8.7/15KV 3x240mm2 AL/SC/XLPE/SC/CTS/PVC Underground Cable Power Cable Unarmored IEC60502-2
8.7/15kV cable is common voltage in accordance with IEC 60502-2. Similar to all other voltages, it includes a copper wire screen and/or a layer or copper tape for equalising purposes. These screens provide a route to earth in the event of a fault current or insulation failure, taking a substantial proportion of the total fault current and providing a return path for the cable neutral. Where it has been earthed at both ends of the cable is can also provide EMC electromagnetic protection.
The structure is as below
1. conductor
2. conductor screen
3. insulation
4. insulation screen
5. metallic screen: copper tape only, or copper wire+copper tape
6. inner sheath(only when it is armored)
7. armor(only when it is armored)
8. outer sheath
STANDARD:
GB/12706.2, IEC60502-2, BS 6622, VDE 0276, HD 620 S1, NFC 33-226,etc.
Cable technical data
Normal cross sectional area(mm²) | Appro conductor dia(mm) | Nom insulation thickness (mm) | Copper tape thickness (mm) | Appro. Insulation dia(mm) | Nom sheath thickness (mm) | Appro overall diameter (mm) | Appro weight (kg/km) |
240 | 18.7 | 4.5 | 0.1 | 29.1 | 2 | 75 | 6500 |
8.7/15KV 3x240mm2 AL/SC/XLPE/SC/CTS/PVC Underground Cable Power Cable Unarmored IEC60502-2
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