DSH 468 Creepage distances, clearance and distances through insulation

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DSH 468   S1 d  J3 S; h9 F ; f# ~7 \3 G6 A1 B' D8 m+ s

Creepage distances, clearance and distances through insulation

29.1

60335-1(ed.2)

  J/ L- c8 _5 |  Q2 O+ `  W, bStandard: IEC 60335-1:1976, 2nd Ed.
; B( k. S0 A, Q: }' f( ASub clause: 29.1
+ m( K" l' j8 y) n6 M: w7 m1 ISheet No. DSH-468
Subject: Creepage distances, clearance and distances through insulation
Key words: - distances between mains and SELV circuits
1 X6 _6 V. Q1 p& \' }2 V# w! T8 ODecision taken at the 40th CTL meeting 2003
Question:
# F, d( Q% p: I& S4 VWhat are the requirements for the insulation of the wiring between the mains circuit and the
! {1 X$ x% b: f+ fsafety extra-low voltage circuit?
! t: x0 s, ~# V; w* d* N4 bRationale:
See question.
& P2 a( d" C4 r* C" pDecision:
The insulation of the wiring in the safety extra-low voltage circuit shall comply with the
requirements for basic insulation, whereas the insulation of the wiring in the mains circuit
4 w: a& A) V7 O* l# cshall comply with the requirements for supplementary insulation.
The thickness of the insulation of the wiring in the mains circuit shall comply with the
% t; `+ r& t2 a, a: g7 Prelevant cable standard or, as an alternative, it shall comply with sub-clause 29.2 of IEC 335-
1.
' E: s0 B/ D3 w3 n, H