insulated cables cross-link power cable & cable sizing calculation

XLPE INSULATED CABLES

Need Power Connections? We Have The Solutions! 12

TABLE SPECIFICATION

1A Single-Core 600/1000V Unarmoured Cables (Copper Conductor) 12A-1N BS 5467 / IEC 60502-1

1B Single-Core 600/1000V Armoured Cables (Copper Conductor) 12A-1A BS 5467 / IEC 60502-1

2A Two-Core 600/1000V Unarmoured Cables (Copper Conductor) 12-2N BS5467 / IEC 60502-1

2B Two-Core 600/1000V Armoured Cables (Copper Conductor) 12-2S BS5467 / IEC 60502-1

3A Three-Core 600/1000V Unarmoured Cables (Copper Conductor) 12-3N BS5467 / IEC 60502-1

3B Three-Core 600/1000V Armoured Cables (Copper Conductor) 12-3S BS5467 / IEC 60502-1

4A Four-Core 600/1000V Unarmoured Cables (Copper Conductor) 12-4N BS5467 / IEC 60502-1

4B Four-Core 600/1000V Armoured Cables (Copper Conductor) 12-4S BS5467 / IEC 60502-1

4C Four-Core 600/1000V Armoured Cables (Aluminium Conductor) T13-4S BS5467 / IEC 60502-1

4D Four-Core 600/1000V Copper Tapes Screened Cables (Aluminium Conductor) T13-4C TNB Specification

REFERENCE

5A Single Core 6kV Unarmoured Cables (Copper Conductor) TC-6-1-N TNB Specification

6A Single Core 11kV Unarmoured Cables (Copper Conductor) GC-11-1-N BS 6622 / IEC 60502-2

6B Single Core 11kV Armoured Cables (Copper Conductor) GC-11-1-A BS 6622 / IEC 60502-2

7A Single Core 11kV Unarmoured Cables (Aluminium Conductor) GA-11-1-N BS 6622 / IEC 60502-2

7B Single Core 11kV Armoured Cables (Aluminium Conductor) GA-11-1-A BS 6622 / IEC 60502-2

8 Single Core 11kv Unarmoured Cables (Aluminium Conductor) TA-11-1-N TNB Specification

9A Three Core 11kV Unarmoured Cables (Aluminium Conductor) GC-11-3-N BS 6622 / IEC 60502-2

9B Three Core 11kV Armoured Cables (Copper Conductor) GC-11-3-S BS 6622 / IEC 60502-2

10A Three Core 11kv Unarmoured Cables (Aluminium Conductor) GA-11-3-N BS 6622 / IEC 60502-2

10B Three Core 11kV Armoured Cables (Aluminium Conductor) GA-11-3-S BS 6622 / IEC 60502-2

11 Three Core 11kV Armoured Cables (Aluminium Conductor) TA-11-3-S TNB Specification

12 Three Core 22kV Armoured Cables (Aluminium Conductor) GA-22-3-S BS 6622 / IEC 60502-2

13 Single Core 22kV Unarmoured Cables (Aluminium Conductor) TA-22-1-N TNB Specification

14A Single Core 33kV Unarmoured Cables (Copper Conductor) GC-33-1-N BS 6622 / IEC 60502-2

14B Three Core 33kV Armoured Cables (Copper Conductor) GC-33-3-S BS 6622 / IEC 60502-2

15 Single Core 33kV Copper Wire Screened Cables (Aluminium Conductor) TA-33-1-W TNB / KLIA Specification

16 Single Core 33kV Copper Wire Screened Cables (Copper Conductor) TC-33-1-W TNB / KLIA Specification

17 Single Core 11kV Copper Wire Screened Cables (Copper Conductor) TC-11-1-W TNB / KLIA Specification

18 Single Core 11kV Copper Wire Screened Cables (Aluminium Conductor) TA-11-1-W TNB / KLIA Specification

19 Single Core 11kV Double-sheathed Cables (Aluminium Conductor) TA-11-1-DS TNB Specification

20 Single Core 22kV Double-sheathed Cables (Aluminium Conductor) TA-22-1-DS TNB Specification

21 Three Core 11kV Double-sheathed Cables (Aluminium Conductor) TA-11-3-DS TNB Specification

22 Triplex 11kV XLPE-Insulated Cables (Aluminium Conductor) TA-11-3-T TNB Specification

A Technical Data For Cable Installation

A.1 Minimum Bending Radius

A.2 Maximum Pulling Tension

A.3 Maximum Side Wall Pressure

1 Low Voltage Aerial Bundled Cable 2 11kv Aerial Bundled Cable 3 33kv Aerial Bundled Cable

LOW VOLTAGE XLPE INSULATED POWER CABLES

AERIAL BUNDLED CABLES

MEDIUM VOLTAGE XLPE INSULATED POWER CABLES

13

600/1000V SINGLE CORE XLPE INSULATED POWER CABLES

BASIC CONSTRUCTION

UNARMOURED CABLES

ARMOURED CABLES

Conductor

XLPE Insulation

Sheath

Conductor

XLPE Insulation

Bedding

Armour Wire

Outer Sheath

CONDUCTOR - COPPER OR ALUMINIUM

CONDUCTOR SHAPE - ROUND CIRCULAR STRANDED OR COMPACTED CIRCULAR STRANDED

INSULATION - XLPE

BEDDING - PVC OR POLYETHYLENE

ARMOUR WIRE - ALUMINIUM WIRES

SHEATH MATERIAL - PVC OR POLYETHYLENE

X L P E I N S U L AT E D C A B L E SLOW VOLTAGE XLPE CABLES. MEDIUM VOLTAGE XLPE CABLES.

14

BS 5467IEC 60502-1

REFERENCE12A-1N

TABLE 1A SINGLE-CORE 600/1000V UNARMOURED CABLES (COPPER CONDUCTOR)LOW VOLTAGE XLPE INSULATED POWER CABLES

NominalArea

sq. mm507095

120150185240300400500630800

1000

Shape

circularstranded

or

circularcompacted

Thicknessof

Insulation

mm1.01.11.11.21.41.61.71.82.02.22.42.62.8

Thicknessof

Sheath

mm1.41.41.51.51.61.61.71.81.92.02.22.32.4

OverallDiameter

mm14.015.817.820.022.224.427.530.333.937.742.647.552.6

Approx.Weight

kg/km560770

1020131016001980256031904040507065108250

10330

Reactanceat 50HzΩ/km0.09050.08700.08510.08370.08370.08260.08120.08010.07920.07850.07760.07590.0749

