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Standard: IEC 60335-1:1991, 3rd Ed.# w* t: ^/ {- y' h' n% G
Sub clause: 30.14 U1 w' T8 g+ N' z" A
Sheet No. DSH-496
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Heat/fire/tracking3 E+ @! \" R( s; m" g, w2 W
Key words: - Ball-pressure test
0 m( N0 x1 ^, M8 p/ `Decision taken at 40th CTL meeting.0 X1 i. T2 N/ O3 j8 N" N; E
Question:/ i) e! |2 y/ [
What is the applicability of the ball-pressure test to parts of insulating material supporting live parts?
/ g* _% @9 u6 D2 s9 `3 L9 XRationale:
" Q( L F9 n0 v; Z7 L3 V/ rSee question.
& V" X# x$ z vDecision:
, Z K) d% A4 {: h( ?: h. iFor 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.
- ~& p9 g5 w1 r4 ]: DFor parts of insulating material like the insulation covering snap-on connectors, only the glow-wire test is carried out.8 _3 |" d' |; Z" |
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