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本帖最后由 小米 于 2012-9-12 15:38 编辑
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, d( ?. V3 @. m0 Q0 ?7 A( W |  DSH 442 | Interpretation of “in close proximity" or “within a distance of 3 mm"
6 L0 X; D; _! w. U | 30.2) U8 y9 U' Q% v V3 k
| 60335-1(ed.3)
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- x: Q+ S0 I! CStandard: IEC60335-1:1991, 3rd Ed
! E9 ~1 n) T0 d; Q; F. nSub clause: 30.2
3 d. w# F$ [9 B& y& D5 d9 aSheet No.: DSH-4425 G& p5 d6 n7 t- h
Subject: Interpretation of “in close proximity" or “within a distance of 3 mm"
5 \9 I3 X6 j4 a- _9 S1 Q& EKey words: -close proximity - within a distance of 3 mm
' i5 g" G) Z( h2 {. XDecision taken at the 40th CTL meeting 2003.
) D: o. l; _" c9 t: PQuestion:
( n+ e" T x7 Q3 H' W* k0 @7 rIn the note of sub-clause of 30.2.2 of IEC60335-1:1991, 3rd Ed. , "In close proximity" is( g/ D+ B u; M9 @; F8 s+ U
considered to be a distance not exceeding 3 mm. Some say the distance means clearance or
0 ?" V) E1 S; oCreepage distance and the others say it means shortest distance regardless of any non-metallic) T3 b. H4 A- n# f, A) R& \% y8 `. }
materials between them. How should it be interpreted?
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发表于 2012-9-12 15:36
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