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Fw: [請問]試電筆探觸開關通電時的內部火線,為何不亮

Apr 2nd 2015, 09:59, by drkh

作者drkh (eutatosp)

看板ask

標題Fw: [請問]試電筆探觸開關通電時的內部火線,為何不亮

時間Thu Apr 2 09:59:13 2015

※ [本文轉錄自 FixMyHouse 看板 #1L7A8k77 ] 我用以下這隻試電筆探觸一個 110V 單切開關斷電時的內部火線, 試電筆的小燈有亮, 表示有電. http://img.ruten.com.tw/s2/e/c9/c2/21211017039298_189.jpg

但是, 探觸開關通電時的內部火線, 小燈卻沒有亮.為什麼? 開關內部見此圖: http://drkh.myweb.hinet.net/electricity_switch.jpg

-- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 111.241.101.35 ※ 文章網址: https://www.ptt.cc/bbs/FixMyHouse/M.1427939886.A.1C7.html ※ 轉錄者: drkh (111.241.101.35), 04/02/2015 09:59:13 ※ 編輯: drkh (111.241.101.35), 04/02/2015 10:01:37

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