Electrical safety in low voltage distribution systems up to 1 000 V a.c.and 1 500 V d.c.—Equipment for testing, measuring or monitoring of protective measures—Part 12:Performances measuring and monitoring devices (PMD)
IDT IEC 61557-12:2007
全国电工仪器仪表标准化技术委员会(SAC/TC 104)
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