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汗, 下了一堆原来是这个问题, 图片太误导了,这个没办法现在标准要求这样.3 C. H3 f3 ?" z, Q* t
3类的plug 不能跟高压的混用, 是因为3类的pin脚有可能插入到标准的2类母差里面.' B& U I8 T9 k I
Plugs and socket-outlets in SELV systems shall comply with the following requirements: – plugs shall not be able to enter socket-outlets of other voltage systems; – socket-outlets shall not admit plugs of other voltage systems; – plugs and socket-outlets in SELV systems shall not have a protective conductor contact
! D ^: I* K4 L" W6 @4.3.31 以及5.2.14 都有描述.# Z. e! g' g8 Y9 b; B( g
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