1 Tech Specificaiton)220kv Cable Specsfinal

7/27/2019 1 Tech Specificaiton)220kv Cable Specsfinal

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GETCO/E/TS-POWER CABLE/R0 DT 09-03-2009

F:\11SJH\ALL FOLDERS\SPECIFICATIONS POWER CABLES & LAYING\220KV XLPE\220KV CABLESPECSFINAL.doc

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GUJARAT ENERGY TRANSMISSION CORPORATION LTD.

Sardar Patel Vidyut Bhavan, Race Course,Vadodara: 390 007

TECHNICAL SPECIFICATION

FOR

SUPPLY

220KV ,1C,XLPE POWER CABLE

FOR

TRANSMISSION LINES&

SUB-STATIONS

GETCO/ENGG/TECH. SPECI. POWER CABLE/

REV-0 DT. 09/03/2009


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SPECIAL INSTRUCTIONS TO BIDDER

Please read following instructions carefully before submitting your bid.

1. All the drawings, i.e. elevation, side view, plan, cross sectionalview etc., in AutoCAD format and manuals in PDF format, foroffered item shall besubmitted. Also the hard copies as perspecification shall be submitted.

2. The bidder shall submit Quality Assurance Plan formanufacturing process and Field Quality Plan with the

technical bid.

3. The bidder shall have to submit all the required type testreports for the offered item. In absence of this, the evaluationshall be carried out accordingly as non-submission of type testreports.

4. The bidder must fill up all the point of GTP for offered item/s.instead of indicating refer drawing, or as per IS/IEC, theexact value/s must be filled in.

5. All the points other than GTP, which are asked to confirm intechnical specifications must be submitted separately with thebid.

6. The bidder is required to impart training in view ofmanufacture, assembly, erection, operation and maintenancefor offered item, at his works, to the person/s identified byGETCO, in the event of an order, free of cost. The cost oflogistics will be borned by GETCO.

7. Please note that the evaluation will be carried out on thestrength of content of bid only. No further correspondence willbe made.

8. The bidder shall bring out all the technical deviation/s only atthe specified annexure.

9. The bidder should indicate manufacturing capacity bysubmitting latest updated certificate of a Chartered Engineer

(CE).


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QUALIFYING REQUIREMENT DATA(For Supply)

Bidder to satisfy all the following requirements.

1) The bidder shall be Original Equipment Manufacturer(OEM). The offered equipment have to be designed, manufactured andtested as per relevant IS/IEC with latest amendments.

2) The minimum requirement of manufacturing capacity ofoffered type, size and rating of equipment shall be 7 times tender / bidquantity. The bidder should indicate manufacturing capacity bysubmitting latest updated certificate of a Chartered Engineer (CE).

3) Equipment proposed shall be of similar or higher rating andin service for a minimum period of THREE (3) years and satisfactoryperformance certificate in respect of this is to be available andsubmitted.

4) The bidder should clearly indicate the quantity and SingleValue Contract executed during last FIVE (5) years, for the offeredequipment. Bidder should have executed one single contract during lastfive years for the quantity equivalent to tender / bid.

The details are to be submitted in following format,

Sr.No

ITEMSSUPPLIEDTO

ORDERREFERENCE No. &DATE

ITEMS

QUANTITY

ORDERFULLYEXECUTED.YES/NO

STATUS,IFORDERUNDEREXECUTION

REMARK

Equipment offered shall have Type Test Certificates from accreditedlaboratory (accredited based on ISO/IEC Guide 25 / 17025 or EN 45001

by the National accredition body of the country where laboratory islocated), as per IEC / IS / technical specification. Type test reportsshall not be older than FIVE years and shall be valid till the expiryof the validity of offer.


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INDEX

TECHNICAL SPECIFICATION FOR 220 KV XLPE CABLE

CONTENTS

CLAUSE NO. TITLE PAGE NO.

1.0 SCOPE 6

2.0 STANDARDS 8

3.0 CLIMATIC CONDITIONS 10

4.0 PRINCIPAL PARAMETERS 11

5.0 GENERAL TECHNICAL

REQUIREMENT

12

6.0 TESTS 20

7.0 INSPECTION 24

8.0 QUALITY ASSURANCE PLAN 25

9.0 Documentation 27

10.0 PACKING AND FORWARDING 30

ANNEXURE-I GUARANTEED TECHNICAL

PARTICULARS

31


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TECHNICAL SPECIFICATION

1.0 SCOPE: Design, Engineering supply and laying of 220 KVXLPE UG Cable system on turnkey basis facilitating powerflow of 2X250 MW minimum in each 220 KV cable circuitensuring sufficient over load capacity and all safetymeasures.

(a) Supply & Laying of 220 KV XLPE UndergroundCopper Cable with Associated Accessories includingservices for laying jointing, terminations, site testing,

commissioning the complete cable system from 2Nos. GT (Generator Transformer) Yard to GT Bay atSikka Thermal Power Station in Gujarat includingend termination structures at both ends.

(b) Supply & Laying of 220 KV XLPE Underground CopperCable with Associated Accessories including services forlaying jointing, terminations, site testing, commissioningthe complete cable system from 2 Nos. ST (StationTransformer) Yard to ST Bay at Sikka Thermal Power

Station in Gujarat including end termination structuresat both ends.

Other items not specifically mentioned in this Specification

and are required for the successful erection, testing and

commissioning of the underground cable line, unless

specifically excluded in the Specification.

(d) Following accessories are also included in the scope ofsupply along with 220 kV XLPE cable.

(i) Pre-moulded straight through joints along withassociated accessories suitable for the above

cable, including cross bonding arrangementswith surge arrestors, link boxes, earthing sets


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(pipe type) etc., as described in thisspecification.

(ii) Outdoor cable terminations (sealing ends)required at both ends.

(iii) Adequate nuts and bolts as required.

(e) The scope also covers the following.

i. Route Survey and preparation of Cable routeprofile drawings.

ii. Formation of trench for laying of two circuits(six cables) in trefoil formation in both thecases i.e. GT Yard to GT Bay(2Nos) and ST

Yard to ST Bay(2Nos).

iii. Required Sand for filling the Trench for cablebedding.

iv. Laying of cable in Trefoil formation.

v. Supply and positioning / laying of RCC slabs /Warning Tapes over earth circuit.

vi. Refilling the trench with excavated earth(Incase of buried cable).

vii. Foundation for end termination structures formounting and termination.

viii. Erection of link boxes both with / withoutSVL(Sheath Voltage Level).

ix. Services for Cable jointing and Endterminations.

x. Provision like tents, Air Conditioners etc. at thetime of jointing and terminations formaintaining proper environmental condition.

xi. Necessary earthing of the system.

xii. Site Testing and Commissioning.