Short CircuitCurrent for 1 sec

kA7.1510.013.517.121.426.434.342.957.271.590.0

114.0143.0

Electrical CharacteristicsCurrent Rating Conductor Resistance

Black PVC sheath

Conductor

BS 5467IEC 60502-1

REFERENCE12A-1A

TABLE 1B SINGLE-CORE 600/1000V ARMOURED CABLES (COPPER CONDUCTOR)LOW VOLTAGE XLPE INSULATED POWER CABLES

NominalArea

sq. mm507095

120150185240300400500630800

1000

Shape

circular

stranded

or

circular

compacted

Thicknessof

Insulation

mm1.01.11.11.21.41.61.71.82.02.22.42.62.8

Thicknessof Extruded

Bedding

mm0.80.80.80.81.01.01.01.01.21.21.21.41.4

Thicknessof Outer Sheath

mm1.51.51.61.61.71.81.81.92.02.12.22.42.5

Nominalof ArmourDiameter

mm0.9

1.251.251.251.61.61.61.62.02.02.02.52.5

OverallDiameter

mm17.319.821.924.027.129.632.435.240.044.148.354.860.0

Approx.Weight

kg/km740

10201330161020302460308037504830604074309550

11750

Reactanceat 50HzΩ/km0.1130.1070.1020.101

0.09990.09750.09460.09200.09230.09030.08780.08630.0847


kA7.1510.013.517.121.426.434.342.957.271.590.0

114.0143.0


Black PVC sheathArmouring : hard drawn Aluminium wire

** In case of TAPED BEDDING : The thickness of taped bedding (approximately 0.8mm) need not be checked by measurement

Conductor

In Air at 40oCamp185235290340390455545630735850985

11501280

In Air at 40oCamp200255310365415480570650760870995

11501250

In Ground at 25oCamp205250300340385435500565635715800890940

dc at 20oCΩ/km0.3870.2680.1930.1530.124

0.09910.07540.06010.04700.03660.02830.02210.0176

50Hz at 90oCΩ/km0.4940.3420.2470.1960.1590.128

0.09820.07930.06320.05090.04150.03470.0300


dc at 20oCΩ/km0.3870.2680.1930.1530.124

0.09910.07540.06010.04700.03660.02830.02210.0176

50Hz at 90oCΩ/km0.4940.3420.2470.1960.1600.128

0.09880.08010.06430.05210.04280.03630.0317

15

600/1000V TW0-CORE XLPE INSULATED POWER CABLES

BASIC CONSTRUCTION

UNARMOURED CABLES

ARMOURED CABLES

Conductor

Insulation

Filler

Core Wrapping

Outersheath

Conductor

Insulation

Filler

Core Wrapping

Bedding

Armour Wire

Outersheath


CONDUCTOR SHAPE - CIRCULAR STRANDED OR COMPACTED CIRCULAR STRANDED

INSULATION - XLPE


ARMOUR WIRE - GALVANISED STEEL WIRES


16

BS 5467IEC 60502-1

REFERENCE12A-2N

TABLE 2A TWO-CORE 600/1000V UNARMOURED CABLES (COPPER CONDUCTOR)LOW VOLTAGE XLPE INSULATED POWER CABLES

NominalArea

sq. mm507095

120150185240300400

Shape

circularstranded

or

circularcompacted

Thicknessof

Insulation

mm1.01.11.11.21.41.61.71.82.0

Thicknessof

Sheath

mm1.81.81.92.02.22.32.52.62.9

OverallDiameter

mm21.024.026.929.933.437.141.745.851.6

Approx.Weight

kg/km115015452070258032003955515063408150

Reactanceat 50HzΩ/km0.06510.06370.06160.06130.06180.06230.06120.06050.0603


kA7.1510.013.517.121.426.434.342.957.2

ELECTRICAL CHARACTERISTICSCurrent Rating Conductor Resistance

Black PVC sheath

Conductor

In Air at 40oCamp205255315370420485580665770


dc at 20oCΩ/km0.3870.2680.1930.1530.124

0.09910.07540.06010.0470

50Hz at 90oCΩ/km0.4940.3420.2470.1960.1600.129

0.09930.08070.0650

BS 5467IEC 60502-1

REFERENCE12A-2S

TABLE 2B TWO-CORE 600/1000V ARMOURED CABLES (COPPER CONDUCTOR)LOW VOLTAGE XLPE INSULATED POWER CABLES

NominalArea

sq. mm507095

120150185240300400

Shape

circular

stranded

or

circular

compacted

Thicknessof

Insulation

mm1.01.11.11.21.41.61.71.82.0


Bedding

mm1.01.01.21.21.21.41.41.61.6


mm1.81.92.02.12.22.42.52.62.8


mm1.61.62.02.02.02.52.52.52.5

OverallDiameter

mm26.529.533.136.139.344.749.053.559.0

Approx.Weight

kg/km18402450321038504650588073008740

11000



kA7.1510.013.517.121.426.434.342.957.2


Black PVC sheath** In case of TAPED BEDDING : The thickness of taped bedding (approximately 0.8mm) need not be checked by measurement

