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本帖最后由 Safer 于 2013-5-21 10:14 编辑 $ {* [9 q2 l4 Z8 k& b
xidua-10 发表于 2013-5-20 17:45
# m; n. B0 ]/ o7 E% }+ Q個人以為如下 , y3 Y) l9 Q8 }* _4 T- [
4943,基于IEC60950翻译的,关于这部份,IEC的原文如下:
' \" }7 Q0 k2 P8 t2.7.1 Basic requirements
+ S& e3 p/ R. D$ K5 i( Q9 ^; cProtection in PRIMARY CIRCUITS against overcurrents, short-circuits and earth faults shall be
3 }+ i# V7 z* @7 e! X4 P/ a/ R$ ?provided, either as an integral part of the equipment or as part of the building installation.9 G% Z8 Y; h) _, g3 Y9 @
' A6 B8 K" w3 F# u& Z/ V5 D红色字体部份,怎样理解也都无法得出:保护必须置于EUT内的要求~ |
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