technical checklist

8/9/2019 Technical Checklist

1/122

DISTRIBUTION CODE REVIEW PANEL

SULTANATE OF OMAN

TECHNICAL CHECKLISTSFOR

LT, 11KV & 33KV PRODUCTS & MATERIALS

MAY-2012

PRODUCT APPROVAL WORKING GROUP DCRP Note :- If any of the above Is not complied with

the product approval application will not beaccepted.


2/122

PRODUCT APPROVAL WORKING GROUP DCRP Note :-If any of the above Is not complied with.


1

CONTENTS

SL. No. ITEM Page No.:

UPART - I - 33 KV1 ON-LOAD DISCONNECTOR 42 AUTO RECLOSER 9

3 STAY INSULATOR 124 XLPE CABLES 16

5 LINE POST INSULATOR 18

6 3.6, 10 & 20 MVA TRANSFORMERS 21

7 OUT DOOR BREAKER 36

UPART - II - II KV1 ON-LOAD DISCONNECTOR 40

2 DROP OUT FUSE 453 AUTO RECLOSERS 484 INDOOR SWITCHGEAR 51

5 DISTRIBUTION TRANSFORMERS 65

6 RING MAIN UNIT 70

7 XLPE CABLES 748 LINE POST INSULATORS 77

9 STAY INSULATORS 80

UPART - III - LT.1 800/1600 A FEEDERPILLARS 83

2 400 A MINI FEEDER PILLARS 863 400 A CUTOUT BOX 894 CONSUMER UNIT 925 SHACKLE INSULATOR 956 STAY INSULATOR 977 XLPE CABLES 998 XLPE COVERED ALUMINIUM CONDUCTOR 1029 SINGLE PHASE/THREE PHASE KWH METERS 105

UPART IV - GENERAL1 DISC INSULATOR 1082 ACSR CONDUCTORS 1113 TENSION CLAMP 1144 STAY WIRE FOR OVERHEAD LINES 1165 CABLE COVER TILES 1186 WOOD POLES 120


3/122



2

GENERAL REQUIREMENTS

I. ALL PRODUCTS SHALL CONFORM TO THE LATEST OMAN ELECTRICAL STANDARD(OES) FOR THE RESPECTIVE ITEM.

2. ALL PRODUCTS SHALL COMPLY WITH OES-II "GENERAL SPECIFICATION FORELECTRICAL MATERIALS AND EQUIPMENT" IN ADDITION TO THE RESPECTIVEAPPLICABLE STANDARD FOR THE PRODUCT.


4/122



3

PART I

33 KV


5/122



4

33 KV ON-LOAD DISCONNECTOR

Description Requirements

1. Standard to comply with OES - 18

2.Check List to be filled and submittedBy the manufacturer

Check List No, 1

3. Technical Literature to be submitted Technical Details of all components

4. Drawings RequiredComplete Assembly Drawings with alldetails marked

5.Installation and Operation instructionsIf applicable,

Installation and Operation ManualRequired,

6.Sample complying with the standardTo be submitted with the request

Required,

7.Test Certificates required fromIndependent and recognized testing

Laboratory

i) Type Test Certificate is requiredii) Routine Test certificates in accordance

With BS 5253 are required,

8.Installation in the system for accessingThe performance

Not required

9. Documents to be submitted with theApproval request,

i) Check list signed and stomped bv theManufacturer

ii) Technical literatureiii) Installation & Operation manualiv) Drawings

v) Experience List

vi) Test Certificatesvii) Sample


6/122



5

UPRODUCT APPROVAL WORKING GROUP

UCHECK LIST NO.1

U33 KV MAST HEAD ON-LOAD DISCONNECTOR

MANUFACTURER :AGENT :

DATE :

SLNo.

Items Requirement Subgmission Compliance

01Type

Outdoor Mounting on H-TypeWood Pole Structure

02 Conforming To OES - 11 & 18

03 Conforming To BS 5253

04Mounting Heightof the Switch

9000 MM

05 Phase Centers 1200 MM

06 Pole Centers 1800 MM

07Mounting Heightof OperatingHandle

1200 MM

08 AssemblyComponents

Load Interrupter Head. PhaseCoupling Rod. Operating Rod

with well Treated WoodInsulation Inserted at 4500 MMfrom Ground Level. RodGuides. GalvanizedSupportingSteel Work, Bolts. Nuts andWorks.


7/122

PRODUCT APPROVAL WORKING GROUP DCRP Note :-If any of the above Is not complied with. the product approval application will not beaccepted.

6

Note :- If any of the above IS not complied with. the product approval application will not be accepted.

SLNo.

Items Requirement Submission Compliance

09InterrupterHead

Lined with Horn Fiber orHead equivalent for ARCQuenching and ContactsTipped with Copper TungstenARC Extinguishing contactfollower, Large VolumeExhaust Muffler.

10 Off/On Indicator Required

11 Pad Locking Required

12Cree page of

Insulators

1320 MM

13 Sheds of Insulator Aero foil Open Profile

14 Load Breaking 400A at 0.70 pf

15 On-Load Switching 400A at 0.70 pI

16 Off Load Switching 30A at 0 . 15 pf

17 Short Circuit Rating 25KA for 3 Sec.

18 Current Rating 400A

19Galvanizing of ToSteel Parts

To BS 729 Min. Thickness127 Microns.

20 Sample Required

21OperationChecking

Required

22

Test Certificate from

IndependentAuthority

Required

23 Reference List Required

Signature: Seal:


8/122



7


UCHECK LIST NO. lA

U33 KV ON-LOAD DISCONNECTOR - VERTICAL MOUNTING


DATE :

SLNo.


01Type

Outdoor - Vertical Mounting onH-Type Wood Pole Structure

02 Conforming To OES - 18 & 11

03 Standard, BS 5253/ IEC 129

04Mounting Heightof they Switch

7700 MM


06Wood PoleCenters H-TypeConstruction

1800 MM


1200 MM

08 Assembly

Components

Load Interrupter Head, Phase

Coupling Rod, Operating Rodwith Well Treated Wood In solution Inserted at 4500 MM

from Ground Level, Rod IGuides, Supporting Steel Work.Bolts, Nuts and Washers,


9/122


8

Note :- If any of the above Is not complied with, the products approval application will not be accepted,

SLNo.


09InterrupterHead

Lined with Horn Fiber orHead equivalent for ARCQuenching and ContactsTipped with Copper TungstenARC Extinguishing contactfollower, Large VolumeExhaust Muffler.

10 Off/On Indicator To be provided


12Cree page ofInsulators 1320 MM


14 Load Breaking 400A at 0.70 pf

15 On-Load Switching 400A at 0.70 pI

16 Off Load Switching 30A at 0 . 15 pf

17 Short Circuit Rating 25KA for 3 Sec.


19Galvanizing of ToSteel Parts

To BS 729 Min. Thickness 127Microns.

20 Sample Required

21OperationChecking

Required

22Test Certificate fromIndependentAuthority

Required


Signature: Seal:


10/122



9

U

33 KV AUTO RECLOSERS



2. Check List to be filled and submittedBy the manufacturer

Check List No.2

3. Technical literature to be submittedAll details pertaining to material. installationand operation

4. Drawings RequiredGeneral Assembly Drawing Mountingarrangement Drawing Control andProtection Circuit Diagram

5. Installation and Operation instructions

If applicable.Required

6. Sample complying with the standardTo be submitted with the request

Required

7. Test Certificates required fromIndependent and recognized testingLaboratory

i) Sort Circuit Test Certificate is requiredii) Type Testsiii) Functional Test Certificate IS required

8. Installation in the system for accessingThe performance

Required

9. Documents to be submitted with theApproval request.

i) Check list Signed and stamped by theManufacturer

ii) Technical literatureiii) Installation & Operation manual if

applicableiv) Drawingsv) Experience Listvi) Test Certificatesvii) Sample


11/122



10


UCHECK LIST NO.2

U33 KV AUTO RECLOSER


DATE :

SLNo.


