A.0.3 B.0.35 C.0.4 D.0.7
A.裝絕緣板 B.拉開(kāi)隔離開(kāi)關(guān) C.裝設(shè)遮欄裝設(shè)遮欄 D.懸掛標(biāo)示牌和裝設(shè)遮欄