine tests, will be carried out by Owner /Consultant or their authorised representatives.


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19.2 Vendor shall notify Owner or his authorised representative(s) in writing at leastfifteen (15) days prior to the schedule for inspection and tests.

19 GUARANTEE

Vendor shall guarantee the design, materials, workmanship and performance of all goods to

be supplied under the order for a period of twelve months (12) from the date of initialoperation or eighteen (18) months after delivery at job site, whichever earlier.

20 DRAWING AND INSTRUCTION MANUALS

21.1 Vendor shall submit two sets of G.A. drawings, bill of quantities, make ofmaterials, standard product catalogues, etc., along with the initial offer and four(4) sets of the following drawings for approval after award of contract :

21.1.1 Complete assembly drawing of the switchgear, showing plan, elevation and typicalsections with dimensions and location of terminals for external connections.

21.1.2 SWITCHGEAR elevation and layout plan with floor openings and floor fixing

arrangements.

21.1.3 Schematic diagrams with terminal and ferrule numbers for eachmodule/switchboard panel.

21.1.4 Wiring diagram for each module indicating terminal blocks and various apparatus.

21.1.5 Final list of apparatus for each module.

21.1.6 Manufacturers descriptive literature on various components used in theswitchgear.

21.2 One print of each drawing will be returned to vendor with comments and requiredclarifications, if any. Vendor shall incorporate these and send within fifteen days,

seven prints of each drawing marked Certified for record and use.

21.3 Vendor shall also submit seven (7) copies of `Installation and Instruction manual.


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21 APPROVED MAKE OF SWITCHGEAR EQUIPMENT/COMPONENTS.

Unless approved in writing, equipment/components of following makes only shall beacceptable:

Moulded Case Circuit Breaker (MCCB)ICs = 100% ICu : L&T DH, D Sine / SIEMENS - 3VL /

Schneider Equivalent / Control &Switchgear - equivalent

Switch Disconnectors Fuse UnitsAC23A Duty : L&T - FNX/ SIEMENS 3KL8 / Schneider -

Equivalent / Control & Switchgear -equivalent

Contactors and O/L RelaysAC3 Duty : L&T MNX / SIEMENS -3TF / Schneider -

Equivalent / Control & Switchgear -

equivalent

Push Buttons : L&T / SIEMENS / Teknic / Schneider

Indicating lamps : L&T / SIEMENS / Teknic / Schneider

Load Manager/Multi function meter : Enercon (Conserve) / L& T / Trinity /

Meters : Enercon (Conserve) / L& T / Trinity /Meco/AE

HRC Fuses & base : L&T / SIEMENS / GE

Terminals : Elmex / Connectwell / Phoenix

Timers : L&T / SIEMENS / ABB

MCB : L&T/SIEMEN / Havells / Schneider/Indoasian

ELCB : L&T/SIEMENS/Havells / Schneider/indoasian

Wires : Finolex / Avocab / polycab / RR Cabel/Lapp

Capacitors : Neptune Ducati, EPCOS, L&T, Asian,Schneider

Protective Relays : Areva / ABB / CSPC / L&T

Selector Switches : Salzer / Kaycee

Final selection of the make will remain with the Client / Consultant.


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DATA SHEET FOR MEDIUM VOLTAGE SWITCHGEAR PANEL

1.0 SITE CONDITIONS.

1.1 Maximum ambient temperature : 47 Degree C

1.2 Minimum ambient temperature : 06 Degree C

2.0 OPERATING CONDITIONS

2.1 Voltage : 415V + / - 10 %

2.2 Frequency : 50 Hz + / - 3 %

2.3 No. of phases : Three

2.4 System fault level : 35 KA at 415V for 1 Sec.

2.5 System earthing : Solid Earthing

2.6 Control supply :

For ACB Closing and Tripping Coils : 110V AC at MLTP. 240V AC at other PanelsFor Protective Relays : 110V ACFor indicating lamps : 110V AC at MLTP. 240V AC at other PanelsFor Alarm / Hooter : 110V AC at MLTP. 240V AC at other PanelsFor Panel illumination lamp : 240V ACFor Thermostat : 240V ACFor Contactor coils : 240V AC

3.0 ELECTRICAL DATA

3.1 1 sec short circuit withstand capacity : As Per SLDs / Data sheet

3.2 Busbar current rating inside panel at : As indicated in the drawings / DatasheetSpecified ambient temperature

3.3 Busbars : Electro grade AluminiumSleeved (heat shrinkable)

3.4 Busbars current density : 1 Sq.mm = 0.8 Amp

3.5 Busbars location : at Top / Bottom section of the Panel

3.6 Cable entry (Incoming & Outgoing) : Shall be informed later

3.7 Earth bus size and material : 50 x 6 Sq.mm, Aluminium

3.8 Busbars and cable alley : On front side of the panels

3.9 Cable sizes : As indicated in the drawings / Datasheet

3.10 Colour shade : Powder coating shade shall be 631 of IS 5

3.11 Feeder arrangement : All panels are Single front type Frontoperated


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3.12 Floor fixing : Integral base frame

