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liu1980
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樓主  發(fā)表于: 2013-06-21 21:06
如題，書(shū)本上一般要求對地電阻、相間電阻0.5-1兆歐，就可使用，咱們領(lǐng)導卻要求500兆歐以上， 后來(lái)又改為200兆歐以上，達不到的不準收貨，頭大啊。
1054550600
海納百川
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1樓  發(fā)表于: 2013-06-22 08:20
引用
引用樓主liu1980于2013-06-21 21:06發(fā)表的 修好后的馬達，測量對地電阻、相間電阻要多少以上才收貨呢？ :
如題，書(shū)本上一般要求對地電阻、相間電阻0.5-1兆歐，就可使用，咱們領(lǐng)導卻要求500兆歐以上， 后來(lái)又改為200兆歐以上，達不到的不準收貨，頭大啊。

實(shí)際中；對地電阻、相間電阻0.5-1兆歐就可以了；像氣候干燥剛剛修理的電動(dòng)機一般在200兆歐以上；如果氣候潮濕；電動(dòng)機放在倉庫2天；那么對地電阻可能會(huì )小于0.5.
真誠到永遠

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