I.S. EN 61557-7-1999 标准详情
- 标准号:I.S. EN 61557-7-1999
- 中文标题:
- 英文标题:Electrical Safety In Low Voltage Distribution Systems Up To 1 Kv A.c. And 1,5 Kv D.c. - Equipment For Testing, Measuring Or Monitoring Of Protective Measures - Phase Sequence
- 标准类别:爱尔兰国家标准I.S.
- 发布日期: