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HARYANA VIDYUT PRASARAN NIGAMLIMITED

SECTION-V

TECHNICAL BIDDING DOCUMENT No.REC-112

FOR

SUPPLY, ERECTION AND COMMISSIONING

OF

LILO OF ONE CIRCUIT OF 400KV SAMAYPUR- GREATER NOIDA

LINE WITH QUAD BERSIMIS CONDUCTOR AT 400KV

SUBSTATION NAWADA (FARIDABAD)

ON TURNKEY BASIS

TECHNICAL

VOLUME II

Chief Engineer/MM,Haryana Vidyut Prasaran Nigam LimitedShakti Bhawan, Sector-6,

Panchkula-134113Ph:- 0172-2583724, 2583744,Fax:- 0172-2583724

JUNE, 2011

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PART- I

SCOPE AND BOQ OF LILO OF ONE CIRCUIT OF

400KV G.NOIDA SAMAYPUR LINE

AT 400KV S/STN. NAWADA.

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PART -1 (GENERAL)1.1 INTRODUCTION:

The scope of this specification covers Engineering and Construction of terminationarrangement of LILO of one ckt. of 400kV SamaypurG-Noida Quad Bersimis line onBersimis ACSR / Aluminum Tubes at 400kV S/Stn. Nawada as per arrangementshown in the indicative sketch (Annexure-1 attached with the bid).The detailed Engineering of the Termination arrangement is in the scope of the bidder,which shall be submitted to HVPN for getting concurrence of PGCIL before executionof the work.

1.2 SCOPEThe detailed scope of work shall be as under:

1

2.3.

4.

5.

6.7.8.9.

10.11.12.

13.

14.

15.

16

17.

18.

Loop in loop out arrangement at tower No. 108 of one ckt. of 400kV Samapur-G-Noida Quad Bersimis line of PGCIL at 400kV S/Stn. NawadaSupply and erection of Bersimis conductor.Supply and erection of special T-clamps for taking in connection from the existingQuad Bersimis line in line with PGCIL practice.Fabrication, supply and erection of 400kV S/Stn. Gantries / Beam Structures as perDrawing / BOM to be supplied by HVPN.Supply and erection of IPS 4 Aluminum tube along with corona ring and weldingsleeves.

Supply and erection of Bus Post Insulator alongwith their structure for supporting 4Aluminum tube as per Sr. No. 5 above.Supply and erection of spacers and connectors as per BOQ.Supply and erection of various S/Stn. and Line Hardware fittings as per BOQSupply and erection of 160kN Polymer Insulators as per BOQSupply and erection of 390 KV Gapless L.A. alongwith structures.Supply and erection of Earthwire (size 3.66mm) alongwith required clamps andconnector as per BOQ / as per site requirement.The existing Earthmat of the S/Stn. shall be extended in the area of proposed LILOarrangement as per PART (Switchyard Erection) alongwith Risers & ElectrodesSupply and erection of lightning mast as per DSLP calculation to be carried out by theBidder.

Lighting with 2x400W, HPSV lamp with high flood lighting fixture suitable for outdoormounting with aluminum enclosure along with LT AC copper cables for connectionsfrom existing ACPs / DBs.The termination arrangement for PGCIL TL No. 108 to gantries shall be with slackspan and restricting the angle of deviation at Gantries to max. 150only.The electrical clearance of aluminum pipes on BPI from existing 400kV PGCIL lineshall be maintained and the ground level of BPI structure shall be decided accordinglyduring detailed Engineering. The crossing arrangement profile shall be prepared andgot supplied for concurrence of PGCIL.The detailed scope of Civil part, its technical specification has been shown inPART-VI.

1.2.3 SCHEDULE OF QUANTITIES

The detailed description of various items/equipment are indicated at Annexuresattached with the bid. The bill of quantity of major equipment is also indicated andwherever the quantities are not indicated the bidder is required to compute thequantity. Bidder is required to indicate unit rate and total price of the items under aparticular head in bid proposal sheets. Bidder should include all such items in the bidproposal sheets, which may not be specifically mentioned but are essential for theexecution of the contract.The Technical specification / BOQ is also attached with the bid.

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1.3 GENERAL ELECTRICAL LAYOUTThe GELO for 400kV S/Stns. Nawada and the indicative sketch for terminationarrangement of LILO of one ckt. of 400kV SamaypurG-Noida Quad Bersimis line at400kV S/Stn. Nawada is attached with the bid (GELO drg. No. HSD-1/3157 andindicative sketch drg. No.-1) along with earthmat layout drawing No. 5257 PN088-NWD-E-SYD-EAR-0017.

1.4 LOCATIONS OF THE SUBSTATIONThe location of the substation along with the nearest Railhead is indicated at

Annexure-II1.5 METEOROLOGICAL DATA.

The meteorological data of the substation is indicated at Annexure-III. However, fordesign purpose, ambient temperature should be considered as 50 C.

1.6 DRAWING1. The bidder shall maintain inter equipment distances, bay length, bay width etc. in

accordance with the enclosed general/electrical layouts of the respective substationswhile doing so the bidder will ensure that the statutory electrical clearances requiredfor substation are maintained as per General Technical Requirements.

2. The drawing enclosed gives the basic scheme, layout of substation, substation

buildings, associated service etc. In case of any discrepancy between the drawing andtext of specification the bidder is advised to get these clarified before submission ofbid. No claim what-so-ever on this score shall be entertained after award of contract.

3. The bidder shall adopt the design of galvanised steel structure for tower, beam andequipment supporting structures for 400kV S/Stns. supplied by HVPNL.

1.8 SPARES1.8.1 MANDATORY SPARES

The following quantities shall be supplied by the bidder as spares:-i) 10% spares of total Quantity of items at Sr.No.-2.2 to 2.5 & 1.1 of BOQ (Annexure-A1)

ii) One number each of items at Sr. No. 3.1 to 3.4of BOQ (Annexure-A1)

iii) Four number each of items at Sr. No. 2.1 & 5.1of BOQ (Annexure-A1)Notes:

1. The bidder or his authorized representative should visit the site of works and itssurroundings to obtain himself at his responsibility and expenses, all informationregarding general site characteristics, accessibility, infrastructure details and factualposition in respect of scope of work vis--vis GELO drg. and indicative LILOarrangement drg. attached with the bid document. Any alteration/addition envisagedin the document must be got clarified before submission of the bid.

2. No extra payment shall be made on account of any change in the layout drgs. requiredfor providing DSLP as per Rezvik method.

3. Any other items not specifically mentioned in the specification but which are requiredfor erection, testing, commissioning and satisfactory operation of LILO arrangementare to be considered as included in the scope of the specification unless specificallyexcluded

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ANNEXURE-ITERMINATION ARRANGEMENT AT 400KV SUB-STATIONS

Sr.No.

Name ofS/Stn.

Scope of Work Indicative Terminationarrangement Drg. No.

1.(A)

400 kVS/Stn.

Nawada

The scope of this specification coversconstruction of termination arrangement ofLILO of one ckt. of 400kV SamaypurG-NoidaQuad Bersimis line at 400kV S/Stn. Nawadaas per arrangement shown in the indicativesketch (attached with the Bid)

GELO Drawing No.- HSD-1/3157

Indicative TerminationArrangementDrawing No.-1

ANNEXURE-IILOCATION OF SUB-STATIONS

Sr. No. Name of Substation Nearest Rail Head

1. 400 kV S/Stn. Nawada Faridabad

ANNEXURE-IIIMETEOROLOGICAL DATA

Equipment to be supplied against this specification shall be suitable for satisfactory continuousoperation under the following tropical conditions:

i) Location In the state of Haryana

ii) Max. Ambient air temp. (deg. C) 50iii) Min ambient air temp. (deg. C) -2.5

iv) Daily average air temp. (deg. C) 35v) Average no. of Thunder storm

days per Annum45

vi) Maximum Relative Humidity (%) 100vii) Minimum Relative Humidity (%) 26viii) Average annual rain fall (mm) 900ix) Max. wind pressure (kg/sq m) 195x) Max. altitude above mean sea

level (meters)1000

xi) Isoceraunic level (days/year) 45xii) Seismic level

(horizontal acceleration)0.3 g

xiii) Average no. of rainy daysper Annum

120

NOTE: Moderately hot and humid tropical climate conductive to rust and fungus growth.The climate conditions are also prone to wide variations in ambient condition.Smoke is also present in the atmosphere. Heavy lightening also occurs duringJune to October.

