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标题: DSH 500 Creepage distances, clearances and distances through insulation [打印本页]

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作者: 小米    时间: 2012-9-9 22:19
标题: DSH 500 Creepage distances, clearances and distances through insulation

DSH 500 # G/ M8 m6 }$ x" U6 Y 9 s& _9 k3 H/ {0 K

Creepage distances, clearances and distances through insulation # Z: }9 ~7 q& D) n% v6 ~* v0 }

29.2 2 S, P" X- \& A4 s; W

60335-1(ed.3) ( E0 k8 S, T+ e2 ?7 I

: Q$ I2 ?9 D- ?. D3 [Standard: IEC 60335-1:1991, 3rd Ed.
  X% o% P, E* @# k) OSub clause: 29.2
' ?' M7 T* e$ X: F7 F- vSheet No. DSH-500
0 S6 q3 n9 a$ `Subject: Creepage distances, clearances and distances though insulation
  K/ q6 w' E7 {' D4 IKey words: - one or more air layers
) ]# V' b8 b. {6 V$ }" N2 HDecision taken at the 40th CTL meeting 2003
7 K, @& I3 w: }/ ]3 r3 j) KQuestion:
/ O% Q- U5 ]) fWhat distance consisting of material plus one or more air layers (note 1) is required in
accordance with clause 29.2?
$ w* c* A9 c$ n2 K1 M+ ~Rationale:
See question.
8 h% x  ]# Z4 {7 NDecision:
Constructions as in the figures are according to the standard.
. D4 f8 P1 `" J9 m- X5 \
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