sky0805 发表于 2013-12-3 13:14 & W9 L u6 a4 r D0 k
Class I has protect earthing... / p9 n3 H) c5 l1 o
class II it does not.
热爱学习 发表于 2016-4-2 22:54 ; U4 v" V+ {8 m+ i& e
没错,5.1.7节是说超过3.5mA的接触电流,但并不是说只有超过3.5mA才用电流表替换人体网络啊,再说3.5mA的 ...
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