- SCHEDULES OF TECHNICAL SPECIFICATION
220kVXLPEINSULATEDCABLESYSTEM / UNIT / DATA
Required / Offered
1.0General
1.1Nameofmanufacturer
1.2Locationof manufacturingsite
1.3ManufacturersQualityCertification
-Certifiedby(CompanyName)
-Certificationvalidtill(year)
1.4Circuitratingrequired
1.5Generaldescriptionofcable
-numberofcores
-systemvoltage
- conductorsize
-InsulationType
-metalsheathtype
-oversheathtype
1.6Yearoffirstcommercialoperationofcabletype
2.0InsulationCoordination
2.1Highestsystemvoltage(Um) (insulationclass)
2.2Nominalvoltagebetweenconductors(U)
2.3Ratedfrequency
2.4Nominalvoltagebetweenconductorandsheath(Uo)
2.5Ratedimpulsewithstandvoltage(Up)(ataltitude<1000m)
2.6Ratedshortdurationpowerfrequencywithstandvoltage(at altitude<1000m)
3.0Ratings
3.1Maximumcontinuousdirect-buriedcurrentrating,assuming,
-MaximumSoilthermalresistivityof2.7K.m/W
-Touchingtrefoilconfiguration
-Specialbondingof metalsheaths
For,
GuaranteedCurrentRating(SingleCircuitinTrench) GuaranteedCurrentRating(DoubleCircuit inone Trench, distancebetweenmiddlephases,s=1500mm) CalculationMethod / MVA
kV
mm2
kV kVHz kV kVkV
A A / ISO9000
200
1
220
XLPE Lead HDPE
245
220
50
130
1050
460
IEC60287
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220kVXLPEINSULATEDCABLESYSTEM / UNIT / DATARequired / Offered
3.2Maximumcontinuousdirect-buriedcurrentrating,assuming,
-MaximumSoilthermalresistivityof2.7K.m/W
-Flatformationconfiguration
-Specialbondingof metalsheaths
For,
GuaranteedCurrentRating(SingleCircuitinTrench) GuaranteedCurrentRating(DoubleCircuitinoneTrench, distancebetweenmiddlephases,s=1500mm) CalculationMethod
3.3Maximumcontinuousin-aircurrentrating,assuming,
-Airtemperature(inshade)of35oC
-Specialbondingof metalsheaths
-Flatspacedconfiguration,phasespacingof250mm
-Thermallyindependentofothercablecircuits
For,
GuaranteedCurrentRating(singlecircuit) CalculationMethod
3.4Maximum permissible core temperature for continuous operation
3.5Shortcircuitcapacityfor1sec
-Shortcircuitcurrent
-Permissible maximumsheathtemperature
-Permissible maximumconductortemperature
3.6Permissibleemergencyoverload
3.6.1Appliedon100%continuousload
-Emergencycurrentrating
-Maximumemergencytemperature
-Allowableduration/operation
-Allowabletotalduration/annum
-Maximumaverageduration/annumontotallifeofcable
3.6.2Appliedon50%continuousload
-Emergencycurrentrating
-Maximumemergencytemperature
-Allowableduration/operation
-Allowabletotalduration/annum
-Maximumaverageduration/annumontotallifeofcable
3.6.3Appliedon20%continuousload
-Emergencecurrentrating
-Maximumemergencytemperature
-Allowableduration/operation
-Allowabletotalduration/annum
-Maximumaverageduration/annumontotallifeofcable