01Type

Wood Pole Mounted SF6Insulating Medium and

Vacuum Interrupter02 Service Voltage 33 KV

03Highest SystemVoltage

36 KV

04Normal CurrentRating

400 A

05 Breaking Capacity 6 KA

06 Impulse Withstand 170 KV

07 Short Circuit Tests To IEC 56/BS 5311

08Operating Duty

Up to 4 Clearances inSuccession

09Cree pageOf bushing

1320 MM

10

Power FrequencyWithstand Test:-

- Dry for 60 Sec.- Wet for 60 Sec 70 KV

60 KV

11 33 KV BushingPorcelain or Silicon RubberRequired


12/122

PRODUCT APPROVAL WORKING GROUP DCRP Note :-If any of the above Is not complied with.the product approval application will not beaccepted.

11


Note :-If any of the above IS not complied with, the product approval application will not be accepted.

SLNo.


12 Control

1. Fully Micro-processorControlled and ProgrammableSettings. Controls and Settingsare to be Programmable byhand held device at Local/Site

without PC or LaptopI

2. Type

13 Control Cable 6 Meter Length Required

14 Power Supply forControl

a). Battery Supply 15 V/12 V.10 Ahrs Non rechargeableBattery, replaceable after 10years use or 10000 operationsORb), 230 V A C 50 Hz Supply1), 11.5 KV /230 Voltage TXwith HRC Dropout Fuses on 11,5 KV Side and MCB for LT

Side,2). Emergency Rechargeable12V / 15V, 10Ahrs Battery,Charge and Voltage aremaintained for 48 Hrs in theevent of failure of AC Supply,

Signature: Seal:


13/122

PRODUCT APPROVAL WORKING GROUP DCRP Note :-If any of the above Is not complied with.the product approval application will not beaccepted.

12


Note:- If any of the above Is not complied with. the product approval application will not be accepted.

SLNo.


15 Protection:-- Over CurrentSetting- Over CurrentInstantaneous'- Over CurrentTime Multiplier- Earth FaultCurrent Setting- Earth FaultInstaneous

(Selective)- Earth Fault TimeDelay- Recluse TimeSelectable- Reclaim TimeSelectable- Local Control

25% - 200% in Steps of 25%

4 20

0,1 - 1.5 in Steps of 0,1

10% - 80% In Steps of 10%

4 20

0.2 - 25 Secs,

1 - 60 Secs

1 - 180 Secs

Local Control Operatedmanually with Hook StickComprising.A) Manual CloseB) Close and Lock-InC) Trip and Lock-Out

D) Earth Fault In/Out

16 Mounting Bracket Required

17Painting andFinish

Required

18 Test CertificatefromIndependent

Authority

Required

Signature: Seal:


14/122



13

U

33 KV STAY WIRE INSULATOR




Check List No.3

3. Technical literature to be submittedAll details pertaining to material. installationand operation

4. Drawings RequiredGeneral Assembly Drawings with allDimensions marked


If applicable.Installation Instructions Required.


Required


i) Dry Lightning Impulse Testii) Wet Power Frequency Withstand Testiii) Performance Testiv) Mechanical Failing Load Testv) Porosity Testvi) Galvanizing Test


Not Required

9. Documents to be submitted with theApproval request. i) Check list Signed and stamped by theManufacturer

ii) Technical literature

iii) Installation & Operation manual ifapplicable

iv) Drawingsv) Experience Listvi) Test Certificatesvii) Sample


15/122


14


U

CHECK LIST NO.3

U33 KV STAY WIRE INSULATOR


DATE :

Note ;. If any of the above Is not complied with. the product approval application will not be accepted.

SLNo.


01 MaterialImpregnated Laminated Wood I

or Fiber Polyester Resin

02 Breaking Strength 12000 KG

03 Steel Work To BS 1449

04 GalvanizingTo BS 729. Minimum Thickness127 Microns

05 DimensionsAs per Drawing

No. MEW/OH/015A/0l5C

06Test CertificateFrom IndependentAuthority

Required

07 Sample Required


Signature: Seal:


16/122



15

U

33 KV XLPE CABLES




Check List No.4

3. Technical literature to be submittedAll details pertaining to cablemanufacturing process. technical data tobe submitted.

4. Drawings Required Dimensional Cross Section Drawing


If applicable.N/A


Required


i) High Voltage TestIi) Conductor Resistance TestIii) Galvanizing Test for ArmourIV) Insulation, Bedding and Sheath Testv) Accelerated Treeing Test

8. Installation In the system for accessingThe performance

Not Required

9. Documents to be submitted with the

Approval request.

i) Check list signed and stamped by the

ManufacturerIi) Technical literature

iii) Installation & Operation manual ifapplicable

iv) Drawingsv) Experience Listvi) Test Certificatesvii) Sample


17/122



16


UCHECK LIST NO.4

U

33 KV XLPE CABLES


DATE :

SLNo.


01 Standard IEC 302 and OES - 2


36 KV

03 ConductorCompact Circular as per IEC228 Class - 2

04 Conductor ShieldExtruded Semi-ConductiveLayer

05 Insulation Cross Linked Polyethylene

06 Thickness 9MM

07 Insulation Shield

Extruded Semi-ConductingLayer, Phase Identification -Red, Yellow and Blue, BareCopper Shielding Tape appliedwith a Lap

08

Assembly

Fillers and Bound with NonVulcanizable Tape suitable forConductor Temperature 900DEG,C

09 Sheath Extruded PVC B 6746 - Table-I,Type-9


18/122


17

Note :- If any of the above is not complied with. the product approval application will not be accepted.

SLNo.


10 Thickness of Sheath 2 MM

11 BeddingOver the Sheath BeddingFabric Tape

12Thickness ofBedding

0.6 MM

13 Armour Single Galvanized Steel WiresBS 1442. Aluminium ArmourWires for Single Core Cable

14 Overall ServingExtruded PVC Type-9 TableBS6746

15 Thickness3.0MMFire Retardant, TermiteResistant

16Cross SectionalDrawing of the

Cable

To be submitted

17Test Certificate FromIndependentAuthority

To be Submitted


19 Sample Required

Signature: Seal:


19/122



18

U33 KV LINE POST INSULATOR

1. Standard to comply with OES - 26 - B


Check List NO.6

3. Technical Literature to be submitted Yes

4. Drawings Required areDimensional Drawing with all details ofsheds, top, base etc.

6. Installation and Operation instructionsIf applicable.

N/A


Required.

7. Test Certificates required fromIndependent and Recognized TestingLaboratory

1 . Dry lightning impulse withstand2. Wet power frequency withstand

3. Performance Test

4. Radio Interference Test6. Temperature Cycle Test6. Mechanical Failing load Test

7. Porosity Test8. Galvanizing Test


Not Required


a) Check list signed and stamped by theManufacturer

b) Technical literaturec) Installation & Operation manual if

applicabled) Drawingse) Experience Listf) Test Certificatesg) Sample


20/122



19


UCHECK LIST NO.5

U

33 KV LINE POST INSULATORS


DATE :

SLNo.


