A.電器開(kāi)關(guān)上鎖B.電纜終端或插頭上鎖C.拆開(kāi)或斷開(kāi)電纜D.物理隔離或割開(kāi)E.掛警示標(biāo)志、專人監(jiān)護(hù)
A.鐵片B.銅片C.鋁片D.合金E.不銹鋼
A.T1801B.T1802C.T1803D.T1804