看來小編是外行在文章中講4根線有電壓差,實際上是同電壓,沒有危險的, 兩個4線一組之間才有壓差.另外文革時就有女子高壓帶電作業班,當然沒這麽高的電壓.看來電壓升高了, 但必需的設備沒跟上.
看來小編是外行在文章中講4根線有電壓差,實際上是同電壓,沒有危險的, 兩個4線一組之間才有壓差.另外文革時就有女子高壓帶電作業班,當然沒這麽高的電壓.看來電壓升高了, 但必需的設備沒跟上.
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