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如何选择断路器

更新时间: 2020-09-16 00:00:00     

由线路的计算电流来决定断路器的额定电流;断路器的短路整定电流应躲过线路的正常工作启动电流;按线路的最大短路电流来校验低压断路器的分断能力;按照线路的最小短路电流来校验断路器动作的灵敏性,线路最小短路电流应不小于断路器短路整定电流的1、3倍;按照线路上的短路冲击电流来校验断路器的额定短路接通能力,即后者应大于前者。

关键词: 如何 选择 断路器

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