4.0ConstructionFeatures
4.1Conductor
-Material
-Nominalcross-section
-Shapeandtype ofconductor
-Overalldiameter
-Waterblockingmethod / A A
A
oC
kA oC oC
AoC hours
hours hours
A
°C hours hourshours
A
°C hours hourshours
mm2
mm / IEC60287
90
200
250
Cu/Al,
Tape/yarn
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220kVXLPEINSULATEDCABLESYSTEM / UNIT / DATARequired / Offered
-Semiconductingbindertape
4.2Conductorscreen
-Typeofmaterial
-Nominalthickness
-Minimumthickness
-Nominaloveralldiameter
-CompoundIdentificationReference
4.3Insulation
-Material
-Nominalthickness
-Minimumthickness
-Nominaloveralldiameter
-Maximumcontinuousoperatingtemperature
-CompoundIdentificationReference
Maximumstressatnominalvoltage
-Atconductorscreen
-Atinsulationscreen
Maximumstressatimpulsevoltage
-Atconductorscreen
-At insulationscreen
4.4Insulationscreen
-Typeofmaterial
-Nominalthickness
-Nominaloveralldiameter
-CompoundIdentificationReference
-Indelibleinkmarkingonscreen
4.5XLPEManufacturingMethods
-Extrusionline type e.g.CCV,MDCV,VCV
-Singlepass,tripleextrusion
-Curingmethod
-Coolingmethod
-DegassingPeriod
4.6Beddingfor moistureabsorption
-Typeandmaterial
-Nominalthickness
-Minimumthickness
-Nominaloveralldiameteroverbedding
4.7Metallicscreen
-Typeandmaterial
-Nominalthickness
-Minimumthickness
-Wirediameter
-Nominaldiameteroverthescreen
-Crosssectionalareaofscreen
-Shorttime currentdensity(1sec)
4.8Bedding/Bindertape
-Typeandmaterial
-Nominalthickness / mm mmmm
mm mmmm
oC
kV/mm kV/mm
kV/mm kV/mm
mm mm
days
mm mmmm
mm mm No. mm mm2
kA/mm2
mm / yes
Fullybonded semicon.XLPE
yes
XLPE
90 yes
Fullybonded semicon.XLPE
yes
yes Dry Dry
Copperwire
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220kVXLPEINSULATEDCABLESYSTEM / UNIT / DATARequired / Offered
-Minimumthickness
-Nominaloveralldiameteroverbedding
4.9Metallicsheath
-Typeandmaterial
-Nominalthickness
-Minimumthickness
-Nominaldiameteroverthesheath
-Crosssectionalareaofsheath
-Shorttime currentdensity(1sec.)
4.10Protectiveanti-corrosionexternalsheathcovering
-Bitumenundercoatlayer
-Typeandmaterial
-Colour
-Nominalthickness
-Minimumthickness
-Termiteresistant
-Typeofanti-termiteprotection
-Thermalresistivity
-Typeoffireprotectionforclosingsection
4.11Typeofconductiveouterlayer
4.12Nominaloverallcablediameter
4.13Weightofcompletedcable
-Copper
-Insulation
-Lead-Alloy
-GrossWeight
5.0Losses
5.1 Maximumdielectriclosspermetre/phasewhenoperatingat nominalvoltage andfrequencyandat maximumconductor temperature
5.2 Maximumsheathlosspermetre/phasewhenoperatingat nominalvoltageandfrequencyandatcurrent ratingstipulated in Item3 withsheathbondedandearthedasrecommended (sectionalizingcrossbonding)
