A.中性點(diǎn)絕緣系統(tǒng)B.經(jīng)消弧接地的系統(tǒng)C.中性點(diǎn)接地系統(tǒng)D.中性點(diǎn)不接地系統(tǒng)
A.分類B.分工C.監(jiān)督D.配合
A.直接進(jìn)戶B.經(jīng)低壓隔離開關(guān)進(jìn)戶C.經(jīng)進(jìn)戶熔斷器進(jìn)戶D.熔斷器隔離轉(zhuǎn)接電纜后進(jìn)戶