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本帖最后由 leaphile 于 2015-3-4 23:13 编辑
& O4 O/ ]' c6 N5 h, X( Ncanghai 发表于 2015-3-4 18:45 8 a9 C; U B: L( v; V
screening 和connect是有区别的吧,屏蔽和连接应该还是有差别的。 / G) L) }* f5 G& A
3.4.4
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protective extra-low voltage circuit
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earthed circuit operating at safety extra-low voltage which is separated from other circuits by o! c! y. Z- N# k3 U# A
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- basic insulation and protective screening7 ^3 E* M8 |! Z7 I ]0 I6 H
- double insulation or 4 U! u9 T0 J: a6 g! [# C9 }: }
- reinforced insulation8 m, `) e5 H: m7 f
% a$ u3 C- o: |9 i3 L( y7 d这好像是说PELV电路和其他电路之间的绝缘要求
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