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xiii. Supply of Cable route markers and fixing themon either side of cable route at every 200meters interval.

(f) It is not intent to specify completely all the details requiredfor the above cable system. However, the cable systemshall be designed to carry possible maximum power ineach circuit minimum and induced voltage in the sheathshall not exceed 60 V, under full load conditions, dulytaking into consideration length of cable route and adoptingsuitable cable sheath bonding system, minimizing thesheath and accessories shall conform in all respects to thehigh standard of engineering design and workmanship andshall be capable of performing in continuous commercialoperation up to the suppliers guarantee. The cable systemoffered shall be complete with all the componentsnecessary for its effective and trouble free operation and allcomponents required shall be deemed to be within thescope of the bidder.

(g) T&P (Tools & Plant) required for laying, Jointing andtermination shall be arranged by the bidder. The job is onturnkey basis.

Note: The scope shall cover supply of all requiredequipments Accessories, spares and jointing kits and toolsand plant, competent supervision and consumables. Allother matching materials requires (whether specificallymentioned or not) for complete installation, testing andcommissioning of the system. Any items / equipmentwhich are having shelf life shall be brought to site at thetime of erection only. GETCO is not responsible for anysuch material becoming un-usable due to delay inexecution of the project.

2.0 STANDARDS

(a) The 220 kV XLPE UG Cable shall conform to the followingIndian / International Standards, which shall mean latestrevisions, amendments / changes adopted and published,unless otherwise specified herein before. International andInternationally recognized standards to which thesestandards generally correspond are also listed below:

SlNo. IndianStandards Title InternationalStandards


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1. IS:7098Part-3

Specification for XLPE insulated PVCsheathed cables

BS-5468

2. IS:1255 Code of practice for laying of powercables

3. IS-5831 PVC Insulation & sheath of electriccables

4. IS-3043 Code of practice for earthing

5. IS-5216 Guide for safety procedure andpractices in Electrical works

6. IS-8130 Conductors of Insulated Cables IEC-60228.

7. Guide to the dimensional limits ofcircular Conductors

IEC-60228A

8. Tests on cable over sheath, Powercables, Insulators

IEC-60229,IEC-60840,

IEC-60230,

9. Power Cables with extruded insulationand their accessories

IEC 502-2

10. Calculation of continuous currentrating of cables

IEC-60287

11. Electrical tests on extruded cables andAccessories for rated voltages > 150kV and up to 420 kV.

IEC-62067

12. Indian Electricity Rules -1956

13. Tests on cable over sheath which havea special protective function and areapplied by extrusion

IEC-229

14. Power cables resistance of conductors IEC-2411408

The above standards are for guidance and shall besuitably extended for service voltage of 220 kV whereverapplicable.

The standards mentioned above are available from:

Reference Abbreviation Name and AddressBS British Standards Birtish Standards Institution, 101,

Pentonvile Road, N-19-ND UK

IEC/CISPR

InternationalElectro technicalCommission

Bureau Central de la Commission, ElectroTechnique International, 1 Rue deverembe, Geneva SWITZERLAND

BIS Bureau of IndianStandards,

Manak Bhavan, 9, Bahadur Shah ZafarMarg, New Delhi - 110 001, INDIA.

NEMA National Electric

Manufacture

115, East 44th Street, New York NY

10017 U.S.A.


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Associate

(b) CONFILICT OF STANDARDS: Equipment conforming toother internationally accepted standards, which ensureequal or higher quality than the standards mentionedabove, would also be acceptable. In case the Bidders whowish to offer material conforming to the other standards,salient points of difference between the standards adoptedand the specific standards shall be clearly brought out inrelevant schedule. Four copies of such standards withauthentic English Translations shall be furnished alongwiththe offer. In case of conflict the order of precedence shallbe (i) IEC (ii) IS (iii) Other standards. In case of anydifference between provisions of these standards andprovisions of this specification, the provisions contained inthis specification shall prevail.

3.0 CLIMATIC CONDITIONS

i) Location Sikka Thermal Power Station nearJamnagar in the state of Gujarat,India.

ii) Max. ambient air temp.of air inshade (deg. C)

50

iii) Min ambient air temp. of air inshade (deg.C) 4

iv) Maximum daily average ambientair temperature (deg. C)

40

v) Maximum daily average ambientair temperature (deg. C)

30

vi) Maximum Relative humidity (%) 95

vii) Average number of the thunderstorm days per annum

15

vii)i Average annual rainfall (mm) 150

ix) Average rainy days 90 days / yearx) Max. wind pressure (kg/sq.m.) 150

xi) Max. altitude above mean seallevel (meters)

1000

xii) Max. soil temp.at cabledepth(deg. C)

30 to 40

xiii) Soil thermal resistivity 150 Deg. C- cm / Watt at depth of1.5Mtr.

4.0 PRINCIPAL PARAMETERS:


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The cable and accessories shall conform to the specific technicalrequirements given hereunder.

SlNo.

Item Description

i) Types of cable 127/220 kVXLPE

127/220 kVXLPE

ii) No. of cores Single Single

iii) Conductor size 1200 sq. mm 400 sq. mm

iv) Conductor material Copper Copper

v) System voltage (Nominal /Highest)

220 kV / 245 kV 220 kV / 245 kV

vi) Maximum fault current andits duration

40 kA for 1 sec. 40 kA for 1 sec.

vii) System frequency &variation 50 Hz +/- 5% 50 Hz +/- 5%

viii) 1.2/50 micro sec. lightningImpulse withstand voltage

1050 kV (Peak) 1050 kV (Peak)

ix) 1min. Wet Power frequencywithstand voltage test

460 kV (rms) 460 kV (rms)

x) Rated continuous current Inground with the climaticconditions mentioned atclause 3.0 above

870 AmpsSuitable for250MW - GT

480 AmpsSuitable for40MVA - ST

xi) Maximum allowable temp.for Cable and accessories

a) During continuousoperation in air at rated fullload current the maximumtemperature of theconductor shall not exceed

90C 90C

b) The conductor temp.after rated short circuit asper Sl. No. 6 above

250C 250C

xii) System earthing Solidly earthed Solidly earthed

5.0 GENERAL TECHNICAL REQUIREMENT

5.1 Design Considerations


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5.1.1 The cable shall be suitable for buried installation with

uncontrolled back filling and laying in the area likely to beflooded by water. The cable shall withstand all mechanicaland thermal stresses, which are likely to occur during itsnormal steady state and transient operation conditions.

