meter measures the voltage between hot and neutral wires; the 电笔
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-余生渐入佳境-
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02/06/2016 postreply
18:40:23
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measure the voltage between the wire and earth ground (in theory
-foolishnhungry-
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02/06/2016 postreply
18:56:54
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谢谢, 那是否意味以前的电工搞错了?还是有特殊理由?
-余生渐入佳境-
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02/06/2016 postreply
19:07:07