A.36V
B.24V
C.12V
D.6V
[单选题]在潮湿场所施工,照明电源电压不应大于()。A.36VB.24VC.12VD.6V
[单选题]在遂道内施工,照明电源电压不应大于()A.36VB.24VC.12VD.6V
[单选题]在隧道内施工,照明电源电压不应大于()。A .36VB .24VC .12VD .6V
[单选题]在遂道内施工,照明电源电压不应大于()。A.36VB.24VC.12VD.6V
[单选题]在隧道内施工,照明电源电压不应大于()。A.36VB.24VC.12VD.6V
[单选题]在遂道内施工,照明电源电压不应大于()。A.36VB.24VC.12VD.6V
[单选题]在特别潮湿的场所,导电良好的地面使用手持照明灯具等,照明电源电压不应大于()。A.12VB.24VC.36VD.42V
[单选题]在金属容器内施工,照明电源电压不应大于()。A.36VB.24VC.12VD.6V
[单选题]在金属容器内施工,照明电源电压不应大于()。A.36VB.24VC.12VD.6V
[单选题]在金属容器内施工,照明电源电压不应大于()。A.36VB.24VC.12VD.6V