EN 50525-2-31:2011
电缆.额定电压为450/750 V(U0/U)及以下的低压节能电缆.第2-31部分:一般应用电缆.热塑性PVC绝缘单芯非铠装电缆[代替:CENELEC HD 21.3 S3]
Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 2-31: Cables for general applications - Single core non-sheathed cables with thermoplastic PVC insulation