UL 1053 Ed. 6 标准详情
- 标准号:UL 1053 Ed. 6
- 中文标题:
- 英文标题:Ground-fault Sensing And Relaying Equipment
- 标准类别:美国保险商实验室UL
- 发布日期:
Deals with ground-fault current sensing devices, relaying equipment, or combinations of both, and equivalent protection equipment used in locations that will operate to cause a disconnecting device to open ungrounded conductors at predetermined groun
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