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好吧问答库 > 小区内有人家没电,有人家电压特高是怎么回事？

小区内有人家没电,有人家电压特高是怎么回事？

小区内有人家没电,有人家电压特高是怎么回事？

2025年03月16日 06:22

有1个网友回答

网友（1）：

某相单相短路，且中线断线。造成单相短路相没电，非故障相电压升高至线电压。如A相接N，且N在电源处断线，则A相用户家没电，B相和C相用户家里电压由220升至380V（即BN电压变为BA电压，CN电压变为CA电压）。

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