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家庭电路交流220伏零线为什么会带电？零线在什么情况下会带电？
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![哈尔滨市气象台发布道路冰雪红色预警[I级/特别严重]](http://p3-sign.bdxiguaimg.com/tos-cn-p-0015/ow6BmZGvLpsbiOLen748ACaBfuAIQEDeAOzdOI~tplv-pk90l89vgd-fglass:864:486:90.jpeg?appId=32&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=101_middle_image&imageType=list&isImmersiveScene=0&is_stream=0&lk3s=9d3f5bff&logId=20250121112109160918C5D8278E3A1F52&requestFrom=101&x-expires=1768965669&x-signature=XngOZWUhzUJVI%2BhvGhtx5rsfwto%3D)
