A.面對插座板,右孔與零線連接,左孔與相線連接,上孔與接地線連接 B.面對插座板,右孔與相線連接,左孔與接地線連接,上孔與零線連接 C.面對插座板,右孔與接地線連接,左孔與零線連接,上孔與相線連接 D.面對插座板,右孔與相線連接,左孔與零線連接,上孔與接地線連接
A.冷鍍鋅 B.熱鍍鋅 C.刷漆 D.鍍塑
A.2.4m B.2.5m C.2.8m D.3.0m