3.13 Degree of protection for panel : IP 44 enclosure

3.14 Maximum operating height : 1800 mm

3.15 Maximum Panel height : 2300 mm


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TO BE FILLED UP BY VENDOR ALONG WITH OFFER

1.0 Make :

2.0 Type/designation :

3.0 Degree of protection :

4.0 Overall weight of complete Panel : kg

5.0 Overall dimensionsLength : mmDepth : mmHeight : mm

6.0 Overall weight and dimensions of largest shippingsectionWeight : kgLength : mmDepth : mmHeight : mm

7.0 Recommended clearancesFront : mmRear : mmAbove : mm

8.0 Clearance in air of main busbars.Phase to phase : mmPhase to earth : mm

9.0 MAIN BUSBAR DETAILS :

9.1 Busbar current rating at design temperature(50 Degree C) :

9.2 Main busbar material :

9.3 Main busbar size :

9.4 Main busbar location :

10.0 Vertical Busbar Details:

10.1 Current rating/size :

11.0 Insulating material :

12.0 Earth bus size/material : Sq.mm

13.0 1 min power frequency voltage : KV

14.0 1 sec.short circuit withstand capacity : KA

15.0 Peak dynamic withstand capacity : KA

16.0 AIR CIRCUIT BREAKER

16.1 Make & Type (s)


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16.2 Rated voltage & frequency

16.3 Normal current under site condition

16.4 Rated making capacity

16.5 Rated breaking capacity

16.6 Rated short time rating for 1.0 sec.

16.7 Duty cycle

16.8 Type of operating mechanism

16.9 Voltage and power rating for operatingmechanism closing coil trip coil

16.10 Operating time

16.10.1 Closing time

16.10.2 Opening time

16.11 Fixed trip/ trip free

16.12 Number and Rating of breaker auxiliary contacts

16.13 Details of releases, if any

17.0 CHANGE OVER SWITCH

17.1 Rated voltage, frequency & type

17.2 Rated current under site condition

17.3 Test insulation voltage

17.4 Short time with stand current for 1.0 sec.

17.5 Rated fused short circuit current

17.6 Rated operational current

17.6.1 At 415V, AC-23 duty

17.6.2 At 660V, AC-23 duty

17.7 Mechanical operations

17.8 Electrical operations (AC-23)

17.9 Rated operational power at 415V

17.10 Short circuit making capacity (Peak)

17.11 AC breaking capacity at PF 0.2 and at 415V

17.12 Rated capacitor duty Ic


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18.0 MOULDED CASE CIRCUIT BREAKERS (MCCBS)

18.1 Make & type (s) :

18.2 Rated voltage, frequency :

18.3 Normal current under site conditions :

18.4 Symmetrical interrupting current :

18.5 Short time current and duration :

18.6 Operating mechanism :

18.7 Shunt trip :

18.8 Relays / Releases :

19.0 CONTACTORS

19.1 Make :

19.2 Type designations :

19.3 Rated voltage :

19.4 Rated current :AC-3 Duty :AC-4 Duty :

19.5 Thermal rating :

19.6 Making capacity :

19.7 Breaking capacity :

19.8 DC rating :

19.9 Switching frequency : Operations/hour

19.10 Life :Electrical : Operations (at rated voltage)Mechanical : Operations.

19.11 Coil consumption-pick up : VA at P.F.

19.12 Coil consumption-Hold on : VA

19.13 Closing time : Secs.

19.14 Opening time : Secs.

19.15 No.of aux.contacts : To be provided as required.

20.0 SWITCHES

20.1 Rated voltage :

20.2 Rated current :


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20.3 AC23A rating :

20.4 Rated making capacity :

20.5 Rated breaking capacity :

20.6 Rated short circuit withstand current

with max.permissible rated fuses :

20.7 Mechanical life :

NOTE : Above particulars are required for each rating of switch offered.

21.0 THERMAL OVERLOAD RELAYS

21.1 Make/type :

21.2 Setting range :

21.3 Type of operation : Direct/CT operated

22.0 ANY OTHER SWITCHGEAR, IF ANY.


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Specifications for LV

Cables


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List of Contents

Specifications for LV Cables

1 General

2 Code and Standards

3 Climatic Conditions

4 Constructional Requirement

5 General Requirements

6 Inspection

7 Tests

8 Guarantee

9 Instruction Manual

10 Data Sheet / List of Cables

11 Quality Assurance

12 Deviation


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1 General

These specifications are for 650/1100 Volts grade solid/stranded,

copper/aluminium conductors, PVC / XLPE insulated and sheathed galvanised

round/flat steel wire armoured and PVC overall sheathed cables.

2 Code and Standards

2.1 The cables shall comply with all currently applicable Standards, Electricity Rules,

approval of Fire Insurance Association and Electrical Inspector.

2.2 Unless otherwise specified, cable shall conform to the following latest applicable

Standards.

