GB 7251.3-

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 / IEC 60439-3:2001

低压成套开关设备和控制设备第3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 /IEC 60439-3:2001 代替

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