01 Type Glazed Porcelain

02Nominal SystemVoltage

33 KV

03System HighestVoltage

36 KV

04Minimum DryImpulse Withstand

250 KV

05Minimum WetPower FrequencyWithstand

135 KV

06MinimumMechanical FailingLoad

11 KN

07MinimumCree page

1320 MM

08

ProfileAerodynamic Open ProfileSheds Top and Side GrovesUniform Sheds

09 Metal Base Malleable Iron


21/122


20

Note :- If any of the above Is not complied with, the product approval application will not be accepted,

SLNo.


10

Fixing Stud :-

- DIA- Length (A)- Length (B)- Thread (A)- Thread (B)

16 MM

- 86MM- 203MM- 71.4 MM- 102MM

11Protection of HotFerrous Parts

Hot DIP Galvanized BS 729Minimum Thickness 127Microns

12 Marking Trade Mark Year FailingLoad

13Test CertificateFrom IndependentAuthority

Required

14Sample PredictedFor Inspection

Required


Signature: Seal:


22/122



21

U3, 6, 10 & 20 MVA POWER TRANSFORMERS



Check List NO.6

3. Technical Literature to be submittedTechnical Details of each sub-assemblyand technical data of each component

4. Drawings Required

1. General layout, elevation, plan and sideview with dimensions marked

2. Rating and diagram plate drawing

3. Cable box drawing4. Drawing of each individual part5. Core assembly7. Foundation drawing


NIA


Not Required


1. SIC Test Certificate required2. Impulse withstand Test Certificate3. Temperature rise Test Certificate4. Routine Test Certificates5. Power frequency High Voltage Test

Certificate Required


Not Required


i) Check list signed and stamped by theManufacturer

ii) Technical literatureiii) Installation & Operation manual ifapplicableiv) Drawingsv) Experience Listvi) Test Certificatesvii) Sample


23/122



22


UCHECK LIST NO.6

U3,6, 10 & 20 MVA 33/11.5 KV TRANSFORMERSU(GENERAL RQUIREMENTS)


DATE :

SLNo.


01 StandardIEC 76BS 171

02

Temp. rise overAmbient of 50 Deg.C:-- 011 by Thermometer-Winding by Resistance

40 Deg. C50 Deg. C

03Maximumcontinuous Rating

3/6/10/20 MVA

04

Duty under faultcondition S.C.Type TestCertificate

Required

05Impulse Level:-- 33 KV

- 11 KV

170 KV75 KV

06HarmonicSuppression (3rdand 5PthP)

Required

07Vibration & NoiseLevel

08Core Quality ofSteel.

Low loss cold rolled grainoriented Electrical SteelLaminations

09Flux Density Not to exceed 16000

Lines/SQ. MM.

10

Power Frequency HighVoltage Level

33 KV - 70 KV

11 KV-50KV


24/122



23

SLNo.


10

Core:-A) Core Plate/

Lamination

InsulationB) Core Clamping

Bolts and PlateInsulation

C) Core LiftingDevice

D) Provision forsupport topreventmovementduring transport

Required

Required

Required

Required

11

Winding:-A) ConductorB) Max. Current

densityC) Type of WindingD) Method of

Bracing andClamping

E) Ability towithstandshockduring handlingand transport

High Conductivity ElectronicCopper not greater than2.6A/SQ.MM.

12 Winding Insulation Class -A

13Ability to withstandlightning surgesand switchingsurges


25/122



24

SLNo.


14

Internal earthling

arrangement forcore clampingSTR., dampingbolts and coilclamping ring

15

Earth Connectorcross sectionalarea

Not less than 400 Sq. M.M.

16 Main Tanks:-A) Lifting

arrangementB) Accessibility to

termination ofwindings andearthing pointwithout

emptying the oiltank

C) Tank withstandpressure when

empty

D) Painting Insidethe tank

E) Jacking lugs - 4Nos.

Required

RequiredA vacuum of 50 CM ofmercury or vacuum requiredfor drying out whichever ISGreater

Required

50 CM above the groundlevel


26/122



25

U3 MVA 33/11.5 KV TRANSFORMERS

U(PARTICULAR RQUIREMENTS)

01 Type OMAN

02 Voltage Ratio 33/11.5 KV

03 Connections Delta/Star

04 Vector Group Dyn 11

05

Tapping:

- Range- Step

Off Load

+ 5"10 to - 10"102.5"10

06 Pad LockingFacilities

Required

07 Impedance6%

08 Termination;- 33 KV Side

Cree page

ClearancePhase to Phase

-11 KV Side

ClearancePhase to PhaseNeutralCree page

Outdoor Bushing

40 MM/KV

700MM

Outdoor Bushing

450MM

Bushing40 MM/KV

SLNo.



27/122


26

Note :-If any of the above is not complied with, the product approval application will not be accepted.

SLNo.


09 Fittings:-- Conservator Tank- Silicagel Breather

- Ammeter 0 - 400Awith Hand Resetmaximumdemandindicator

- Pressure reliefdevice

- Oil Temp.Indicator

- Lifting andJacking Lugs

- ThermometerPocket- Earthing Terminals- Rating andDiagram Plates

- Single PhaseCurrent T ransformer400/5Afitted on 11 KV "Y"Phase for AmmeterService

10 Main TankThickness ofPlates:-

- Top- Bottom- Sides- Radiator

15 MM15MM8MM1.2 MM

Signature: Seal:


28/122



27



SLNo.


01 Type OMAN

02 Voltage Ratio33/11,5 KV



05

Tapping:

- Range- Step

Off Circuit

+ 5% to - 10%2,5%

06Pad LockingFacilities

Required

07 Impedance 6%

08 Termination:

- 33 KV Side

Cree pageClearancePhase to Phase

- 11 KV Side

Clearance 450MMPhase to PhaseNeutral OutdoorBushingCreepage

Outdoor Bushing

40 MM/KV

700MM

Outdoor Bushing

450MM

Outdoor Bushing40 MM/KV


29/122


28


SLNo.


09Fittings:-- Conservator Tank

- Silicagel Breather- Ammeter 0 - 400A

with Hand Resetmaximum demandIndicator

- Pressure reliefdevice

-Oil Temp, RequiredIndicator

- Lifting and RequiredJacking Lugs

- ThermometerPocket- Earthing Terminals- Rating and

Diagram Plates- Single PhaseCurrentTransformer 400/5fitted on 11 KVClass5PlO

Required

Required

Required

Required

Required

Required

RequiredRequired

RequiredRequired

10

Main TankThickness ofPlates:


15 MM15 MM8MM1.2 MM

Signature: Seal:


30/122



29



SLNo.


01 Type OMAN

02 Voltage Ratio33/11,5 KV



05

Tapping:

- Range- Step

On Load

+ 5% to - 15%1.66%

06 Impedance 7.5%

07 Termination:-33 KV Side

ClearanceCreepage

- 11 KV Side

Clearance

Creepage ofBushing

- Neutral

Creepage ofBusing Creepage

- Cable GlandsSuitable forabove cablewith associatedfittings

Cable Box Suitable for 3C x

300 Sqm X LPE Cable- 500 MM Creepage Phase toEarth - 400 MM 805MM

Cable Box - Suitable for I1 C X 500 Sqms X LPE Cable

Phase to Phase - 300 MMPhase to Earth - 170 MM

Creepage of 295MM

Bushing

External Bushing

440MM

Required


31/122



30

SLNo.


