gfci上的test、reset按钮按几下听有无响声,有响声的话看来电没。如果您有那种非接触的试电笔就很容易找到问题如果真有问题的话
gfci上的test、reset按钮按几下听有无响声,有响声的话看来电没。如果您有那种非接触的试电笔就很容易找到问题如果真有问题的话
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