DSH 468 Creepage distances, clearance and distances through insulation

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IEC60335试验指甲

DSH 468

Creepage distances, clearance and distances through insulation 6 m0 P7 {# I- h* \, L' U

29.1

60335-1(ed.2)

Standard: IEC 60335-1:1976, 2nd Ed.
Sub clause: 29.1
+ j4 ?4 ^% `* ]9 H/ I7 b* w6 dSheet No. DSH-468
4 m2 ]+ J" |- c& sSubject: Creepage distances, clearance and distances through insulation
! Y0 a  I& X6 C3 {, Q2 M# K$ _Key words: - distances between mains and SELV circuits
9 Z# R0 |" ^7 B: \Decision taken at the 40th CTL meeting 2003
Question:
What are the requirements for the insulation of the wiring between the mains circuit and the
! j, ^) j0 }3 A+ x+ _3 \( g+ Wsafety extra-low voltage circuit?
+ R0 N* {: s# |. u6 U. wRationale:
See question.
$ n) Z( |* j0 C( S1 k" l3 kDecision:
9 @2 A4 V2 g3 h& C7 \$ M# @/ Y" _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
' q5 N0 p# O- D- W) fshall comply with the requirements for supplementary insulation.
! ?' N" o' N& oThe thickness of the insulation of the wiring in the mains circuit shall comply with the
( ^# V/ }1 Q7 H( \3 Jrelevant cable standard or, as an alternative, it shall comply with sub-clause 29.2 of IEC 335-
1.
  j  p) B5 ^0 f8 o7 c; q- M5 f