IS : 1554 PVC insulated (heavy duty) electric cables

IS : 7098 Cross linked polyethylene insulated PVC sheathed cables

IS : 8130 Conductors for insulated electric cables and flexible cordsIS : 5831 PVC insulation and sheath of electric cables

IS : 3975 Mild steel wires, strips and tapes for armouring of cables

IS : 10810Part 41

Methods of test for cables : Mass of zinc coating on steelarmour

IS : 209 Specification of zinc

IS : 3961Part-2

Recommended current ratings for cables: Part 2 PVCinsulated and PVC sheathed heavy duty cables

IS : 10418 Drums for electric cables

IS : 10810Part 58

Method of test for cables : Part 58 Oxygen Index test

IS : 10810

Part 61

Method of test for cables : Part 61 Flame Retardant test

IS : 10810Part 62

Method of test for cables : Part 62 Fire Retardant test forbunched cables

IEC : 332-3 Tests on electric cables under fire conditions

IEC : 502 Extruded solid dielectric insulated power cables for ratedvoltages from 1KV up to 30KV

IEC : 540 &540A

Test methods for insulation and sheaths of electric cablesand cords

ASTM : D2863 Standard method of test for flammability of plastics usingoxygen index method

The cables and accessories shall also conform to the provisions of Indian Electricity Rules andrelevant statutory regulations.

3 Climatic Conditions

Cables shall be installed in air/ground, in atmosphere having maximum ambient temperature

and relative humidity as specified in data sheet.


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4 Constructional Requirement

4.1 Conductor

The material of conductor shall be Electrical grade high conductive, compacted,

aluminium / copper. Conductor shall be solid for conductor of nominal area up to

and including 4 sq.mm and stranded beyond 4 sq.mm. Conductors of nominal area

less than 25sq.mm shall be circular or shaped. Cables with reduced neutral

conductor shall have sizes as per table 1 of IS 1554 (part-1).

Strand details shall be as below:

6 to 10 sq mm [CU/AL] - 7 strands






4.2 Insulation

The material of insulation shall be with PVC compound / cross linked polyethylene

applied over the conductor by extrusion. Insulation shall be free from

contamination and water voids and shall withstand all mechanical and thermal

stresses under steady state and transient operating conditions. The thickness of

the insulation shall be as per relevant Indian standards.

Control cables having 6 cores and above shall be identified with prominent and

indelible numerals on the outer surface of the insulation. Colour of the numbers

shall be in contrast with the colour of insulation.

4.3 Inner Sheath

The inner sheath shall be applied over the cores by a method of extrusion and shall

be of PVC conforming to the requirements of Type ST-1 PVC compound as IS:5831.

The thickness of inner sheath shall be as per relevant standards. There will be no

sheath for single core cables.

4.4 Armouring

If armouring is specified for multicore cables, the same shall be single round

galvanised steel wires / galvanised steel strips as per the requirement. Ifarmouring is specified for single core cables, the same shall be with H4 grade hard

drawn aluminium round wire of 2.5 sq.mm diameter.

Requirement and methods of tests for armour material, galvanising uniformity and

dimensions of armour shall be as per relevant standards.


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4.5 Outer Sheath

This shall consist of extruded ST-1 flame retardant PVC compound having oxygen

index value of minimum 30% at 27+ 2 deg. C, is resistant to termite and rodent

attack. Outer sheath shall be of black colour, external surface of which shall be

embossed with voltage designation and manufacturers name at regular interval.

The thickness of outer sheath shall be as per IS: 1554 part 1.

Sequential marking of the length of the cable in metres shall be provided on the

outer sheath at every one metre. The embossing / engraving shall be legible and

indelible.

PVC / Rubber end caps shall be supplied free of cost for each drum with a

minimum of twenty per thousand metre length.

Outer sheath with FRLS compound shall be provided for better fire resistance.

5 General Requirements

5.1 The cables shall be suitable for laying in trays, trenches, ducts, conduits and for

underground buried installation with uncontrolled backfill and possibility of

flooding by water and chemicals. Cables shall be suitable for keeping in a proper

looped position for longer period without occurring of any damage to the

insulations and armour.

5.2 The material of conductors shall be from annealed high conductivity

copper/aluminium. The maximum conductor temperature in deg. C shall be

limited to data as specified in data sheets. Conductor shall be of either circular or

sector shaped stranded conductor or circular solid construction as specified in data

sheet.

5.3 Cables shall be supplied wound on non returnable wooden drums of heavy duty

construction and of suitable barrel diameter and shall be covered fully with

wooden battens. Wooden drums shall be properly seasoned and treated with anti

rodent material and painted with good quality paint to increase the life of the

drum. Ferrous parts used shall be treated with a suitable rust preventive finish or

coating to avoid rusting during transit or storage.

Drums shall be suitably marked with manufacturers name, customers name,

project title, cable type, size, voltage grade of cable, length of cable in metres,

drum number, IS certification mark, gross weight, rolling direction etc.

Packing should be sturdy and adequate to protect the cables from any injury due

to mishandling or other conditions encountered during transportation, handling

and storage. Both cable ends shall be sealed with PVC / heat shrinkable end caps

so as to eliminate the ingress of water during transportation, storage and erection.

