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本帖最后由 leaphile 于 2015-3-4 23:13 编辑
* ^# y T$ }/ Acanghai 发表于 2015-3-4 18:45
" B: s" h' T* H: }3 V/ nscreening 和connect是有区别的吧,屏蔽和连接应该还是有差别的。
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protective extra-low voltage circuit
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, }0 ^) L, a5 Y2 e. eearthed circuit operating at safety extra-low voltage which is separated from other circuits by ; e7 `- e5 B8 b5 C
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- basic insulation and protective screening# W4 Z! @' y7 |
- double insulation or ) L$ |4 E* Z2 Z0 o1 z0 @
- reinforced insulation v1 j; z* _1 s8 `) _" D8 ]
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这好像是说PELV电路和其他电路之间的绝缘要求
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