这个我真的不懂,所以才发出来咨询一下各位大侠!谢谢!学习了。但烦请说清楚下区别啊!!谢谢~作者: xshrmm 时间: 2012-2-5 21:27
N is zero line, only have this line, the other line can have its comparative potential, what you said the protective earth is the PE line, and the N can not connected with the PE, cause the PE is for safety....作者: jeffy123 时间: 2012-2-5 21:27