... .2)-6/10(12)-8.7/15(17.5)-12/20(24)-18/30(36)-21/35(40 ... .5)KV4). Voltage: 0.6/1kV, 1.8/3kV, ... "highest system voltage" for which the equipment maybe used.5). Application: For laying indoors, in tunnel or cable trench ... 4mm2, 6mm2, 10mm2, 16mm2, 25mm2, 35mm2, 50mm2, 70mm2, 95mm2, 120mm2, 150mm2, 185mm2, 240mm2, 300mm2, 400mm2, 500mm2, 630mm2, 800mm2 xlpe insulated power cables