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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:2 j$ L8 O" R) }' P. K3 }' z7 v9 D
D1 – national differences based on national regulatory requirements which result in
5 C; p+ P: K3 Y) ^2 kequivalent or more stringent requirements than in IEC 60950-1.4 I/ n/ Q* X* r6 n! k- ^ a
D2 – national differences based on other than national regulatory requirements which6 T: \8 ?! a1 U7 Z B
result in equivalent or more stringent requirements than in IEC 60950-1.
0 V0 D9 c( I+ \( e4 yDI – national differences based on IEC final draft international standards (FDIS). DI7 F* H; r: P' M T! K& H
national differences may be less stringent than, equivalent to, or more stringent than' b6 n) b0 x$ t, |9 A1 f& w
requirements in IEC 60950-1.$ r, |: p" Z* ]2 h* i$ C4 M2 q
DC – national differences based on UL and CSA component requirements. DC/ ^% k! ]8 V$ m$ Q: _
national differences may be less stringent than, equivalent to, or more stringent than
: U: v4 T) K) J' W# Xcomponent requirements in IEC 60950-1.
9 p# ]: r! i. W6 W& z, m1 A* eD3 – national differences based on bi-national requirements which result in less* r. z. F7 M. A1 d/ u
stringent requirements than in IEC 60950-1.6 D6 i4 c! s/ z* M
DE – editorial national differences that correct typographical errors in IEC 60950-1 or
' F' c' d+ u. L8 ^& [2 x$ V$ y* Yrevise the terminology, but do not alter the technical intent of the requirements. This
2 [! t& @/ Z$ o) a7 U3 h" Mnotation 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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