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DC - national differences based on UL and CSA component requirements. DC( z8 i; @- @: B1 B3 {9 Y
national differences may be less stringent than, equivalent to, or more stringent than
4 l: K+ Y( E+ ]3 k' s7 P4 k: ucomponent requirements in IEC 60950-1.
: g. z& _! ?- h1 r9 E& h( R! ]/ Q+ c) T0 ~" A/ m+ d
DE - editorial national differences that correct typographical errors in IEC 60950-1 or
" q. `/ z# _) ?' [8 Crevise the terminology, but do not alter the technical intent of the requirements. This
2 m0 }5 u' y& Q1 Q7 C, Xnotation is also used for informative statements such as the Preface.
# h Q0 S! a( r
) ?4 L" c0 ]: D* G$ _: x0 I6 k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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