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Annexure-A1BILL OF QUANTITIES

Sr.No Item Descript ion Uom Qty

1 CONDUCTORS/ TUBE supply

1.1 ACSRBersimis conductor Mtr 800

1.2 4" IPS Al tube suitable for Quad Bersimis Mtr 75

1.3 Welding sleeves for 4" IPS Al tube (Included in 1.2) Nos 12

1.4 Corona cap for 4" IPS Al tube (Included in 1.2) Nos 35

2 SPACERS & CONNECTORS supply

2.1 Spacer for QuadACSRBersimis - Rigid type - 400 kV Nos 32

2.2 Special T- clamp for single Bersimis to single Bersimis for taking in arrangement atthe Tower

Nos 24

2.3 C-Wedge connectors for Bersimis ACSR No. 15

2.4 Terminal connector for BPI suitable for 4" IPS Al Tube Rigid/ flexible Nos 12

2.5 Inter connector suitable for 4" IPS Al tube to quad Bersimis Nos 30

3 400kV HARDWARE supply

3.1 400 KV QUAD TENSION LINE HARDWARE FITTINGSSUITABLE FOR 160 KNPOLYMER INSULATORS COMPLETE WITH ALL ASSOCIATED HARDWARE,

ACCESSORIES INCLUDING CORONA RINGS ETC. (TO BE USED AT LILOGANTRIES)

SET 6

3.2 400 KV DOUBLE TENSION S/STN. STRING HARDWARESUITABLE FOR 160KN POLYMER INSULATOR STRING WITH ALL HARDWARE, ACCESSORIESFOR QUAD ACSR BERSIMIS CONDUCTORS WITH TENSION CLAMP SET WITHTURN BUCKLE (DOUBLE ANCHORING)

SET 24

3.3 400 KV DOUBLE TENSION S/STN. STRING HARDWARESUITABLE FOR 160

KN POLYMER INSULATOR STRING WITH ALL HARDWARE, ACCESSORIESFOR QUAD ACSR BERSIMIS CONDUCTORS WITH TENSION CLAMP SETWITHOUTTURN BUCKLE (DOUBLE ANCHORING)

SET 1

3.4 400 KV SINGLE SUSPENSION S/STN. PILOT HARDWARE FITTINGSSUITABLE FOR 160 KN POLYMER INSULATOR STRING COPLETE WITH ALLHARDWARE ACCESSORIES FOR QUAD ACSR BERSIMIS CONDUCTORS

SET 24

4 390kV Surge Arrester (Gapless)

4.1 390kV Surge Arrester (Gapless) Nos 6

5 Polymer insulator

5.1 160 KN Polymer insulator string with corona ring & other accessories ( Complete

String)

Nos 15

6 EARTHING supply

6.1 Earth wire of size 3.66 mm Mtr 12

6.2 75 x 12 mm Flat Mtr 10

6.3 Cleat type clamps for earthing down conductors Nos 45

6.4 Earth wire tension clamps with D-shackle assembly Nos 4

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6.5 PG-clamps for GS earth wire Nos 2

6.6 Pad type compressive clamp for earth wire down conductor Nos 1

6.7 40mm dia MS rod conductor Mtr 300

7 420kV BPI Supply

7.1 420kV Bus post insulator Nos 12

8. Lighting arrangement8.1 2x400W, HPSV lamp in high flood lighting fixture suitable for outdoor mounting with

aluminum enclosureNo. 2

8.2 LT AC copper cables for connections from existing ACPs / DBs, for Lightningarrangement at termination area.

Lot Lo

9 Mandatory spares as per Clause No.-1.8 Lot Lo

Note: 1 The quantit ies given in BOQ are approx. and for evaluation purpose. In case variation in Quantities at the time of Detailed Engineering , the actual quantities shabe payable as per Quoted rates.

2 The detailed Engineering of the Termination arrangement is in the scope of thebidder, which shall be submit ted to HVPN for getting concurrence of PGCIL beforeexecution of the work .

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ANNEXURSchedules of items for associated steel structure works to be quoted. The bidder is required to estimatquantities and furnish the unit rate for each item/ works and the total price for each item in the bid prosheets. The list may not be exhaustive, and the bidder may modify/ append the same as required.

Item for associated struc ture work

Sr.

No.

DESCRIPTION LILOarrangement

400 kV S/St

Nawada

Lattice type steel structure of 400kV kV:

Supply of material, preparation of fabrication drawing, galvanizing anddelivery of lattice type steel structure for tower and beams for 400kVswitchyard fabricated from steel conforming to IS: 2062 including nuts-boltsgusset plates foundation bolts and other accessories as per drawingssupplied by the owner.

Main S/Stn. tower and Beam

A STRUCTURE supply along with earth ing mater ial

1.1 Tower type TI Nos 3

1.2 Tower type TH Nos 41.3 Tower type TN Nos 2

1.4 Tower type TC Nos 3

1.5 Tower type TJ Nos 3

1.6 Beam type G1 Nos 2

1.7 Beam type G2 Nos 8

1.8 LM along with DSLP Calculations Nos 2

B Equipment structure

2.1 400kV BPI structure No. 125

2.2 390 kV Surge Arrester (Gap) No. 6

Note -

1. The quantity given above are as approximate. and for evaluationpurpose . In case of variation of quantities at the time of detailedengineering, actual quantit ies shall be payable as per quoted price.

2 The detailed Engineering of the Termination arrangement is in thescope of the bidder, which shall be submitted to HVPN for gettingconcurrence of PGCIL before execution of the work.

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MODEL TECHNICAL SPECIFICATION

PART-GTR(GENERAL TECHNICAL REQUIREMENT)

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PART-GTR (GENERAL TECHNICAL REQUIREMENTS)

CLAUSE NO. PARTICULARS PAGE NO.

1.0 Foreword 1

2.0 General Requirement 1

3.0 Standards 2

4.0 Services to be performed by the 2

Equipment being furnished

5.0 Engineering Data and Drawings 6

6.0 Material/Workmanship 9

7.0 Design Improvements/Coordination 12

8.0 Quality Assurance Programme 12

9.0 Type Testing, Inspection & 13

Inspection Certificate

10.0 Tests 16

11.0 Packaging & Protection 16

12.0 Finishing of Metal Surfaces 16

13.0 Handling, Storing & Installation 18

14.0 Tools and Tackles 20

15.0 Auxiliary Supply 20

16.0 Support Structure 20

17.0 Clamps and Connectors including 20

Terminal Connectors

18.0 Control Cabinets, Junction Boxes, Terminal 22

Boxes & Marshalling Boxes for Outdoor Equipment

19.0 Auxiliary Switches 23

20.0 Terminal Blocks and Wiring 23

21.0 Lamps and Sockets 23

22.0 Bushings, Hollow Column Insulators, 23

Support Insulators

23.0 Motors 23

24.0 Technical Requirement of Equipments 2325.0 Testing and adjustment 2426. 0 Monthly Progress Reports 24

Annexure-A Corona and Radio Interference Voltage(RIV) Test 26

Annexure-B Seismic Withstand Test Procedure 29

Annexure-C List of Specifications 30

Annexure-D List of Drawings/Documents 42

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PART-II

GTR (GENERAL TECHNICAL REQUIREMENTS)

1.0 FOREWORD

1.1 The provisions under this Part are intended to supplement general

requirements for the materials, equipments and services coveredunder other Parts of tender documents and is not exclusive.However in case of conflict between the requirements specified in thisPart and requirements specified under other Parts, therequirements specified under respective Parts shall prevail.

2.0 GENERAL REQUIREMENT

2.1 The bidders shall submit the technical requirements, data andinformation as per the technical data sheets provided in the Volume IIIof bid documents.

2.2 The bidders shall furnish catalogues, engineering data, technicalinformation, design documents, drawings etc.

2.3 It is recognized that the bidders may have standardized on the useof certain components, materials, processes or procedures different

from those specified herein. Alternate proposals offering similarequipment based on the manufacturers standard practice will also beconsidered provided such proposals meet the specified designs,standard and performance requirements and are acceptable to theEmployer.

2.4 Except for lighting fixtures, wherever a material or article is specifiedor defined by the name of a particular brand, Manufacturer or Vendor,the specific name mentioned shall be understood as establishing type,function and quality and not as limiting competition. For lightingfixtures , makes shall be as defined in Part- Lighting System.

2.5 Equipment furnished shall be complete in every respect with allmountings, fittings, fixtures and standard accessories normallyprovided with such equipment and/or needed for erection, completionand safe operation of the equipment as required by applicable codesthough they may not have been specifically detailed in the TechnicalSpecifications unless included in the list of exclusions. Materials and

components not specifically stated in the specification but which arenecessary for commissioning and satisfactory operation of theswitchyard/substation unless specifically excluded shall be deemed tobe included in the scope of the specification and shall be suppliedwithout any extra cost. All similar standard components/parts ofsimilar standard equipment provided, shall be inter-changeable with

one another.

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3.0 STANDARDS

3.1 The works covered by the specification shall be designed, engineered,manufactured, built, tested and commissioned in accordance with the

Acts, Rules, Laws and Regulations of India.

3.2 The equipment to be furnished under this specification shall conformto latest issue with all amendments (as on the date of bid opening) ofstandard specified under Annexure -C of this Part, unlessspecifically mentioned in the specification.

3.3 The Bidder shall note that standards mentioned in the specificationare not mutually exclusive or complete in themselves, but intended tocompliment each other.

3.4 The Bidder shall also note that list of standards presented in thisspecification is not complete. Whenever necessary the list of

standards shall be considered in conjunction with specific IS/IEC.

3.5 When the specific requirements stipulated in the specifications exceedor differ than those required by the applicable standards, thestipulation of the specification shall take precedence.

3.6 Other internationally accepted standards which ensure equivalent orbetter performance than that specified in the standards specified

under Annexure C / individual parts for various equipments shallalso, be accepted, however the salient points of difference shall beclearly brought out in additional information schedule of Vol III alongwith English language version of such standard. The equipmentconforming to standards other than specified under Annexure C /individual parts for various equipments shall be subject toEmployers approval.