Conductor

In Air at 40oCamp210260315370425485570650745


dc at 20oCΩ/km0.3870.2680.1930.1530.124

0.09910.07540.06010.0470

50Hz at 90oCΩ/km0.4940.3420.2470.1960.1600.129

0.09930.08070.0650

17

600/1000V THREE-CORE XLPE INSULATED POWER CABLES

BASIC CONSTRUCTION

UNARMOURED CABLES

ARMOURED CABLES

Conductor

Insulation

Filler

Core Wrapping

Outersheath

Conductor

Insulation

Filler

Core Wrapping

Bedding

Armour Wire

Outersheath



INSULATION - XLPE




18

BS 5467IEC 60502-1

REFERENCE12A-3N

TABLE 3A THREE-CORE 600/1000V UNARMOURED CABLES (COPPER CONDUCTOR)LOW VOLTAGE XLPE INSULATED POWER CABLES

NominalArea

sq. mm507095

120150185240300

Shape

circularstranded

or

circularcompacted

Thicknessof

Insulation

mm1.01.11.11.21.41.61.71.8

Thicknessof

Sheath

mm1.81.92.02.12.22.42.62.7

OverallDiameter

mm24.027.531.034.237.942.547.852.6

Approx.Weight

kg/km16002260303537904700581076009350

Reactanceat 50HzΩ/km0.06510.06370.06160.06130.06180.06230.06120.0605


kA7.1510.013.517.121.426.434.342.9


Black PVC sheath

Conductor

In Air at 40oCamp175220265300350410480570


dc at 20oCΩ/km0.3870.2680.1930.1530.124

0.09910.07540.0601

50Hz at 90oCΩ/km0.4940.3420.2470.1960.1600.129

0.09960.0809

BS 5467IEC 60502-1

REFERENCE12A-3S

TABLE 3B THREE-CORE 600/1000V ARMOURED CABLES (COPPER CONDUCTOR)LOW VOLTAGE XLPE INSULATED POWER CABLES

NominalArea

sq. mm507095

120150185240300

Shape

circular

stranded

or

circular

compacted

Thicknessof

Insulation

mm1.01.11.11.21.41.61.71.8


Bedding

mm1.01.01.21.21.41.41.41.6


mm1.81.92.12.22.32.42.62.7


mm1.61.62.02.02.52.52.52.5

OverallDiameter

mm29.534.037.540.045.049.555.059.5

Approx.Weight

kg/km245034404380525066808050

1018012150

Reactanceat 50HzΩ/km0.06480.06330.06120.06090.06180.06230.06120.0605


kA7.1510.013.517.121.426.434.342.9


Black PVC sheath** In case of TAPED BEDDING : The thickness of taped bedding (approximately 0.8mm) need not be checked by measurement

Conductor

In Air at 40oCamp175220265300350410480570


dc at 20oCΩ/km0.3870.2680.1930.1530.124

0.09910.07540.0601

50Hz at 90oCΩ/km0.4940.3420.2470.1960.1600.129

0.09960.0809

19

600/1000V FOUR-CORE XLPE INSULATED POWER CABLES

BASIC CONSTRUCTION

UNARMOURED CABLES

ARMOURED CABLES

Conductor

Insulation

Filler

Core Wrapping

Outersheath

Conductor

Insulation

Filler

Core Wrapping

Bedding

Armour Wire

Outersheath



INSULATION - XLPE




20

BS 5467IEC 60502-1

REFERENCE12A-4N

TABLE 4A FOUR-CORE 600/1000V UNARMOURED CABLES (COPPER CONDUCTOR) LOWLOW VOLTAGE XLPE INSULATED POWER CABLES

NominalArea

sq. mm162535507095

120150185240300400

Shape

circularcompacted

or

shapedstranded

Thicknessof

Insulation

mm0.70.90.91.01.11.11.21.41.61.71.82.0

Thicknessof

Sheath

mm1.81.81.81.82.02.12.22.42.62.83.03.2

OverallDiameter

mm18.426.929.533.338.844.249.555.061.469.276.985.2

Approx.Weight

kg/km820

14401880247034804600590072509080

117901468018440

Reactanceat 50HzΩ/km0.07610.06830.06560.06510.06370.06160.06130.06180.06230.06120.06050.0603


kA2.283.575.007.1510.013.517.121.426.434.342.957.2


Black PVC sheath

Conductor

In Air at 40oCamp

88115140175220265300350410480570660


dc at 20oCΩ/km1.15

0.7270.5240.3870.2680.1930.1530.124

0.09910.07540.06010.0470

50Hz at 90oCΩ/km1.47

0.9270.6690.4940.3420.2470.1960.1600.129

0.09960.08090.0653

BS 5467IEC 60502-1

REFERENCE12A-4S

TABLE 4B FOUR-CORE 600/1000V ARMOURED CABLES (COPPER CONDUCTOR)LOW VOLTAGE XLPE INSULATED POWER CABLES

NominalArea

sq. mm1.52.546

10162535507095

120150185240300400

Shape

circular

stranded

circular

compacted

or

shaped

stranded

Thicknessof

Insulation

mm0.70.70.70.70.70.70.90.91.01.11.11.21.41.61.71.82.0


Bedding

mm0.80.80.80.80.80.81.01.01.01.21.21.41.41.41.61.61.8


mm1.41.41.41.51.51.61.71.81.92.12.22.32.42.62.72.93.2


mm0.90.90.9

1.251.251.251.61.61.62.02.02.52.52.52.52.5

3.15

OverallDiameter

mm13.114.615.918.220.421.425.427.930.836.140.045.049.253.759.565.679.3

Approx.Weight

kg/km380480580830

108014201970250031304460560073508750

10530132301610021760

Reactanceat 50HzΩ/km0.10100.09300.08710.08280.07800.07610.06790.06520.06480.06330.06120.06090.06180.06230.06120.06050.0603


kA0.210.360.570.851.422.283.575.007.1510.013.517.121.426.434.342.957.2


Colours for core identification : red, yellow, blue and blackBlack PVC sheath

** In case of TAPED BEDDING : The thickness of taped bedding (approximately 0.8mm) need not be checked by measurement

Conductor

In Air at 40oCamp

232938486688

115140175220265300350410480570655

In Ground at 25oCamp

2937496181

100135160190235285325365410475535605

dc at 20oCΩ/km12.17.414.613.081.831.15

0.7270.5240.3870.2680.1930.1530.124

0.09910.07540.06010.0470

50Hz at 90oCΩ/km15.49.455.883.932.331.47

0.9270.6690.4940.3420.2470.1960.1600.129

0.09960.08090.0653

21

TNBSPECIFICATION

REFERENCET13-4S

TABLE 4C FOUR-CORE 600/1000V ARMOURED CABLES (ALUMINIUM CONDUCTOR)LOW VOLTAGE XLPE INSULATED POWER CABLES

NominalArea

Conductors

sq. mm2570

120185300

Thicknessof

Insulation

mm0.91.11.21.61.8


Bedding

mm1.21.21.31.51.7


mm1.82.22.52.83.3

OverallDiameter

mm29.940.548.858.471.6

Approx.Weight

kg/km15302880447060609290

Reactance

at 50Hz

Ω/km0.0790.0750.0730.0730.072

Voltage Drop

mV2.7

0.990.580.390.26


Core colour identification : Natural coloured insulation with red, yellow, blue and black tapesBlack PVC sheath

In Air at 40oCamp89

166238315434


dc at 20oCΩ/km1.20

0.4430.2530.1640.100


0.5680.3250.2110.13


mm1.62.02.52.52.5

TNBSPECIFICATION

REFERENCET13-4C

TABLE 4D FOUR-CORE 600/1000V COPPER TAPES SCREENED CABLES (ALUMINIUM CONDUCTOR)LOW VOLTAGE XLPE INSULATED POWER CABLES

NominalArea

Conductors

sq. mm2570

120185300

Thicknessof

Insulation

mm0.91.11.21.61.8


Bedding

mm1.01.21.31.51.7


mm1.72.12.42.73.1

OverallDiameter

mm25.236.645.956.469.0

Approx.Weight

kg/km820

1725270040206100

Reactanceat 50HzΩ/km0.0790.0750.0730.0730.072

Voltage Drop

mV2.7

0.990.580.390.26


Core colour identification : red, yellow, blue and blackBlack PE sheath

* Copper Tapes shall be applied over the bedding

In Air at 40oCamp

89166238315434


dc at 20oCΩ/km1.20

0.4430.2530.1640.100


0.5680.3250.2110.13

22

MEDIUM VOLTAGE SINGLE CORE XLPE INSULATED POWER CABLE

BASIC CONSTRUCTION

UNARMOURED CABLES

ARMOURED CABLES

ConductorConductor ScreenXLPE InsulationInsulation ScreenMetallic ScreenOuter Sheath

