High Voltage Cables

High Voltage Cables

 

64/110kV XLPE Insulated,PE Sheathed High Voltage Power Cables

Application

These single core cables are designed for distribution of electrical power with nominal voltage 64/110kV. They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water as well as for installation on cable trays for industries, switchboards and power stations.

Standard

IEC 60840

Construction

64/110kV XLPE Insulated,PE Sheathed High Voltage Power Cables

Conductor The cable conductors can be made of copper or aluminium, depending on customer’s preference or current carrying capacity. Large size solid conductors are made of aluminium. Available constructions including: round solid conductors up to 2000mm² (RE); circular stranded compacted conductors up to 1200mm² (RM); circular conductors with shaped wires up to 2000mm² (RM, Keystone conductors); segmental conductors up to 2500 mm² (RMS, Milliken conductors); oval shaped stranded compacted conductors up to 800mm² for external gas pressure cables (OM).
Conductor Screen Extruded layer of semi-conducting cross-linkable compound is applied over the conductor and shall cover the surface completely.
Insulation Insulation is of cross-linked polyethylene compound XLPE.
Insulaton Screen Extruded layer of semi-conducting cross-linkable compound is applied over the insulation.
Metallic Layer Copper wire screen.
Moisture Barrier For radial moisture barrier a coated aluminium foil is longitudinally applied. The combination with the polyethlene oversheath is called aluminium polyethlene laminated (APL) sheath. This solution provides high short circuit capability and watertightness combined with lowest weight and smallest dimensions. For all XLPE insulated high voltage cables, the space between cable core and water barrier is made longitudinally watertight.
Outer Sheath Extruded polyethylene.

 

Dimensional Data

 

Nom. Cross-Section Area Nom. Insulation Thickness Copper Wire Screen Area Approx. Overall Diameter Approx. Weight
CU AL
mm² mm mm² mm kg/m
240 15.0 95 65.0 5.6 4.1
300 15.0 95 67.0 6.3 4.5
400 15.0 95 71.0 7.2 5.0
500 14.0 95 72.0 8.2 5.3
630 14.0 95 76.0 9.7 5.9
800 14.0 95 80.0 11.6 6.7
1000 14.0 95 86.0 14.0 7.4
1200 14.0 95 92.0 16.0 8.7
1600 14.0 95 98.0 19.9 10.4
2000 14.0 95 106.0 24.2 12.0
2500 14.0 95 114.0 30.0 14.3

 

Electrical Data

 

Nom. Cross-Section Area D C Resistance @20°C A C Resistance @90°C Capaci
tance per core
Inductance Continuous Current Rating for Single Circuit (in air)
Cu conductor Al conductor
Cu Al Cu Al Trefoil Flat Trefoil Flat
mm² Ω/km Ω/km Ω/km Ω/km μF/km mH/km A A
240 0.0754 0.125 0.0973 0.161 0.141 0.442 576 715 449 557
300 0.0601 0.100 0.0781 0.129 0.152 0.424 658 820 515 642
400 0.0470 0.0778 0.0618 0.101 0.165 0.407 762 955 601 752
500 0.0366 0.0605 0.0492 0.0791 0.188 0.392 877 1108 697 878
630 0.0283 0.0469 0.0393 0.0622 0.206 0.376 1012 1292 807 1023
800 0.0221 0.0367 0.0326 0.0500 0.224 0.363 1149 1483 931 1189
1000 0.0176 0.0291 0.0232 0.0375 0.251 0.349 1292 1688 1060 1364
1200 0.0151 0.0247 0.0201 0.0319 0.275 0.340 1542 1974 1226 1558
1600 0.0113 0.0186 0.0156 0.0240 0.304 0.328 1741 2251 1432 1834
2000 0.0090 0.0149 0.0129 0.0193 0.336 0.318 1942 2536 1619 2085
2500 0.0072 0.0119 0.0109 0.0156 0.372 0.309 2149 2836 1815 2353