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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:4 \( t# T/ T4 Y& F) Y0 z
D1 – national differences based on national regulatory requirements which result in! S! |$ M* f; M2 N! Y$ d3 q
equivalent or more stringent requirements than in IEC 60950-1.) ~& T+ m* p" m" t; s. \3 N. w9 Q# A6 O. {
D2 – national differences based on other than national regulatory requirements which# i- s5 z" y. v, X$ f5 H, g
result in equivalent or more stringent requirements than in IEC 60950-1.( g0 R# v7 }8 M( I: b
DI – national differences based on IEC final draft international standards (FDIS). DI
+ P$ o1 p V' [: ^national differences may be less stringent than, equivalent to, or more stringent than
9 }# b" s5 K6 P. Q9 j) brequirements in IEC 60950-1.
4 w; R( @* E( B- U* MDC – national differences based on UL and CSA component requirements. DC
& d7 S6 l$ f6 o5 i2 I9 {" Enational differences may be less stringent than, equivalent to, or more stringent than- x& c: ]- S Z* w
component requirements in IEC 60950-1.
2 _3 u, c' D/ u8 m& f9 eD3 – national differences based on bi-national requirements which result in less
( k2 I3 N3 _& D( {; {stringent requirements than in IEC 60950-1.
9 M. v3 f9 d, n) F* wDE – editorial national differences that correct typographical errors in IEC 60950-1 or$ i& A) Y! ^& r0 N
revise the terminology, but do not alter the technical intent of the requirements. This+ W2 }8 l) |/ L
notation 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