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你可以参考UL6950-1标准, 其标准中会全部列出和IEC标准的差异, 以下是对标准中差异的说明:
$ H# v3 } {1 ]/ _1 dD1 – national differences based on national regulatory requirements which result in
6 i, T; k6 X& o: c' C. |equivalent or more stringent requirements than in IEC 60950-1.7 J& ?" g2 H$ o
D2 – national differences based on other than national regulatory requirements which9 b U7 W5 K- Q/ G3 ?
result in equivalent or more stringent requirements than in IEC 60950-1.
! \6 R$ w8 u1 }% Y. N8 NDI – national differences based on IEC final draft international standards (FDIS). DI
1 G; @& Z- w S3 \- S; xnational differences may be less stringent than, equivalent to, or more stringent than: l2 I1 f+ I( t4 W, o) [: N, Q# p/ B, q
requirements in IEC 60950-1.* S; k& `* I: _0 ]
DC – national differences based on UL and CSA component requirements. DC
- C0 d5 e' [+ Z% u0 M' J) Q( _+ z" k Mnational differences may be less stringent than, equivalent to, or more stringent than/ p- }5 d! ?6 u$ c0 Z6 ~2 s/ O
component requirements in IEC 60950-1.6 m% }- t3 N0 H& E; ]2 p! f( c
D3 – national differences based on bi-national requirements which result in less" n& ~. w$ _3 v8 T& U
stringent requirements than in IEC 60950-1.
5 g0 R8 z6 m1 g! u' L3 [2 c$ yDE – editorial national differences that correct typographical errors in IEC 60950-1 or
5 ]4 w( \% j( ~2 w; w4 J lrevise the terminology, but do not alter the technical intent of the requirements. This
p+ |2 O u( V8 Y& m* K* D9 H5 d$ P" Jnotation is also used for informative statements such as the Preface. |
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发表于 2009-12-14 10:24
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发表于 2009-12-14 10:56