08 CurrentTransformer

33 KV Side '-

1st) Separate C.T.Sfor differentialprotection

- Ratio- Class

- VK

2 Double Core

C.T. for OlC.ElF and meteringRatio,

- Class

11 KV Side -

- REF Protection

- Ratio- Class X

- Standby ElF

- Ref Relay- Ratio- Class

200/1X330V

200/1AClass-5PlO for protectionandClass - 1 for metering

600/lA

X

600/lA5P 10

09

Main TankThickness ofPlates:


20 MM20 MM10 MM1.2 MM


32/122


31

Note :- If any of !he above is not complied with, the product approval application will not be accepted.

SLNo.


10Buchholz RelayType and Make

Required

11On-Load TapChanger Type andMake

12MarshallingKIOSK

- Oil Temp. Indicator- Winding Temp. Indicator

- Terminal Blocks and TestLinks

- Local Tap Change Selectorand control SwitchLocal /Remote

13

Tap ChangerControl Panel

-Tap Position IndicatorTap change raise and lowerSpring Load Switches or

- Push Button

Tap change control- Selectors/SwitchRemote I Supervisory

- Tap change Indication I

progress I- Lamp & BuzzerOut of step LampVoltage Regulations relayWith Time DelayOperating Coil

30V DCI 11 OV DC

Signature: Seal:


33/122



32



SLNo. Items Requirement Submission Compliance

01 Type ONAN

02 Voltage Ratio 33/11.5 KV

03 Elect. Connection Delta/Star

04 Vector GroupDyn 11

05

Tapping:

- Range- Step

On Load

+ 5"10 to - 15"101.667"10

06ImpedanceVoltage

12.5%

07 Terminations:- 33 KV Side:-

Cable Box ToBS2562- Clearance:-Phase To PhasePhase to Earth

- Creepage- Drawing

- 11 KV Side:-Cable Box ToBS2562- Clearance:-Phase To PhasePhase to Earth

- Creepage ofBushing

- NeutralBusing Creepage

Suitable for 3C X 300 Sq.M.M.XLPE Cable500MM400MM805MMRequired

Suitable for 6 X 1 C500 Sq. MM. XLPE Cable

300MM170 MM295MM

440MM


34/122


33

Note :- If any of the above is not complied with, the product approval application will not be accepted,

SLNo.


08

CurrentTransformers.Particulars:-33 KV Side:-Separate3 Phase set of CT'sfor diff. Protection- Ratio- Class11 KV Side :-For REF- Ratio- Class2. Stand by E/F &

Meters- Ratio- Class

400/1A

1200/1AX

1200/15P10

09

Main Tank MaterialThickness

- Top

- Bottom

- Sides

- Radiator

20 MM20 MM10 MM1,2 MM

10

Buchholz ProtectionFor Main TX

On-Load Tap Changer

- Type

- MakeBuchholz Protectionfor On - Load,Tap ChangerRequired

Required

11

Tap change MotorsSupply

-ARV Relay

- Type

- Aux, Supply

240VA.C.

30V or 110 D,C.

Signature: Seal:


35/122


34

Note :- If any of the above Is not complied with, the product approval application will not be accepted.

SLNo.


12

Marshalling KIOSK:-

- Location

- Winding Temp.Indicator

- Oil TemperatureIndicator

- Local/RemoteTap changeSelector

Switches

Adjacent or on the Top

13Safety PressureRelease Devicefor Main TX.

Operated By Spring LoadedMechanism Required,

14 Safety PressureRelease Devicefor On- Load Tap

Changer

Diaphragm Rupturing Type-Required

Signature: Seal:


36/122


35

Note:- If any of the above Is not complied with, the product approval application will not be accepted,

SLNo.


15 Tap change 1 Digital Tap Position Indicator

control Panel 2

Tap Change Raise and lower

Spring loaded switches or pushButton

3Tap Changer Control SwitchRemote! /Supervisory

4Tap Change in Progressindication and buzzer

5 Out of Stop Lamp indication

6Voltage Regulating Relay withTime Delay

7Tap Changer ControlAuto/Non-Auto Selector Switch

8 A VR Voltage ReferenceAdjuster

9 VT Fail Alarm

10Supply Voltage of OLTCfailure - Amber Lamp

110-lS KV Voltmeter

12Tap Changer Motor MCB OFFindication (Amber)

13Emergency Stop Push Botton

14Oil Temp. Alarm

15Oil Temp, Trip

16Winding Temp, Alarm

17Winding Temp Trip

18Buchholz Relay Alarm

19 Buchholz Re-lay Trip

20Oil Level Low Alarm

21 Pressure Device Trip

Signature: Seal:


37/122



36

U33 KV OUTDOOR BREAKER



Check List NO.7

3. Technical Literature to be submittedTechnical Details of each assemblyand technical data.

4. Drawings RequiredGeneral Assembly Drawing with allcomponents shown

Foundation Drawing


Installation, Operation and MaintenanceManual


Not Required

7. Test Certificates required from

Independent and recognized testingLaboratory

1 , Type Test Certificate required

2. Temperature Rise Test Certificate required3, Routine Test Certificate required


Not Required



ii) Technical literatureiii) Installation & Operation manual if

applicableiv) Drawingsv) Experience Listvi) Test Certificatesvii) Sample

Note :- If any of the above Is not complied with, the product approval application will not be accepted.


38/122



37


UCHECK LIST NO.7

U

33 KV OUT DOOR BREAKER


DATE :

SLNo.

Items RequirementSubmiss

ionCompliance

01 TypeMetal Clad. Fully SF6 Breaker orVacuum Interrupter With SF6Insulating Medium

02RupturingCapacity

25 KA for 3" Duration

03 Standard BS 5311/IEC 56 I OES - 34

04Degree ofProtection

IP 65

05System NormalVoltage

33 KV


36 KV

07 Normal Current 600A / 1200A Feedes/ BusSection

08 Impulse Level 170 KV

09 Frequency 50 HZ

10

Operating

Mechanism :-- SpringCharged Motor

- Closing CoilVoltage

- Shunt Trip Coil

- Manual ChargingIndictor

- On/Off ControlLocal/Remote

240V 50 CIS

110V or 30V DC

110Vor 30V DCRequired

Required


39/122


38

Note :- If any of the above IS not complied with. the product approval application will not be accepted.

SLNo.


11

11 A

OperatingCubicle ;-

- Weather Proof

- Highest LivePart fromBottom 3.0 MTR

Degree of Protecyion

Required

IP 55.

12CurrentTransformers

Required

13 Labels and Fuses Required

14 Heater Required

15Type TestsCertificate fromIndependent Lab

Required

16

Terminal Bushing

- Type- Creepage

- Clearance -Phase to Phase

Aerofil Open Profile1320 MM

470MM

17 Breaker OperationCounter

Required

18 Terminals Copper

19

MountingStructure ;-- ProtectionagainstCorrosion

Galvanizing Thickness 127Microns

20 Smallurrings

2.5Sqmm Stranded CopperPVC Insulated. Allterminations Filled WithFerrules and circuit number

21 Earthing

Two Earthing Terminal ofBrass or Stainless Steelsuitable for Connecting 10Sqmm Cu.Conductor

Signature: Seal:


40/122



39

PART II

11 KV


41/122



40

U11 KV ON - LOAD DISCONNECTOR

1. Standard to comply with OES 17


Check List NO.21

3. Technical Literature to be submittedAll details pertaining to material, installationand operation

4. Drawings RequiredComplete Assembly Drawings with allDimensions marked


Installation and Operation ManualRequired,


Required


i) Type Test Certificate is requiredIi) Routine Test Certificates in accordance

with BS 5253 are required


Not Required



ii) Technical literatureiii) Installation & Operation manual ifapplicableiv) Drawingsv) Experience Listvi) Test Certificates


