... armored (STA) *Sheath: Polyvinyl chloride (PVC)3). The rated voltages U0/U(Um) of the cables considered in this standard are as ... follows: U0/U(Um) =3.6/6(7.2)-6 ... (40.5)KV4). Voltage: 0.6/1kV, 1.8/3kV, 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV, 18 ... , 150mm2, 185mm2, 240mm2, 300mm2, 400mm2, 500mm2, 630mm2, 800mm2 xlpe insulated power cables