|
DC - national differences based on UL and CSA component requirements. DC
+ l& S" }, c% x* ^national differences may be less stringent than, equivalent to, or more stringent than
3 F1 R6 N* p7 q! T3 Hcomponent requirements in IEC 60950-1.# x) |0 P. S3 I. V
; c, {1 ^% S5 | b$ ~% P* \DE - editorial national differences that correct typographical errors in IEC 60950-1 or; d4 Y" ]" f s" B1 d$ i4 Z1 k' Y
revise the terminology, but do not alter the technical intent of the requirements. This/ t1 J9 H1 s6 U8 N: J
notation is also used for informative statements such as the Preface.
7 @+ O/ R6 K1 G6 g1 R
* a( ^! q( g" {+ X3 L2 t4 [. W+ y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. |
|