3.7 The bidder shall clearly indicate in his bid the specific standards in

accordance with which the works will be carried out.4.0 SERVICES TO BE PERFORMED BY THE EQUIPMENT BEING

FURNISHED

4.1 The 400kV system is being designed to limit the switching surge overvoltage to 2.5pu and the power frequency over voltage to 1.5 pu. Incase of the 400kV system, the initial value of the temporaryovervoltage could be 2.0 pu for 1 - 2 cycles. he equipmentfurnished under this specification shall perform all its functions andoperate satisfactorily without showing undue strain, restrike etc undersuch over voltage conditions.

4.2 All equipments shall also perform satisfactorily under various otherelectrical, electromechanical and meteorological conditions of the siteof installation.

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4.3 All equipment shall be able to withstand all external and internalmechanical, thermal and electromechanical forces due to variousfactors like wind load, temperature variation, ice & snow, (wherever

applicable) short circuit etc for the equipment.

4.4 The bidder shall design terminal connectors of the equipment takinginto account various forces that are required to withstand.

4.5 The equipment shall also comply to the following:

a) All outdoor EHV equipments shall be

suitable for hot line washing.

b) To facilitate erection of equipment, all items to be assembled at

site shall be match marked.

4.6 EHV equipments and system shall be designed to meet the followingmajor technical parameters as brought out hereunder.

4.6.1 System Parameter

S.NO Description of 400 kV

parameters System

1. System operating 400kVvoltage

3. Rated frequency 50Hz

4. No. of phase 3

5. Rated Insulationlevels

i) Full wave impulse 1550kVpwithstand

voltage(1.2/50micro sec.)

ii) Switching impulse 1050kVpwithstand(250/2500 sec.) dry and wet

Iii) One minute power 630kV

frequency dry andwet withstandvoltage (rms)

6. Corona extinction 320kVvoltage

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7. Max. radio 1000 micro-interference voltvoltage forfrequencybetween 0.5 MHzand 2 MHz at320kV rms for400kV system and

156kV rms for220kV system &92 kV rms for132kV system

8. Minimum 25 mm/kVcreepage distance (10500 mm)

9. Min. clearances

i) Phase to phase 4200 mm (for Rod -conductor configuration)

4000 mm (forconductor -onductorconfiguration)

ii) Phase to earth3500 mm

iii) Sectionalclearances 6500 mm

10. Rated short circuit 40 kAcurrent for 1 sec.duration

11. System neutral Effectivelyearthing earthed

Note : The insulation and RIV levels of the equipments shall be as

per values given in the respective chapter of the equipments.

4.7.2 Major Technical Parameters

The major technical parameters of the equipments are given below. Forother parameters and features respective technical parts should bereferred.

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FOR 420 kV SA)

Rated voltage (kV, rms) 420

Rated frequency (Hz) 50

No. of poles 1

Design ambient temperature (C) 50

Rated Insulation levels :

1) Full Insulation levels :

- For arrester housing 1425 kV peak

2) Switching impulse withstand

voltage (250/2500 microsecond) dry and wet

- For arrester housing 1050 kV peak

3) One minute power frequency dry and wet withstand voltage

For arrester housing -630kVrms

4) Min. Creepage distance :-

Phase to ground (mm)

Seismic accelerationPartial discharge :-

-for arrester at 1.05 COV Notexceeding 50 p.c. -

5) System neutral

- Effectively earthed

10500.

0.3g Horizontal

320 (min)

(E) Technical Parameters of Bushings/Hollow Column

insulators/support insulators :

For400 kVSystem

(a) Rated Voltage (kV) 420

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(b) Impulse withstand 1425voltage(Dry&Wet) (kVp)

(c) Switching surge 1050withstandvoltage(dry and wet) (kVp)

(d) Power frequency 630withstand voltage

(dry and wet) (kV rms)

(e) Total creepage 10500distance (mm)

(f) Pollution Class-III Heavy (as per IEC 71) and as specified in

Part-2 for all class of equipment.

(g) Insulator shall also meet requirement of and IEC-815 for 400kV, 220 kV system, as applicable having alternate long & short

sheds.5.0 ENGINEERING DATA AND DRAWINGS

5.1 The engineering data shall be furnished by the Contractor inaccordance with the Schedule for each set of equipment as specified

in the Technical Specifications.

5.2 The list of drawings/documents which are to be submitted to theEmployer shall be discussed and finalised by the Employer at thetime of award.

The Contractor shall necessarily submit all the drawings/ documents

unless anything is waived.The Contractor shall submit 4 (four) sets of drawings/ designdocuments /data/ test reports as may be required for the approval ofthe Employer.

5.3 Drawings

5.3.1 All drawings submitted by the Contractor including those submitted atthe time of bid shall be in sufficient detail to indicate the type, size,arrangement, material description, Bill of Materials, weight of each

component, break-up for packing and shipment, dimensions, internal &the external connections, fixing arrangement required and any other

information specifically requested in the specifications.

5.3.2 Each drawing submitted by the Contractor shall be clearly marked withthe name of the Employer, the unit designation, the specificationstitle, the specification number and the name of the Project. Ifstandard catalogue pages are submitted, the applicable items shall beindicated therein. All titles, noting, markings and writings on thedrawing shall be in English. All the dimensions should be in metricunits.

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5.3.3 Further work by the Contractor shall be in strict accordance with thesedrawings and no deviation shall be permitted without the writtenapproval of the Employer, if so required.

5.4 The review of these data by the Employer will cover only generalconformance of the data to the specifications and documents,interfaces with the equipment provided under the specifications,external connections and of the dimensions which might affect

substation layout. This review by the Employer may not indicate a

thorough review of all dimensions, quantities and details of theequipment, materials, any devices or items indicated or the accuracyof the information submitted. This review and/or approval by theEmployer shall not be considered by the Contractor, as limiting any ofhis responsibilities and liabilities for mistakes and deviations from therequirements, specified under these specifications and documents.

5.5 All manufacturing and fabrication work in connection with theequipment prior to the approval of the drawings shall be at theContractors risk. The Contractor may make any changes in thedesign which are necessary to make the equipment conform to the

provisions and intent of the Contract and such changes will again besubject to approval by the Employer. Approval of Contractorsdrawing or work by the Employer shall not relieve the contractor of

any of his responsibilities and liabilities under the Contract.

5.6 All engineering data submitted by the Contractor after final processincluding review and approval by the Employer shall form part oftheContract Document and the entire works performed underthesespecifications shall be performed in strict conformity, unlessotherwise expressly requested by the Employer in Writing.

5.7 Approval Procedure

The scheduled dates for the submission of the drawings as well as for,any data/information to be furnished by the Employer would bediscussed and finalised at the time of award. The following schedule

shall be followed generally for approval and for providing final

documentation.

i) Approval/comments/ As per agreedby Employer on initial schedulesubmission

ii) Resubmission Within 3 (three) weeks

(whenever from date of commentsrequired) including both ways postaltime).

iii) Approval or comments Within 3 weeks of receiptof resubmission.

iv) Furnishing of distribution 2 weeks from the datecopies in bound volume of final approval

(5 copies per substationand one copy for CorporateCentre)

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v) Furnishing of distributioncopies of test reports

(a) Type test reports 2 weeks from the date

(one copy per of final approvalsubstation plus onecopy for corporatecentre)

(b) Routine Test Reports(one copy for each

substation) -do-

vi) Furnishing of instruction/ As per agreed scheduleoperation manuals (4 copiesper substation and two

copies for corporate centre)

vii) RTFs of drawings (one set -do-per substation and one set forcorporate centre)

(viii) Video Cassette (VHS-PAL)highlighting installation andmaintenance techniques/

requirements of circuit breaker& isolators (one per substationplus one for corporate centre)

(ix) As built drawings & RTFs(Two sets per substation plusone set for corporate centre)

(x) ROM optical disks for all As

built drawings (one per sub-station plus one for corporatecentre)

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7

-do-

On completion of entireworks

-do-

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NOTE:

(1) The contractor may please note that all resubmissions mustincorporate all comments given in the earlier submission by theEmployer or adequate justification for not incorporating thesame must be submitted failing which the submission of

documents is likely to be returned.

(2) The drawings which are required to be referred frequently duringexecution should be submitted on cloth lined paper. The list ofsuch drawings shall be finalised with the Contractor at the time

of Award.

(3) All major drawings should be submitted in Auto Card Version 12or better.

(4) The instruction Manuals shall contain full details of drawings ofall equipment being supplied under this contract, their explodeddiagrams with complete instructions for storage, handling,

erection, commissioning, testing, operation, trouble shooting,servicing and overhauling procedures.

(5) If after the commissioning and initial operation of the substation,the instruction manuals require any modifications/additions/changes, the same shall be incorporated and theupdated final instruction manuals shall be submitted by theContractor to the Employer.

(6) The Contractor shall furnish to the Employer catalogues of spareparts.

6.0 MATERIAL/ WORKMANSHIP

6.1 General Requirement6.1.1 Where the specification does not contain references to workmanship,

equipment, materials and components of the covered equipment, it isessential that the same must be new, of highest grade of the bestquality of their kind, conforming to best engineering practice andsuitable for the purpose for which they are intended.

