接地銅棒無法防漏電 - 居家修繕
By Kama
at 2021-04-07T01:27
at 2021-04-07T01:27
Table of Contents
: → zi98btcc: 自家民宅的接地銅棒幹嘛重複做一次系統接地? 04/02 15:16
: 推 allforyour2: 因為台電的接地也會失效,要做雙重甚至三重防護= = 04/02 19:38
除了買保險的觀念之外
中性線多重接地可以再降低其接地電阻值
雖然法規規定中性線的接地電阻要在10歐姆以下
不過台電若要求每個來申請電錶的用戶都再打一支地棒
那可能把中性線的接地電阻壓在5歐姆以下甚至更低
因此就算有些故障電流流經大地回到電源處
中性線仍可保持接近0V (大地為0)
因此只要中性線沒有鬆脫
任何時候去摸都不會被電
摸中性線會被電到
我第一個考量的就是鬆脫了
若沒鬆脫我才會考慮其他更極端的情況
--
: 推 allforyour2: 因為台電的接地也會失效,要做雙重甚至三重防護= = 04/02 19:38
除了買保險的觀念之外
中性線多重接地可以再降低其接地電阻值
雖然法規規定中性線的接地電阻要在10歐姆以下
不過台電若要求每個來申請電錶的用戶都再打一支地棒
那可能把中性線的接地電阻壓在5歐姆以下甚至更低
因此就算有些故障電流流經大地回到電源處
中性線仍可保持接近0V (大地為0)
因此只要中性線沒有鬆脫
任何時候去摸都不會被電
摸中性線會被電到
我第一個考量的就是鬆脫了
若沒鬆脫我才會考慮其他更極端的情況
--
Tags:
居家修繕
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