标准号:DIN EN 61557-2-1998 已废止
英文名称:Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 2: Insulation resistance (IEC 61557-2:1997); German version EN 61557-2:1997
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