... between conductor and earth or metallic screen for which the cable is designed; * U is the rated power frequency voltage ... between conductors for which the cable is designed; * Um is the maximum value of the " ... , 25mm2, 35mm2, 50mm2, 70mm2, 95mm2, 120mm2, 150mm2, 185mm2, 240mm2, 300mm2, 400mm2, 500mm2, 630mm2, 800mm2 Operating characteristic:Tating voltageU./U: 0.6 ...