看来小编是外行在文章中讲4根线有电压差,实际上是同电压,没有危险的, 两个4线一组之间才有压差.另外文革时就有女子高压带电作业班,当然没这么高的电压.看来电压升高了, 但必需的设备没跟上.
看来小编是外行在文章中讲4根线有电压差,实际上是同电压,没有危险的, 两个4线一组之间才有压差.另外文革时就有女子高压带电作业班,当然没这么高的电压.看来电压升高了, 但必需的设备没跟上.
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