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|  DSH 496
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| 30.1" U0 V5 C5 \( |# [4 S4 }$ v$ x
| 60335-1(ed.3), |4 G' t. E9 ?1 E( k% ?" q
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- f+ M) x7 F' t& {: xStandard: IEC 60335-1:1991, 3rd Ed.6 j8 M5 ?+ q: I4 D ]. D7 P$ R
Sub clause: 30.1' ]& T( J/ { s* R
Sheet No. DSH-496. @# A/ Q% {$ i$ ^: z' \
Subject:$ P6 g5 V" G+ f$ o1 |, M5 k
Heat/fire/tracking( o8 A. y/ p; u0 n2 o% h# i2 l0 F
Key words: - Ball-pressure test
% l$ a! s8 b+ t& Z8 @Decision taken at 40th CTL meeting.
( _( |( Q6 w6 f* ~4 ]Question:
5 d2 t& Q" X* lWhat is the applicability of the ball-pressure test to parts of insulating material supporting live parts?
7 q$ }$ { x/ B; S( @* N- cRationale:, U5 @! y6 _1 f( B& r1 }. s
See question.3 |& x6 [+ G. r! K- e+ v/ z7 i, K
Decision:
+ @$ M1 u4 Q W. Y1 h8 FFor 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.1 X2 M& }- P' _2 J2 F" f
For parts of insulating material like the insulation covering snap-on connectors, only the glow-wire test is carried out., G# A& ]' q: N. K `- u7 T# A
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发表于 2012-9-9 23:06
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