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本帖最后由 小米 于 2012-9-12 15:38 编辑 : g2 g5 J& {3 Q4 C8 I# t" n* E
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|  DSH 442 | Interpretation of “in close proximity" or “within a distance of 3 mm"
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| 60335-1(ed.3)
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- `, ^& z5 t5 m# @- ~# n' e! D! MStandard: IEC60335-1:1991, 3rd Ed
. M- {5 m% ?. E. pSub clause: 30.2' c/ {0 ]9 j* l
Sheet No.: DSH-442. T6 \, _! b+ J
Subject: Interpretation of “in close proximity" or “within a distance of 3 mm"
J: X2 w* u7 jKey words: -close proximity - within a distance of 3 mm; n C, @' }! c. |6 R& y5 i# J
Decision taken at the 40th CTL meeting 2003.) j) |! j' {2 k( i6 X! Q7 s
Question:+ g; a. C* U C& H" t
In the note of sub-clause of 30.2.2 of IEC60335-1:1991, 3rd Ed. , "In close proximity" is& e+ ]1 w' W, i. e7 T: W4 v. J$ _
considered to be a distance not exceeding 3 mm. Some say the distance means clearance or v; f! V b0 Y
Creepage distance and the others say it means shortest distance regardless of any non-metallic5 W# O* h9 ^' P
materials between them. How should it be interpreted?6 R; ?) { Z g. x1 y9 S# n
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发表于 2012-9-12 15:36
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