ConductorConductor ScreenXLPE InsulationInsulation ScreenMetallic ScreenBeddingArmour WireOuter Sheath


CONDUCTOR SHAPE - COMPACTED CIRCULAR STRANDED

INSULATION - XLPE


ARMOUR WIRE - ALUMINIUM WIRES


23

TNBSPECIFICATION

REFERENCETC-6-1-N

TABLE 5A SINGLE-CORE 6kV UNARMOURED CABLES (COPPER CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES

Reactanceat 50HzΩ/km0.094

Capacitance

μF/km0.64


In Air at 40oCamp629


dc at 20oCΩ/km0.0601


NominalArea of

Conductorssq. mm

300

Thicknessof

Insulationmm2.8


mm2.0

OverallDiameter

mm35.1

Approx.Weight

kg/km3560

BS 662IEC 60502-2

REFERENCEGC-11-1-N


Reactanceat 50HzΩ/km0.1260.1190.1120.1080.1060.1030.0990.0960.0930.0900.087

Capacitance

μF/km0.270.310.340.370.400.440.490.540.590.660.74


In Air at 40oCamp217242306353400459544629714799944


dc at 20oCΩ/km0.3870.2680.1930.1530.124

0.09910.07540.06010.04700.03660.0283

50Hz at 90oCΩ/km0.4930.3420.2470.1960.1590.128

0.09800.07900.06330.05110.0416

NominalArea of

Conductorssq. mm

507095

120150185240300400500630

Thicknessof

Insulationmm3.43.43.43.43.43.43.43.43.43.43.4


mm1.71.71.81.81.91.92.02.12.22.32.4

OverallDiameter

mm23.725.327.128.630.031.734.036.439.442.746.5

Approx.Weight

kg/km950

1180147017402030242030103640451056207070

BS 6622IEC 60502-2

REFERENCEGC-11-1-A

TABLE 6B SINGLE-CORE 11kV ARMOURED CABLES (COPPER CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.270.310.340.370.400.440.490.540.590.660.74


In Air at 40oCamp217242306353400459544629714799944


dc at 20oCΩ/km0.3870.2680.1930.1530.124

0.09910.07540.06010.04700.03660.0283

50Hz at 90oCΩ/km0.4930.3420.2470.1960.1590.128

0.09800.07900.06330.05110.0416

NominalArea of

Conductorssq. mm

507095

120150185240300400500630

Thicknessof

Insulationmm3.43.43.43.43.43.43.43.43.43.43.4

Thicknessof Outer Sheathmm1.81.91.92.02.12.12.22.22.42.52.6

OverallDiameter

mm31.733.335.136.638.840.542.845.247.952.055.6

Approx.Weight

kg/km16001870221025102950337040304720563069908520


Beddingmm1.21.21.21.21.21.21.21.21.21.31.4

Nominalarmour

wirediameter

mm1.61.61.61.62.02.02.02.02.02.52.5

24

BS 6622IEC 60502-2

REFERENCEGA-11-1-N

TABLE 7A SINGLE-CORE 11kV UNARMOURED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.270.310.340.370.400.440.490.540.590.660.74


In Air at 40oCamp153191238272310361425493570672774


dc at 20oCΩ/km0.6410.4430.3200.2530.2060.1640.1250.100

0.07780.06050.0469

50Hz at 90oCΩ/km0.8210.5690.4100.3250.2650.2110.1610.1300.102

0.08160.0647

NominalArea of

Conductorssq. mm

507095

120150185240300400500630

Thicknessof

Insulationmm3.43.43.43.43.43.43.43.43.43.43.4


mm1.71.71.81.81.91.92.02.12.22.32.4

OverallDiameter

mm23.825.427.128.630.031.734.036.239.242.546.3

Approx.Weight

kg/km650760880990

1110126014901720206024803010

BS 6622IEC 60502-2

REFERENCEGA-11-1-A

TABLE 7B SINGLE-CORE 11kV ARMOURED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.270.310.340.370.400.440.490.540.590.660.74


In Air at 40oCamp153191238272310361425493570672774


dc at 20oCΩ/km0.6410.4430.3200.2530.2060.1640.1250.100

0.07780.06050.0469

50Hz at 90oCΩ/km0.8210.5690.4100.3250.2650.2110.1610.1300.102

0.08160.0647

NominalArea of

Conductorssq. mm

507095

120150185240300400500630

Thicknessof

Insulationmm3.43.43.43.43.43.43.43.43.43.43.4

Thicknessof Outer Sheathmm1.81.91.92.02.12.12.22.22.42.52.6

OverallDiameter

mm31.833.435.136.638.840.542.845.047.751.855.4

Approx.Weight

kg/km13101450161017602020222025102790318038404460


Beddingmm1.21.21.21.21.21.21.21.21.21.31.4

NominalArmour

WireDiameter

mm1.61.61.61.62.02.02.02.02.02.52.5

TNBSPECIFICATION

REFERENCETA-11-1-N

TABLE 8 SINGLE-CORE 11kV UNARMOURED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.66






NominalArea of

Conductorssq. mm

500

Thicknessof

Insulationmm3.4


mm4.0

OverallDiameter

mm46.7

Approx.Weight

kg/km2740

25

MEDIUM VOLTAGE THREE CORE XLPE INSULATED POWEDR CABLE

BASIC CONSTRUCTION

UNARMOURED CABLES

ARMOURED CABLES

ConductorConductor ScreenInsulationInsulation ScreenMetallic Screen

FillerBinder TapeOutersheath

Conductor

Conductor Screen

Insulation

Insulation Screen

Metallic Screen

Binder Tape

Filler

Bedding

Armour Wire

Outersheath



INSULATION - XLPE




26

BS 6622IEC 60502-2

REFERENCEGC-11-3-N

TABLE 9A THREE-CORE 11kV UNARMOURED CABLES (COPPER CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.200.220.240.270.300.340.370.400.430.480.530.59