5.3 Maximumconductorlosspermetre/phasewhenoperatingat nominalvoltageandfrequencyandatcurrent ratingstipulated inItem3.
5.4Totallossofcableper metre/phase ofthreephasecircuit
6.0ElectricalValues
6.1Maximumd.c.resistanceofconductorat20oC / mm mm
mm mmmmmm2
kA/mm2
mm mmyes/no
K.m/W
mm kg/m
kg/m kg/m kg/m
W/m
W/m
W/m
W/m
1-Q/m / Lead-alloy1/2C
HDPE Black
Yes specify Max6.0
Graphite/or semicon. polymer
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220kVXLPEINSULATEDCABLESYSTEM / UNIT / DATARequired / Offered
6.2 Maximum a.c. resistance of conductor at operating temperature
6.3Equivalentreactanceofthreephasecircuitat50Hz
6.4 Electrostaticcapacitanceperconductorofcable atnominal voltageandoperatingtemperature
6.5Maximumchargingcurrentperconductoratnominalvoltage
6.6Chargingcapacityofthree phasesystem(atUo)
6.7 Maximumdielectriclossfactorof cableat normalvoltageand frequencyataconductortemperatureof:
-20oC
-90oC
6.8PositiveNegativesequenceimpedance
6.9Zerosequenceimpedance(asinstalledconditions)
-Resistance
-Reactance
-Capacitance
6.10Surgeimpedance
7.0BondingEarthing
7.1Typeofspecialbonding
7.2 Maximumsheathpotentialofcompletedcablewith conductor atratedcurrentwithsheathbondedand earthedas recommended
7.3 Maximumsheathpotentialofcompletedcablewith conductor at maximumearthfaultcurrentof31.5 kAwithsheath bonded andearthedasrecommended
7.4SVLRating
8.0Testing
8.1RoutineTests
-AsperIEC62067
-AdditionaltestsspecifiedinKETRACOspec.
8.2SampleTests
-5Uofor1 hour(asperKETRACOspec.)
8.3Type Tests
-TestRegime
-LocationofTest
-DateofTest
-Nameofindependentwitness
8.4PrequalificationTest
-TestRegime
-Datecompleted
-LocationofTest
-Nameofindependentwitness
8.5CommissioningTests
-ACvoltagewithstandtest / 1-Q/m
1-Q/m pF/m
mA/m
VAr/m
Q/m
Q/m Q/m pF/m
Q
V/m
V/m / Min.6kV
Yes yes
yes
IEC62067
1.7Uofor1hour
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220kVXLPEINSULATEDCABLESYSTEM / UNIT / DATARequired / Offered
-Partialdischargemonitoring
-OversheathDCvoltagetest
9.0OtherInstallationData
9.1Minimumcablebendingradiuswhenlaid:
-Directburial
-Inair
-Inducts
-Atterminations(withformer)
9.2Maximalpermissiblepullingforceoftotalcable
9.3Maximalsidewallbearingpressuretothecableatbending points
9.4Deliverylengthperdrum
-Normal
-Maximum
9.5Maximalweightoffulldrumwithmaximumdeliverylengthof cable
9.6Drumdimensions:
-Flangediameter
-Core diameter
-Width / kV
mm mmmmmm
kN
kN/m
m m
kg
m mm / <10pC
12kVfor15 minutes
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220kVCABLESHEATHBONDINGANDEARTHINGEQUIPMENT / UNIT / DATARequired / Offered
1.SHEATHVOLTAGELIMITERS
1.1.Manufacturer
1.2.Typedesignation
1.3.Type
1.4.Typetestcarriedout
1.5..Ratedfrequency
1.6.Systemvoltage
1.7.Protectivelevel
1.8.Peak values of residual voltage on 8/20 microsecond current impulse currentof:
-2000A
-5000A
-10000A
-15000A
-20000A
1.9.Withstandenergy
1.10.Maximumspecifieda.c.voltagewhichcanbewithstoodfor2sec.