6.1.2 Incase where the equipment, materials or components are indicated inthe specification as similar to any special standard, the Employer

shall decide upon the question of similarity. When required by thespecification or when required by the Employer the Contractor shall

submit, for approval, all the information concerning the materials orcomponents to be used in manufacture. Machinery, equipment,

materials and components supplied, installed or used without such

approval shall run the risk of subsequent rejection, it beingunderstood that the cost as well as the time delay associated with therejection shall be borne by the Contractor.

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6.1.3 The design of the Works shall be such that installation, futureexpansions, replacements and general maintenance may beundertaken with a minimum of time and expenses. Each componentshall be designed to be consistent with its duty and suitable factors ofsafety, subject to mutual agreements. All joints and fastenings shall

be devised, constructed and documented so that the component partsshall be accurately positioned and restrained to fulfill their requiredfunction. In general, screw threads shall be standard metric threads.

The use of other thread forms will only be permitted when priorapproval has been obtained from the Employer.

6.1.4 Whenever possible, all similar part of the Works shall be made togauge and shall also be made interchangeable with similar parts. Allspare parts shall also be interchangeable and shall be made of thesame materials and workmanship as the corresponding parts of theEquipment supplied under the Specification. Where feasible, commoncomponent units shall be employed in different pieces of equipment inorder to minimize spare parts stocking requirements. All equipment ofthe same type and rating shall be physically and electricallyinterchangeable.

6.1.5 All materials and equipment shall be installed in strict accordance withthe manufacturers recommendation(s). Only first-class work inaccordance with the best modern practices will be accepted.Installation shall be considered as being the erection of equipment atits permanent location. This, unless otherwise specified, shall includeunpacking, cleaning and lifting into position, grouting, levelling,

aligning, coupling of or bolting down to previously installed equipmentbases/foundations, performing the alignment check and finaladjustment prior to initial operation, testing and commissioning inaccordance with the manufacturers tolerances, instructions and the

Specification. All factory assembled rotating machinery shall bechecked for alignment and adjustments made as necessary to re-establish the manufacturers limits suitable guards shall be provided forthe protection of personnel on all exposed rotating and / or movingmachine parts and shall be designed for easy installation and removalfor maintenance purposes. The spare equipment(s) shall be installed atdesignated locations and tested for healthiness.

6.1.6 The Contractor shall apply oil and grease of the proper specification tosuit the machinery, as is necessary for the installation of the

equipment. Lubricants used for installation purposes shall be drained

out and the system flushed through where necessary for applying thelubricant required for operation. The Contractor shall apply alloperational lubricants to the equipment installed by him.

6.1.7 All oil, grease and other used in the Works/ Equipmentshall be purchased in India unless the Contractor has any specialrequirement for the specific application of a type of oil or grease notavailable in India.

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6.1.8 A cast iron or welded steel base plate shall be provided for all rotatingequipment which are to be installed on a concrete base unlessotherwise agreed to by the Employer. Each base plate shall supportthe unit and its drive assembly, shall be of design with pads foranchoring the units, shall have a raised up all around and shall have

threaded in air connections, if so required.

6.1.9 Corona and radio interference voltage test and seismic withstand testprocedures for equipments shall be in line with the procedure given at

Annexure-A and B respectively.6.2 Provisions For Exposure to Hot and Humid climate

Outdoor equipment supplied under the specification shall be suitable forservice and storage under tropical conditions of high temperature, highhumidity, heavy rainfall and environment favourable to the growthof fungi and mildew.

6.2.2 FUNGI STATIC VARNISH

Besides the space heaters, special moisture and fungus resistantvarnish shall be applied on parts which may be subjected or

predisposed to the formation of fungi due to the presence or deposit ofnutrient substances. The varnish shall not be applied to anysurface of part where the treatment will interfere with the operation orperformance of the equipment. Such surfaces or parts shall beprotected against the application of the varnish.

6.2.4 Degree of Protection

The enclosures of the Control Cabinets, Junction boxes andMarshalling Boxes, panels etc. to be installed shall provide degree of

protection as detailed here under:

Installed out door: IP- 55The degree of protection shall be in accordance with IS:13947 (Part-I)

/ IEC-947 (Part-I) / IS 12063 / IEC 529. Type test report for degreeof protection test, on each type of the box shall be submitted forapproval.

6.3 RATING PLATES, NAME PLATES AND LABELS

6.3.1 Each main and auxiliary item of substation is to have permanentlyattached to it in a conspicuous position a rating plate of non-corrosivematerial upon which is to be engraved manufacturers name, year ofmanufacture, equipment name, type or serial number together with

details of the loading conditions under which the item of substation inquestion has been designed to operate, and such diagram plates asmay be required by the Employer. The rating plate of each equipmentshall be according to IEC requirement.

6.3.2 All such nameplates, instruction plates, rating plates of SAshall be bilingual with Hindi inscription first followed byEnglish. Alternatively two separate plates one with Hindi and the

other with English inscriptions may be provided.

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7.0 DESIGN IMPROVEMENTS / COORDINATION

7.1 The bidder shall note that the equipment offered by him in the bidonly shall be accepted for supply. However, the Employer or theContractor may propose changes in the specification of the equipment orquality thereof and if the Employer & contractor agree upon any

such changes, the specification shall be modified accordingly.

7.2 If any such agreed upon change is such that it affects the price andschedule of completion, the parties shall agree in writing as to the

extent of any change in the price and/or schedule of completionbefore the Contractor proceeds with the change. Following suchagreement, the provision thereof, shall be deemed to have beenamended accordingly.

7.3 The Contractor shall be responsible for the selection and design ofappropriate equipments to provide the best co-ordinated performanceof the entire system. The basic design requirements are detailed out

in this Specification. The design of various components,subassemblies and assemblies shall be so done that it facilitates easyfield assembly and maintenance.

7.4 The Contractor has to coordinate designs and terminations with theagencies (if any) who are Consultants/Contractor for the Employer.The names of agencies shall be intimated to the successful bidders.

7.5 The Contractor will be called upon to attend design co-ordinationmeetings with the Engineer, other Contractors and the Consultants ofthe Employer (if any) during the period of Contract. The Contractor

shall attend such meetings at his own cost at New Delhi or at mutuallyagreed venue as and when required and fully cooperate with suchpersons and agencies involved during those discussions.

8.0 QUALITY ASSURANCE PROGRAMME8.1 To ensure that the equipment and services under the scope of this

Contract whether manufactured or performed within the ContractorsWorks or at his Sub-contractors premises or at the Employers site or atany other place of Work are in accordance with the specifications, theContractor shall adopt suitable quality assurance programme to controlsuch activities at all points necessary. Such programme shall be broadlyoutlined by the contractor and finalised after discussions beforethe award of contract. The detailed programme shall be submittedby the contractor after the award of contract and finally accepted by

POWERGRID after discussion. However, in case detailed validprogramme approved by POWERGRID for the equipment already exist,same would be followed till its validity. A quality assuranceprogramme of the contractor shall generally cover the following:

(a) His organization structure for the management andimplementation of the proposed quality assurance programme.

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(b) Documentation control system;

(c) Qualification data for bidders key personnel;

(d) The procedure for purchases of materials, parts components andselection of sub-Contractors services including vendor analysis,source inspection, incoming raw material inspection, verificationof material purchases etc.

(e) System for shop manufacturing and site erection controls

including process controls and fabrication and assembly control;

(f) Control of non-conforming items and system for correctiveactions;

(g) Inspection and test procedure both for manufacture and fieldactivities.

(h) Control of calibration and testing of measuring instruments andfield activities;

(i) System for indication and appraisal of inspection status;

(j) System for quality audits;

(k) System for authorising release of manufactured product to thePurcahser.

(l) System for maintenance of records;

(m) System for handling storage and delivery; and

(n) A quality plan detailing out the specific quality control measuresand procedures adopted for controlling the quality characteristicsrelevant to each item of equipment furnished and/or servicesrendered.

The Employer or his duly authorised representative reserves the right to

carry out quality audit and quality surveillance of the system andprocedure of the Contractor/his vendors quality management and

control activities.

8.2 Quality Assurance Documents

The contractor would be required to submit all the Quality Assurance

Documents as stipulated in the Quality Plan at the time of Employersinspection of equipment/material.

9.0 TYPE TESTING, INSPECTION, TESTING & INSPECTIONCERTIFICATE

9.1 All equipment being supplied shall conform to type tests includingadditional type tests as per technical specification and shall be subjectto routine tests in accordance with requirements stipulated underrespective parts. Employer reserves the right to witness any or allthe type tests. The Contractor shall intimate the Employer thedetailed program about the tests atleast three (3) weeks in advance incase of domestic supplies & six (6) weeks in advance in case offoreign supplies.

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9.2 The reports for all type tests and additional type tests as per technicalspecification shall be furnished by the Contractor alongwith equipment

/ material drawings. The type tests conducted earlier should have

either been conducted in accredited laboratory (accredited based onISO / IEC Guide 25 / 17025 or EN 45001 by the national accredition

body of the country where laboratory is located ) or witnessed by therepresentative(s) of HVPNL or Utility. The test reportssubmitted shall be of the tests conducted within last 5 (five)yearsprior to the date of bid opening. In case the test reports are of

the test conducted earlier than 5 (five) years prior to the date of bidopening, the contractor shall repeat these test(s) at no extra cost to theEmployer.

