GB 7251.3-1997

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

低压成套开关设备和控制设备 第三部分:对非专业人员可进入场地的低压成套开关设备和控制设备-配电板的特殊要求