@oflyhigh: 我有试电笔，可以用来判断开关是否切断了火线 | Ecency

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2025-10-20 09:31

我有试电笔，可以用来判断开关是否切断了火线

在无法确定线路是否有电的情况下，强烈建议拉闸后操作。

2025-10-20 09:31

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@oflyhigh: 我有试电笔，可以用来判断开关是否切断了火线 | Ecency