5.1.2 The metallic screen shall be designed to withstand earthfault current liable to occur in the system during conductorto ground fault as specified in clause 4.0(6).

5.1.3 The thermal receptivity of the soil is generally 150 C- cm /watt.

5.1.4 The cable shall be designed to have a minimum useful lifeof not less than fifty years.

5.1.5 Each cable length shall be provided with a pulling socketpulling eye, which shall be fitted to pulling end. The pullingsocket eye end shall be able to take the pulling tension of2800 kgs., along with a reasonable factor of safety. Thesupplier shall confirm whether the cable can take thispulling load or not with supporting documents.

5.1.6 The outer sheath of the cable shall be given adequatechemical treatment in order to protect itself from rodent andtermite attack.

5.1.7 The conductor shall be clean, uniform in size and shape,smooth and free from harmful effects.

5.1.8 The supplier shall supply the design calculations andassociated details along with the offer in order to establishthe specified minimum continuous current rating and short

time current rating of the cable.

5.2 Construction details5.2.1. Cable construction and material for 220 KV XLPE

cables:

i) Conductor: Single core conductor shall consist ofstranded, segmental/compacted circular annealedcopper wires confirming to IEC-60228 / IS-8130. Thewires shall be made of high conductivity copper and

shall be stranded and compacted. The copper usedfor the conductor shall be highest purity. The


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nominal area of conductor shall be 1200/400 sq mm.The minimum number of wires in conductor and DCresistance of conductor shall be as per IEC 60228.

ii) Conductor screening: Conductor screening shallconsist of an extruded layer of thermosetting blacksemi conducting compound which shall be firmlybonded to the outer surface of the conductor andshould cover the whole surface of the conductor andsuitable for the operating temperature of the cableand compatible with the insulating material. Thenominal thickness of the conductor screen should beas per latest relevant IEC.

iii) Insulation: Insulation shall be cross-linkedpolyethylene (XLPE) and shall conform the latest IECand of very high degree of purity and radiant cured(i.e., dry curing and dry cooling process). This XLPEinsulation shall be applied by extrusion andvulcanized to form a compact homogenous body freefrom micro voids and contaminants. The nominalthickness of the insulation between conductor screenand insulation screen should be as per latest relevantIEC.

iv) Non-metallic part of insulation screening: Theinsulation screen shall consist of an extruded layer ofthermosetting of semi-conducting compoundextruded directly over the insulation and shall becontinuous and cover the whole surface area ofinsulation. It should be firmly bonded to theinsulation and suitable for operating temp. of thecable and compatible with the insulating material.The conductor screening, insulation and

insulation screening shall be extruded in oneoperation by single common head process toensure homogeneity and elimination of voids.The nominal thickness of insulation screen should beas per latest relevant IEC.

v) Water blocking tape (Longitudinal Water Barrier):This shall be Semi-conducting synthetic non-woven/woven tape with suitable swellable absorbentfor longitudinal water sealing covering the whole

surface area of the non-metallic part of insulationscreening. This barrier shall restrict longitudinal


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water penetration under the metallic sheath. Thenominal thickness of water blocking tape shall be asper latest relevant IEC.

vi) Metallic part of Insulation screening (Moisturebarrier): This shall consist of metallic sheath(Aluminium or Copper) and shall be impervious tomoisture content, closely fitted and free from defects.The nominal thickness of metallic sheath shall be asper IEC.

vii) Bedding: Bedding shall consist of semi conductingtape (s) of approx thickness 0.3 mm.

viii) Metallic screen: The Metallic screen shall consist ofannealed plain copper wires applied over theBedding. An open helix copper tape shall also beapplied over the screen together can carry tospecified fault current (40 kA for One second). Thedirection of lay of the screen wires shall be left hand.Joints in the screen wires shall be at least 300 mmfrom the nearest joint in any other screen wire in thecomplete cable. If the metallic part of insulationscreen alone is capable to withstand fault current (40kA), then there is no need of this metallic screen.The bidder shall furnish the calculations in support oftheir design, along with bid.

ix) Outer Jacket: The outer jacket will consist ofextruded, black, heavy duty PVC / PE / HDPEcompound conforming to the requirement as perlatest relevant IEC. The thickness of the outer jacketshould be as per latest relevant IEC. The outerjacket shall be anti-rodent and anti-termite graphite

coated extruded semi conducting layer. Extrudedconducting layer would be preferred obtained bysimultaneous extrusion with PVC / PE sheath,applied over outer jacket.

5.2.2. Cross bonding and earthing of metallic sheath.

In order to eliminate the sheath circulating current lossesand consequent rise in potential, the metallic sheath atcable joints shall be cross bonded and earthed. The

sheath of the three cables at the terminations shall beconnected together at every joint and solidly earthed


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through disconnecting link boxes. It shall be possible totest the insulation of sheath by opening the link. Thesheaths shall be insulated from ground at the switchyardsealing termination. The cable sheath covering and sheathinsulators provided at the cable terminations shall becapable of with standing (with an ample safety margin)sheath voltages arising from maximum momentary faultcurrent of 40 kA (rms). Cable covering protection units(CCPU) with surge diverters shall be provided betweensheath and ground to protect the cable covering fromsurge voltages induced in the cable circuit. The sheathvoltage under normal operating shall be around 50 to 60volts to ground in any section. (Calculations shall befurnished to substantiate this).

5.2.3 The charging current of the cable shall be as low aspossible and shall be stated in the bid. The surgeimpedance of the cable shall be low so that the overvoltage at the transformer terminals due to lightning surgeremain well below its impulse level of 1050 kVp.Calculations for such over voltages shall be furnishedalongwith the bid. The supplier in the offer shall alsoindicate suggested parameters for lightning arresters oruse at the terminals.

5.2.4. Cable accessories

The sealing ends shall conform to the latest internationalstandards and shall be of thoroughly proved design. Theinternal electric stress in the sealing end shall be controlledby the stress con arrangement preferably with semi-conductive bell mouth. The cable terminations shall beoutdoor type. The outdoor type sealing ends shall bsuitable for installation in polluted atmosphere referred to

in clause 3.0 and shall be completely weather proof. Eachoutdoor-type sealing end shall be supplied complete withmounting plate insulators to insulate the sealing end fromthe supporting structures and to control the sheath current.If required, terminal connectors and bimetallic clamps shallalso be supplied. Each sealing end shall be provided withconsumption materials such as wiper and solvent forcleaning. The power cable leading to sealing end shall beprovided with proper sunshield cover with flexible PVCpipe.


