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DC - national differences based on UL and CSA component requirements. DC
8 X4 K# H" A1 j. E3 anational differences may be less stringent than, equivalent to, or more stringent than& k. j/ H3 @8 E* w/ U
component requirements in IEC 60950-1.6 g/ _. b1 W) j( |
* d& S. O! r5 E" U+ r; t, Z VDE - editorial national differences that correct typographical errors in IEC 60950-1 or+ p( E6 w% f+ w) w5 h
revise the terminology, but do not alter the technical intent of the requirements. This4 A' ^" w) }' |. O1 P
notation is also used for informative statements such as the Preface.
" q& Y) P4 b, |5 ?8 W1 b g: Z# ]- j1 N5 n% ?1 @/ s
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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