|
|
DC - national differences based on UL and CSA component requirements. DC; J, O) u. I: |8 o
national differences may be less stringent than, equivalent to, or more stringent than1 u' m3 k3 T. }( N2 t
component requirements in IEC 60950-1.# k5 @+ O$ D/ d8 w+ f0 T9 ?+ ]2 Y
8 c( S) g. \6 ~+ z. ^
DE - editorial national differences that correct typographical errors in IEC 60950-1 or
$ U* R7 M2 j& S: w0 Hrevise the terminology, but do not alter the technical intent of the requirements. This, w% F8 ^* W2 Y6 X4 {9 F# `
notation is also used for informative statements such as the Preface.
& X/ y* p$ E! m. P% D7 B; L6 ]* I( r) n& A
其實還有很多,這些定義在UL標準非常前面的General的地方有定義. |
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2010-10-20 18:03
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
楼主