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a) Pre-Moulded Straight through joint: These jointsshall be suitable for underground installation withuncontrollable backfill and for laying in areas likely tobe flooded by water. These shall have adequatemechanical protection features. The surface shall besmooth and have no defects such as cracks, cutsand any other defects.

b) Outdoor Type Terminations

Outdoor type terminations shall be of well provendesign and shall be manufactured in accordance withrelevant standards and manufacturer's specialinstructions.

The termination shall complete with all fittings andterminating materials. In addition, the terminationshall be supplied with consumption materials such aswiper and solvent for cleaning, emery cloth forinsulation surface finishing as well as metal foil,protection tapes for cable annealing andstraightening cable as necessary.

The conductor shall be connected by means of acompression ferrule or other approved arrangement .It shall be able to carry the maximum current underall possible circumstances without causingoverheating and ensure the firm connection undermechanical possibility exposed in service.

The main insulation of the sealing end shall be ofprefabricated type that shall be comparable orsuperior to the cable insulation in respect ofelectrical, thermal and mechanical characteristics

under service and under short circuit conditions. Thedielectric design of the termination shall be sooptimized that the electric stress distribution alongthe stress relief cone and the able surface shall bewell controlled without causing harmfully highelectrical stress.

The housing of the outdoor type termination shall beporcelain insulator having uniform quality and shallhave sufficient strength against mechanical, electrical

and thermal stresses. The color of the porcelaininsulator shall be brown. The porcelain insulator


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shall have sufficient creepage distance complyingwith the requirements of heavy pollution levelspecified in IEC 815.

The termination shall be isolated from the supportingstructure by means of porcelain supportinginsulators.

e) Pole Mounted Type Terminations

Pole Mounted type terminations shall be of wellproven design and shall be manufactured inaccordance with relevant standards andmanufacturer's special instructions.

The termination shall be complete with all fittings andterminating materials. In addition, the terminationshall be supplied with consumption materials such aswiper and solvent for cleaning, emery cloth forinsulation surface finishing as well as metal foil,protection tapes for cable annealing andstraightening cable as necessary.

The conductor shall be connected by means of acompression ferrule or other approved arrangement.It shall be able to carry the maximum current underall possible circumstances without causingoverheating and ensure the firm connection undermechanical possibility exposed in service.

The main insulation of the sealing end shall be ofprefabricated type that shall be comparable orsuperior to the cable insulation in respect ofelectrical, thermal and mechanical characteristics

under service and under short circuit conditions. Thedielectric design of the termination shall be sooptimized that the electric stress distribution alongthe between the stress relief cone and the cablesurface shall be well controlled without causingharmfully high electrical stress.

The housing of the Pole Mounted type terminationshall be of silicon insulator having uniform quality andshall have sufficient strength against mechanical,

electrical and thermal stresses. The color of theporcelain insulator shall be grey. The porcelain


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insulator shall have sufficient creepage distancecomplying with the requirements of heavy pollutionlevel specified in IEC 815.

The termination shall be isolated from the supportingstructure by means of silicon supporting insulators.

f) Link boxes : Link boxes shall be made of stainlesssteel plate of sufficient mechanical strength andenclose links and CCPUs. The insulated typestraight through joints shall be connected to crosslink box by means of single core cable and throughlinks and surge arrestors (CCPU) to be connected toearth. Provision for transposition of sheath andscreen by cross bonding shall be made in cross-linkboxes. The insulating plate to mount the terminalsinside link box shall be of epoxy resin. The link plateand earthing terminal shall be of copper.

The link boxes in between the route shall be buriedtype and those at the termination and shall bestructure-mounted type.

5.2.5 Identification

The external surface of the outer sheath shall beembossed with the following legend. "220 kV,1200/400 sq., mm, XLPE, (Name of the supplier),(Year of Manufacture), property of GSECL ". Theembossed letters and numerical shall be raised andshall consist of upright block characters along twolines, approximately and shall be equally spaced

around the circumference of the cable. The size ofthe characters shall be approximately 13mm. Thegap between the end of the one set of embossedcharacters and the beginning of the next shall notexceed 150mm.

Besides above, progressive sequential marking oflength shall also be provided at every one meter,which shall be clear and legible and shall be contrastcolor.


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NOTE:

1) Any items / equipment which are having shelflife shall be brought to site at the time oferection only. GETCO is not responsible forany such material becoming un-usable due todelay in execution of the project.

2) "The Guaranteed Technical Particulars forthe equipment / material being suppliedshall be provided with the bid as specifiedin the Technical Specification. The Bidswithout the Guaranteed TechnicalParticulars shall be treated as Non-Responsive."


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6.0 TESTS

6.1 Definitions of Tests

6.1.1 Routine Tests shall mean those tests, made by themanufacturer on each manufactured component (cable oraccessories ) to check that the component meets thespecified requirements.

6.1.2 Acceptance Tests shall mean those tests, made by themanufacturer on samples of cable or accessories takenfrom a complete cable / accessories offered for pre-dispatch inspection, at a specified frequency, so as to verifythe finished product meets the specified requirements.

6.1.3 Type tests shall mean those tests conducted on a type ofcable system covered by the standards, before supplying iton a general commercial basis. Type tests are to becarried out to prove the process of manufacture andgeneral conformity of the material to the specification.These tests shall be carried out from any one of thereputed International Test Laboratories mentioned below.

a) KEMA, Hollandb) EDF, Francec) Hydro-Quebec, Canadad) CESI, Italye) CPRI, Bangaloref) IPH Germany.

However, if the type test certificates produced are from anyother internationally accredited test laboratory, the samewill also be considered subject to verification of

accreditation certification. The Type test reports shall notbe older than 5 yrs and shall be valid till validity of offer.

6.1.4. Tests during manufacture shall mean those tests, whichare to be carried out during the process of manufacture andend inspection by the Bidder to ensure the desired qualityof the end product to be supplied by him.

6.1.5 Tests after installation shall mean tests made todemonstrate the integrity of the cable system as installed.


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6.1.6 For all type and acceptance tests, the acceptance valuesshall be the values guaranteed by the Supplier in theproforma for "Guaranteed Technical Particulars", furnishedin this Specification or acceptance value specified in thisspecification, whichever is more stringent for that particulartest.

