IEC 60439-3:1990
低压开关设备和控制设备组合装置 第3部分:用于安装在非熟练人员可能进入使用场所的低压开关设备和控制设备组合装置的特殊要求 配电盘
Low-voltage switchgear and controlgear assemblies; part 3: particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in places where unskilled persons have access for their use; distribution boards