燈測試鍵 的英文怎麼說
中文拼音 [dēngcèshìjiàn]
燈測試鍵
英文
lamp testing key-
By pressiong the 2 buttons, check the side by side lines one by one. if the light is on, it is phase line, otherwise it is the null line, in case there is a break in the line, move until hte light is off. that is the break point
按兩鍵)以鋪好的三芯或四芯電纜或電線,可將另一端全部良好接地,再如圖分別檢測燈亮則通,此法適合樓房裝修布線,將主線接地,邊安裝邊測試。
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