DSH 468 Creepage distances, clearance and distances through insulation

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DSH 468 % h! @! V1 F9 c, R8 n  S ( y. m& N' U% x: S

Creepage distances, clearance and distances through insulation

29.1

60335-1(ed.2) 8 h% a' h- r4 x- `  f0 g# K

Standard: IEC 60335-1:1976, 2nd Ed.
6 N4 x& h4 E8 ~  s. q+ M" i1 G" C4 USub clause: 29.1
) |8 [/ Y3 N- |5 RSheet No. DSH-468
Subject: Creepage distances, clearance and distances through insulation
7 Y: {' H# j' jKey words: - distances between mains and SELV circuits
8 X8 n" b, U- V' P# G+ cDecision taken at the 40th CTL meeting 2003
Question:
; p. D, N3 n' Z! \7 A5 dWhat are the requirements for the insulation of the wiring between the mains circuit and the
safety extra-low voltage circuit?
Rationale:
! u+ ~2 W8 X! E9 NSee question.
6 D4 s# J8 z$ v) {! ?4 H4 N+ UDecision:
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
' R/ `4 D2 z" I1 z" y: Q! L* kshall comply with the requirements for supplementary insulation.
1 q  [% V/ ~" |7 C$ B5 _The thickness of the insulation of the wiring in the mains circuit shall comply with the
relevant cable standard or, as an alternative, it shall comply with sub-clause 29.2 of IEC 335-
5 d* m2 N. H. V1.
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