|
|
|  DSH 468
7 |7 c y8 ^3 f, p, h: r9 P0 Y$ p- D3 c
| Creepage distances, clearance and distances through insulation
# x, s: B2 Y4 B | 29.1. v; \3 G( T& m* w& w* L: O0 a
| 60335-1(ed.2)
; f5 I, \' L; ^* G& | |
+ E% q) Y2 w; E" T* T. }
Standard: IEC 60335-1:1976, 2nd Ed.
0 s2 n( X+ ~* A; V U9 G7 A2 R ]Sub clause: 29.1 ]( f) [' K4 M+ t. ~8 K7 h
Sheet No. DSH-468- t9 N! j# W: X$ ^; `" q
Subject: Creepage distances, clearance and distances through insulation
& O3 t9 h4 o( j8 DKey words: - distances between mains and SELV circuits
- I! C, m! V3 k/ w! C* |8 w. hDecision taken at the 40th CTL meeting 2003
! y- M$ p$ h: k/ D/ x! c) MQuestion:
4 } l1 c1 h8 B% bWhat are the requirements for the insulation of the wiring between the mains circuit and the, w" K8 L T+ t" A/ a+ T
safety extra-low voltage circuit?% }, g7 l; P' Y4 ? U+ \3 l1 {
Rationale: x" _% V* N) _. r1 D6 H0 d
See question.
* Y1 V8 Q8 a: G- |Decision:; o, {8 T6 v, o, E
The insulation of the wiring in the safety extra-low voltage circuit shall comply with the
. X9 z$ F8 w( f7 Drequirements for basic insulation, whereas the insulation of the wiring in the mains circuit) g+ X, D7 h5 `" I
shall comply with the requirements for supplementary insulation.
3 i1 s; n8 V# y4 f; ~The thickness of the insulation of the wiring in the mains circuit shall comply with the
8 l9 V& J4 M$ N2 ]relevant cable standard or, as an alternative, it shall comply with sub-clause 29.2 of IEC 335-
/ U& B; Y- k3 Y) p1.2 h. u5 R$ l/ d! k( |4 U: `+ Z
( G# K3 f+ y) l1 J# I9 F$ P( _
3 P" e4 R; ~1 c! O! |8 J& ~& Q2 C |
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有账号？注册安规
x
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-9-12 13:11
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