In Air at 40oCamp111123149187230281319366417485553629


dc at 20oCΩ/km1.15

0.7270.5240.3870.2680.1930.1530.124

0.09910.07540.06010.0470


0.9270.6680.4930.3420.2470.1960.1590.128

0.09840.07970.0639

NominalArea of

Conductorssq. mm

162535507095

120150185240300400

Thicknessof

Insulationmm3.43.43.43.43.43.43.43.43.43.43.43.4


mm2.22.22.32.42.52.72.82.93.03.13.33.5

OverallDiameter

mm38.741.343.746.450.154.257.660.964.770.075.681.8

Approx.Weight

kg/km1660204024402910368046505530649077309650

1171014460

BS 6622IEC 60502-2

REFERENCEGC-11-3-S

TABLE 9B THREE-CORE 11kV ARMOURED CABLES (COPPER CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.200.220.240.270.300.340.370.400.430.480.530.59


In Air at 40oCamp111123149187230281319366417485553629


dc at 20oCΩ/km1.15

0.7270.5240.3870.2680.1930.1530.124

0.09910.07540.06010.0470


0.9270.6680.4930.3420.2470.1960.1590.128

0.09840.07970.0639

NominalArea of

Conductorssq. mm

162535507095

120150185240300400

Thicknessof

Insulationmm3.43.43.43.43.43.43.43.43.43.43.43.4

Thicknessof Outer Sheathmm2.32.42.52.62.72.83.03.13.23.43.63.8

OverallDiameter

mm47.250.853.055.559.062.966.469.773.580.285.790.9

Approx.Weight

kg/km3750475052705870683079909080

1022011690149901732020500


Beddingmm1.21.31.31.41.41.51.61.61.71.81.92.0

NominalArmour

WireDiameter

mm2.02.52.52.52.52.52.52.52.5

3.153.153.15

27

BS 6622IEC 60502-2

REFERENCEGA-11-3-N

TABLE 10A THREE-CORE 11kV UNARMOURED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.200.220.240.270.300.340.370.400.430.480.530.59


In Air at 40oCamp

8098

119145179213251281327383434502


87104122144176207239270302342392441

dc at 20oCΩ/km1.911.20

0.8680.6410.4430.3200.2530.2060.1640.1250.100

0.0778

50Hz at 90oCΩ/km2.441.541.11

0.8220.5680.4100.3250.2650.2110.1610.1300.102

NominalArea of

Conductorssq. mm

162535507095

120150185240300400

Thicknessof

Insulationmm3.43.43.43.43.43.43.43.43.43.43.43.4


mm2.22.22.32.42.52.72.82.93.03.13.3

3.55

OverallDiameter

mm38.741.343.846.550.254.257.660.964.770.075.281.4

Approx.Weight

kg/km136015701780202024002860327036904240506059107070

BS 6622IEC 60502-2

REFERENCEGA-11-3-S

TABLE 10B THREE-CORE 11kV ARMOURED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.200.220.240.270.300.340.370.400.430.480.530.59


In Air at 40oCamp

8098

119145179213251281327383434502


87104122144176207239270302342392441

dc at 20oCΩ/km1.911.20

0.8680.6410.4430.3200.2530.2060.1640.1250.100

0.0778

50Hz at 90oCΩ/km2.441.541.11

0.8220.5680.4100.3250.2650.2110.1610.1300.102

NominalArea of

Conductorssq. mm

162535507095

120150185240300400

Thicknessof

Insulationmm3.43.43.43.43.43.43.43.43.43.43.43.4

Thicknessof Outer Sheathmm2.32.42.52.62.72.83.03.13.23.43.63.8

OverallDiameter

mm47.250.853.155.659.162.966.469.773.580.285.391.5

Approx.Weight

kg/km378042804610499055506200682074208200

103001149013070


Beddingmm1.21.31.31.41.41.51.61.61.71.81.92.0

NominalArmour

WireDiameter

mm2.02.52.52.52.52.52.52.52.5

3.153.153.15

28

TNBSPECIFICATION

REFERENCETA-11-3-S

TABLE 11 THREE-CORE 11kV ARMOURED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES

Reactanceat 50HzΩ/km0.1000.0940.089

Capacitance

μF/km0.340.400.48




dc at 20oCΩ/km0.3200.2060.125

50Hz at 90oCΩ/km0.4100.2650.161

NominalArea of

Conductorssq. mm

95150240

Thicknessof

Insulationmm3.43.43.4

Thicknessof Outer Sheathmm2.83.13.4

OverallDiameter

mm63.870.581.1

Approx.Weight

kg/km579069409650


Beddingmm1.51.61.8

NominalArmour

WireDiameter

mm2.52.5

3.15

BS 6622IEC 60502-2

REFERENCEGA-22-3-S

TABLE 12 THREE-CORE 22kV ARMOURED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.1780.1940.2160.2400.2610.28

0.3030.3340.367


In Air at 40oCamp123149183221255285332391442


dc at 20oCΩ/km0.8680.6410.4430.3200.2530.2060.1640.1250.100


0.8210.5690.4090.3240.2650.2110.1600.129

NominalArea of

Conductorssq. mm

35507095

120150185240300

Thicknessof

Insulationmm5.55.55.55.55.55.55.55.55.5

Thicknessof Outer Sheathmm2.82.93.03.23.33.43.63.73.9

OverallDiameter

mm62.865.569.173.177.981.185.090.295.4

Approx.Weight

kg/km587063106930767092709950

108501208013360


Beddingmm1.51.51.61.71.71.81.92.02.0

NominalArmour

WireDiameter

mm2.52.52.52.53.23.23.23.23.2

TNBSPECIFICATION

REFERENCETA-22-1-N

TABLE 13 SINGLE-CORE 22kV UNARMOURED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.44






NominalArea of

Conductorssq. mm

500

Thicknessof

Insulationmm5.5


mm4.0

OverallDiameter

mm51.3

Approx.Weight

kg/km3080

29

BS 6622IEC 60502-2

REFERENCEGC-33-3-S

TABLE 14B THREE-CORE 33kV ARMOURED CABLES (COPPER CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES

Reactanceat 50HzΩ/km0.1430.1350.1280.1230.119

Capacitance

μF/km0.1550.1710.1880.2020.216


In Air at 40oCamp191234281323366


dc at 20oCΩ/km0.3870.2680.1930.1530.124

50Hz at 90oCΩ/km0.4940.3420.2460.1960.159

NominalArea of

Conductorssq. mm

507095

120150

Thicknessof

Insulationmm8.08.08.08.08.0

Thicknessof Outer Sheathmm2.22.22.32.32.4

OverallDiameter

mm44.145.747.549.051.4

Approx.Weight

kg/km25902900326036004130


Beddingmm1.21.21.21.21.3

NominalArmour

WireDiameter

mm2.02.02.02.02.5

BS 6622IEC 60502-2

REFERENCEGC-33-1-N



Capacitance

μF/km0.35






NominalArea of

Conductorssq. mm

630

Thicknessof

Insulationmm8.0


mm2.7

OverallDiameter

mm57.9

Approx.Weight

kg/km8050

30

TNB/KLIA SPECIFICATION MEDIUM VOLTAGE XLPE INSULATED POWER CABLE

BASIC CONSTRUCTION

SINGLE CORE COPPER WIRE SCREEN CABLE



INSULATION - XLPE

METALLIC SCREEN - COPPER WIRE SCREEN

METALLIC TAPE - LAMINATED ALUMINIUM TAPE

SHEATH MATERIAL - POLYETHYLENE

Conductor

Conductor Screen

XLPE Insulation

Insulation Screen

Semi-Conducting Swellable Tape

Metallic ScreenSeparator TapeSemi-Conducting Swellable TapeIdentification Tape

Metallic Tape

Outer Sheath

31

TNB SPECIFICATRIONKLIA/D/UTO6/O58/95

REFERENCETA-33-1-W

TABLE 15 SINGLE-CORE 33kV COPPER WIRE SCREEN CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.35






NominalArea of

Conductorssq. mm

630

Thicknessof

Insulationmm9.0

Nominal ofPACW

Diametermm2.52

Thicknessof Outer Sheathmm5.0

OverallDiameter

mm71.4

Approx.Weight

kg/km7220


REFERENCETC-11-1-W



Capacitance

μF/km0.66






NominalArea of

Conductorssq. mm

500

Thicknessof

Insulationmm3.4

Nominal ofPACW

Diametermm2.52


OverallDiameter

mm54.4

Approx.Weight

kg/km8100


REFERENCETC-33-1-W

TABLE 16 SINGLE-CORE 33kV COPPER WIRE SCREEN CABLES (COBLES CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES

Reactanceat 50HzΩ/km0.1120.099

Capacitance

μF/km0.220.35




dc at 20oCΩ/km0.06010.0283

50Hz at 90oCΩ/km0.07850.0405

NominalArea of

Conductorssq. mm

300630

Thicknessof

Insulationmm9.09.0

Nominal ofPACW

Diametermm2.522.52

Thicknessof Outer Sheathmm5.05.0

OverallDiameter

mm71.472.1

Approx.Weight

kg/km7220

11320


REFERENCETA-11-1-W


Reactanceat 50HzΩ/km0.0960.090

Capacitance

μF/km0.540.66





0.0605


0.0816

NominalArea of

Conductorssq. mm

300500

Thicknessof

Insulationmm3.43.4

Nominal ofPACW

Diametermm3.002.52

Thicknessof Outer Sheathmm4.04.0

OverallDiameter

mm49.454.2

Approx.Weight

kg/km42504970

32

TNB SPECIFICATION MEDIUM VOLTAGE SINGLE-CORE XLPE INSULATEDDOUBLE-SHEATHD POWER CABLE

TNB SPECIFICATION MEDIUM VOLTAGE THREE-CORE XLPE INSULATEDDOUBLE-SHEATHD POWER CABLE

BASIC CONSTRUCTION

ConductorConductor ScreenXLPE InsulationInsulation ScreenMetallic ScreenInnersheathSeparator TapeOutersheath

Conductor

Conductor Screen

Insulation

Insulation Screen

Metallic Screen

Binder Tape

Innersheath

Separator Tape

Outersheath


MATERIAL SHAPE - COMPACTED CIRCULAR STRANDED

INSULATION - XLPE

INNERSHEATH MATERIAL - POLYETHYLENE

OUTERSHEATH MATERIAL - POLYETHYLENE

33

TNBSPECIFICATION

REFERENCETA-11-1-DS

TABLE 19 SINGLE-CORE 11kV DOUBLE-SHEATHED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.66






NominalArea of

Conductorssq. mm

500

Thicknessof

Insulationmm3.4


mm2.4

OverallDiameter

mm47.8

Approx.Weight

kg/km2780

TNBSPECIFICATION

REFERENCETA-22-1-DS

TABLE 20 SINGLE-CORE 22kV DOUBLE-SHEATHED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.66






NominalArea of

Conductorssq. mm

500

Thicknessof

Insulationmm5.5


mm2.5

OverallDiameter

mm52.4

Approx.Weight

kg/km3145

TNBSPECIFICATION

REFERENCETA-11-3-T

TABLE 22 TRIPLEX 11kV XLPE INSULATED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES


Capacitance

μF/km0.5490






NominalArea of

Conductorssq. mm

240

Thicknessof

Insulationmm3.4


OverallDiameter

OverOutersheath

mm35.8

OverallDiameter

mm77.3

Approx.Weight

kg/km4680

TNBSPECIFICATION

REFERENCETA-11-3-DS

TABLE 21 THREE-CORE 11kV DOUBLE-SHEATHED CABLES (ALUMINIUM CONDUCTOR)MEDIUM VOLTAGE XLPE INSULATED POWER CABLES

Reactanceat 50HzΩ/km0.1120.1060.099

Capacitance

μF/km0.340.400.49




dc at 20oCΩ/km0.3200.2060.125

50Hz at 90oCΩ/km0.4100.2650.161

NominalArea of

Conductorssq. mm

95150240

Thicknessof

Insulationmm3.43.43.4


mm2.72.93.2

OverallDiameter

mm59.266.179.0

Approx.Weight

kg/km332540955565

Minimum thickness of the innersheath shall be 2.0mm

34

MEDIUM VOLTAGE XLPE INSULATED, MDPE OUTERSHEATED, TRIPLEX CABLE

BASIC CONSTRUCTION

Conductor

Conductor Screen

Insulation

Insulation Screen

Metallic Screen

Outersheath

CONDUCTOR - ALUMINIUM

MATERIAL SHAPE - COMPACTED CIRCULAR STRANDED

INSULATION - XLPE

METALLIC SCREEN - COPPER TAPES

SHEATH MATERIAL - POLYETHYLENE

35

600/1000V XLPE INSULATED, PVC OUTERSHEATHED, QUADRUPLEX CABLE

BASIC CONSTRUCTION

Conductor

Insulation

Outersheath

CONDUCTOR - ALUMINIUM


INSULATION - XLPE

SHEATH MATERIAL - PVC

36

TABLE A TECHNICAL DATA FOR CABLE INSTALLATION

A.1 MINIMUM BENDING RADIUS

CABLE TYPE

Unarmoured

Wire Armoured

Tape Armoured

SINGLE-CORE

20D

15D

15D

MULTI-CORE

15D

12D

12D

A.1 MINIMUM PULLING TENSION

A.3 MAXIMUM SIDE WALL PRESSURE The side wall pressure of the cable should not exceed 500kg/m.