42/122



41


UCHECK LIST NO. 21

U11 KV MAST HEAD ON-LOAD DISCONNECTOR


DATE :

SLNo.


ionCompliance

01 Type Outdoor for Mounting on "H"Type Wood Pole Structure

02General RequirementConformingTo

OES - 11

03 Standard BS 5253


9000 MM

05 Phase Centers1050 MM

06 Pole Centers 1800 MM

07Mounting Heightof Operating

Handle

1200 MM

08AssemblyComponents

Load Interrupter Head, PhaseCoupling Rod, Operating Rodwith well Treated WoodInsulator Inserted at 450 MMfrom Ground Level, RodGuides, Galvanized SupportingSteel Work, Bolts, Nuts andWashers


43/122


42


SLNo.


ionCompliance

09Interrupter

Head

Contacts Tipped with CopperHead or Tungsten, Long Life areresistant Horn Fiber Bore Lining

ARC Extinguishing contactfollower, Large Volume ExhaustMuffler,

10 Off/On Indicator Required

11Pad LockingFaculties

Required

12Creepage ofInsulators

440MM


14Load BreakingCapacity

400A at 0,70 pf

15 On-Load Switching 400A at 0 .70 pi

16 Off Load Switching 30A at 0 , 15 pf

17 Short Circuit Rating 25KA for 3 Sec,


19Galvanizing ofSteel Parts

To BS 729 Min, Thickness 127Microns,

20 Sample Required

21 Operation Required

22Test Certificatefrom Independent

Authority

Required


Signature: Seal:


44/122



43


UCHECK LIST NO. 21 A

U

11 KV ON-LOAD DISCONNECTOR - VERTICAL MONTING


DATE :

SLNo.


ionCompliance

01 TypeOutdoor Vertical Mounting on

H-Type Wood Pole Structure

02GeneralRequirementConforming To

OES - 11

03 Standard BS 5253


7700 MM

05 Phase Centres 1050 MM

06Wood PoleCenters H-TypeConstruction

1800 MM


1200 MM

08AssemblyComponents

Load Interrupter Head, PhaseCoupling Rod, Operating Rodwith well Treated Wood InsulationInserted at 4500 MM from. Ground Level, Rod Guides,

Supporting Steel Work, Bolts, ,Nuts and Works.


45/122


44

Note :- If any of the above Is not complied with. the product approval application will not be accepted.

SLNo.


ionCompliance

09Interrupter

Head

Lined with Horn Fiber orequivalent for ARC Quenchingand Contacts Tipped with

Copper Tungsten; ARCExtinguishing contact follower;Large Volume Exhaust Muffler.

10 Off/On Indicator To be Provided


12Creepage ofInsulators

440MM


14 Load Breaking 400 A at 0.70 pf

15 On-Load Switching 400 A at 0.70 pf

16 Off Load Switching 30A at 0 .15 pf

17 Short Circuit Rating 18.4 KA for 3 Secs.


19Galvanizing ofSteel Parts

To BS 729 Min. Thickness 127Microns.

20 Sample Required

21OperationChecking

Required

22 Test Certificatefrom IndependentAuthority

Required


Signature: Seal:


46/122



45

U11 KV DROP OUT FUSE



Check List NO.22


4. Drawings RequiredAreComplete Assembly Drawings detailed

parts Drawing are required


Required,


Required


Type Test Certificate is required


Not Required





47/122



46


UCHECK LIST NO. 22

U11 KV DROP OUT FUSE


DATE :

SLNo.


ionCompliance

01

Rating ;-- Nominal Volt.

- Max. Voltage

- Bill

- Cont. Current

- InterruptingCurrent

- LeakageSymmetrical

Distance ofSupportInsulators

- Characteristics

11 KV12.5 KV95 KVDifferent for Different Rating(KV A) for distributionTransformers4.5 KA440MM

Fast acting (Fuse should Blowfirst for Short Circuit insideTransformer)

02 Construction 1. Single Vent at the bottom ofFuse Tube

2. Screw Cap3. Two Insulation Support4. Base Channel5. Live Parts Cemented to

Insulators

03 Live PartsContact Silver Plated. StainlessSteel Spring

04 Ferrous PartsHot Dip Galvanized minimumthickness of Galvanizing 127Microns


48/122


47


SLNo.


ionCompliance

05

Fuse Tube - Epoxy Fiber Glass Liner withHorn Fiber

- Outer surface protectedwith an Ultra-Violetresistance finish

- Fire retardant

- Lifting ring for handling witha hook stick

06

Arcing Horn- Galvanized Malleable iron

adjustable 4 CM to 8 CM- Clearance 6 CM fromInsulator Shed

07Centre Distancefrom SupportInsulators

394MM


09Test Certificatefrom IndependentAuthority

Required

10 Reference List

Required

11 SampleRequired

12 Operation Check

Required

Signature: Seal:


49/122



48

U11 KV AUTO RECLOSERS



Check List NO.23


4. Drawings RequiredComplete Assembly Drawings MountingDrawing Control Circuit Diagram


Required,


Required


i) Short Circuit Test Certificate is required

ii) Functional Test Certificate is requirediii) High Voltage Power Frequency Test

Certificate Required.iv) Impulse Voltage Test Certificate

Required.


Required


Approval request.


Manufacturerii) Technical literatureiii) Installation & Operation manual ifapplicableiv) Drawingsv) Experience List

vi) Test Certificates from Independent Labvii) Sample (when requested)


50/122


51/122


50


SLNo.


ionCompliance

11

Protection :-

- Over Current Setting

- Over Current TimeMultiplier

- Earth Fault CurrentSetting

- Earth FaultInstantaneous

(Selective)- Earth Fault Time Delay

- Recluse TimeSelectable- Reclaim TimeSelectable

- Local Control

25"10 - 200"10 in Steps of 25"10

0.1 - 1.5 in Steps of 0.1

l 10%

80 - 120 Ms.

0.2 - 25 Secs.

1 To 60 Secs.

1 To 180 Secs.

Local Control Operatedmanually with Hook StickComprising:To be SubmittedA) Manual CloseB) Close and Lock InC) Trip and Lock outD) Auto/Non-Auto

E) Earth Fault in/out

12 Mounting Bracket Required

13 Painting and Finish Required


Required


16Performance overone Load Cycle

Required

Signature: Seal:


52/122



51

U11 KV SWITCHGEAR



Check List NO.24

3. Technical Literature to be submittedTechnical details of all equipment, rating.operation and maintenance

4. Drawings Required are1. General Assembly, Layout of the Panels2. Circuit Diagram of Controls & Protection3. Foundation drawing

5. Installation and Operation instructionsIf applicable. o & Manual required


Not Required


1. Test Certificate of complete SwitchgearPanel is required2. Temperature rise, Feeder Panel,Transformer Panel and Switchgear Panel TestCertificates are required


Not Required


Approval request.


