DSH 468 Creepage distances, clearance and distances through insulation

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广东安规检测
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DSH 468 8 e# \- T* h- C) v

Creepage distances, clearance and distances through insulation

29.1 . a1 L- d& E- M3 f) U' N

60335-1(ed.2)

Standard: IEC 60335-1:1976, 2nd Ed.
  {  B4 H( ~1 z5 B$ `" oSub clause: 29.1
2 e# F! W6 p2 x" H6 {( iSheet No. DSH-468
Subject: Creepage distances, clearance and distances through insulation
Key words: - distances between mains and SELV circuits
Decision taken at the 40th CTL meeting 2003
Question:
2 E" _. b7 z, Z. W) i3 i+ rWhat are the requirements for the insulation of the wiring between the mains circuit and the
safety extra-low voltage circuit?
7 h6 f/ t, q) X5 |1 N3 \Rationale:
See question.
Decision:
The insulation of the wiring in the safety extra-low voltage circuit shall comply with the
1 m7 o; w% @* R( P3 W$ f/ Wrequirements for basic insulation, whereas the insulation of the wiring in the mains circuit
  n" G3 @, F4 a* ~' B: f  oshall comply with the requirements for supplementary insulation.
# v/ G: j: x/ a& ?- zThe thickness of the insulation of the wiring in the mains circuit shall comply with the
( b  l+ g( i. L  ~' _* Mrelevant cable standard or, as an alternative, it shall comply with sub-clause 29.2 of IEC 335-
1 G. c" e0 v$ y2 ?" f6 [1.
! e/ w7 V& ]& D4 `$ @: C7 C
: ?( v3 A. S4 e0 [8 G