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DC - national differences based on UL and CSA component requirements. DC* t# H6 D( e: D: f
national differences may be less stringent than, equivalent to, or more stringent than
0 g# W% A# E9 T8 Gcomponent requirements in IEC 60950-1.
5 |" d' k5 l( i: i: J9 h' ^. ^: v
% O: l7 q: l% t; yDE - editorial national differences that correct typographical errors in IEC 60950-1 or) j% l" I) a- x& X3 T
revise the terminology, but do not alter the technical intent of the requirements. This
. r5 R H; e. D; f/ O" snotation is also used for informative statements such as the Preface.
+ e5 D9 D6 l! d6 F# m, @
/ l2 ^7 [2 W A: l x7 x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. |
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