6.1.7 Pre-qualification test shall mean those tests made beforesupplying a cable system on a general commercial basis atype of cable system covered by this standard, in orderdemonstrate satisfactory long term performance of thecomplete cable system.

6.2 Test Reports to be enclosed.

The tests must have been conducted on the cables &Accessories as per IEC 62067.

6.2.1 Type Tests on Cable System

Following type tests shall be conducted on the completecable as per IEC-62067.

a) Bending test followed by installation of accessoriesand a partial discharge test at ambient temperature.

b) Tan Delta measurement (Dielectric power factor test)c) Heating cycle voltage testd) Partial discharge tests - at ambient temperature and

at high temperature.e) Lighting impulse voltage test followed by power

frequency voltage test.f) Tests of outer protection for buried joints.Note: Prior to conducting the above type tests check on

insulation thickness of the cable shall be carried outon a representative piece of cable length as per IEC-62067.

6.2.2. Type tests on accessories

All the type tests shall be carried out to prove the generalqualities and design of given types of cable accessories.The type shall conform to the latest IEC 62067.

6.2.3 Pre-qualification test on cable system.


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The Pre-qualification test shall be carried out on givencable system. The Pre-qualification test shall conform tothe latest IEC 62067. The bidders who are conducting PQtest shall be considered subject to the condition that thebidder shall submit an undertaking they will submit the testreports for the above before award of contract.

6.3 Routine tests, acceptance tests and special tests

The cable and accessories shall be subjects to all relevantroutine, acceptance and special tests as described in IEC62067 or any other relevant standards. The detailed list ofsuch tests and copies of reports of such tests conducted onsimilar material shall be furnished with the offer. TheBidder is required to carry out all the acceptance testssuccessfully in the presence of Purchaser's representativebefore dispatch. All special and routine tests shall beperformed at the factory in the presence of Purchaser'srepresentative. All test reports shall be submitted and gotapproved by the purchaser before delivery of equipment.

6.4 Tests during installation

The cable shall be meggered before jointing. After jointingcomplete cable shall be tested before commissioning. Thecable core shall be tested for

a) Continuityb) Absence of cross phasingc) Insulation resistance to earth

6.5 Tests after installation

Following tests shall be carried out as per IEC - 62067 on

the complete installation after completion of cable laying,jointing and providing all necessary accessories.

a) Insulation resistance testb) DC/AC testing in accordance with IEC-62067c) Site tests on non-metallic sheaths in accordance with

IEC-229.d) Test for detection and sealing of pinholes.

The supplier shall also indicate any additional special test

at site recommended by them to ensure satisfactoryoperation.


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Note: Site Testing shall include tests before andduring Installation, tests on the complete installationduring and after completion of cable laying, cable

jointing and completion of end terminations. Suppliershall carry complete testing and commissioningequipment.

6.6 Additional tests

The purchaser reserves the right for carrying out any othertests of reasonable nature at the works of the supplier /Laboratory or at any other recognized laboratory / researchinstitute in addition to the above mentioned type,acceptance and routine tests at the cost of the purchaserto ensure that the material complies with the intent of thisspecification.

6.7 Commissioning tests

All the Commissioning tests shall be carried out beforecommissioning of the complete cable system. The typetests shall conform to the latest IEC 62067.


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7.1 INSPECTION

7.2 The purchaser may carry out inspection at any stage ofmanufacture. The successful bidder shall grant freeaccess to the purchaser's representative at areasonable time when the work is in progress.Inspection and acceptance of any equipment underthis specification by the purchaser shall not relieve thebidder of his obligation of furnishing equipment inaccordance with the specification and shall notprevent subsequent rejection if the equipment is foundto be defective. The supplier shall keep the purchaserinformed in advance about the manufacturing programso that arrangement can be made for inspection. Thepurchaser reserves the right to insist for witnessingthe acceptance / routine testing of the bought outitems.

7.3 No material shall be dispatched from its point ofmanufacture unless the material has beensatisfactorily inspected and tested.

7.4 The supplier shall give 15 days (within India) / 45 days(Other than India) advance intimation to enable thepurchaser to depute his representative for witnessingtypes, acceptance and routine tests.


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8.0 QUALITY ASSURANCE PLAN

8.1 The bidder shall invariably furnish the following informationalong with this offer failing which the offer shall be liable forrejection. Information shall be separately given forindividual type of equipment offered.

i. The Structure of organization

ii. The duties and responsibilities assigned to staffensuring quality of work.

iii. The system of purchasing, taking delivery andverification of materials.

iv. The system for ensuring quality of workmanship.

v. The quality assurance arrangements shall conform tothe relevant requirement of ISO-9001 or ISO 9002 asapplicable.

vi. Statement giving list of important raw materials,names of sub-suppliers for the raw materials, list ofstandards according to which the raw material aretested, list of tests normally carried out on rawmaterial in the presence of supplier representative,copies of test certificates.

vii. Information and copies of test certificates as on (i)above in respect of bought out tems.

viii. List of manufacturing facilities available.

ix. Level of automation achieved and list of areas wheremanual processing exists.

x. List of areas in manufacturing process, where stageinspections are normally carried out for qualitycontrol and details of such tests and inspections.

xi. List of testing equipment available with the bidder forfinal testing of equipment specified and test plantlimitation, if any vis--vis the type. Special

acceptance and routine tests specified in the relevantstandards. These limitations hall be very clearly


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brought out in "Schedule of Deviations" from thespecified test requirements.

8.2 The Contractor shall within 30 days of placement of order,submit the following information to the purchaser.

i) List of the raw material as well as bought outaccessories and the names of sub-suppliers selectedfrom those furnished alongwith the offer.

ii) Type test certificates of the raw material and boughtout accessories if required by the purchaser.

iii) Quality Assurance Plan (QAP) with holds points forpurchaser's inspection. QAP and purchasers holdpoints shall be discussed between the purchaser andcontractor before the QAP is finalized.

iv) The contactor shall submit the routine test certificatesof bough out accessories and central excise passesfor raw material at the time of routine testing ifrequired by the purchaser and ensure that the qualityassurance requirements of specification are followedby the sub-contractor.

8.3 The Quality Assurance Program shall give a description ofthe Quality System and Quality Plans with the followingdetails.

i) Quality System:

The Structure of the Organization

The duties and responsibilities assigned to staffensuring quality of work.

The system of purchasing, taking delivery ofverification of materials.