Manufacturerii) Technical literatureiii) Installation & Operation manual ifapplicableiv) Drawingsv) Experience Listvi) Test Certificatesvii) Sample


53/122



52


UCHECK LIST NO. 24

U

11 KV SWITCHGEAR (INDOOR)


DATE :

SLNo.


ionCompliance

01 TypeIndoor Metal Clad

Compartmental

02 Standard BS 5227 / lEC 298

03

Rating:-

- Normal Voltage

- Highest Voltage

- S,S,C, Voltage

- Impulse

11 KV12,5 KV18,4 KA75 KV

04

Current Rating:-For FeederFor TransformerFor Bus SectionFor Bus Bar

400A1200 A

2000 A

05 For Bus BarHard Drawn High ConductivityCopper Bar Silicon RubberInsulated Bus Bar

06 Circuit Breaker ;-

- Type- RupturingCapacity 11 KV

Vacuum350 MVAMotor AC240 VSpring Closing30VDCRequiredRequiredRequiredRequiredRequired


54/122



53

SLNo.


ionCompliance

07 Circuits :-

No. of PanelsStandardArrangement ofS.G. Panels

- Panel No.1and 16

- Panel No.2

- Panel Nos. 3 To

7&l1To15

- Panel No.8and 10 Control

- Panel No.9

16

CapacitorControlStn. Tx. Control

Feeder Control

For 20 MVA Tx. Incomer

Bus Section

08Feeder ControlPanel:-A) One Circuit

BreakerB) Three Current

Transformers(Double Core)

C) One Cable Boxfor 11 KV

D) One CiruitBreaker ControlSwitch Locatedon Front thePanel

E) CB. "Closed"and "Open"Red and GreenIndicationLamps 5 Watts

RequiredRequired

Required

Required


55/122



54

SLNo.


ionCompliance

F) One Local!RemoteSelector Switchon Front ofPanel

G) One HealthyTrip IndicationLamp 5 Watts,30V DC withResistance and

Push ButtonH) Auto Trip Amber

IndicationLamp5W,30VDC

I) Two over Currentand One EarthFault IDMTRelays

J) One AmmeterScaled 0-400

AMPS 400/5AK) Single Shot Auto

Reclose Relay30V DC withTime Delay of

O To 5 MinutesL) Integral EarthingM) One Blank

Circuit Label30CMX8CMMounted on

Front of Paneland a SmallBlank CircuitLabel on Rearof Panel

Required

Required

5W, 30V DC

Required

Required

Required

RequiredRequired


56/122



55

SLNo.


ionCompliance

09Aux.TransformerControl Panel:-

A) One CircuitBreaker 350MVA 3 Phase 11KV. 400 AMPS

B) Three CurrentTransformers

Double core100/50/5A 15VAcapacityClass 1 - meteringClass 5 PlOprotection

C) One Cable Box11 KV 3 CoreCross LinkedPolyethyleneSteel Wire

Armored PVCSheathed -Cable Size 50Sq. MM

D) One CircuitBreaker ControlSwitchMounted onFront of thePanel

E) One Local/RemoteSelector SwitchMounted on

Front of the Panel ,F) One Healthy Trip

IndicationLamp

Required

5w. 30 VDC withResistance and Push Button


57/122



56

SLNo.


ionCompliance

09Aux.TransformerControl Panel:-

A) One CircuitBreaker 350MVA 3 Phase 11KV. 400 AMPS


Double core100/50/5A 15VAcapacityClass 1 - meteringClass 5 PlOprotection

C) One Cable Box11 KV 3 CoreCross LinkedPolyethyleneSteel Wire

Armored PVCSheathed -Cable Size 50Sq. MM

D) One CircuitBreaker ControlSwitchMounted onFront of thePanel

E) One Local/RemoteSelector SwitchMounted on

Front of the Panel ,F) One Healthy Trip

IndicationLamp

Required

5w. 30 VDC withResistance and Push Button


58/122



57

SLNo.


ionCompliance

10 Bus Section Panel:-

A) One C.B.


C) One C.B,Control Switchlocated on frontof the Panel

D) One Local/RemoteSelector SwitchMounted onFront of thePanel

E) C.B, "Closed"and "Open" Redand GreenIndicationLamps

F) One Healthy TripIndication Lamp

G) Auto Trip AmberIndication Lamp

H) One ThreePole over Relay

I) One BlankCircuit Label30CM X8 CMMounted onfront of Panel

and one SmallBlank CircuitLabel on Rear ofPanel

350 MV A 1600 Amps. 3 Phase11 KVRatio 1200/-, 5A 15VA MinimumCapacity

Required

Required

5W, 30V DC

5W, 30 V DC With SeriesResistance and Push Button

5W,30VDC

IDMT 50 To 200%


59/122



58

SLNo.


ionCompliance

11 20MVA 33/11 .5KVIncomerTransformerControl Panel:-

A) One C.B.

B) Three CurrentTXS. Class "X" for

overall biaseddifferential TX.Protection with1200/lAmp.Ratio with CTCharacteristicsto suit theCharacteristics of theCurrent TX. Son33 KV side whichshall have a ratio

of 400/1A

C) Double CoreCurrent Transformers.

One Core forRestricted EarthFault ProtectionRatio 1200/1AMP, Class "X"and to matchwith Line CTS.The other coreFor SBEF protection1200/1 A 5PlO.

D) Three DoubleCore Current TX.

Ratio 12oo/1A15VA Class 5PlOAccuracy forDirectional O/CProtection andOther CoreClass I for Metering

350 MVA . 3 Phase 11 KV1200Amps

Required

Required

Required


60/122



59

SLNo.


ionCompliance

E) One Cable BoxPointingVertically Downwardssuitableto receive sixsingle Core 500SQ, MM, Crosslinked PolyethyleneAluminumStrip Armored

Cablescomplete withCable Lugs,Gland, allnecessaryTerminationMaterialsand Sundries fora completeTermination,

F) One Circuit

Breaker ControlSwitch Locatedon Front of thePanel.

G) One Local /Remote SelectorSwitch on Frontof the Panel.H) Circuit Breaker"Closed" and"Open" Red andGreenIndicationLamps,

I) One Healthy TripIndication LampJ)Auto Trip AmberIndication Lamp

Required

Required

5W 30V DC

5W 30V DC with Seriesresistance and push button30V DC 5W


61/122



60

SLNo.


K) One Pilot WireProtection RelayPanel with 15 KVIsolatingTransformer withInter Trip Guardand Pilot SupervisionEquipmentto Match ExistingSolkar RF Pilot

Wire Protectionat sending endSubstation, TheProtection toOperate from 3Nos,400/1A.33KV CT's Class"X" Provided onthe 33KV Side of20MVA. 33/11.5KV Transformer(in the cases of33 KV CabieFeeder only),

L) One Duo-Biasdifferential Relaywith HarmonicResistant,

M) One HighImpedancerestricted EarthFault Relay

N) One Three

Element Directional O/CRelay with 90

Deg,-45 Deg,connection and45 Deg, MTA - 5To 15% settings)with time delay,

O) One standbyEarth Fault relayIDMT 10 To 40%

Required

Required

Required

Required

Required


62/122



61

SLNo.


ionCompliance

P) One Ammeter

Q) One ThreePhase VoltageTransformer

R) One Voltmeter

S) One VoltmeterSelector SwitchTo ReadVoltagesbetween Phasesand NeutralOne Blank CircuitLabel30CMMounted on Front

of the Panel and aSmall Blank CircuitLabel on Rear ofPanel.

Scaled 0-1200 Amps. SuitableConnection to 1200/1 Amp.C.T's with Selector Switch.Star/Star 11000/\13 110/\13Volts 200VA Per Phase Class "I"Accuracy connected on11 KV incoming supply from20MVA Tx.

Scaled 0-15KV To Operate from

Voltage Transformer.

Required

Required


63/122



62

SLNo.


12 Capacitor ControlPanel:-A) One Circuit

BreakerB) Three Double Ratio

Current Transformers400/5A 15VA Min.Capacity. Accuracy Class5P 10 for over Current andEarth Fault Protection and

Class 1 for Metering.C) One Cable

compartmentfor 11 KV 3C 240SQ, MM XLPEIPVC/SWA/PVC

D) One CircuitBreaker ControlSwitch Locatedon Front of thePanel

E) Circuit Breaker"Close" and"Open" Red andGreenIndicationLamps.

