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本帖最后由 小米 于 2012-9-12 15:38 编辑 ! K4 \5 l$ }/ s- z( ]% m4 T6 G
- g; K8 b. f9 B) \4 [" I1 G |  DSH 442 | Interpretation of “in close proximity" or “within a distance of 3 mm") [6 s' w% b% W9 {) L% Q4 D+ e
| 30.2& l5 H3 G. [6 H* ^# c1 V, k
| 60335-1(ed.3)' m1 g1 d" ]2 z& K6 L- s8 E6 j+ `
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m/ r5 w7 ^+ c) y5 l! fStandard: IEC60335-1:1991, 3rd Ed, C* U* t' i- H$ @ a
Sub clause: 30.25 N! z6 B$ W. [7 `3 j }
Sheet No.: DSH-442
/ L$ A: L0 d I9 q" I' {# u d. x6 @Subject: Interpretation of “in close proximity" or “within a distance of 3 mm"* Q/ ]7 P* J, y) t, u5 [
Key words: -close proximity - within a distance of 3 mm
: E# p% c% D5 Y: P1 A& k# EDecision taken at the 40th CTL meeting 2003.
1 a0 e4 Y7 n1 PQuestion: s8 l% q2 N5 V9 f
In the note of sub-clause of 30.2.2 of IEC60335-1:1991, 3rd Ed. , "In close proximity" is! R# E r- @2 i1 X% U" l& u- I
considered to be a distance not exceeding 3 mm. Some say the distance means clearance or' e, O( h8 U$ P! Z0 a: U/ ?
Creepage distance and the others say it means shortest distance regardless of any non-metallic; a) J+ H' _! o- P0 f8 x
materials between them. How should it be interpreted?3 [6 P6 u) E' r; Z" E) n$ n ?
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发表于 2012-9-12 15:36
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