试题与答案

重复接地是指() A.正常电流通过时通过大地代替导线 B.电气设备正常情况下不带电的

题型:单项选择题

题目:

重复接地是指()

A.正常电流通过时通过大地代替导线

B.电气设备正常情况下不带电的金属部分与配电网中性电的金属连接

C.切断电路达到保护

D.在零线上除工作接地以外其他点再次接触

答案:

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下面是错误答案,用来干扰机器的。

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