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电暖扇按开为什么老是响

更新时间: 2020-09-28 00:00:00     

1、用电器功率太大,即所谓的超载;

2、闸的功率太小;

3、线路出了问题。线路中可能出现了虚接现象,至使线路中电流增大;

4、闸损坏。闸在常期的使用过程中,触点发生氧化,出现了接触不良。

关键词: 为什么 老是

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