In the event of any discrepancy in the test reports i.e. any test reportnot acceptable due to any design / manufacturing changes (includingsubstitution of components) or due to non-compliance with therequirement stipulated in the Technical Specification or any/all

additional type tests not carried out, same shall be carried out withoutany additional cost implication to the Employer.

For outdoor clamps, type testing and type test reports are not

required to be submitted for the makes ofPOWERGRID approved listof subvendors. For the new makes (other than those POWERGRIDapproved list of subvendors), type test reports as per relevantstandard shall be submitted for Employers approval.

9.4 The Employer, his duly authorised representative and/or outsideinspection agency acting on behalf of the Employer shall have at all

reasonable times free access to the Contractors/sub-vendorspremises or Works and shall have the power at all reasonable times toinspect and examine the materials and workmanship of the Worksduring its manufacture or erection if part of the Works is being

manufactured or assembled at other premises or works, theContractor shall obtain for the Engineer and for his duly authorisedrepresentative permission to inspect as if the works weremanufactured or assembled on the Contractors own premises orworks. Inspection may be made at any stage of manufacture,

despatch or at site at the option of the Employer and the equipmentif found unsatisfactory due to bad workmanship or quality, material isliable to be rejected.

9.5 The Contractor shall give the Employer /Inspector thirty (30) dayswritten notice of any material being ready for joint testing. Such tests

shall be to the Contractorsaccount except for the expenses of the Inspector. The Employer

/inspector, unless witnessing of the tests is virtually waived, willattend such tests within thirty (30) days of the date of which theequipment is notified as being ready for test/inspection, failing whichthe Contractor may proceed alone with the test which shall bedeemed to have been made in the Inspectors presence and he shallforthwith forward to the Inspector duly certified copies of tests intriplicate.

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9.6 The Employer or Inspector shall, within fifteen (15) days from thedate of inspection as defined herein give notice in writing to theContractor, of any objection to any drawings and all or any equipmentand workmanship which in his opinion is not in accordance with the

Contract. The Contractor shall give due consideration to suchobjections and shall either make the modifications that may benecessary to meet the said objections or shall confirm in writing to

the Employer /Inspector giving reasons therein, that no modificationsare necessary to comply with the Contract.

9.7 When the factory tests have been completed at the Contractors orSub-Contractors works, the Employer/inspector shall issue acertificate to this effect within fifteen (15) days after completion oftests but if the tests are not witnessed by the Employer /Inspector,

the certificate shall be issued within fifteen (15) days of receipt of theContractors Test certificate by the Engineer/Inspector. Failure of theEmployer /Inspector to issue such a certificate shall not prevent theContractor from proceeding with the Works. The completion of thesetests or the issue of the certificate shall not bind the Employer toaccept the equipment should, it, on further tests after erection, be

found not to comply with the Contract. The equipment shall bedispatched to site only after approval of test reports and issuance ofCIP by the Employer .

9.8 In all cases where the Contract provides for tests whether at thepremises or at the works of the Contractor or of any Sub-Contractor,the Contractor except where otherwise specified shall provide free ofcharge such items as labour, materials, electricity, fuel, water, stores,apparatus and instruments as may be reasonably demanded by the

Employer /Inspector or his authorised representative to carry out

effectively such tests of the equipment in accordance with the

Contract and shall give facilities to the Employer /Inspector or to hisauthorised representative to accomplish testing.

9.9 The inspection by Employer and issue of Inspection Certificatethereon shall in no way limit the liabilities and responsibilities of theContractor inrespect of the agreed quality assurance programme forming a part ofthe Contract.

9.10 The Employer will have the right of having at his own expenses anyothertest(s) of reasonable nature carried out at Contractors premises or at

site or in any other place in addition of aforesaid type and routinetests, satisfy that the material comply with the specification.

9.11 The Employer reserves the right for getting any field tests not specifiedin respective parts of the technical specification conducted on thecompletely assembled equipment at site. The testing equipments forthese tests shall be provided by the Employer.

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10. TESTS

10.1 Pre-commissioning Tests

On completion of erection of the equipment and before charging, eachitem of the equipment shall be thoroughly cleaned and then inspected

jointly by the Employer and the Contractor for correctness andcompleteness of installation and acceptability for charging, leading toinitial pre-commissioning tests at Site. The list of pre-commissioning tests tobe performed are given in respective chapters and shall be included in the

Contractors quality assurance programme.

10.2 Commissioning Tests

10.2.1 The testing equipments required for testing and commissioning shall bearranged by the Contractor.

10.2.2 The specific tests requirement on equipment have been brought out in

the respective chapters of the technical specification.

10.2.3 The Contractor shall be responsible for obtaining statutory clearancesfrom the concerned authorities for commissioning the equipment and theswitchyard. However necessary fee shall be reimbursed by HVPNL

on production of requisite documents.

11.0 PACKAGING & PROTECTION

11.1 All the equipments shall be suitably protected, coated, covered or boxedand crated to prevent damage or deterioration during transit, handling

and storage at Site till the time of erection. On request of the Employer,the Contractor shall also submit packing details/associated drawing for

any equipment/material under his scope of supply, to facilitate theEmployer to repack any equipment/material at a later date, in case theneed arises. While packing all the materials, the limitation from the pointof view of availability of Railway wagon sizes in India should be takeninto account. The Contractor shall be responsible for any loss or damageduring transportation, handling and storage due to improper packing. Anydemurrage, wharfage and other such charges claimed by thetransporters, railways etc. shall be to the account of the Contractor.Employer takes no responsibility of the availability of the wagons.

11.2 All coated surfaces shall be protected against abrasion, impact,discolouration and any other damages. All exposed threaded portions

shall be suitably protected with either a metallic or a non-metallicprotecting device. All ends of all valves and pipings and conduitequipment connections shall be properly sealed with suitable devices to

protect them from damage.

12.0 FINISHING OF METAL SURFACES

12.1 All metal surfaces shall be subjected to treatment for anti-corrosionprotection. All ferrous surfaces for external use unless otherwise statedelsewhere in the specification or specifically agreed, shall be hot-dipgalvanized after fabrication. High tensile steel nuts & bolts and springwashers shall be electro galvanized to service condition . All steelconductors including those used for earthing/grounding (above groundlevel) shall also be galvanized according to IS: 2629.

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12.2 HOT DIP GALVANISING

12.2.1 The minimum weight of the zinc coating shall be 610 gm/sq. m andminimum thickness of coating shall be 85 microns for all items thickerthan 6mm. For items lower than 6mm thickness requirement ofcoating thickness shall be as per relevant ASTM. For surface which

shall be embedded in concrete, the zinc coating shall be 610 gm/sq. mminimum.

12.2.2 The galvanized surfaces shall consist of a continuous and uniformthick coating of zinc, firmly adhering to the surface of steel. Thefinished surface shall be clean and smooth and shall be free fromdefects like discoloured patches, bare spots, unevenness of coating,

spelter which is loosely attached to the steel globules, spiky deposits,blistered surface, flaking or peeling off, etc. The presence of any ofthese defects noticed on visual or microscopic inspection shall renderthe material liable to rejection.

12.2.3 After galvanizing. no drilling or welding shall be performed on thegalvanized parts of the equipment excepting that nuts may be

threaded after galvanizing. Sodium dichromate treatment shall beprovided to avoid formation of white rust after hot dip galvanization.

12.2.4 The galvanized steel shall be subjected to six one minute dips incopper sulphate solution as per IS-2633.

12.2.5 Sharp edges with radii less than 2.5 mm shall be able to withstandfour immersions of the Standard Preece test. All other coatings shall

withstand six immersions. The following galvanizing tests shouldessentially be performed as per relevant Indian Standards.

- Coating thickness

- Uniformity of zinc

- Adhesion test

- Mass of zinc coating

12.2.6 Galvanised material must be transported properly to ensure thatgalvanised surfaces are not damaged during transit. Application ofzinc rich paint at site shall not be allowed.

12.3 PAINTING

12.3.1 All sheet steel work shall be degreased, pickled, phosphated in

accordance with the IS-6005 Code of practice for phosphating ironand sheet. All surfaces, which will not be easily accessible after shopassembly, shall beforehand be treated and protected for the life of theequipment. The surfaces, which are to be finished painted afterinstallation or require corrosion protection until installation, shall be

shop painted with at least two coats of primer. Oil, grease, dirt andswaf shall be thoroughly removed by emulsion cleaning. Rust andscale shall be removed by pickling with dilute acid followed bywashing with running water, rinsing with slightly alkaline hot waterand drying.

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12.3.2 After phosphating, thorough rinsing shall be carried out with cleanwater followed by final rinsing with dilute dichromate solution andoven drying. The phosphate coating shall be sealed with application oftwo coats of ready mixed, stoving type zinc chromate primer. The firstcoat may be flash dried while the second coat shall be stoved.

12.3.3 After application of the primer, two coats of finishing synthetic enamelpaint shall be applied, each coat followed by stoving. The second

finishing coat shall be applied after inspection of first coat of painting.

