A.≥2.5m B.>2m C.2m D.1.8m
A.YHS型橡皮護(hù)套銅芯多股軟電纜B.絕緣銅線C.絕緣鋁線D.絕緣導(dǎo)線和結(jié)構(gòu)鋼筋(作為地線)
A.3m B.5m C.10m D.15m