5.4 Negative tolerance on cable drum length is not acceptable.


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5.5 The material of insulation shall be of PVC / XLPE as specified in Data sheet. Also

insulation of cores shall be colour coded for identification. Insulation shall be free

from contamination and voids.

5.6 Unless otherwise specified, cables shall be supplied in following drum lengths: -

Medium voltage power cables up to and including 6 sq.mm 1000 Mtr. Medium voltage power cables from 10 sq.mm up to and 500 Mtr.

including 300 sq.mm

Control cables up to and including 27 cores 1000 Mtr.

6 Inspection

6.1 The cables shall be tested and inspected at the manufacturers works. All the

materials employed in the construction of cable, before and after the

manufacture, shall be subjected to examination, testing and approval byconsultants / owners representative, The consultants / owners

representative(s) have free access to the manufacturers works for the purpose of

stage and final inspections and will have the power to accept or reject any

material on quality issues.

6.2 Contractor shall notify Owner or his authorised representatives in writing at least

fifteen (15) days prior to contractors scheduled inspection date.

7 Tests

7.1 After completion of manufacture of cables and prior to despatch, the cables shall

be subject to type, routine, acceptance and special tested as detailed below.

Consultant / Owner reserve the right to witness all the tests with a prior notice

from manufacturer. Manufacturer shall get approved all the test reports from

Consultant / Owner before despatch of the cables.

All routine tests, acceptance tests, type tests shall be carried out as per IS 1554

part 1 and IS:7098 part 2.

The inner and outer sheath of XLPE cables shall be subjected to all the tests

applicable for PVC cables. The test requirements for insulation and sheath of PVC

cables shall be as per IS:5831.

7.2 Seven (7) copies of type test and routine test certificates shall be submitted for

customers approval before despatch.


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8 Guarantee

Vendor shall guarantee design materials/workmanship and performance for a

period of twelve (12) months from the date of commissioning and handing over the

installation to the Owner, duly certified by the site-in-charge. Owner

representative for satisfactory operation of the equipment or 18 months from the

date of receipt of material at site, whichever is earlier.

9 Instruction Manual

Catalogues giving all technical details and instruction booklets on installation in

seven (7) copies such shall be furnished. Cables shall be packed suitably to

facilitate installation / transportation and to prevent damage during

transportation.

10 Data Sheet / List of Cables

The enclosed data sheets & list of cables indicate detailed technical requirementand bill of quantities / material takes off.

11 Quality Assurance

Vendor shall submit their internal quality assurance plan followed for

manufacturing of the equipment for approval of owner / consultant this shall be

adhered to and shall be monitored by owner consultant during manufacture.

12 Deviation

12.1 Deviation from specification must be stated in writing at the quotation stage.

12.2 In the absence of such a statement, it will be assumed that the requirements of

specification are met without any deviation.


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Specifications for

Lighting Panel

(MCB Distribution

Boards)


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SPECIFICATIONS FOR LIGHTING PANELS (MCB DISTRIBUTION BOARDS)

1 SPECIFICATIONS

Relevant Indian Standard Specifications and Codes shall apply for Lighting PanelBoards and their components wherever such Standard Specifications exist. The panel

shall be approved by the Fire Insurance Association.

Lighting Panels shall be generally comprised of Isolators, MCBs, ELCBs, ELMCBs and

HRC fuses (if asked for in BOQ), Potential Indicating lamps, set of separate phase

terminal strips, Neutral terminal strip and Earthing terminal strip and any other

components as indicated in the Bill of quantities

2 GENERAL REQUIREMENTS

i) Lighting panels shall be made of 14SWG sheet steel and painted with powder

spray to prevent corrosion.

ii) Lighting panels shall have properly hinged cover of min. 2 mm thick CRCAsheet on its front so that all the Electrical components and accessories can

be accessed only after opening of the front cover.

After opening of the front cover, the panel shall have another hinged door made of

min. 2 mm thick CRCA sheet with necessary cut-outs for mounting the all Electrical

components with adequate clearances.

The Panel shall be suitable for Top / Bottom entries for incoming and outgoing

Cables/Circuits. The incoming Switchgear component shall have suitable provision

for terminating a looping cable (of max. 50 sq.mm size) for feeding to another Panel

in the zone.

All the Panel wiring shall be carried out using 660/1100V grade FRLS insulated,

flexible, multicore Copper conductors of reputed make and of rating considering the

respective Isolator / MCB/ ELCB rating with all derating factors.

(iii) The Switchgear components such as MCB, ELCBs, etc. shall be of 10KA

breaking capacity with mid trip position for easy identification of the fault


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conditions. The components shall have shock proof and safe finger touch

terminals.

