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|  DSH 4685 a+ j( w) R1 F
1 J- }# Q: w( H0 r1 D+ B | Creepage distances, clearance and distances through insulation
7 g7 x# c, W6 f | 29.14 T: Y" L8 R/ ^! g
| 60335-1(ed.2)
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Standard: IEC 60335-1:1976, 2nd Ed.4 m9 ~7 h) ^, p) l* R. |/ C$ s
Sub clause: 29.1
# C& I3 {7 D0 N" V" ^Sheet No. DSH-4689 L3 m }4 h# ?) `5 w4 m5 H
Subject: Creepage distances, clearance and distances through insulation: ?% y' O S% e3 _1 J# [$ R
Key words: - distances between mains and SELV circuits% s* S4 K$ C6 }" D3 i' U
Decision taken at the 40th CTL meeting 20038 s* Q+ i! O& {+ o
Question:7 y4 k7 H+ S4 w7 A- t+ D" P
What are the requirements for the insulation of the wiring between the mains circuit and the* b7 g: T' q* k% j, k# T0 g8 n
safety extra-low voltage circuit?
# e( u* n/ ~3 [" m! D. Z# J% W' _; NRationale:
0 s+ L5 O: V% ~See question.
; D8 L# K* @0 Q3 VDecision:
: ]* Z/ F9 J8 X7 C1 S1 r( ZThe insulation of the wiring in the safety extra-low voltage circuit shall comply with the
5 l8 z5 l. j* d0 Y1 a& P& S! J) xrequirements for basic insulation, whereas the insulation of the wiring in the mains circuit% B% k7 b# f% B6 r: S
shall comply with the requirements for supplementary insulation.2 q+ n- C4 n3 A$ R
The thickness of the insulation of the wiring in the mains circuit shall comply with the
/ o( z( ?& u2 o# m) I0 j/ jrelevant cable standard or, as an alternative, it shall comply with sub-clause 29.2 of IEC 335-
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发表于 2012-9-12 13:11
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