标题: DSH 442 Interpretation of in close proximity or within a distance of 3mm [打印本页] 作者: 小米 时间: 2012-9-12 15:36 标题: DSH 442 Interpretation of in close proximity or within a distance of 3mm 本帖最后由 小米 于 2012-9-12 15:38 编辑 & ~- T0 L+ m: n6 \# Y- N . |0 c T( p4 x$ P/ y! X
Interpretation of “in close proximity" or “within a distance of 3 mm" 1 d0 A+ Y: h+ b. s+ t6 @0 O
30.2 : E: W! V6 _8 J& ?
60335-1(ed.3)& s. e: e' L, n$ ? g: D
9 K. _% [+ l* W/ K) w: k ( \" d) P. s, r l+ dStandard: IEC60335-1:1991, 3rd Ed7 J3 U) B, l0 o0 X5 O2 j1 S
Sub clause: 30.2. p2 d4 r% [5 q7 s9 d% V+ ~
Sheet No.: DSH-4425 S, ~+ U' X5 U" A7 N/ |: C( O
Subject: Interpretation of “in close proximity" or “within a distance of 3 mm" }- H/ _; X2 N2 o, L7 R1 D. x
Key words: -close proximity - within a distance of 3 mm# ^3 s O; z4 K/ A0 M. ?
Decision taken at the 40th CTL meeting 2003. $ K$ \- B5 J+ R) @Question:, b' @( S* g# |% F
In the note of sub-clause of 30.2.2 of IEC60335-1:1991, 3rd Ed. , "In close proximity" is# S& m; \$ F1 T
considered to be a distance not exceeding 3 mm. Some say the distance means clearance or6 |7 \+ A) G/ g% X+ [
Creepage distance and the others say it means shortest distance regardless of any non-metallic 1 {4 L' N6 Q$ Y, l+ }materials between them. How should it be interpreted? 6 I7 _8 x6 J/ J0 I3 K! t* Q8 U0 y* m! r
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DSH 442