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DC - national differences based on UL and CSA component requirements. DC* K2 X7 ^0 s# t$ j- b2 C
national differences may be less stringent than, equivalent to, or more stringent than: i" N2 _. W& R
component requirements in IEC 60950-1.( n7 g. R( i3 e$ N
& I1 Y8 |5 f7 D6 V6 }% qDE - editorial national differences that correct typographical errors in IEC 60950-1 or
" f3 p4 B0 r" |0 ^& o7 u, lrevise the terminology, but do not alter the technical intent of the requirements. This
3 Z, F# g4 {( h Snotation is also used for informative statements such as the Preface.
" S0 l# S" ~; R, J8 w6 _' }( W8 w# D7 v
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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