BS EN 50525-3-21-2011 电缆.额定电压为450/750 V (U0/U)及以下的低压能源电缆.有特殊防火性能的电缆.交联绝缘无卤,低烟软电缆
Electric cables. Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U). Cables with special fire performance. Flexible cables with halogen-free crosslinked insulation, and low emission of smoke