F) One Local/Remote SelectorSwitch on Frontof Panel

G) One Healthy TripIndication Lamp

H) Auto Trip AmberIndication Lamp

I) Two Over Currentand One EarthFault IDMT Relays

J) One AmmeterScaled0-400Amps withSelect or Switch

350 MV A 3 Phase 11 KV400 A

Required

Required

Required

5W30VDC

5W 3V DC with Series

Resistanceand Push Button5W30VDC

Required

Required


64/122


65/122


64

Note ;- If any of the above is not complied with, the product approval application will not be accepted,

SLNo.


F) Metal Instrumentand Relay casesconnected toEarth Bar by 2,5Sq, MM, CopperWire

G) Heaters of eachPanel CAC 240V)

H) Instruments:-Voltmeter and Ammeter.

I) Auxiliary Switchfor DC Supply

J) Spare Way Aux,SwitchK) Indication Lamp

L) Local/Remote, Select, SW,M) Test TerminalBlocksN) Remote Alarm

Required

Required

Dial TypeType: Flush Mounting

Moving IronDeflection: 270Size 96 x 96

MCB2 N,C, & 2 N,O, MCB5 W 30V DC

RequiredRequiredRequired

15

AdditionalEquipment:-Testing PlugsTool CabinetKey CupboardPermit To workLocking offBoxes

16 Test Certificatefrom IndependentAuthority

Required

Signature: Seal:


66/122



65

U11 KV /433 V DISTRIBUTION TRANSFORMERS



Check List NO.25



1. General Assembly,2. Cable Box Drawing3. Terminal Bushing Drawing

4. Core and Winding Assembly Drawing5. Foundation Drawing


Installation and Operation Manual Required


Sample is required after approval of theDrawing (l No. 315KVA. and 1 No. 1000 KVA


i) SIC Test Certificate is required

ii) Impulse Withstand Test Certificates isrequirediii) Temperature Rise Test Certificate is

Requirediv) High Voltage Power Frequency Test

Certificate is Required


Not Required


Approval request.




67/122



66


UCHECK LIST NO. 25

U11 KV /433 DISTRIBUTION TRANSFORMERS


DATE :

SLNo.


01 Standard OES-5

02Rating underOman Condition

100/200/315/500/1 000 KVA

03 Voltage Ratio 11000/433V

04

Temperature Rise:-

- Oil

- Winding40 Deg. C50 Deg. C

05Off-CircuitTapping LockingFacilities

+ 5% To - 5%In Steps of 2.5%

06 Vector Group DYN 11

07 Impedance 4.75%


12.5 KV

09 Winding InsulationClass - ABS 2751

10Tank MinimumThicknessBottomSidesTopRadiator/Fins

5MM4MM5MM1.2 MM


68/122



67

SLNo.


11 TerminalArrangement1 ) Pole Mounted

TransformerOutdoorBushingCreepageInsulator ShedClearancesPhase toPhaseHVLVTerminalsSuitable for

2) Ground

MountedTransformerCable BoxPhase ToPhaseHVLVPhase to EarthHVBushingTerminalSuitable for

Cable Size

LV

440MM

Aerofoil Open Profile

270 MM150 MM50 SQ. M. M Copperconductfor HV Side4C X 185 SQ. M. M For100 & 200 KVA TXTwo 4C X 185 SQ. MM For315 KV A. TX on LV Side

180 MM120 MMHV 100 MM4C X 50 SQ. M. M Side630 SQ. MM2 Single Core/Phase +Neutralfor 1000 KV A. TX. One

SingleCore 630 Sqmm / Phase +NeutralFor 500 KV A TX


69/122



68

SLNo.


12Length of Pole MountedTransformer

< 1400 MM

13Two EarthingTerminals

Required

14

Fittings:-1) Conservator

Vessel

Complete withFilling Cap andDrain Valve

2) Lifting Lugs3) Oil Level Gauge4) Main Tank Drain

Valve5) Conservator To Main

Tank Valve6) Dial Type

Thermometer

with MaximumReading Pointer

7) ThermometerPocket

8) Rating Diagram Plates9) Silicagel

BreatherContainerVandal Proofand Tansparen

Required

RequiredRequiredRequired

Required

Required

Required

Required

Required

15 Gaskets Cork or Similar Material as

BaseBonded by Oil ResistanceSynthetic Material or RubberinOne Piece


70/122

PRODUCT APPROVAL WORKING GROUP MEW Note :-If any of the above Is not complied with.the product approval application will not beaccepted.

69


SLNo.


16

Mounting of SilicagelBreatherin the PoleMountedTransformer

20 CM from the Bottom

17Insulation of Endconnection ofWinding

Required

18Earthing of Core

Required

19 Clamping Bracketfor Core

To be Provided

20Clamping CoreBolt Insulation

To be Provided

21Insulation Barnerbetween Windings

To be Provided

22 Sample Required


Required


25PerformanceChecking throughLoad Cycle

Required

Signature: Seal:


71/122



70

U11 KV RING MAIN UNIT



Check List NO.26



1. General Assembly Drawing2. Control and Protection Circuit

Drawing3. Fuse Assembly Drawing4. Foundation Drawing


Installation and Operation Manual Required


Sample is required after approval of theDrawing


i) SIC Test Certificate requirediI) Impulse Withstand Test Certificatesiii) Power Frequency Withstand Test

Certificate required


Required after approval of sample


Approval request.




72/122



71


UCHECK LIST NO. 26

U11 KV RING MAIN UNIT


DATE :

SLNo.


01GeneralRequirements

OES - 11

02 AssemblyTwo 3 Phase Ring MainSwitches 400 A and One 3Phase Tee off Switch 150 A

03

Switches & FuseAssy. Oil Immersedor SF6 Gas Insulationand CurrentInterruption witheither H RC Fuses

in Air or SF6 CircuitBreaker

Required

04 Metal Clad


IP 54

06 Extensible

07

Switches/Co B.Position

- On- Off/Earth off

- Earth


09 Rated Voltage 11 KV

10 Highest SystemVoltage

12.5 KV


73/122



72

SLNo.


11 Impulse WithstandVoltage

75 KV

12Power FrequencyTest

27 KV

13

Rated NormalCurrent (SiteRating)

- Ring MainSwitch

- Tee off Switch/Circuit Breaker

400A

150 A

14Fusing Rating of Teeoff Switch Fuse

63A

15Tee off Circuit Trans-former Rating

1000 KVA

16Rated BreakingCurrent of RingMain Switch

400A

17Foul Rating (Lineand Earth Switch

350 MV A at 11 KV

18 Rated Short TimeCurrent for 3 Secs.

-All Switchesincluding Ring

Main EarthSwitches

- Tee off EarthSwitch

18.4 KA

2 KA


74/122


73

Note :- If any of the above Is not complied with. the product approval application will not be accepted.

SLNo.


19 Operating andInterlocks As per OES 19

20SF6 Switchgear:-Pressure GaugeGas Leak

Less than 1% per Annum

21

Cable Boxes

Ring Main Circuit

T-Off Circuit

Suitable for Dry TypeTermination

3C X 185 To 300 SQ. MMXLPE Cable

3C X 50 Sq. MM. XLPE Cble

22 Test Plugs To be Approved

23

Earth Fault Indicator

together with theRelative CoreBalance CurrentTransformer

24 Sample Required

25Test Certificate fromIndependentAuthority

Required


Signature: Seal:


75/122



74

U11 KV CABLES



Check List NO.27

3. Technical Literature to be submittedAll details pertaining to cablemanufacturing process and technical datato be submitted.

