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DC - national differences based on UL and CSA component requirements. DC R8 G9 I% y5 r+ T4 q& o8 s
national differences may be less stringent than, equivalent to, or more stringent than6 x* ?, J" b3 o& p$ l
component requirements in IEC 60950-1.5 H# H% a: l5 l2 U. }7 T' w
( U2 j1 x; a n' x2 iDE - editorial national differences that correct typographical errors in IEC 60950-1 or4 k3 Q9 h. j8 H& l1 M: H$ f2 k* G
revise the terminology, but do not alter the technical intent of the requirements. This
S) n" _: b% P# l4 Znotation is also used for informative statements such as the Preface.
8 a! |; O- v8 y+ c9 _% C9 }7 b. Y5 \' c. y! T4 a; I
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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