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DC - national differences based on UL and CSA component requirements. DC% V* t9 g4 b% ~# }9 {2 Q; e
national differences may be less stringent than, equivalent to, or more stringent than, n) @" |' u: Q- A6 u- a' I1 T$ ~
component requirements in IEC 60950-1.. ^" K, k* X p6 [# B ~% C5 p
$ r5 G/ K) ~3 ODE - editorial national differences that correct typographical errors in IEC 60950-1 or7 w- y) U4 n) ?7 @
revise the terminology, but do not alter the technical intent of the requirements. This5 F# N( c$ N# b, t
notation is also used for informative statements such as the Preface.* t) `* K, d4 b. }- E, C7 f
. g* o& g) \0 g+ \- R
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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