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|  DSH 496
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! C* y R4 a4 t1 _- V( D | Heat/fire/tracking2 N+ ~1 P2 H" ]. T: ]$ j$ M$ A, P
| 30.1# i' ]* [! |# R0 n6 ?
| 60335-1(ed.3)
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Standard: IEC 60335-1:1991, 3rd Ed.) `7 K* O$ t8 ~
Sub clause: 30.1
& }/ r: @6 G1 [Sheet No. DSH-4960 J' i: q7 e3 ?2 U& S8 t0 |- H& x& W
Subject:
4 ?4 C5 U5 `& K |& ^' f5 `Heat/fire/tracking5 }- P! f4 @; p& D0 n9 K+ X X! a
Key words: - Ball-pressure test2 G2 R. K6 {- N% a. \
Decision taken at 40th CTL meeting.: W, w) t4 {1 z! t
Question:4 g0 I4 B" m7 _
What is the applicability of the ball-pressure test to parts of insulating material supporting live parts?
$ K& l' o8 b6 q. C; h0 yRationale:
: L" O3 [- n: V( X' B# Y/ LSee question.
( d& ]0 `; Z' A( {/ N) S. D1 MDecision:. n1 a6 Y( g' K6 F1 J; r
For parts of insulating material covering live parts which occasionally are in contact with live parts of different potential, the ball-pressure test is carried out at 75 deg C.
. p p: B# a: ZFor parts of insulating material like the insulation covering snap-on connectors, only the glow-wire test is carried out.! o9 n( ^/ @* J6 U! D
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发表于 2012-9-9 23:06
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