The system of ensuring of quality workmanship.

The system of control of documentation.

The system of retention of records.

The arrangement of contractor internal auditing.

a) A list of Administrator and work procedures requiredto achieve contractors quality requirements. Theseprocedures shall be made readily available to the

purchaser for inspection on request.


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ii) Quality Plans:

An outline of the proposed work and programsequence.

The structure of contractor's organizations forthe contract.

The duties and responsibilities ensuring qualityof work.

Hold and notification points.

Submission of engineering documentsrequired by this specification.

The Inspection of the materials andcomponents on request.

Reference to contractors work procedures

appropriate to each activity. Inspection during fabrication / construction.

Final Inspection and test.

9.0 DOCUMENTATION

9.1 All drawings shall conform to International Organization forStandardization (ISO) 'A' series of drawing sheet / IndianStandards Specification. All drawings shall be in ink andsuitable for micro filming. All dimensions and data shall be

in S.I. units. Technical descriptions, data sheets,catalogues and other material submitted with thespecification.

9.2 List of drawings and documents

The supplier shall furnish four sets of relevant, descriptiveand illustratively published literature pamphlets and thefollowing / particulars for preliminary study along with theoffer.

i) General information and overall dimensional(sectional) drawing.

ii) Principal technical data.iii) Description of insulation and sheathing.iv) Cable current Vs temperature characteristicsv) Drawings indicating phase transposition of cable

during laying.vi) Cable drum particulars and shipping dimensionsvii) Drawings of joints and cable terminations.


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viii) Reference lists of supply and installed cable andaccessories including customer identification andyear of installation.

ix) List of accessories included in the offer.x) All relevant test reports as per Clause 6.0 and test

facilities available with the supplier.xi) Any other relevant particulars.

9.3 The successful supplier shall, within 2 weeks of placementof order, submit four sets of final version of all the abovedrawings for purchaser's approval. The purchase shallcommunicate comments / approval on the drawings to thesupplier within reasonable period. The supplier shall, ifnecessary, modify the drawings and resubmit four copiesof the modified drawings for purchaser's approval withintwo weeks from the date of comments. After receipt ofpurchaser's approval the supplier shall, within three weeks,submit Ten (10) prints and two good quality reproducible ofthe approved drawings for owner's use. Further. Thesupplier shall also furnish the following calculations for theinformation of purchaser.

i) Current carrying capacity under laid condition.ii) Sheath induced voltage under normal operating and

fault condition.iii) Guaranteed losses, namely conductor, sheath and

dielectric losses at rated current.9.4 The successful supplier shall also furnish ten (10) copies of

bound manuals and two soft copies (in CD) covering allrelevant information and drawings pertaining to the cableand accessories including laying and commissioning.

9.5 The manufacturing of the cable and accessories shall bestrictly in accordance with the approved drawings and no

deviation shall be permitted. All manufacturing workagainst this specification prior to the approval of drawingshall be at supplier's risk.

9.6 Approval of drawings / work by the owner shall not relievethe supplier of any of his responsibilities and liabilities forensuring correctness and correct interpretation of thedrawings for meeting the requirements of the latest revisionof the applicable standards, rules and codes of practices.The cable and its accessories shall conform in all respects

to high standards of engineering, design, workmanship andlatest revision of relevant standards at the time of supply


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and purchaser shall have the power to reject any work ormaterial which, in purchaser's judgment, is not in fullaccordance herewith.

9.7 Test Reports

i) Four copies of Type test reports shall be furnished tothe owner within one week of conducting the test.One copy will be returned duly certified by thepurchaser to the supplier within two weeks thereafterand on receipt of the same, supplier shall commencewith the commercial production of the concernedmaterial.

ii) Four copies of special or acceptance test reportsshall be furnished to the purchaser. One copy willbe returned duly certified by the purchaser and onlythereafter the material shall be dispatched.

iii) All records of routine test reports shall be maintainedby the supplier at his works for periodic inspection bythe purchaser.

iv) The supplier shall maintain all test reports of testsconducted during manufacture. These shall beproduced for verification as and when requested forby the purchaser.

9.8 The bidder shall also prepare permanent records of all "asbuilt" cable installations. The record shall include thefollowing field data:

a) Actual route map of cable.b) Location of the cable in relation to existing facilities,

etc., and depth.c) Detailed drawing and various types of crossings.d) Position and types of all joints.e) Accurate lengths from joint to joint and

manufacturer's cable drum number.

The actual route map shall be prepared in sheets to thescale 1:500.The plan should contain detailedmeasurements of the cable and joints and all permanentland marks and subsoil obstructions. Detailed

measurement of depth shall also be shown in crosssectional views.


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9.9 The successful bidder shall also furnish ten (10) copies of

bound manuals covering all relevant information anddrawings pertaining to the cable and accessories includinglaying and commissioning.

9.10 Approval of drawings / work to be obtained for roadcrossing, culvert crossing , bridge crossing, etc. shall be inthe scope of Bidder. GETCO Engineer in Charge of workshall not relieve the bidder of any of his responsibilities andliabilities for ensuring correctness and correct interpretationof the drawings for meeting the requirements of the latestrevision of the applicable standards rules and codes ofpractices.

10.0 PACKING AND FORWARDING

10.1 Supplier shall indicate in the offer, the maximum standardlength of power cable, which can be supplied on one drum.Purchaser desires minimum standard lengths shall be suchthat joint can be avoided. The drawing can be referred withGETCO by the Bidder in order to finalize the single lengthof each size of cable.

10.2 The cut ends of the cable shall be sealed by means of non-hygroscopic sealing material so as to protect the cable frommoisture and other atmospheric effects during transit andlaying. The following information shall be marked on thedrum.

a) Trade name / Trade markb) Name of the manufacturerc) Nominal cross-sectional area of the conductord) Type of cable and voltage

e) Length of cable on the drumf) Direction of rotation of drum (Arrow)g) Gross weight of the drumh) Consigneei) Order No.j) Tare weight of drum.

10.3 The drum shall be of such construction as to ensuredelivery of cable at site free from displacement and damageand shall be able to withstand all stresses during handling

in transit and laying. The drum shall be suitable for wheelmounting.


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10.4 Drums or parts of drums made from ferrous metals shall be

treated with suitable rust preventive finish or coating tominimize rusting during transit or storage.

10.6 Bolts, screws, nails etc., if used in the construction of drumsshall be counter sunk so that the heads are below thesurface of the flange.

