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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:
& g$ K Y$ W& M) L% L! |D1 – national differences based on national regulatory requirements which result in7 O1 E9 j9 u9 C, p' z9 {+ s; s# V
equivalent or more stringent requirements than in IEC 60950-1.) p4 o4 m1 {7 ^7 i* j5 w
D2 – national differences based on other than national regulatory requirements which) I- }8 s" X! W
result in equivalent or more stringent requirements than in IEC 60950-1.* s* M' i/ b) V2 S! q& v, G
DI – national differences based on IEC final draft international standards (FDIS). DI
; L2 w8 A1 E1 E7 V8 H, cnational differences may be less stringent than, equivalent to, or more stringent than+ B# _( g$ A$ m" j- A
requirements in IEC 60950-1.
5 U+ ^5 \6 F' {+ O, eDC – national differences based on UL and CSA component requirements. DC0 ? }& T8 M- `4 C! q: C) }
national differences may be less stringent than, equivalent to, or more stringent than
* Q# G1 N7 o0 N' }1 j1 Qcomponent requirements in IEC 60950-1.3 y$ |+ q- N& s/ L* }; B
D3 – national differences based on bi-national requirements which result in less
# V3 u6 o2 G+ R+ w, v% `stringent requirements than in IEC 60950-1.
( q% G; I! [) e! LDE – editorial national differences that correct typographical errors in IEC 60950-1 or- j2 B: L6 N5 Z2 [$ g0 S+ r2 f, D
revise the terminology, but do not alter the technical intent of the requirements. This
: i! v1 ~! B2 B& x( wnotation 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