标准号:GB/T 18216.4-2007 已废止
英文名称:Electrical safety in low voltage distribution systems up to 1000V a.c. and 1500V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 4: Resistance of earth connection and equipotential bonding
标准组织
CCS分类
ICS分类
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实施日期
废止日期