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夜雨無(wú)聲
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樓主  發(fā)表于: 2014-06-03 10:57
請教大家，一個(gè)6×0.25mm2的電纜（雙絞屏蔽線(xiàn)），如何判斷出單根信號線(xiàn)（0.25mm2）內部虛斷，如何判斷出電纜內部單根導線(xiàn)絕緣層磨損后和屏蔽層虛接現象。有沒(méi)有儀器或者示波器觀(guān)察出來(lái)
john42tw
級別: 網(wǎng)絡(luò )英雄
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1樓  發(fā)表于: 2014-06-03 11:34
1.萬(wàn)用表
2.絕緣電阻計
3.有疑問(wèn) ---> 換掉它

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