The components shall have lower watt losses and shall have provision for

mounting the additional accessories such as auxiliary blocks, shunt trip, etc.

iii) Lighting panels shall be suitable for 3 Phase, 4 Wire, 415/240 Volts as perthe distribution schemes indicated in the relevant drawings.

v) The lighting panels shall be completely dust and vermin proof, double door

type and provided with neoprene gaskets and free of mechanical and

electrical defects. The degree of protection for the panel enclosure shall be

minimum IP 54.

vi) Knockouts for branch circuit conduits or cables shall be provided on the top

and bottom as required.

vii) Tinned copper sockets shall be provided for the main connections to the

panel.

viii) All panels shall be self-supporting, wall / steel structure mounting type

unless otherwise specified in the schedule of quantities

ix) All the lighting panels shall be provided with two external Earthing terminals

and suitable tinned copper lugs for connection to the Earthing system

x) The neutral terminal block shall have sufficient number of terminals for all

single-phase outgoing branch circuits.

xi) Means for easy identification of each and every branch circuit shall be

provided. A Circuit Distribution diagram shall be pasted on the rear side of

the front door of the panel for the easy reference.

xii) Vendor shall furnish the GA drawings with supporting and connection

arrangement and wiring diagrams with the detailed bill of quantities, for the

approval of Owner / Consultant, before executing the work.


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Specifications for Music

/ Public Address System


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MUSIC / PUBLIC ADDRESS SYSTEM

1.0 General:

This specification covers the design, supply installation, testing & commissioning ofthe Background music / Public address system for the whole premise.

2.0 Scope of Supply :

The contractor shall supply spare parts for the two years maintenance of completesound system. The contractor shall submit along with his offer the list of such spareparts as recommended by the manufacturer. The recommended spares shall besupplied at NO CHARGE basis and the cost for each spares shall be included in themain equipment price.

The contractor shall comply with the general maintenance requirements. The oneyear maintenance period and guarantee contract shall be on NO CHARGE basis.The contractor shall cover, all regular monthly servicing, and testing of equipment,if necessary supply and replacement of faulty parts.

The cost of above shall be included in the main equipment and not pricedseparately.

The background music / public address system shall include the supply andinstallation of the following items:

3.0 Ceiling/Wall Mount Speaker

Ceiling Mount Speaker shall be ceiling mounted either recessed in the false ceilingsor surface mounted wherever there is no false ceiling. They should have thefollowing specifications:

Rated Power : Min - 3W & max. - 6W Line Voltage : 70 ~ 100 V Freq. Response : 110 Hz - 13 KHz Weight : 0.5 Kg. Easy to install with spring-loaded mounting clamps Inbuilt 100V Line Matching Transformer Contemporary aesthetic grill design

4.0 Weather Resistant Speaker

For outdoor application weather resistant speakers should be used with the followingspecification:

High fidelity 2-Way, 100V multi-purpose PA speaker 100V; Power taps of 16W, 8W & 4W. Power taps can be selected through a rotary switch. Weather resistant speaker. W133 H187 D107 mm Frequency Response: 85-20,000Hz Inbuilt 100V Line Matching Transformer Contemporary aesthetic grill design


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5.0 Amplifier

The amplifier should be in a Compact Housing and shall have the followingcharacteristics:

Rated Power Output : 65W, 100W, 250W, 300 W (as per requirement)

Speaker OutPut:17.4 ohms (70V),balanced 15.1ohms(100V),Balanced ,Lowimpedance:4-16 Ohms, Balanced Input : Less than 1 V, unbalanced, XLR and phone Jack; Output: 775V, 0dB XLR and phone jack Frequency Response : 60 - 15,000 Hz, +/- 3 dB THD : Less Than 0.5 % at 1KHz (1/3 Rated Power) S/N Ratio: Better than 73dB Slew Rate : 15 V / uS Controls : Volume Control And Power Switch Cooling : Internal 12Vdc fan, extensive heat sinking Indicators : Power, Clip, Signal, Protect , And Temp LEDs. Protection : AC Fuse : 15A Power Consumption : 880W Power Requirements:110-120 V or 220-240V AC, 50/60 Hz

6.0 Volume Controller

The Volume Controller should be with Concealed box and with followingcheracteristics:

Type: 5 Step resisite , mono 24VC Override : No Attenuation : Step 1 -off

Step 2 : -4dBStep 3 : -1dBStep 4 : -0.5dBStep 5 : 0dB

Frequency Response : 20 Hz-20 Khz

Dimensions: 86(W) x 86 (H) x 50 (D) mm

7.0 MICROPHONE

The microphone shall be of the electro dynamic type. The frequency range shall be60 - 15000 Hz. The selection can be done as per the application which can beGooseneck type, wireless hand held type, Table stand type etc. However themicrophone should have following features:

Excellent speech reproduction Rugged construction Easy to handle Remote switching contact Close talking applications Matt black finish

8.0 System Rack

The system rack should have the capacity to house the amplifier, mixing console formusic / PA systems, Microphone and Cassette / CD player.


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9.0 LOUDSPEAKER:

They shall be of a good quality having a frequency range between 150 and 9000 Hz.,a power of 12 W each and a diameter of 6 inches.

Every loudspeaker shall be installed in an appropriate casing, it shall be fitted with a

decorative protection grill and a plastified cloth to protect the unit against dust andhumidity. It shall be supplied with the necessary matching transformer.

The loudspeaker should be black / white as specified and should be powder coated.


