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DC - national differences based on UL and CSA component requirements. DC, F: y) A T& u" Y( E/ E7 _5 N* N
national differences may be less stringent than, equivalent to, or more stringent than
$ l8 }9 l( M2 M" M+ I3 hcomponent requirements in IEC 60950-1." B, h. z/ \. Q
: A' P# I V3 LDE - editorial national differences that correct typographical errors in IEC 60950-1 or
3 @2 ]! ?4 l6 i/ d Z3 vrevise the terminology, but do not alter the technical intent of the requirements. This W/ N9 A* v7 c4 o: ?! u2 r8 d
notation is also used for informative statements such as the Preface.: f2 u( P! x/ l9 j$ w# Z1 C
9 g4 a) r! n, G2 [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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