High Voltage Cables

    High Voltage Cables

290/500kV XLPE Insulated, PE Sheathed High Voltage Power Cables

Application

These single core cables are designed for distribution of electrical power with nominal voltage 290/500kV. 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 62067

Construction

290/500kV 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 The metallic layer may be applied over the core assembly collectively. The metallic screen shall consist of either copper tapes or a concentric layer of copper wires or a combination of tapes and wires.
Separation Sheath Aluminum Tape sheath.
Outer Sheath PE

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
800 35.0 170 126.0 20.0 15.0
1000(RM) 33.0 170 126.0 21.0 15.0
1000(RMS) 32.0 170 128.0 22.0 16.0
1200 31.0 170 130.0 24.0 16.0
1400 31.0 170 133.0 26.0 17.0
1600 31.0 170 136.0 28.0 18.0
1800 31.0 170 139.0 30.0 19.0
2000 31.0 170 143.0 33.0 20.0
2500 31.0 170 150.0 38.0 23.0

Electrical Data

Nom. Cross-Section Area D C Resistance @20°C A C Resistance @90°C Capacitance per core Inductance Current Ratings/PowerRatings (continuous load)
Cu conductor Al conductor
Cu Al Cu Al 1 circuit 2 circuits 1 circuit 2 circuits
mm² Ω/km Ω/km Ω/km Ω/km μF/km mH/km A/MVA A/MVA
              trefoil installation
800 0.0221 0.0367 0.0317 0.0500 0.124 0.45 628/544 498/431 537/465 427/370
1000(RM) 0.0176 0.0291 0.0276 0.0409 0.137 0.43 661/572 520/450 577/500 455/394
              flat installation
1000(RMS) 0.0176 0.0291 0.0232 0.0375 0.149 0.56 907/785 770/667 725/628 615/533
1200 0.0151 0.0247 0.0201 0.0319 0.159 0.55 968/838 818/708 782/677 661/572
1400 0.0129 0.0212 0.0175 0.0275 0.167 0.53 1031/896 868/752 838/726 707/612
1600 0.0113 0.0186 0.0156 0.0240 0.174 0.52 1085/896 912/790 893/773 751/650
1800 0.0101 0.0165 0.0142 0.0213 0.180 0.51 1124/973 942/816 939/813 787/682
2000 0.0090 0.0149 0.0129 0.0193 0.187 0.50 1159/1004 969/839 976/845 816/707
2500 0.0072 0.0119 0.0109 0.0156 0.202 0.47 1226/1062 1019/882 1063/921 884/766