Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U<(Index)0>/U) - Part 2-21: Cables for general applications - Flexible cables with crosslinked elastomeric insulation; German version EN 50525-2-21:2011
电缆.额定电压450/750V(U<(指数)0>/U)及以下的低压能源电缆.第2-21部分:一般应用电缆.交联弹性绝缘软电缆;德文版EN 50525-2-21:2011