标题: UL标准中 右边的DE DC是什么意思 [打印本页] 作者: zsh127 时间: 2010-10-20 18:03 标题: UL标准中 右边的DE DC是什么意思 如题, 我现在在看UL 标准, 右边经常有DC DE等, 请问知道的告诉下是什么意思?. ' _8 w; B' H7 U6 p+ K) D
先谢谢了作者: bradchen 时间: 2010-10-21 09:18
DC - national differences based on UL and CSA component requirements. DC . F+ t( j+ m0 s0 V G5 l% j) |5 Anational differences may be less stringent than, equivalent to, or more stringent than * N' K5 T3 s2 h; r, U8 j* l7 _component requirements in IEC 60950-1.- J8 N7 D" v- r( w1 \, o, n
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DE - editorial national differences that correct typographical errors in IEC 60950-1 or & f8 z! d$ M+ L) Z. J4 f4 o* L) |revise the terminology, but do not alter the technical intent of the requirements. This 4 t& Z: d/ p. L6 c. xnotation is also used for informative statements such as the Preface.: b$ @- `- a3 D0 L# }7 i