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发表于 2013-5-21 10:10
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本帖最后由 Safer 于 2013-5-21 10:14 编辑
3 }$ H$ F! i: i( G4 x2 xxidua-10 发表于 2013-5-20 17:45 , w+ N$ m8 d# s
個人以為如下 2 M3 T$ }( s, D9 y Y; ?- D6 ?5 u
4943,基于IEC60950翻译的,关于这部份,IEC的原文如下:
, h4 g8 K; F( [) ~% l2.7.1 Basic requirements
$ ^8 \' Y* U! }" G& L5 A6 xProtection in PRIMARY CIRCUITS against overcurrents, short-circuits and earth faults shall be
U+ Z; M1 ]% G8 s3 }0 M( t' A/ sprovided, either as an integral part of the equipment or as part of the building installation., X8 p. X5 T( O& X/ T" ]3 a' e* ^
( [7 C9 d8 |, b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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