IEC/BS Standard 8.7/15kV XLPE Insulated MV Middle Voltage Power Cable
Application
Suitable for energy networks such as power stations,distribution system etc. It usually used for installation in ducts, underground and outdoors.
Due to its robustness and high electrical stability, medium voltage cables are used in harsh environments.
Note: Red outer sheath can be prone to fading when exposed to UV rays.
Standards
Flame propagation to BS EN60332BS6622IEC 60502
Construction
Conductor: stranded plain annealed circular compacted copper conductors or aluminium conductor
Insulation: cross link polyethylene (XLPE)
Metallic Screen: individual or overall copper tape screen
Separator: copper tape with 10% overlap
Bedding: polyvinyl chloride (PVC)
Armoured: Steel Wire Armour (SWA), Steel Tape Armour (STA), Aluminium Wire Armour (AWA), Aluminium Tape Armour (ATA)
Sheath: PVC/PE outer sheath
Sheath colour: Red or Black
Electrical data
Conductor max operating temperature: 90°C
Screen max operating temperature: 80°C
Conductor max temperature during S.C: 250°C
Laying conditions at trefoil formation
Soil thermal resistivity: 120˚C. Cm/Watt
Burial depth: 0.5m
Ground temperature: 15°C
Air temperature: 25°C
Frequency: 50Hz
Data Sheet
Single-core 8.7/15 kV
| Nominal area conductor | Conductor diameter | Insulation thickness | Nominal overall diameter | Maximum overall diameter |
Approx cable weight kg/km |
Minimum bending radius | |
| mm2 | mm | mm | mm | mm |
Cu |
Al |
mm |
| 1x 16 | 8.7 | 4.5 | 21.0 | 22.0 |
636 |
536 |
308 |
| 1x 25 | 5.9 | 4.5 | 23.0 | 24.0 |
748 |
599 |
336 |
| 1x 35 | 7.0 | 4.5 | 25.0 | 26.0 |
920 |
695 |
360 |
| 1x 50 | 8.2 | 4.5 | 26.5 | 27.3 |
1106 |
700 |
380 |
| 1x 70 | 9.9 | 4.5 | 28.2 | 29.2 |
1360 |
902 |
410 |
| 1x 95 | 11.5 | 4.5 | 29.8 | 30.8 |
1579 |
981 |
430 |
| 1x120 | 12.9 | 4.5 | 31.4 | 32.4 |
1936 |
1180 |
450 |
| 1x150 | 14.2 | 4.5 | 32.7 | 33.7 |
2254 |
1310 |
470 |
| 1x185 | 16.2 | 4.5 | 34.9 | 35.9 |
2660 |
1495 |
503 |
| 1x240 | 18.2 | 4.5 | 37.1 | 38.1 |
3246 |
1735 |
530 |
| 1x300 | 21.2 | 4.5 | 40.3 | 41.3 |
3920 |
2031 |
580 |
| 1x400 | 23.4 | 4.5 | 42.5 | 43.5 |
4904 |
2385 |
610 |
| 1x500 | 27.3 | 4.5 | 46.8 | 47.8 |
6000 |
2852 |
670 |
| 1x630 | 30.5 | 4.5 | 50.2 | 51.2 |
7321 |
3354 |
717 |
Three-cores 8.7/15 kV
| Nominal area conductor | Conductor diameter | Insulation thickness | Nominal overall diameter | Maximum overall diameter |
Approximate cable weight kg/km |
Minimum bending radius | |
| mm2 | mm | mm | mm | mm |
Cu |
Al |
mm |
| 3x 16 | 4.7 | 4.5 | 39.9 | 41.0 |
1971 |
1673 |
574 |
| 3x 25 | 5.9 | 4.5 | 43.8 | 44.8 |
2347 |
1882 |
627 |
| 3x 35 | 7.0 | 4.5 | 50.0 | 51.0 |
3596 |
2946 |
710 |
| 3x 50 | 8.2 | 4.5 | 52.8 | 53.8 |
4254 |
3310 |
750 |
| 3x 70 | 9.9 | 4.5 | 56.7 | 57.7 |
5170 |
3848 |
810 |
| 3x 95 | 11.5 | 4.5 | 60.3 | 61.3 |
6195 |
4400 |
860 |
| 3x120 | 12.9 | 4.5 | 63.5 | 64.5 |
7212 |
4945 |
903 |
| 3x150 | 14.2 | 4.5 | 66.5 | 67.5 |
8338 |
5504 |
940 |
| 3x185 | 16.2 | 4.5 | 71.2 | 72.2 |
9812 |
6317 |
1010 |
| 3x240 | 18.2 | 4.5 | 75.6 | 76.6 |
11813 |
7279 |
1070 |
Armoured three-cores 8.7/15 kV
| Nominal area conductor | Conductor diameter | Insulation thickness | Nominal overall diameter | Maximum overall diameter |
Approx cable weight kg/km |
Minimum bending radius | |
| mm2 | mm | mm | mm | mm |
Cu |
Al |
mm |
| 3x 16 | 4.7 | 4.5 | 45.5 | 46.6 |
3543 |
3245 |
652 |
| 3x 25 | 5.9 | 4.5 | 49.8 | 50.9 |
4220 |
3775 |
713 |
| 3x 35 | 7.0 | 4.5 | 55.1 | 56.1 |
4975 |
4324 |
780 |
| 3x 50 | 8.2 | 4.5 | 57.9 | 58.9 |
5723 |
4779 |
820 |
| 3x 70 | 9.9 | 4.5 | 61.8 | 62.8 |
6739 |
5416 |
880 |
| 3x 95 | 11.5 | 4.5 | 65.4 | 66.4 |
7906 |
6112 |
930 |
| 3x120 | 12.9 | 4.5 | 68.8 | 69.8 |
9000 |
6733 |
980 |
| 3x150 | 14.2 | 4.5 | 71.8 | 72.8 |
10224 |
7390 |
1020 |
| 3x185 | 16.2 | 4.5 | 76.3 | 77.3 |
11770 |
8275 |
1082 |
| 3x240 | 18.2 | 4.5 | 81.0 | 82.0 |
13957 |
9423 |
1140 |