10.7 Drum construction, cable placement on the drum and theinstallation of protective wrappings etc., shall be carefullycoordinated to prevent damage to the cable during normalhandling, ocean shipment and land transportation of thecable to site. The supplier shall also indicate the method ofstorage of cable drums at site in case the cables are to bestored for longer periods.

10.8 The cable accessories shall be packed suitably so as towithstand handling during transit. The supplier shall beresponsible for any damage during transit due to improperand inadequate packing and handling. The easilydamageable material shall be carefully packed and markedwith appropriate caution symbols. The supplier without anyextra cost shall supply any material found short inside thepacking cases.

10.9 Each consignment of cable accessories shall also beaccompanied by a detailed packing list containing thefollowing information:

a) Name of the consigneeb) Details of consignmentc) Destinationd) Total weight of consignment

e) Handling and unpacking instructionsf) Bill of material indicating contents of each package.

The supplier shall ensure that, the packing list and bill ofmaterial are approved by the purchaser, before dispatch.


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ANNEXURE

TECHNICAL DATA SHEETS FOR 220 KV XLPE CABLES

1.0 GUARANTEED TECHNICAL PARTICULARS FOR 220KV,1200sq.mm. XLPE INSULATED POWR CABLE AND

ACCESSORIES

SlNo

Description Requirements127/220

Particulars

1. Name and country of manufacture

2. Manufacture's type designation

3. Rated voltagea) Nominal : kVb) Highest : kV

220245

4. Suitable for earthed or unearthed system

5. Permissible voltage and frequencyvariation for satisfactory operationa) Voltage (Volts)b) Frequency (Hz)

24550 5%

6. a) At the maximum conductor temperatureof 90C, directly buries at 1.5m

depth, ground temperature of 30C,soil thermal receptivity of 150c - Cm/ watti) Continuous current carrying

capacity- One Circuit Operation : A- Two Circuits Operation: A- Spacing between phases : mm- Spacing between circuits : mm

ii) Temperature rise of 10%

overload current : Cb) At the Maximum conductor temperature

of 90C, laid in free air, ambient airtemperature of 50C : A

7. Rating factors applicable to the current incl. No. 6 (a) i) two circuits operation forthe following variations / conditions ofinstallation.

a) Variation in ground temperature from25C to 50C in steps of 5C.

b) Group rating factor for differentspacing (center to center ) of cables


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installed in flat formation.

8. Short circuit capacity:a) Short Circuit current kA (rms)b) Duration of short circuit (sec)c) Permissible conductor temperature forthe short circuit duty with conductortemperature as 90C before inception ofshort circuit

Min. 40Min. 1.0Max. 250

9. Dielectric loss angle at normal frequencyand rated voltage

10. Conductor :-a) Materialb) Nominal cross sectional area (mm2)c) Number and nominal diameter of

stands (No. / mm)d) Nominal diameter (mm)e) Maximum D.C. resistance of conductorfor at 20C ( /Km)f) Maximum A.C. resistance of conductorfor at 90C. ( /Km)

11. Impedances at 50 Hz1.Positive & Negative Sequence = /Km2. Zero sequence = /Km

12. Electro - static Capacitance at 50 Hz (

F/km)13. Maximum charging current at the ratedvoltage (A/Km)

14. Conductor screening:a) Materialb) Extruded / wrapped or bothc) Nominal Thickness (mm)

15. Insulation: -a) Material of insulation (XLPE)b) Extrusion and curing system (VCV)

c) Dry or steam curing (Dry)d) Extruder (Triple common)e) Thickness of insulation

1) Nominal Thickness (mm)2) Minimum Thickness (mm)

f) Variation of thickness as per IEC 60840clause 10.6.2g) Insulation resistance at 90C ( .m),20 C ( .m)h) Maximum dielectric stress at the rated

voltage (kV/mm)i) At the conductor screen (kV/mm)

23.0


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ii) Mean (kV/mm)iii) At the insulation screen (kV/mm)

16. Insulation screen :a) Materialb) Extruded / wrapped or bothc) Thickness (mm)

17. Beddinga) Materialb) Nominal Thickness (mm)

18. Metallic Sheatha) Type of materialb) Nominal thickness (mm)c) Minimum thickness at any point (mm)d) Nominal outer diameter (mm)

e) Whether the sheath is to be earthed atboth terminations? (Yes / No)f) Sheath induced voltage correspondingto the rated current (V / km)g) Sheath current corresponding to therated current (A)h) Screen loss corresponding to therated current (W / km)i) Sheath Voltage corresponding to thesymmetrical short circuit current (kV / km)

19. Short circuit capacity of metallic sheath:-a) Shirt circuit current (kA)b) Duration of shirt circuit (s)c) Permissible sheath temperature forthe short circuit duty with conductortemperature as 90C before inception ofshort circuit.

Min. 40

Min. 1.0

20. Outer sheatha) Anti-corrosion layer

I. Material

II. Nominal thickness (mm)III. Minimum thickness at any point

(mm)

PVC

21. Overall diameter of completed cable(mm)

22. Unit weight of completed cable (kg/m)23. Minimum installation radius of the cable

(mm)

24. Permissible pulling tension when pulledwith a eye (kg)

25. Cable durms:a) Dimensions


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b) barrel diameterc) Gross weight (kg)d) Standard shipping length (m)c) Maximum shipping length (m)

26. Outdoor type terminationsa) Name and country of manufactureb) Type of main insulationc) Material of the insulatord) Creepage distance (mm)e) Color of the insulatorf) Weight of completed termination (kg)g) Whether cable termination is completewith all accessories (yes / no)

Brown

Yes

27. Straight joint

a) Name and country of manufactureb) Type of main insulationc) Material of insulation flanged) Weight of competed joint

i)Without protection box and compoundii) With protection box and compound

28. a) Maximum dielectric loss of 3-phasecables laid in ground at the rated voltage,frequency and the maximum conductortemperature (kW/km)

b) Total losses of 3 phase cables at thecondition with the rated current (kw/km)

29. Attention to carrier signal operating overa frequency range of 50-200 kHz.

30. Phase to ground characteristicimpedance at 50-200 kHz.

31. Maximum shelf life(a) Cable (Year)(b) Terminations (Year)(c) Straight joints (year)

32. 1 min wet power frequency withstandvoltage (kV)

460

33. Lightning impulse withstand voltage (kVp) 1050

34. Maximum partial discharge magnitude atthe specified test voltage (pC)


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2.0 GUARANTEED TECHNICAL PARTICULARS FOR 220kV,400sq.mm. XLPE

