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有三用電表嗎或是驗電筆? 自已接之前先確定好,正常來說紅白之間電壓為110,綠白之間為0。有一個單切沒用到就先不理它,插座就是紅白一組,單切要接火線跟綠色控制線一組,雙切就兩條黑色控制線跟火線一組,插對孔號就可以了。
先確定廁所燈燈座2條線顏色...及樓梯燈燈座2條線顏色...紅色火線及中性線....紅色火線要經過2個燈的開關...這樣就可以了...燈座2條線三用電表測量時..就是要AC110V[燈開關開時]....紅色火線[要用驗電筆量]..不要燈座2條電線.都是火線就對了.只要1條火線..另一條是中性線...