電源開關 關掉還有電壓 - 家電

By Edwina
at 2017-09-23T00:54
at 2017-09-23T00:54
Table of Contents
https://i.imgur.com/MUtyFPa.jpg
https://i.imgur.com/TSKt7TF.jpg
https://i.imgur.com/rAx0MbG.jpg
想加裝一個燈具,於是打開天花板蓋子有這些線
打開開關量測了最長的兩條,白色與藍色的電位差是112伏特
關掉後量測還有約30伏特,請問這樣是正常的嗎?
還是要從其他線去接呢?
--
https://i.imgur.com/TSKt7TF.jpg
https://i.imgur.com/rAx0MbG.jpg
想加裝一個燈具,於是打開天花板蓋子有這些線
打開開關量測了最長的兩條,白色與藍色的電位差是112伏特
關掉後量測還有約30伏特,請問這樣是正常的嗎?
還是要從其他線去接呢?
--
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家電
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