12.3.4 The exterior colour of the paint shall be as per shade no: 697 (foroutdoor) & 692 (for indoor) of IS-5 and inside shall be glossy white forall equipment, marshalling boxes, junction boxes, control cabinets,panels etc. unless specifically mentioned under respective parts ofthe equipments. Each coat of primer and finishing paint shall be of

slightly different shade to enable inspection of the painting. A smallquantity of finishing paint shall be supplied for minor touching uprequired at site after installation of the equipments.

12.3.5 In case the Bidder proposes to follow his own standard surface finishand protection procedures or any other established paintingprocedures, like electrostatic painting etc., the procedure shall besubmitted alongwith the Bids for Employers review & approval.

13.0 HANDLING, STORING AND INSTALLATION

13.1 In accordance with the specific installation instructions as shown onmanufacturers drawings or as directed by the Employer or hisrepresentative, the Contractor shall unload, store, erect, install, wire,test and place into commercial use all the equipment included in the

contract. Equipment shall be installed in a neat, workmanlike manner sothat it is level, plumb, square and properly aligned and oriented.

Commercial use of switchyard equipment means completion of all sitetests specified and energisation at rated voltage.

13.2 Contractor may engage manufacturers Engineers to supervise theunloading, transportation to site, storing, testing and commissioning ofthe various equipment being procured by them separately.Contractor shall unload, transport, store, erect, test and commission

the equipment as per instructions of the manufacturers supervisory

Engineer(s) and shall extend full cooperation to them.

13.3 In case of any doubt/misunderstanding as to the correct interpretationof manufacturers drawings or instructions, necessary clarificationsshall be obtained from the Employer. Contractor shall be held

responsible for any damage to the equipment consequent to notfollowing manufacturers drawings/instructions correctly.

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13.4 Where assemblies are supplied in more than one part, Contractorshall make all necessary mechanical and electrical connections

between parts including the connection between buses. Contractorshall also do necessary adjustments/alignments necessary for properoperation of circuit breakers, isolators and their operating

mechanisms. All components shall be protected against damageduring unloading, transportation, storage, installation, testing and

commissioning. Any equipment damaged due to negligence orcarelessness or otherwise shall be replaced by the Contractor at hisown expense.

13.5 Contractor shall be responsible for examining all the shipment andnotify the Employer immediately of any damage, shortage,discrepancy etc. for the purpose of Employers information only. TheContractor shall submit to the Employer every week a report detailingall the receipts during the weeks. However, the Contractor shall be

solely responsible for any shortages or damages in transit, handling

and/or in storage and erection of the equipment at Site. Anydemurrage, wharfage and other such charges claimed by the

transporters, railways etc. shall be to the account of the Contractor.

13.6 The Contractor shall be fully responsible for the equipment/materialuntil the same is handed over to the Employer in an operatingcondition after commissioning. Contractor shall be responsible for themaintenance of the equipment/material while in storage as well as

after erection until taken over by Employer, as well as protection of

the same against theft, element of nature, corrosion, damages etc.

13.7 Where material / equipment is unloaded by Employer before theContractor arrives at site or even when he is at site, Employer by

right can hand over the same to Contractor and there upon it will bethe responsibility of Contractor to store the material in an orderly andproper manner.

13.8 The Contractor shall be responsible for making suitable indoor storagefacilities, to store all equipment which require indoor storage.

13.9 The words erection and installation used in the specification aresynonymous.

13.10 Exposed live parts shall be placed high enough above ground to meetthe requirements of electrical and other statutory safety codes.

13.11 The design and workmanship shall be in accordance with the bestengineering practices to ensure satisfactory performance throughoutthe service life. If at any stage during the execution of the Contract, itis observed that the erected equipment(s) do not meet the aboveminimum clearances, the Contractor shallimmediately proceed to correct the discrepancy at his risks and cost.

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13.12 Equipment Bases

A cast iron or welded steel base plate shall be provided for all rotatingequipment which is to be installed on a concrete base unless otherwiseagreed to by the Employer. Each base plate shall support the unit and its driveassembly, shall be of a neat design with pads for anchoring the units, shallhave a raised lip all around, and shall have threaded drain connections.

14.00 Tools and TacklesNot Applicable

15.00 Auxiliary SupplyNot Applicable

16.0 SUPPORT STRUCTURE

16.1 Employer has standardized the design of support structure and other

control dimensions as given in standard structural (design) drawings enclosedwith Section-Project. The Bidder shall strictly adhere to these dimensions.The Contractor is required to supply standard structures of variousequipment. Bidder may also refer relevant Clauses of Part (Structure) in thisregard. Any substructure or adopter plate required to meet the above bustermination height other than the standard structure will be supplied by theContractor as part of the equipment. All brackets, angels, stool or othermembers necessary for attaching the operating mechanism to thesupporting structure shall be engineered and supplied by the Contractor. TheSupport structures for all equipments shall be supplied by the Contractor.

16.2 The support structures should be hot dip galvanised with minimum

610 gram/sq.m net of zinc.

16.3 In case of any deviation in this regard the bid is liable to be

considered technically non responsive and shall be liable to be

rejected.

16.4 Support structure shall meet the following mandatory requirements :

16.4.1 The minimum vertical distance from the bottom of the lowest

porcelain part of the bushing, porcelain enclosures or supportinginsulatorsto the bottom of the equipment base, where it rests on the foundation padshall be 2.55 metres.

17.0 CLAMPS AND CONNECTORS INCLUDING TERMINAL

CONNECTORS

17.1 All power clamps and connectors shall conform to IS:5561 & NEMA

CC1 and shall be made of materials listed below :

17.2 Each equipment shall be supplied with the necessary terminals andconnectors, as required by the ultimate design for the particular

installation. The conductor terminations of equipment shall be eitherexpansion, sliding or rigid type suitable for 4" IPS (OD : 114.2 mm,

ID: 97.18 mm) aluminum tube or suitable for Quad BersimisConductor(.The requirement regarding external corona and RIV as specifiedfor any equipment

shall include its terminal fittings and the equipment shall be factorytested with the connectors in position. If corona rings are required tomeet these requirements they shall be considered as part of thatequipment and included in the scope of work.

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17.3 Where copper to aluminum connections are required, bi-metallicclamps shall be used, which shall be properly designed to ensure thatany deterioration of the connection is kept to a minimum andrestricted to parts which are not current carrying or subjected tostress. The design details of the joint shall be furnished to theEmployer by the Contractor.

17.4 Low voltage connectors, grounding connectors and accessories forgrounding all equipment as specified in each particular case, are alsoincluded in the scope of Work.

17.5 No current carrying part of any clamp shall be less than 10 mm thick.All ferrous parts shall be hot dip galvanised. Copper alloy liner ofminimum 2 mm thickness shall be cast integral with aluminum body

for Bi-metallic clamps.

17.6 All casting shall be free from blow holes, surface blisters, cracks andcavities. All sharp edges and corners shall be blurred and rounded off.

17.7 Flexible connectors, braids or laminated straps made for the terminalclamps for bus posts shall be suitable for both expansion or through

(fixed/sliding) type connection of 4" IPS AL. tube as required. In both

the cases the clamp height (top of the mounting pad to centre line ofthe tube) should be same.

17.8 Clamp shall be designed to carry the same current as the conductorand the temperature rise shall be equal or less than that of theconductor at the specified ambient temperature. The rated current forwhich the clamp/connector is designed with respect to the specified

reference ambient temperature, shall also be indelibly marked on eachcomponent of the clamp/connector, except on the hardware.

17.9 All current carrying parts shall be designed and manufactured to haveminimum contact resistance.

17.10 Clamps and connectors shall be designed to be corona controlled.Corona extinction voltage for 400kV class clamps shall not

be less than 320kV (rms) respectively and R.I.V. level shallnot be more than 1000 micro volts at the test voltage specified inrespective Parts.

17.11 Tests

17.11.1 Clamps and connectors should be type tested as per IS:5561 and shallalso be subjected to routine tests as per IS:5561. Following type testreports on three samples of similar type shall be submitted for

approval for which type test once conducted shall be applicable (i.e.the requirement of test conducted within last five years shall not beapplicable).

i) Temperature rise test (maximum temperature rise allowed is35C over 50C ambient)

ii) Short time current test

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iii) Corona (dry) and RIV (dry) test (for 220 KV and above voltagelevel clamps)

iv) Resistance test and tensile test

18.0 Bushings, Hollow Column Insulators, Support Insulators:

18.1 Bushings shall be manufactured and tested in accordance with IS:2099 & IEC: 137 while hollow column insulators shall be manufactured

and tested in accordance with IEC 233/IS 5621. The supportinsulators shall be manufactured and tested as per IS 2544/IEC 168and IEC 273. The insulators shall also conform to IEC 815 asapplicable.

18.2 Support insulators, bushings and hollow column insulators shall bemanufactured from high quality porcelain. Porcelain used shall behomogeneous, free from laminations, cavities and other flaws orimperfections that might affect the mechanical or dielectric quality andshall be thoroughly vitrified tough and impervious to moisture.

18.3 Glazing of the porcelain shall be uniform brown in colour, free fromblisters, burrs and similar other defects.

18.4 Support insulators/bushings/hollow column insulators shall bedesigned to have ample insulation, mechanical strength and rigidityfor the conditions under which they will be used.

