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本帖最后由 小米 于 2012-9-12 15:38 编辑 ( J3 @2 |- R# G# J
& C! m- b2 M4 Z& u |  DSH 442 | Interpretation of “in close proximity" or “within a distance of 3 mm"
3 g' j8 D4 ~. f | 30.2
8 g4 O S* N( h; g4 _6 S6 Q | 60335-1(ed.3)
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* ?/ q/ M/ ?$ J4 tStandard: IEC60335-1:1991, 3rd Ed1 F- B$ p5 @ |( q) S* w4 f
Sub clause: 30.2
, P+ d8 ~! V4 uSheet No.: DSH-442# N( V9 ?; h- ]3 }% c& v
Subject: Interpretation of “in close proximity" or “within a distance of 3 mm"
$ J/ S3 c5 d3 Z: J6 C3 _2 S& M( OKey words: -close proximity - within a distance of 3 mm
, G# U6 F, r8 n6 ?* O) P$ QDecision taken at the 40th CTL meeting 2003.
6 u$ D. g8 u, \* w4 O; KQuestion:
/ c q/ C: ?0 J! q' M. J, jIn the note of sub-clause of 30.2.2 of IEC60335-1:1991, 3rd Ed. , "In close proximity" is: m0 g& m2 @8 x) a. M2 C+ B: s
considered to be a distance not exceeding 3 mm. Some say the distance means clearance or. q' G5 A8 ]- ]# }0 @' q+ b- i
Creepage distance and the others say it means shortest distance regardless of any non-metallic8 y x6 X2 \& a- B
materials between them. How should it be interpreted?, E$ i. o! `& ], c
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发表于 2012-9-12 15:36
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