A .0.1s
B .0.5s
C .1s
D .0.3s
[单选题]开关箱内的漏电保护器额定漏电动作电流应不小于()MA,额定漏电动作时间应小于()。A .30MA,0.1sB .50MA,0.12sC .75mA,0.1s
[单选题]正常条件下,开关箱内漏电保护器额定漏电动作电流及漏电动作时间为:( )。A.30mA,0.01SB.50mA,0.1SC.30mA,0.1SD.50m
[单选题]开关箱中漏电保护器的额定漏电动作时间为()。A.≥0.1SB.≤0.1sC.0.2sD.≤0.2s
[单选题]开关箱中漏电保护器的额定漏电动作时间为()。A.≥0.1SB.≤0.1sC.0.2sD.≤0.2s
[填空题] 开关箱中漏电保护器的额定漏电动作电流不应大于(),额定漏电动作时间不应大于()。
[单选题]开关箱中漏电保护器的额定漏电动作电流不应大于( ),额定漏电动作时间不应大于( )。A.30mA,0.5AB.20mA,0.5AC.20mA,0.1A
[单选题]开关箱中漏电保护器的额定漏电动作电流不应大于( ),额定漏电动作时间不应大于( )。A.30mA,0.5sB.20mA,0.5sC.20mA,0.1s
[单选题]开关箱中的漏电保护器的额定漏电动作电流不应大于(),额定漏电动作时间不应大于()。A . 40mA1sB . 30mA0.1sC . 50mA0.2
[单选题]开关箱中漏电保护器的额定漏电动作电流不应大于(),额定漏电动作时间不应大于0.1sA . 5mAB . 30mAC . 75mAD . 100mA
[单选题]开关箱中漏电保护器的额定漏电动作电流不得大于30mA,额定漏电动作时间( )。A.不应大于0.1sB.大于0.1sC.小于0.1sD.不应小于0.1