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樓主  發(fā)表于: 2016-08-18 13:20
大家都知道,在一般的電氣控制柜中都有噪聲濾波器;近期發(fā)現工作崗位中的配電柜中,有刺耳異響,求助是供電線(xiàn)的問(wèn)題,還是阻抗,電容的原因
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1樓  發(fā)表于: 2016-08-19 11:07
引用
引用第6樓心情亂于2016-08-18 23:35發(fā)表的  :
一般是接觸器,繼電器等線(xiàn)圈振動(dòng)造成噪音。

一定是。。
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