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General Specifications

for Electrical Materials

for Electrical Installation

Work


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GENERAL SPECIFICATIONS FOR ELE. MATERIALS FOR ELECTRICAL INSTALLATION WORK

1 GENERAL

a) All materials covered in these specifications shall be of heavy duty rigid

type, neat in appearance and suitable for the purpose specified.

b) The materials shall be of standard and reputed makes and shall conform to

the requirements/approval of:

i) Fire Insurance Association.

ii) Indian Electricity Rules & Relevant Indian Standard Codes

iii) Electrical Inspector

iv) Owner and Engineer-in-charge.

Any materials not approved by any of the above mentioned authorities, shall

be replaced by suitable approved materials free of cost. Routine and type

test certificates and technical literature shall be furnished for all items.

c) Relevant drawings and technical data, where applicable, shall be furnished

to owner for his approval, before supply of the items.

2 POWER, LIGHTING AND CONTROL CABLES

a) General

i) All conductors shall be either copper or aluminium stranded and as specified

on the drawings. Sizes and types specified on the drawings shall not be

changed without prior approval of the Engineer-in-charge.

ii) Ends of cables shall be properly sealed to prevent ingress of moisture.

iii) Wherever specified as half core in multi core cables, the half core shall be a

neutral conductor having reduced section in relation to the main conductor

size.

iv) The insulation of conductors in the multi core cables shall be colour-coded

to facilitate identification. The colours shall be red, yellow and blue for

phases, black for neutral and green for earthing.


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v) All single core copper or aluminium cables shall preferably have stranded

conductors unless otherwise specified.

vi) The insulation shall be suitable for operation in an ambient temperature of

45 Degree C with a maximum conductor temperature of 70 Degree C without

any harmful effects.

b) Specifications

i) 1100 Volts multi core armoured cables with PVC / XLPE insulation and

extruded PVC inner and extruded FRLS outer sheath shall conform to I.S.S

1554.

ii) 660 Volts single core unarmoured wires and cables with FRLS PVC / XLPE

insulation shall conform to I.S.S. 694.

c) Multi core Power Cables

Multi core power cables shall be of 1100 Volts grade, PVC / XLPE insulated

and extruded FRLS PVC inner and extruded FRLS PVC outer sheath and

armoured type, of make as approved by Owner/Consultant.

d) Wires and Cables

i) Single conductor wires for lighting shall be of minimum 2.5sq.mm. Copper as

indicated in applicable drawings.

ii) All wires for lighting and power plug points shall be 660 Volts/1100 Volts

multi stranded, flexible, FRLS PVC insulated unarmoured type of make as

approved by Owner/Consultant.

iii) Single core for power receptacles shall be of minimum 4sq.mm. Copper

unless otherwise indicated on applicable drawings/ Datasheet.

e) Multi core Control Cable

i) Multi core control cable shall be 660/1100 Volts PVC / XLPE insulated and

extruded FRLS PVC inner and extruded FRLS PVC outer sheath armoured type

of make as approved by Owner/Consultant.


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ii) Each core shall be of 2.5 sq.mm. Copper or 4 sq.mm. Aluminium, as

indicated in applicable drawings / Datasheet.

iii) The size and number of cores shall be as indicated in the drawings /

Datasheet.

f) Flexible wires

i) Minimum size of flexible stranded wires shall be of 2.5 sqmm. Cu conductor.

ii) Voltage grade of the flexible wires shall be not less the 660 Volts.

iii) Insulation shall be of FRLS PVC unless otherwise specified in the drawings.

3 CONDUITS

a) General

i) All Conduits shall be of heavy duty PVC type. The conduits shall be of make

as approved by Owner / Consultant.

ii) All conduits shall have a smooth interior, free from burrs and sharp edges.

iii) The sizes of the conduits shall be as indicated in the applicable drawings.

iv) Flexible conduits shall be of steel reinforced PVC type and of make as


b) Specifications

i) All rigid PVC conduits shall conform to I.S. Specifications 9537.

ii) All flexible conduits shall conform to I.S.3480

4 CONDUIT FITTINGS

i) All conduit fittings shall have a smooth interior free from burrs and sharp

edges.


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ii) All conduit fittings shall be of heavy duty PVC type as specified in the

schedule of quantities.

iii) Each conduit fitting shall have a gasket and screwed on rigid covered for

hazardous areas. The gasket shall be of neoprene make. Gaskets need not be

provided for conduit fittings for non-hazardous areas conduit fittings.

5 EARTHING SYSTEM

a) Materials

i) Earthing electrodes, buses, strips and wires shall be of galvanised

steel/copper as per relevant drawings and I.S .specifications.

ii) Sizes of the earth electrodes, the main Earthing bus and the Earth wiresshall be as mentioned in applicable drawings/specifications.

iii) Earthing clamps, nuts, bolts, etc. shall be of copper or galvanised steel as

shown on the drawings.

iv) Lightning finials shall be of G.I. / Copper (as per the schedule of rates and

drawings) as per I.S. Specification 3070 and/or the type as indicated in the

applicable drawings.

6 LIGHTING FIXTURES AND LAMPS

a) Specifications

Relevant Indian Standard Codes and Specifications shall be applicable for lighting

fixtures and their components wherever such specifications and standards exist.