1.11.ConductivitycharacteristicsofSVLat200V
-d.c.testcurrent
-voltage limitminimal
-voltage limitmaximal
1.12.Insulationresistanceat1000Vd.c.voltage
1.13Permissibleambienttemperature
1.14Nominalphysicaldimensions
-diameter
-height
2.LINKBOXES
2.1.Manufacturer
2.2.Typedesignation
-withSVL
-forsolidbonding
2.3.Type
-alongthe route
-attheterminallocation
2.4.Typetestcarriedout / Yes/no HzkV
kV
kV kVkVkVkV
Joule kV
MA VV
MQ
0C
mm mm
Yes/no / ZnO,non linear
50
220
0– 10mA
::10
0–900C
Lockable/ Buried
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220kVCABLESHEATHBONDINGANDEARTHINGEQUIPMENT / UNIT / DATARequired / Offered
2.5.Ratedfrequency
2.6.Systemvoltage
2.7.Material
-thicknessofsheet
-materialofgaskets
-wayofgasketfitting
2.8.Impulse voltagetest
-betweencablesheaths
-betweensheathsandwater
2.9.D.C.Voltagetest
2.10.Box dimensions
-width
-length
-height
-weight
2.11Protectionclass
3.SINGLECOREBONDINGCABLE
3.1.Manufacturer
3.2.Typedesignation
3.3.Standards
3.4.Conductor
-NominalCrossSection
-No.ofwires/Diameter
-Diameter
3.5.PVCInsulation
-Material
-Thickness
-Diameter
-Graphitecoating
3.6.Nominaloveralldiameter
3.7.Weightofcable
3.8.Maximumd.c.resistanceat20°C
-Innerconductor
-Outerconductor
3.9.DCVoltagetest
-Betweenconductorandscreen
3.10.Impulsevoltagetest(1.2/50) / Hz kV
kV
kV
kV/min
mm mmmmkg
mm²
1/mm
Min/max
mm Min/max. Yes/no
mm kg/m
10-6Ohm/m
10-6Ohm/m
kV/min / 50
220
Compound/
dry
40
20
20kV/1min.
IP65
BS6346
C.55/4
PVC Yes
20kV/1min
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220kVCABLESHEATHBONDINGANDEARTHINGEQUIPMENT / UNIT / DATARequired / Offered
-Betweenconductorandscreen
3.11.Maximumshortcircuitcurrent,1second
3.12.Typetestcarriedout
-IndependentLaboratoryName
-Yearofthe type testperformance / kVkA Yes/no / 45
31.5
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220kVCABLEACCESSORIES / UNIT / DATARequired / Offered
1.TERMINATIONS
1.1.Manufacturer
1.2.Locationof manufacturingsite
1.3.Yearoffirstcommercialoperation
1.3aOperationalexperienceinthe region
1.4.Type tests
-TestRegime
-LocationofTest
-DateofTest
-Nameofindependentwitness
1.5..Identifyingreferencenumber(forcrossreferencewithtypetest)
1.6.Terminationtype (ODSE,OISE,GISE,wettype,drytype)
1.7.PartialDischargeSensor
1.8.Conductorconnectionmethod
1.9.Methodofstresscontrol
1.10.CompliantwithIEC60859(GISEonly)
1.11.Overallweight
1.12.Overalldiameter
1.13Overalllength
2.JOINTS
2.1.Manufacturer
2.2.Locationof manufacturingsite
2.3.Yearoffirstcommercialoperation
2.4.Operationalexperienceinthe region
2.5.Type tests
-TestRegime
-LocationofTest
-DateofTest
-Nameofindependentwitness
2.6.Identifyingreferencenumber(forcrossreferencewithtypetest)
2.7.Jointtype / Yes/no
kg mm mm
Yes/no / IEC62067
ODSE Internal
IEC62067
Premoulded
1-piece
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220kVCABLEACCESSORIES / UNIT / DATARequired / Offered
2.8.Partialdischargesensor
2.9.Conductorconnectionmethod
2.10.Copperjointshellwithleadplumbseals
2.11Sheath insulation (taped, heat shrink sleeve, GF box plus bitumen)
2.12Overalldiameter
2.13Overalllength / mm mm / Internal
yes
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FIBREOPTICPILOTCABLESYSTEM / UNIT / DATARequired / Offered
1.FIBREOPTICPILOTCABLE
1.1.Nameofmanufacturer