The calculation:-

P = T/R

Where

P = Side Wall Pressure (kg/m)

T = Pulling Tension (kg)

R = Bending Radius (m)

D = Cable Overall Diameter

S = Total Cross Sectional Area of Conductors (mm2)

K = 7kg/mm2 for Copper Conductor; 4kg/mm2 for Aluminium Conductor

PULLING METHOD

Pulling Eye Attached to the Conductors

Pulling Grip Over the Cable Sheath

MAXIMUM PULLING TENSION, T IN KG

T = K x S

T = 500

37

38

CALCULATION BASE FOR ELECTRICAL CHARACTERISTICS

CALCULATION BASE FOR ELECTRICAL CHARACTERISTICS

INSTALLATION CONDITIONS AND CORRECTION FACTORS FOR CONTINUOUSCURRENT RATING FOR:

1. XLPE Insulated & PVC Sheathed Cables 0.6/1kV IEC: 502

2. XLPE Insulated, Wire Armoured & PVC Sheathed Cables 0.6/1kV IEC: 502

INSTALLATIONIn Air (Ambient Temperature: 40oC) In the Ground (Ambient Temperature: 25oC)

Single-core cable Multi-core cable Single-core cable Multi-core cable70

0mm

700m

m

Ground level

Thermal resistivity120oC cm/w

15

1.22

1.07

20

1.18

1.04

25

1.14

1.0

30

1.10

0.96

35

1.05

0.92

40

1.0

0.88

45

0.95

0.83

50

0.89

0.78

55

0.84

0.73

Installation

Ambient Temperature(oC)

In Air

In the Ground

Thermal resistivity120oC cm/w

Plus 1 line

Delete this line

SHORT CIRCUIT CURRENT

XLPE PROPERTIES

Cross linked Polyethylene – (XLPE) materials are derived through processes which cause a cross-bonding activity among conventional polyethyl-ene (PE) molecules. Such cross-bonded PE matrixes, while retaining the same outstanding electrical properties as conventional PE, demon-strate, in this new form, vastly improved thermal and mechanical properties, especially with regard to high temperatures strength.

Figure 1 represents the structure of a conven-tional PE molecule. Such molecules will, in actu-ality, comprise somewhere between 1000 – 4000 carbon atoms. By causing the formation of cross-bonds (cross-linking Fig.2) between such enormous molecules, a very tough material will result (as is the case with vulcanized rubber), where only a slight deformation can possibly occur even at high temperature. This is the reason why XLPE is superior in heat resistance.

Today, there are several methods that can be applied top vulcanize polyethylene, and any one process is selected according to the kind of cable involved. For high voltage cable, chemi-cal vulcanization is used, wherein a low density polyethylene is mixed with a vulcanizing (cross-linking) agent and heated to let the chemical reaction take place.

The thermally permissible short circuit current for a Con-ductor of specified size may be calculated from the equations below. For the purposes of calculated, the standard short circuit duration period is up to 5 sec.

1. Copper conductor

2. Aluminium conductor

whereS = Conductor size (mm2)t = Short circuit (seconds)

I = 143 . S (A)t

I = 94. S (A)t

Short current limitsfor copper conductor cables(Thermal threshold)

0.1 sec0.2 sec0.5 sec1.0 sec2.0 sec

1000800

500

200

1008050

20

108

5

2

0.8

0.5

0.2

01 5 4 6 10 16 25 50 95 150 300 500 10002.5

Nominal cross-sectional area (mm2)

Cur

rent

(KA

)

Fig 1 PE

H

C

H

H

C

H

H

C

H

H

C

H

H

C

H

Fig 2 XLPE

H

C

H

H

C

H

H

C

H

H

C

H

H

C

HH

C

H

H

C

H

H

C

H

H

C

H

H

C

H

39

NUMBER &

DIAMETER

OF

STRANDS

NOMINAL

DIAMETER

OF

CONDUCTOR

NOMINAL

THICKNESS

OF

INSULATION

NOMINAL

DIAMETER OF

INSULATED

CONDUCTOR

CONDUCTOR

SIZE

NUMBER &

DIAMETER

OF

STRANDS

NOMINAL

DIAMETER

OF

CONDUCTOR

NOMINAL

THICKNESS

OF

INSULATION

NOMINAL

DIAMETER OF

INSULATED

CONDUCTOR

CONDUCTOR

SIZE

CONDUCTOR

SIZE

NUMBER &

DIAMETER

OF

STRANDS

NOMINAL

DIAMETER

OF

CONDUCTOR

NOMINAL

THICKNESS

OF

INSULATION

NOMINAL

DIAMETER OF

INSULATED

CONDUCTOR

MODULUS

OF

ELASTICITY

TEMPERATURE

COEFFICIENT

OF

EXPANSION

BREAKING

LOAD

NOMINAL

OVERALL

DIAMETER

OF CABLE

PHASE CONDUCTORS MESSENGER CONDUCTOR MESSENGER CONDUCTORS

1x16+25

3x16+25

3x95+70+16

3x185+120+16

SIZES

OF

AERIAL

BUNDLED

CABLES

3x16

3x16

3x95

3x185

7/1.78

7/1.78

19/2.60

37/2.60

4.7

4.7

11.4

16.1

1.0

1.0

1.6

2.0

6.8

6.8

14.8

20.3

1.99

1.99

0.333

0.171

-

-

16

16

-

-

7/1.78

7/1.78

-

-

4.7

4.7

-

-

1.0

1.0

-

-

6.8

6.8

-

-

1.99

1.99

25

25

70

120

7/2.34

7/2.34

19/2.14

19/2.85

7.0

7.0

10.7

14.3

1.2

1.2

1.4

1.6

9.5

9.5

13.8

17.6

1.430

1.430

0.511

0.322

6 000

6 000

5 700

5 700

2.30E + 05

2.30E + 05

2.30E + 05

2.30E + 05

8.44

8.44

19.6

33.6

(No/mm & sq.mm) (sq.mm) (No./mm) (mm) (mm) (mm) (Ω/km) (sq.mm) (No./mm) (mm) (mm) (mm) (Ω/km) (sq.mm) (No./mm) (mm) (mm) (mm) (Ω/km) (kg/sq.mm) (1/oC) (kN) (mm)

16.4

23.3

43.5

58.2

TNBSPECIFICATION

TABLE 1 LOW VOLTAGE AERIAL BUNDLE CABLE (ALUMINIUM)

CURRENT RATING

1x16+25

3x16+25

3x95+70+16

3x185+120+16

(No/mm & sq.mm)

