EN 50525-3-31:2011
电缆.额定电压为450/750 V(U0/U)及以下的低压节能电缆.第3-31部分:特殊防火性电缆.无卤热塑性绝缘低烟雾排放单芯非铠装电缆
Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 3-31: Cables with special fire performance - Single core non-sheathed cables with halogen-free thermoplastic insulation, and low emission of smoke