DSH 468 Creepage distances, clearance and distances through insulation

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DSH 468 ' v7 l1 H* T1 e  P2 B( y7 o5 W1 F

Creepage distances, clearance and distances through insulation 5 `0 J/ V) B3 q3 B4 q! d

29.1

60335-1(ed.2) ( m- B2 k# m0 ^

Standard: IEC 60335-1:1976, 2nd Ed.
Sub clause: 29.1
( p: G1 Y4 \0 p; R+ J' I$ ^8 oSheet No. DSH-468
Subject: Creepage distances, clearance and distances through insulation
Key words: - distances between mains and SELV circuits
! A  |8 Q, s; h) n2 E7 UDecision taken at the 40th CTL meeting 2003
Question:
$ X0 K; W2 x+ |: n: @$ ^What are the requirements for the insulation of the wiring between the mains circuit and the
+ q4 o! [% p. ^; ?, ^2 \4 H: Esafety extra-low voltage circuit?
6 l. W6 A& C; ?4 Y8 @% }6 Q. Q) [# xRationale:
- j6 u" I; E1 B) z4 sSee question.
6 J9 V5 i1 ]0 P% _2 i5 s$ c* CDecision:
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
1 _5 ?, g6 f$ M( ^2 ^shall comply with the requirements for supplementary insulation.
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-
1.
3 d  [2 g2 n( a% }! S; ^, }" d
& e# `& Z8 ?5 ~4 |1 U! H: S