INSULATED POWER CABLE AND ACCESSORIES

SlNo

Description Requirements127/220

Particulars

1. Name and country of manufacture

2. Manufacture's type designation

3. Rated voltagea) Nominal : kVb) Highest : kV

220245

4. Suitable for earthed or unearthed system5. Permissible voltage and frequencyvariation for satisfactory operationa) Voltage (Volts)b) Frequency (Hz)

24550 5%

6. a) At the maximum conductor temperatureof 90C, directly buries at 1.5mdepth, ground temperature of 30C,soil thermal receptivity of 150c - Cm/ watt

i) Continuous current carryingcapacity- One Circuit Operation : A- Two Circuits Operation: A- Spacing between phases : mm- Spacing between circuits : mm

ii) Temperature rise of 10%overload current : C

b) At the Maximum conductor temperatureof 90C, laid in free air, ambient air

temperature of 50C : A7. Rating factors applicable to the current in

cl. No. 6 (a) i) two circuits operation forthe following variations / conditions ofinstallation.

a) Variation in ground temperature from25C to 50C in steps of 5C.

b) Group rating factor for differentspacing (center to center ) of cablesinstalled in flat formation.

8. Short circuit capacity:a) Short Circuit current kA (rms) Min. 40


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b) Duration of short circuit (sec)c) Permissible conductor temperature forthe short circuit duty with conductortemperature as 90C before inception ofshort circuit

Min. 1.0Max. 250

9. Dielectric loss angle at normal frequencyand rated voltage

10. Conductor :-a) Materialb) Nominal cross sectional area (mm2)c) Number and nominal diameter ofstands (No. / mm)d) Nominal diameter (mm)e) Maximum D.C. resistance of conductor

for at 20C ( /Km)f) Maximum A.C. resistance of conductorfor at 90C. ( /Km)

11. Impedances at 50 Hz1.Positive & Negative Sequence = /Km2. Zero sequence = /Km

12. Electro - static Capacitance at 50 Hz (F/km)

13. Maximum charging current at the ratedvoltage (A/Km)

14. Conductor screening:a) Materialb) Extruded / wrapped or bothc) Nominal Thickness (mm)

15. Insulation: -a) Material of insulation (XLPE)b) Extrusion and curing system (VCV)c) Dry or steam curing (Dry)d) Extruder (Triple common)e) Thickness of insulation

1) Nominal Thickness (mm)2) Minimum Thickness (mm)

f) Variation of thickness as per IEC 60840clause 10.6.2g) Insulation resistance at 90C ( .m),20 C ( .m)h) Maximum dielectric stress at the ratedvoltage (kV/mm)i) At the conductor screen (kV/mm)ii) Mean (kV/mm)

iii) At the insulation screen (kV/mm)

23.0

16. Insulation screen :


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a) Materialb) Extruded / wrapped or bothc) Thickness (mm)

17. Beddinga) Materialb) Nominal Thickness (mm)

18. Metallic Sheatha) Type of materialb) Nominal thickness (mm)c) Minimum thickness at any point (mm)d) Nominal outer diameter (mm)e) Whether the sheath is to be earthed atboth terminations? (Yes / No)f) Sheath induced voltage corresponding

to the rated current (V / km)g) Sheath current corresponding to therated current (A)h) Screen loss corresponding to therated current (W / km)i) Sheath Voltage corresponding to thesymmetrical short circuit current (kV / km)

19. Short circuit capacity of metallic sheath:-a) Shirt circuit current (kA)b) Duration of shirt circuit (s)

c) Permissible sheath temperature forthe short circuit duty with conductortemperature as 90C before inception ofshort circuit.

Min. 40

Min. 1.0

20. Outer sheatha) Anti-corrosion layer

I. MaterialII. Nominal thickness (mm)III. Minimum thickness at any point

(mm)

PVC

21. Overall diameter of completed cable(mm)

22. Unit weight of completed cable (kg/m)

23. Minimum installation radius of the cable(mm)

24. Permissible pulling tension when pulledwith a eye (kg)

25. Cable durms:a) Dimensionsb) barrel diameter

c) Gross weight (kg)d) Standard shipping length (m)


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c) Maximum shipping length (m)

26. Outdoor type terminationsa) Name and country of manufactureb) Type of main insulationc) Material of the insulatord) Creepage distance (mm)e) Color of the insulatorf) Weight of completed termination (kg)g) Whether cable termination is completewith all accessories (yes / no)

Yes

27. Straight jointa) Name and country of manufactureb) Type of main insulationc) Material of insulation flange

d) Weight of competed jointi)Without protection box and compoundii) With protection box and compound

28. a) Maximum dielectric loss of 3-phasecables laid in ground at the rated voltage,frequency and the maximum conductortemperature (kW/km)b) Total losses of 3 phase cables at thecondition with the rated current (kw/km)

29. Attention to carrier signal operating over

a frequency range of 50-200 kHz.30. Phase to ground characteristicimpedance at 50-200 kHz.

31. Maximum shelf life(a) Cable (Year)(b) Terminations (Year)(c) Straight joints (year)

32. 1 min wet power frequency withstandvoltage (kV)

460

33. Lightning impulse withstand voltage (kVp) 1050

34. Maximum partial discharge magnitude atthe specified test voltage (pC)


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SEAL OF THE FIRM. SIGNATURE OF THE BIDDER.

NOTE: THE BIDDER MAY USE SEPARATE SHEET FOR FILLING UP

ABOVE FORMAT FOR GIVING MORE DETAILS.


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GUARENTED TECHNICAL PARTICULARSFOR

EARTHING CABLE

SR

NODESCRIPTION

1. Manufacturer's name

2. a. Voltage grade

3. Reference Standard

4. Conductor

1) Materials

2) Nominal cross sectional area (sq.mm)

3) Flexibility class

4) Form of conductor

5) Max. DC resistance of conductor at

20VC(ohm/km)

5. Insulation

1) Materials

2) Nominal thickness(mm)

6. Approximate overall diameter of cable (mm)

7. (a) Short circuit current carrying capacity for 1

second duration (KA)

Signature of the Bidder:__________

Name:


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_______________________

Designation:___________________

Date: _____________

Authorised common rubber

Stamp / seal of the bidder:_________

NOTE: THE BIDDER MAY USE SEPARATE SHEET FOR FILLING UP

ABOVE FORMAT FOR GIVING MORE DETAILS.

Date post:	14-Apr-2018
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