Lighting fixtures shall also have the approval of the Fire Insurance Association.

b) Type of fixtures

i) Incandescent Fixtures

ii) Fluorescent Fixtures

iii) Compact fluorescent fixtures

iv) Mercury Vapour Fixtures

v) Sodium Vapour Fixtures

vi) Metal Halide Fixtures


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vii) Halogen Fixtures

c) General Requirements for all fixtures

i) All fixtures shall be suitable for 240 Volt, single phase, 50 Hz. supply.

ii) Fixtures of each type shall be of one make and identical with one another.

iii) All incandescent and mercury vapour lamp fixtures shall have porcelain lamp

holders of suitable type and size for the wattage of lamp specified.

iv) All fixtures shall be supplied complete with all necessary accessories and

lamps.

v) All fixture components shall be suitable to withstand a high humidatmosphere so that any damage due to corrosion, distortion etc. can be

avoided.

vi) All fluorescent fixtures shall have detachable reflectors with easy access for

maintenance purpose.

vii) Fluorescent and mercury vapour fixtures shall have super low loss ballasts,

noiseless in operation similar to Super Low Loss type or Electronics type as

approved by Owner/Consultant and also suitable condensers for high power

factor. Chokes shall be suitable for a range of voltage of 210-240V. If

necessary, tapping shall be provided for 210,220,230 and 240V.

viii) All fluorescent fixtures shall have rotor lamp holders with cadmium plated

spring loaded contacts.

ix) All fixtures shall also have earthing provision made as per Indian Electricity

Rules.

d) Lamps

General

i) All lamps shall be rated for 240V.

ii) Wattage shall be as indicated in the Schedule of Quantities.


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Incandescent type

i) All lamps of 100watts or above shall preferably be screw

type ES for medium base and GES for goliath base.

ii) All lamps shall be frosted type and glare-free.

Fluorescent tubes

All tubes shall be white type, shall have high lumen output (3250

lumens) and of make as approved by Owner/Consultants

Mercury vapour lamp

These lamps shall be colour corrected, avoiding glare and distortion.

7 LIGHTING PANELS - FOR NON HAZARDOUS AREAS

a) Specifications

Relevant Indian Standard Specifications and Codes shall apply for Lighting Panel

Boards and their components wherever such Standard Specifications exist. The panel

shall be approved by the Fire Insurance Association.

b) General Requirements

i) Lighting panels shall be made of 14SWG sheet steel and painted with powder

spray to prevent corrosion.

ii) Lighting panels shall be suitable for 3Phase, 4Wire, 415/240 Volts as per the

distribution schemes indicated in the relevant drawings.

iii) The lighting panels shall be completely dust and vermin proof, double door

type and provided with neoprene gaskets and free of mechanical and

electrical defects. The degree of protection for the panel enclosure shall be

IP54

iv) Knockouts for branch circuit conduits or cables shall be provided on the top

and bottom as required.


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v) Tinned copper sockets shall be provided for the main connections to the

panel.

vi) All panels shall be self supporting, wall mounting type unless otherwise

specified in the schedule of quantities

vii) All the lighting panels shall be provided with two external Earthing terminals

and suitable tinned copper lugs for connection to the Earthing system

viii) The neutral terminal block shall have sufficient number of terminals for all

single phase outgoing branch circuits.

ix) Means for easy identification of each and every branch circuit shall be

provided.


a) Switch Fuse Units

i) Switches shall have H.R.C.fuses for each phase as indicated in the drawings.

ii) The switches shall be load breaking type suitable for breaking circuits on full

load.

iii) All switches shall be rated for 500 Volts and shall be metal clad heavy duty

type and shall have neutral links. The sizes shall be as specified and

indicated in the applicable drawings.

iv) For exposed and outdoor locations, the switches shall be weather-proof type

i.e. IP55.

v) Nameplates of adequate size shall be provided to indicate the name of the

equipment and/or the circuit number controlled by the switch fuse unit.

vi) A nameplate and/or designation number shall also be provided

approximately on the top middle portion of the complete assembled unit, as

mentioned in the drawings, for identification.


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b) Switches - Single Pole

i) Single pole general purpose switches shall be of 250Volts, conforming to I.S.

specifications. Switches above 5A shall be of rotary type.

ii) Unless otherwise shown in the drawings, all single pole switches shall be of

minimum 5 amperes rating.

iii) Each 5A switch shall have a porcelain base mounted in a sheet steel box with

the operating knob projecting out of the box and held in position by a

threaded tightening ring from the outside. The rotary switches shall be as

approved by the Engineer-in-charge.

iv) Unless otherwise specified switch housing shall have threaded hub for heavywall rigid conduit as approved by the Owner/Consultant.

v) Switch housing shall be provided with Earthing screw.

c) Socket Outlets and Plugs - Single Phase Metal clad type

i) Single phase socket outlets, receptacles and plugs shall be 3 pin, 250Volts,

conforming to I.S.1293. Ratings are as specified in drawings.

ii) Each socket outlet unit shall be provided with a single pole Industrial rotary

switch of suitable rating unless otherwise indicated.

iii) The socket outlet and switch shall be encased in a suitable metal box. The

metal box shall be provided with earthing screw. Approval from Engineer-in-

charge is essential before taking up fabrication.

iv) The socket outlets shall have suitable Porcelain bases and metal cover.

v) The unit (of socket outlet and switch) shall be complete with necessary

integral wiring and/or interlocking.

vi) Each socket outlet shall be provided with an attached metal cap to cover the

outlet when not in use to make the receptacle safe and weatherproof.


