NEMA SG 4-2009 标准详情
- 标准号:NEMA SG 4-2009
- 中文标题:交流电高压线路断路器
- 英文标题:Alternating-Current High-Voltage Circuit Breakers
- 标准类别:美国电气制造商协会NEMA
- 发布日期:2009-01-01
Comprehends- - All ratings for outdoor circuit breakers above 1000 volts for alternating-current service. Circuit breakers for service in metal-enclosed or metal-clad enclosures and automatic circuit reclosers are excluded. - Attachments for these ci
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