18.5 When operating at normal rated voltage there shall be no electricdischarge between the conductors and bushing which would causecorrsion or injury to conductors, insulators or supports by theformation of substances produced by chemical action. No radiointerference shall be caused by the insulators/bushings when operating

at the normal rated voltage.18.6 Bushing porcelain shall be robust and capable of withstanding the

internal pressures likely to occur in service. The design and locationof clamps and the shape and the strength of the porcelain flangesecuring the bushing to the tank shall be such that there is no risk offracture. All portions of the assembled porcelain enclosures andsupports other than gaskets, which may in any way be exposed to theatmosphere shall be composed of completely non hygroscopic materialsuch as metal or glazed porcelain.

18.7 All iron parts shall be hot dip galvanised and all joints shall be air

tight. Surface of joints shall be trued up porcelain parts by grindingand metal parts by machining. Insulator/bushing design shall be suchas to ensure a uniform compressive pressure on the joints.

18.8 Tests

In bushing, hollow column insulators and support insulataors shallconform to type tests and shall be subjected to routine tests inaccordance with IS: 2099 & IS: 2544 & IS : 5621. The type test reportsshall be submitted for approval.

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19.1 TESTING AND COMMISSIONING

An indicative list of tests is given below. Contractor shall perform anyadditional test based on specialties of the items as per the fieldQ.P./Instructions of the equipment Contractor or Employer without anyextra cost to the Employer. The Contractor shall arrange allinstruments required for conducting these tests along withcalibration certificates and shall furnish the list of instruments to the

Employer for approval.(a) Insulation resistance.

(b) Phase sequence and proper direction of rotation.

(c) Any motor operating incorrectly shall be checked to determinethe cause and the conditions corrected.

20.1 Surge Arresters

The manufacturer whose Surge Arresters are offered should havedesigned, manufactured and tested as per IEC/IS or equivalentstandard and supplied the Surge Arrester for the specified energy

capability with rated system voltage and which are in satisfactoryoperation for at least 2 (two) years as on the date of bid opening.

21.1 Operating and maintenance instructions:These instructions shall give sufficient details to enable the employer tomaintain, dismantle, reassemble and adjust all parts of the equipmentand shall contain the following information.

table of content

list of illustration

introduction

the instruction shall contain:- General technical characteristics- a brief general description of the equipment and- a definition of the technical terms used in subsequent pharagraphs ofthe instruction book

22.1 Detail description: This shall contain a complete and accuratedescription of the equipment, its assembly and dismantling, as well ascomponents and accessories. An accurate list stating clearance,tolerances, temperatures, fits, etc. is required.

23.1 Operating principles:A brief summary of the technical operating basis

of the equipment, including diagrams, circuit diagrams and similar ones.24.1 Operating instructions:The instructions shall be accurate and easy to

understand and shall contain the sequence of individual manipulationsrequired for operation of the equipment, table lists and graphicpresentation, should be used as far as possible for making thedescription understood more readily. The operating and maintenanceinstructions shall be written and prepared in English by the Contractor. Alllabels, instructions on equipment shall be written in English by theContractor. The following information for secondary equipment (distancerelays, bus bar and breaker failure relay, differential relay, pilot wiredifferential relay, over current relays etc) shall be given in CD-ROMs in

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1. Operating manuals

2. Maintenance and setting instructions

3. Electrical circuits

4. Soft ware required for local and remote setting, testing, tele metering andgetting information from the relays.

5. Contractor shall give 5 sets of CD-ROM for secondary and primaryequipment.

25.1 Testing and adjustment: The entire testing and adjustment procedure forequipment after overhauls and during operation shall be dealt with Maintenanceinstructions are to be divided in to three parts.

1. Preventive maintenance indicating the inspection required at regular intervals,the inspection procedure, the routine cleaning and lubricating operations, theregular safety check and similar steps.

2. Repair and adjustment, describing the inspections fitting and dismantling ofparts, fault tracing as well as repair and adjustment procedure.

3. Spare parts list, containing all the necessary data for ordering spare part.

26. MONTHLY PROGRESS REPORTS

For the control of the works by the Employer, the Contractor shall prepareddetailed monthly progress reports in following form:

These reports show the progress of material orders and procurement, materialshipments, construction and assembly works included in the contract. It will

also include but not limited to commencement dates, percentage of completion(with regards to the affected payments vs. Total contract amount excludingescalation and to the physical realisation of works) and expected completiondates.

Progress reports shall show manufacture of goods and construction operationsfor each item of work the time work under the contract started to the anticipatedcompletion date, there by indicating the periods during which was previouslyunderway as well as estimated future periods of manufacture and constructionoperations.

Monthly progress reports which are prepared at the end of each calendarmonth by the Contractor shall be submitted to the Employer in three (3) copiesand two (2) of them shall be given to the Employer after approval of theregional department not later than seven (7) days after the close of thereporting period.

The Employer has the right to withhold an amount not exceeding 1000 US$ orequivalent Rs which are calculated by using selling exchange rates of theCentral Bank of India per month from the earnings of the Contractor if propermonthly progress report are not submitted to the Employer in due course

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MONTHLY PROGRESS REPORT

1st pageContractorSub-ContractorContract NoContractors Site Engineering(s) name,

telephone and fax number1. Civil Engineer(s)

2. Electrical Engineer (s)

3. Supervisor(s)

4. Site test engineer(s)

5. Commissioning engineer(s)

Employers Control Engineer(s) name,

Telephone and fax number

1.Civil Engineer:

2.Electrical Engineer

Second and the following pageProject Report No:Month from.......to.....

CHAPTER-I General

CHAPTER-II

a) List of letters submitted by Consortiumb) List of letters send by the Employerc) Photocopies of minutes of meetingd) list of project submitted and stage(indicate revision)CHAPTER-III Work activityDelivery of goods (shipped, arrived to port,

At customs, arrived to side in good condition not)* Supplied by Contractora) Local

b) Civil WorksErection Site test Overall function test

CHAPTER-IV Problem and difficulties confronted with indicating agreements anddisagreementsCHAPTER V Work program expected to be done next monthCHAPTER VI Monetary realization of the project and monthly monetary projection up tocompletion.

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ANNEXURE-A

CORONA AND RADIO INTERFERENCE VOLTAGE (RIV) TEST

1. General

Unless otherwise stipulated, all equipment together with its associatedconnectors, where applicable, shall be tested for external corona bothby observing the voltage level for the extinction of visible corona underfalling power frequency voltage and by measurement of radiointerference voltage (RIV).

2. Test Levels:

The test voltage levels for measurement of external RIV and forcorona extinction voltage are listed under the relevant clauses of the

specification.

3. Test Methods for RIV:

3.1 RIV tests shall be made according to measuring circuit as perInternational Special-Committee on Radio Interference (CISPR)Publication 16-1(1993) Part -1. The measuring circuit shall preferably betuned to frequency with 10% of 0.5 Mhz but other frequencies in therange of 0.5 MHz to 2 MHz may be used, the measuring frequency beingrecorded. The results shall be in microvolts.

3.2 Alternatively, RIV tests shall be in accordance with NEMA standardPublication No. 107-1964, except otherwise noted herein.

3.3 In measurement of, RIV, temporary additional external coronashielding may be provided. In measurements of RIV only standardfittings of identical type supplied with the equipment and a simulationof the connections as used in the actual installation will be permittedin the vicinity within 3.5 meters of terminals.

3.4 Ambient noise shall be measured before and after each series of teststo ensure that there is no variation in ambient noise level. If variationis present, the lowest ambient noise level will form basis for themeasurements. RIV levels shall be measured at increasing and

decreasing voltages of 85%, 100%, 115% and 130% of the specifiedRIV test voltage for all equipment unless otherwise specified. The

specified RIV test voltage for 400 kV is listed in the detailedspecification together with maximum permissible RIV level inmicrovolts.

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3.5 The metering instruments shall be as per CISPR recommendation or

equivalent device so long as it has been used by other testingauthorities.

3.6 The RIV measurement may be made with a noise meter. A calibration

procedure of the frequency to which noise meter shall be tuned shallestablish the ratio of voltage at the high voltage terminal to voltageread by noisel meter.

4. Test Methods for Visible Corona

The purpose of this test is to determine the corona extinction voltageof apparatus, connectors etc. The test shall be carried out in the samemanner as RIV test described above with the exception that RIVmeasurements are not required during test and a search techniqueshall be used near the onset and extinction voltage, when the testvoltage is raised and lowered to determine their precise values. The

test voltage shall be raised to 130% of RIV test voltage andmaintained there for five minutes. In case corona inception does nottake place at 130 %, test shall be stopped, otherwise test shall becontinued and the voltage will then be decreased slowly until allvisible corona disappears. The procedure shall be repeated at least 4times with corona inception and extinction voltage recorded eachtime. The corona extinction voltage for purposes of determiningcompliance with the specification shall be the lowest of the fourvalues at which visible corona (negative or positive polarity)disappears. Photographs with laboratory in complete darkness shall

be taken under test conditions, at all voltage steps i.e. 85%, 100%,115% and 130%. Additional photographs shall be taken at coronainception and extinction voltages. At least two views shall bephotographed in each case using Panchromatic film with an ASAdaylight rating of 400 with an exposure of two minutes at a lensaperture of f/5.6 or equivalent. The photographic process shall besuch that prints are available for inspection and comparison withconditions as determined from direct observation. Photographs shall

be taken from above and below the level of connector so as to showcorona on bushing, insulators and all parts of energised connectors.

