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关于电表和保险丝的问题
更新时间: 2020-08-15 00:00:00  

1、电流没有超过20A空气开关是不会跳的,保险丝的熔断电流比空气开关的小所以保险丝先熔断。2、空气开关。3、保险丝五金商店有买,现在很少用保险丝的那种闸刀开关,家庭用保险丝建议在16安培左右。

关键词: 关于 电表 保险丝 问题

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