Creepage distances, clearance and distances through insulation : L T ~" w4 X( X
29.1 3 @" _9 } p0 u2 t
60335-1(ed.2)$ X3 v) C0 h# J; M* c
2 J0 e, |# o+ N0 gStandard: IEC 60335-1:1976, 2nd Ed.4 D8 g8 C0 w, y
Sub clause: 29.1 $ ~9 O& N! a1 C- P! ASheet No. DSH-468 5 `: K4 I+ J+ K9 O9 {- cSubject: Creepage distances, clearance and distances through insulation+ T, u. U: x1 l- ?! v
Key words: - distances between mains and SELV circuits " f0 |& n% |& O. L5 HDecision taken at the 40th CTL meeting 2003 8 t3 K* A" L9 v4 F8 x5 I. FQuestion: N) N) I3 Q( q& m
What are the requirements for the insulation of the wiring between the mains circuit and the6 t* ]. c0 z6 o- a8 U
safety extra-low voltage circuit? , z/ ]; y- S5 O5 |Rationale: |5 x8 Z% @( E1 L& S
See question.5 C* x) b, R' M' M" a U$ H! h6 C
Decision: 8 @+ j# | [5 u/ S, K, f, V7 M- NThe insulation of the wiring in the safety extra-low voltage circuit shall comply with the - x: V0 a2 x! [6 Frequirements for basic insulation, whereas the insulation of the wiring in the mains circuit& N3 Z3 _8 P n3 x
shall comply with the requirements for supplementary insulation. ' _( S, n8 g0 p! o" ^2 wThe thickness of the insulation of the wiring in the mains circuit shall comply with the 6 B! y' h8 T8 `( z0 Z6 srelevant cable standard or, as an alternative, it shall comply with sub-clause 29.2 of IEC 335-, d; |# Y; m* h7 l# _8 h8 [
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4 Y. N N3 v. Z( s7 p; [2 f$ z! L[attach]75864[/attach]% N3 P% m/ k" ^. e6 W
DSH 468; y0 v! s1 v3 @. g; K# `( A& M