4. Drawings Required Dimensional Cross Section Drawing


N/A


Required.


i) High Voltage TestiI) Conductor Resistance Testiii) Galvanizing Test for Amouriv) Insulation, Bedding and Sheath Testv) Accelerated Treeing Test


Required after approval of sample





76/122



75


UCHECK LIST NO. 27

U11 KV CABLES


DATE :

SLNo.


01 Standard IEC 502


12.5 KV

03 ConductorCompact Circular IEC 228Class - 2

04 Conductor Shield

Extruded Semi Conductivity

Layer

05InsulationThickness

Cross Linked Polyethylene3.4MM

06 Insulation Shield

Extruded Semi ConductivityLayer. Phase Identification - ABare Copper Shielding TapeApplied with Tape

07 Assembly

Non Hygroscopic Filler bound

with Non Vulcanisable TapeTemp. 90 Deg. C.

08 Sheath ThicknessExtruded PVC BS 6746 Table-lType-9.2mm

09Bedding

Thickness

Over the Sheath Bedding FabricTape0.5mm


77/122


76


SLNo.


10 ArmourSingle Galvanized Steel WiresBS 1442. Aluminum Armour forSingle Core Cable

Overall Serving

Thickness

Extruded PVC Type-9Table - 1 BS 6762,8 MM

Fire Retardant Termite

Resistant

Cross SectionalDrawing of theCable

To be submitted

Test Certificatefrom IndependentAuthority

Required

Reference List

Sample

Required

Required

Signature: Seal:


78/122



77

U11 KV LINE POST INSULATOR

1. Standard to comply with OES - 26-C


Check List No. 28


4. Drawings Required are

Dimensional Drawings with all details of

Sheds, top, base etc.


N/A


Required.


1) Dry Lighting Impulse Withstand

2,) We Power Frequency Withstand3) Performance Test4) Radio Interference Test5) Temperature Cycle Test6) Mechanical Failing Load Test7) Porosity Test8) Galvanizing Test


Not Required


Approval request.




79/122



78


UCHECK LIST NO. 28

U

11 KV LINE POST INSULATOR


DATE :

SLNo.


01 Type Glazed Porcelain

02Nominal SystemVoltage

11 KV


12.5 KV

04

Minimu DryImpulse withstand(Peak)

110 KV

05Minimum WetPower FrequencyWithstand

50 KV

06MechanicalFailing Load 11 KV

07 Creepage 440MM

08 Profile

Aero Dynamic Open ProfileSheds Top and Side GrovesUniformSheds

09 Metal Base Malleable, lron


80/122


79

Note:- If any of the above Is not complied with, the product approval application will not be accepted.

SLNo.


10

Fixing Stud:-

- Length CA)

- Length CB)

- Thread CA)

- Thread CB)

54MM191 MM39.7 MM102 MM

11Protection ofFerrous Parts

Hot Dip Galvanized BS 729Ferrous Thickness 127 Microns

12 Marking Trade Mark !Year /Failing Load


Required

14Sample ProducedFor Inspection

Required


dddd

Signature: Seal:


81/122



80

U11 KV STAY INSULATOR

1. Standard to comply with OES - 26-D


Check List No. 29


4. Drawings Required are Dimensional Drawings with all details ofSheds, top, base etc.


N/A


Required.


1) Dry Lighting Impulse Withstand2,) We Power Frequency Withstand3) Performance Test4) Radio Interference Test5) Temperature Cycle Test6) Mechanical Failing Load Test7) Porosity Test8) Galvanizing Test


Not Required


Approval request.




82/122


81


UCHECK LIST NO. 29

U

11 KV STAY INSULATORMANUFACTURER :AGENT :

DATE :


SLNo.


01 Standard BS 137

02 Material Glazed Porcelain

03

Performance Requirement:-- Nominal

System Voltage

- System HighestVoltage

- 50 Cycles DryFlashover

- 50 Cycles WetFlashover

- Leakage Distance

- Tensile Strength

11 KV

12.5 KV

40 KV

22 KV

80MM90 KN

04 AppearanceSmoothly Glazed Free fromDefects and Blemishes

05 Co lour Brown/Chocolate

06 Marking:-- Manufacturer's Name- Year of Manufacture- Mechanical Failing Load


Required

08 Sample Required


Signature: Seal:


83/122



82

PART 111

L.T.


84/122



83

U800 A/1600 A FEEDER PILLARS



Check List No. 41

3. Technical Literature to be submittedAll Details Pertaining to Material.Installation and Operation

4. Drawings Required1. General Arrangement Drawing2. Foundation Drawing


N/A


Sample is Required after Approval ofDrawing


SIC Test Certificate


Not Required





85/122



84


UCHECK LIST NO. 41

U800/1600 A FEEDER PILLARS


DATE :

SLNo.


01 Test Certificate

02Short Circuit Test:-- 46 KA for 0,3 Sec,

03 DoorsDouble Leaf Opening 180Deg,


IP 55

05 Thickness of Sheet 2MM

06 Danger Plate Enameled Arabic/English

07Door OperatedInternal Light and13 A Socket Outlet

Required

08 Lifting Lugs Required

09 Earthing TerminalsRequired

10

A) Incoming UnitRating

B) 3 C.T,'s

C) Max, DemandIndicators

D) 1 KWH MeterThree PotentialCircuit Fuses

E) Terminals forSingle Core 630Sq, MM, XLPE Aluminum

F) Spacing between theTermination andBottom Plate

80011600 A Site Rating800/5 or1600/5 Class -1 MouldedType

400MM


86/122


85


SLNo.


11

Outgoing Ways No.of Bays 6/8:-

- Glands withEarth Tap andPlastic Shroud

- Clearance- Fuse Grip

Handle

- Phase Barriers- Spacing

Termination

and BottomPlate

45MM

Flame and arc resistance

450MM

12

Bus Bars:-A) PhaseB) NeutralC) Earth Bar

50 X 10/100 X 10 MM

50X5/50X l0 MM25 X 5/50 X 5 MM

13 Painting Five Year Guarantee

14 Pad Locking andHandle

To be Provided

Signature: Seal:


87/122



86

U400 A MINI FEEDER PILLAR



Check List No. 42

3. Technical Literature to be submitted Technical Details of all Components

4. Drawings Required1. General Arrangement Drawing2. Foundation Drawing


N/A


Required.


SIC Test Certificate


Not Required





88/122



87


UCHECK LIST NO. 42

U400 A 6 WAY MINI FEEDER PILLAR


DATE :

SLNo.


01 Test Certificate Independent Authority

02S.c. Test 46 KV for0.3 Sec.

46 KV for 0.3 Sec.

03 DoorsSingle Door 180 Deg.Opening


IP 55

05 Thickness of Sheet 2MM

06 Danger PlateArabic and EnglishEnameled

07Door OperatedInternal Light

Required

08 Lifting LugsRemovable Lifting DeviceRequired

09 Earthing Terminals12 MM" 2 Nos.

10 Name Plate Engraved Name Plate :-1) SI. No.2) Year3) Normal CT Rating of Bus

Bar 925 X 10 MM)4) Normal CT Rating of

Incoming Unit (400 A)5) Cross Weight6) Manufacturer's Name and

Ref. No.


89/122

PRODUCT APPROVAL WORKING GROUP DCRP Note :-If any of the above Is not complied with. the product approval appl