1.2.Typedesignation
1.3.Cabletype
1.4.Standards:
-forsinglemodefibres
-foropticalfibrecables
1.5.Numberofopticalfibres
1.6.Opticalwavelength
1.7.Attenuationcoefficient
-at1550nm
-at1625nm
1.8.Dispersioncoefficient
-at1550nm
-at1625nm
1.9.Cutoffwavelength
-at1550nm
-at1625nm
1.10.Maximumopticallossvariationattemperaturerangeof0
oCto+40oC
1.11.Transmissionspeed
1.12.Tensilestrength(withouttemporaryorpermanentoptical degradationandmechanicalcabledamage)
1.13.Permissiblebendingradius
1.14.Mode fielddiameterandtolerance
1.15Mode fieldnon-circularity
1.16.Mode field concentricityerror
1.17.Claddingdiameterandtolerance
1.18.Claddingnon-circularity
1.19.Primarycoatingmaterial
1.20.Diameteroverprimarycoatingandtolerance
1.21.Typeofsecondarycoating
1.22.Secondarycoatingmaterial / Nos. nm dB/km
ps/nm.km
nm
dB/km
Mbit/s
N
mm
1-m
%
1-m
1-m
%
1-m / Non-zerodispersion shiftedsinglemode
ITU-TG.655
48
1550or1625 (optimizedfor1550)
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FIBREOPTICPILOTCABLESYSTEM / UNIT / DATARequired / Offered
1.23.Typeofcentralstrengthelement
1.24.Filler
1.25.Typeofbeltinsulation
-Material
-Radialthickness
1.26.Innerjacket(peripheraltensilestrengthmember)
-Material
-Radialthickness
1.27.Outerjacket
-Material
-Radialthickness
1.28.Anti-termiteprotection
1.29.Overalldiameterofcompletedcable
1.30.Drumlength
1.31.Massofcable(perkm)
1.32.ManufacturerqualitysysteminaccordancewithISO9000
-ApplicableStandard
-Certifiedby(CompanyName)
-Certificationvalidtill(year)
1.33.Typetestcarriedout
-IndependentLaboratoryName
-Yearofthe type testperformance / mm mmmm
“Rigid” plasticover theouter cablejacket
mm km kg
Yes/No
Yes/No / Fibre-reinforced plasticmaterial Non-hygroscopic
PVCtapes
PVC
Yes
Yes
2.FIBREOPTICJOINTCLOSURE
2.1.Nameofmanufacturer
2.2.Typedesignation
2.3.Splicecapacity
2.4.FibreOpticalCableGland
2.5.Maximumopticalattenuationpersplice
2.6.Housing / Nos.
dB / Splice
Min.2fibreoptic cables,eachwith min.48singlemode fibreswith loose
tube
Toaccept metal-free opticalcable, min 48 single mode fibres, withloosetube
0.1
Waterproof,and
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FIBREOPTICPILOTCABLESYSTEM / UNIT / DATARequired / Offered
2.7.Installation
2.8.Dimensions
2.9.Mass
2.10.ManufacturerqualitysysteminaccordancewithISO9000
-ApplicableStandard
-Certifiedby(CompanyName)
-Certificationvalidtill(year)
2.11.Typetestcarriedout
-IndependentLaboratoryName
-Yearofthe type testperformance / mmkg Yes/No
Yes/No / corrosionresistant
Directburialinto ground
Yes
Yes
3.OPTICALTERMINALBOX
3.1.Nameofmanufacturer
3.2.Typedesignation
3.3.Numberofopticalfibres
3.4.FibreOpticalCableGland
3.5.Maximumopticalattenuationpersplice
3.6.Typeofopticalconnectors
3.7.Housing
3.8.Installation
-atsubstationend
-atOHLtowerend
3.9.Dimensions
3.10.Mass
3.11.ManufacturerqualitysysteminaccordancewithISO9000
-ApplicableStandard
-Certifiedby(CompanyName)
-Certificationvalidtill(year)
3.12.Typetestcarriedout
-IndependentLaboratoryName
-Yearofthe type testperformance / Nos.
dB
mmkg Yes/No
Yes/No / min.48
Toaccept metal-free opticalcable, min 48 single mode fibres, withloosetube
0.1
F.C.–P.C. Tamper-proof,
sealed,rugged construction
Wall/structure mounted
Suppliedbyothers
Yes
Yes
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