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|  DSH 500
( I8 G8 k+ p# R: p
1 e/ _! \; @+ ]3 `4 ~' B | Creepage distances, clearances and distances through insulation
4 b. A+ n7 T* z. u/ H% X, t | 29.2
/ n- b7 G0 L) q/ ~( F | 60335-1(ed.3). y* u6 B' v7 Q, f% t
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" K6 `0 \* i- [" R F" zStandard: IEC 60335-1:1991, 3rd Ed.) w- R) R; `# ]: a4 t c; `# T& z
Sub clause: 29.2& |* E- w) Q, i8 o! P7 J! m5 ?
Sheet No. DSH-5004 y o/ ]7 }' M! q: G
Subject: Creepage distances, clearances and distances though insulation
! `7 U: P6 x. z) M7 v1 X& u" @2 eKey words: - one or more air layers
; @+ e4 F6 V+ P g" zDecision taken at the 40th CTL meeting 2003
B, V |* F" P9 W8 `! U* tQuestion:
$ M8 p2 u1 q$ z8 ]2 r& y: zWhat distance consisting of material plus one or more air layers (note 1) is required in) m) `6 N/ p+ m! ?( e
accordance with clause 29.2?' g7 r9 [$ }/ A$ A' u6 a9 i; v
Rationale:" N4 I, X5 ] |6 Z# v+ E8 V
See question.
- X- }6 c! v0 JDecision:
8 N" x K# d+ C* O' p% h+ Y. yConstructions as in the figures are according to the standard.
* P2 l7 y7 N' z' _' [6 ?3 F0 {8 A) g# `1 `7 X/ x
) `' X6 L, B9 v6 \ |
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发表于 2012-9-9 22:19
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