SIZES

OF

AERIAL

BUNDLED

CABLES

CONTINUOUS CURRENT RATING

WITH AN AMBIENT TEMPERATURE

OF 30oC

0.1 SEC

MAXIMUM PERMISSIBLE

SHORT-TIME CURRENT

AT:

(A)

(kA)

97.7

71.5

186

275

3.65

3.65

21.7

42.2

0.5 SEC

1.63

1.63

9.70

18.9

1 SEC

1.15

1.15

6.86

13.4

3 SEC

0.67

0.67

3.96

7.71

PHYSICAL PROPERTIES AND DIMENSIONS

BASIC CONSTRUCTION

1. Insulated Phase Conductor

2. Insulated Messenger

3. Insulated Street Lighting Conductor

MAX. AC

RESISTANCE

AT 30oC

MAX. AC

RESISTANCE

AT 30oC

MAX. AC

RESISTANCE

AT 30oC

40

NUMBER &

DIAMETER

OF

STRANDS

NOMINAL

DIAMETER

OF

CONDUCTOR

NOMINAL

THICKNESS

OF

INSULATION

CONDUCTOR

SIZE

PHASE CONDUCTORS MESSENGER CONDUCTORS

3x50+50

3x70+50

SIZES

OF

AERIAL

BUNDLED

CABLES

3x50

3x70

7/3.06

19W

8.09

9.73

3.4

3.4

0.641

0.443

0.300

0.338

0.133

0.123

50

50

7/3.00

7/3.00

(No/mm & sq.mm) (sq.mm) (No./mm) (mm) (mm)

NOMINAL

DIAMETER OF

INSULATED

CONDUCTOR

18.5

20.1

(mm) (Ω/km)

TNBSPECIFICATION

TABLE 2 11kV AERIAL BUNDLED CABLE (ALUMINIUM)

CURRENT RATING

3x50+50

3x70+50

(No/mm & sq.mm)

SIZES

OF

AERIAL

CABLES

0.1 SEC

MAXIMUM PERMISSIBLE

SHORT-TIME CURRENT

AT:

(A)

(kA) (kA)

140

175

4.5

6.5

3 SEC

2.6

3.7

0.1 SEC

1.78

1.94

3 SEC

1.03

1.12


0.822

0.443

(Ω/km)

EQUIVALENT

STAR

CAPACITANCE

(Ω/km)

STAR

REACTANCE

AT 50Hz

(Ω/km)

CONDUCTOR

SIZE

(sq.mm)

NUMBER &

DIAMETER

OF

STRANDS

(No./mm)

9.0

9.0

NOMINAL

DIAMETER

OF

CONDUCTOR

(mm)

1280

1280

MINIMUM

TENSILE

STRENGTH

(N/mm2)

MINIMUM

ELONGATION

(%)

MINIMUM

ZINC

COATING

(g/mm2)

NOMINAL

OVERALL

DIAMETER

OF CABLE

(mm)

3.5

3.5

240

240

52.8

56.3

(mV/A.m)

1.665

1.162

MAX. DC

RESISTANCE

AT 20oC

MAX. AC

RESISTANCE

AT 90oC



OF 30oC

COPPER TAPE EARTH FAULT RATING

AT INITIAL TEMPERATURE : 75oCAT FINAL TEMPERATURE : 180oC

MAXIMUMVOLTAGE DROP

AT 90oC FOR1 PHASE CIRCUIT

BASIC CONSTRUCTION

1. Conductor2. Conductor Screen3. Insulation4. Insulation Screen5. Messenger

6. Metallic Screen

7. Oversheath

41

NUMBER &

DIAMETER

OF

STRANDS

NOMINAL

DIAMETER

OF

CONDUCTOR

NOMINAL

THICKNESS

OF

INSULATION

CONDUCTOR

SIZE

PHASE CONDUCTORS MESSENGER CONDUCTORS

3x50+50

3x150+50

3x185+50

SIZES

OF

AERIAL

BUNDLED

CABLES

3x50

3x150

3x185

7/3.06

37W

37W

8.09

14.40

16.10

8.0

8.0

8.0

0.641

0.206

0.164

0.158

0.221

0.238

0.156

0.127

0.122

50

50

50

7/3.00

7/3.00

7/3.00

(No/mm & sq.mm) (sq.mm) (No./mm) (mm) (mm)

NOMINAL

DIAMETER OF

INSULATED

CONDUCTOR

29.3

35.6

37.3

(mm) (Ω/km)

TNBSPECIFICATION

TABLE 3 33kV AERIAL BUNDLED CABLE (ALUMINIUM)

CURRENT RATING

3x50+50

3x150+50

3x185+50

(No/mm & sq.mm)

SIZES

OF

AERIAL

CABLES

0.1 SEC

MAXIMUM PERMISSIBLE

SHORT-TIME CURRENT

AT:

(A)

(kA) (kA)

165

315

355

4.5

14.0

8.1

3 SEC

2.6

17.5

10.1

0.1 SEC

2.82

3.56

3.73

3 SEC

1.63

2.05

2.15


0.822

0.205

0.211

(Ω/km)

EQUIVALENT

STAR

CAPACITANCE

(Ω/km)

STAR

REACTANCE

AT 50Hz

(Ω/km)

CONDUCTOR

SIZE

(sq.mm)

NUMBER &

DIAMETER

OF

STRANDS

(No./mm)

9.0

9.0

9.0

NOMINAL

DIAMETER

OF

CONDUCTOR

(mm)

1280

1280

1280

MINIMUM

TENSILE

STRENGTH

(N/mm2)

MINIMUM

ELONGATION

(%)

MINIMUM

ZINC

COATING

(g/mm2)

NOMINAL

OVERALL

DIAMETER

OF CABLE

(mm)

3.5

3.5

3.5

240

240

240

79.3

89.6

93.3

(mV/A.m)

1.673

0.587

0.487

MAX. DC

RESISTANCE

AT 20oC

MAX. AC

RESISTANCE

AT 90oC



OF 30oC

COPPER TAPE EARTH FAULT RATING

AT INITIAL TEMPERATURE : 75oCAT FINAL TEMPERATURE : 180oC

MAXIMUMVOLTAGE DROP

AT 90oC FOR1 PHASE CIRCUIT

BASIC CONSTRUCTION

1. Conductor2. Conductor Screen3. Insulation4. Insulation Screen5. Messenger

6. Metallic Screen

7. Oversheath

42

insulated cables cross-link power cable & cable sizing calculation

Documents

b singlecore

b single core

n bs5467 iec

s bs5467 iec

copper tapes

n tnb specification9a

s tnb specification12

ds tnb specification21