The photographs shall be framed such that test object essentially, fills

the frame with no cut-off.4.1 The test shall be recorded on each photograph. Additional photograph

shall be taken from each camera position with lights on to show the

relative position of test object to facilitate precise corona location fromthe photographic evidence.

4.2 In addition to photographs of the test object preferably fourphotographs shall be taken of the complete test assembly showing

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relative positions of all the test equipment and test objects. These fourphotographs shall be taken from four points equally spaced around

the test arrangement to show its features from all sides. Drawings ofthe laboratory and test set up locations shall be provided to indicate

camera positions and angles. The precise location of camera shall be

approved by Employers inspector, after determining the best cameralocations by trial energisation of test object at a voltage which resultsin corona.

4.3 The test to determine the visible corona extinction voltage need notbe carried out simultaneously with test to determine RIV levels.

4.4 However, both test shall be carried out with the same test set up andas little time duration between tests as possible. No modification ontreatment of the sample between tests will be allowed. SimultaneousRIV and visible corona extinction voltage testing may be permitted atthe discretion of Employers inspector if, in his opinion, it will notprejudice other test.

5. Test Records:

In addition to the information previously mentioned and the

requirements specified as per CISPR or NEMA 107-1964 the followingdata shall be included in test report:

a) Background noise before and after test.

b) Detailed procedure of application of test voltage.

c) Measurements of RIV levels expressed in micro volts at each

level.d) Results and observations with regard to location and type of

interference sources detected at each step.

e) Test voltage shall be recorded when measured RIV passesthrough 100 microvolts in each direction.

f) Onset and extinction of visual corona for each of the four testsrequired shall be recorded.

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ANNEXURE - C

LIST OF SPECIFICATIONS

GENERAL STANDARDS AND CODES

Wherever Indian Standards have been mentioned, equivalent IEC or any other

Internationally recognized standard will also be applicable.

India Electricity Rules

Indian Electricity Act

Indian Electricity (Supply) Act

Indian Factories Act

IS-5, -

IS-335, -

IS-617, -

IS-1448 (P1 to P 145) -

IS-2071 (P1 to P3) -

IS-12063 -

IS-2165

P1:1997 -

P2:1983

IS-3043 -

IS-6103 -

IS-6104 -

IS-6262 -

IS-6792 -

IS-5578 -

IS-11353 -

IS-8263 -

Colors for Ready Mixed Paints and Enamels.

New Insulating Oils.

Aluminium and Aluminium Alloy Ingots andCastings for General Engineering Purposes

Methods of Test for Petroleum and its

Products.

Methods of High Voltage Testing.

Classification of degrees of protectionprovided by enclosures of electricalequipment.

Insulation Coordination.

Code of Practice for Earthing

Method of Test for Specific Resistance

(Resistivity) of Electrical Insulating Liquids

Method of Test for Interfacial Tension of Oil

against Water by the Ring Method

Method of test for Power factor & DielectricConstant of Electrical Insulating Liquids.

Method for determination of electric strength

of insulating oils.

Guide for marking of insulated conductors.

Guide for uniform system of marking &

identification of conductors & apparatus

terminals.

Methods for Radio Interference Test on High

voltage Insulators.

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IS-9224 (Part 1,2&4) -

IEC-60060 (Part 1 to P4) -

IEC 60068 -

IEC-60117 -

IEC-60156, -

IEC-60270, -

IEC-60376 -

IEC-60437 -

IEC-60507 -

IEC-60694 -

IEC-60815 -

IEC-60865 (P1 & P2) -

ANSI-C.1/NFPA.70 -

ANSI-C37.90A -

ANSI-C63.21, -

C63.3 -

C36.4ANSI-C68.1 -

ANSI-C76.1/EEE21 -

ANSI-SI-4 -

ANSI-Y32-2/C337.2 -

ANSI-Z55.11 -

NEMA-107T -

NEMA-ICS-II -

Low Voltage Fuses

High Voltage Test Techniques

Environmental Test

Graphical Symbols

Method for the Determination of the ElectricalStrength of Insulation Oils.

Partial Discharge Measurements.

Specification and Acceptance of New Sulphur

Hexafloride

Radio Interference Test on High VoltageInsulators.

Artificial Pollution Tests on High VoltageInsulators to be used on AC Systems.

Common Specification for High Voltage

Switchgear & Controlgear Standards.

Guide for the Selection of Insulators in respect

of Polluted Conditions.

Short Circuit Current - Calculation of effects.

National Electrical Code

Guide for Surge Withstand Capability (SWC)

Tests

Specification for Electromagnetic Noise and Field

Strength Instrumentation 10 KHz to 1GHZ

Techniquest for Dielectric Tests

Standard General Requirements and Test

Procedure for Outdoor Apparatus Bushings.

Specification for Sound Level Metres

Drawing Symbols

Gray Finishes for Industrial Apparatus andEquipment No. 61 Light Gray

Methods of Measurements of RIV of HighVoltage Apparatus

General Standards for Industrial Control andSystems Part ICSI-109

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Clamps & connectors

IS-5561 -

NEMA-CC1 -

NEMA-CC 3 -

Bus hardware and insulators

IS: 2121 -

IS-731 -

IS-2486 (P1 to P4) -

IEC-60120 -

IEC-60137 -

IEC-60168 -

IEC-60233 -

IEC-60273 -

IEC-60305 -

Hexagon headbolts, screws and nuts ofproduct grade C.

Hexagon head bolts, screws and nuts ofproducts grades A and B.

Hexagonal Bolts and Nuts (M42 to M150)

Fasteners: Bolts, screws and studs

Specification and tests for materials

Electric power connectors.

Electric Power connectors for sub station

Connectors for Use between aluminium oraluminum- Copper Overhead Conductors

Fittings for Aluminum and steel cored Al

conductors for overhead power lines.

Porcelain insulators for overhead power lines

with a nominal voltage greater than 1000 V.

Insulator fittings for overhead power lines

with a nominal voltage greater than 1000 V.

Dimensions of Ball and Socket Couplings of

string insulator units.

Insulated bushings for alternating voltagesabove 1000 V.

Tests on indoor and outdoor post insulators ofceramic material or glass for Systems withNominal Voltages Greater than 1000 V.

Tests on Hollow Insulators for use in electricalequipment.

Characteristices of indoor and outdoor postinsulators for systems with nominal voltages

greater than 1000V.

Insulators for overhead lines with nominalvoltage above 1000V-ceramic or glass

insulator units for a.c. systems Characteristicsof String Insulator Units of the cap andpintype.

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IEC-60372 (1984) -

IEC-60383 (P1 and P2) -

IEC-60433 -

IEC-60471 -

ANSI-C29 -

ANSI-C29.1 -

ANSI-C92.2 -

ANSI-C29.8 -

ANSI-G.8 -

CISPR-7B -

ASTM A-153 -

Strain and rigid bus-conductor

IS-2678 -

IS-5082 -

ASTM-B 230-82 -

ASTM-B 231-81 -

ASTM-B 221 -

ASTM-B 236-83 -

Locking devices for ball and socket couplings

of string insulator units : dimensions andtests.

Insulators for overhead lines with a nominalvoltage above 1000 V.

Characteristics of string insulator units of the

long rod type.

Dimensions of Clevis and tongue couplings ofstring insulator units.

Wet process proelain insulators

Test methods for electrical power insulators For

insulators, wet-process porcelain and

toughened glass suspension type

For wet-process porcelain insulatorsapparatus, post-type

Iron and steel hardware

Recommendations of the CISPR, tolerances ofform and of Position, Part 1

Zinc Coating (Hot-Dip) on iron and steelhardware

Dimensions & tolerances for WroughtAluminum and Aluminum Alloys drawn round

tube.

Wrought Aluminum and Aluminum Alloy Bars.Rods, Tubes and Sections for Electrical

purposes.

Aluminum 1350 H19 Wire for electricalpurposes

Concentric - lay - stranded, aluminum 1350conductors

Aluminum - Alloy extruded bar, road, wire,shape

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Galvanizing

IS-209 -

IS-2629 -

IS-2633 -

ASTM-A-123 -

ASTM-A-121-77 -

Zinc Ingot

Recommended Practice for Hot-Dipgalvanizing on iron and steel.

Methods for testing uniformity of coating ofzinc coated articles.

Specification for zinc (Hot Galavanizing)Coatings, on products Fabricated from rolled,pressed and forged steel shapes, plates,bars and strips.

Zinc-coated (Galvanized) steel barbed wire

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Steel structures

IS-228 (1992) - Method of Chemical Analysis of pig iron, cast iron and

plain carbon and low alloy steels.

IS-802 (P1 to 3:) -

IS-806 -

IS-808 -

IS-814 -

IS-816 -

IS-817 -

IS-875 (P1 to P4) -

IS-1161 -

IS-1182 -

IS-1363 (P1 to P3) -

IS-1364 -

IS-1367 (P1 to P18) -

IS-1599 -

IS-1608 -

IS-1893 -

IS-1978 -

IS-2062 -

IS-2595 -

IS-3063 -

-

Code of practice for use of structural steel in

overhead transmission line towers.

Code of practice for use of steel tubes in

ge