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vii) The earthing pin of the plug shall be the one to contact first and break

contact last at the time of inserting or removing the plug as the case may

be.

viii) The earthing terminal shall be connected to the encasing metal body of the

unit.

d) Three Phase Receptacles Metal clad type

i) These receptacles and plugs shall be 4 Pole, 500 Volts and of current rating

as indicated on the applicable drawings.

ii) Each receptacle and plug shall be coupled to a 3-pole & neutral switch to

form a complete unit.

iii) An interlock shall be provided to prevent the insertion or withdrawal of the

plug with the switch ON.

iv) This unit of switch with interlocked plug and socket shall be of a make being


v) The socket shall be suitable for surface or flush mounting as indicated in the

drawings.

vi) A nameplate of adequate size shall be provided to indicate the name of the

equipment connected.

vii) For flush mounting, the switch shall be of the rotary type of approved make

and the combination of socket and switch shall be mounted in a M.S.sheet

metal box suitable for conduit/cable entry. The M.S.sheet metal box shall be

provided with duplicate external Earthing terminals and tinned copper lugs

for connection to the Earthing system.

e) Push Button Stations (General Purpose)

i) Metal clad start-stop push button stations shall be of momentary contact

type with provision for locking in OFF position. The boxes shall be supplied

with necessary cable /conduit entry at the bottom.


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ii) All contacts shall be silver tipped and be capable of interrupting minimum

10Amperes at 250Volts without damage to the contacts.

iii) Push button stations shall be provided with mounting holes for mounting on

the wall or on a steel frame as shown the drawings.

iv) A nameplate of adequate size shall be provided to indicate the name of the

equipment and/or circuit number controlled by the push-button station.

v) The degree of protection for the push button enclosure shall be IP 55 and

the unit shall be provided with suitable rain hood and made weatherproof

type is to be installed in outdoor area.

vi) The push button stations shall be provided an Ammeter wherever mentioned

in the drawings.

f) Flame proof Materials / Accessories

All flame proof materials / accessories shall be of cast iron or LM-6 or

suitable alloy metal. The enclosure shall conform to the requirements of IS :

2148 or IS : 6381 as indicated. Further, flameproof accessories shall meet all

requirements of Indian Electricity rules, Fire Insurance Association of India,

Electrical Inspector, CMRS Dhanbad, Chief Inspector of Explosives (Nagpur),

Director General (Factory safety), Service and Labour Institute (Bombay),

etc.

9 CABLE GLANDS AND CABLE TERMINATING ACCESSORIES

i) All cable glands shall be of brass metal and screwed type and single

compression type for indoor application and double compression type for

outdoor application.

ii) Cable glands for Hazardous area shall be of flame proof, double compression

type.

iii) All cable sockets for cable termination shall be of tinned copper only.

iv) Cable identification tags shall be of 6 mm thick Aluminium flat of suitable

size with neatly engraved marking.


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v) Cable trays, shall be G.I. Perforated or M.S. painted, site fabricated, Ladder

type as indicated on the drawings and the schedule of quantities.

11. HARDWARE AND STRUCTURAL STEEL

i) All hardware and structural steel being used for the various installations,

Cable trays, supports, frames, etc. shall be as per relevant I.S. The sizes of

the sockets shall be as per the approved drawings.

ii) All nuts, bolts, washers, spring washers, etc. shall be of galvanised steel.

Note

In case of any duplication of data / specifications of any item / equipment in the tender

document, the specification / data shown in the bill of quantities shall be given the first

priority, the specification / data shown in the exclusive Specifications of the relevant

item / equipment shall be given the second priority and the specification / data indicated

in the General Specifications shall be given the last priority.


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Specifications for

Electrical Installation -

Standards &Specifications


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ELECTRICAL INSTALLATION - STANDARDS & SPECIFICATIONS

1 GENERAL

a) Scope of Work

The scope of work shall include the furnishing of all labour, materials,appliances, superintendence and services required to construct and install a

complete and operable electrical system as herein specified and covered by

the accompanying drawings. The items of work include, but are not limited

to, the following:

1. Complete electrical power and lighting systems, covering H.T.

Switchgear, Transformer, 415 volts Switchgear, switches, starters,

lighting installation, cabling and other equipment including all outside

conduits, wiring and incidentals as required.

2. Complete branch circuit wiring installation for lighting receptacles and

miscellaneous items.

3. Installing and connecting all lighting luminaires complete with lamps,

unless otherwise specified.

4. Supply and installing complete earthing system and test thereof.

5. Installing and connecting motor starters where specified.

6. Temporary electric lights and powers facilities, if required on the

instruction of