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|  DSH 496
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| Heat/fire/tracking
+ ^- m) D5 l7 ^( ]" U | 30.1" X* f1 b- v3 a+ m
| 60335-1(ed.3)8 a+ @+ }+ W5 j2 E) i* C
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Standard: IEC 60335-1:1991, 3rd Ed." p5 } ^) A i4 V* K; j9 i8 ~
Sub clause: 30.1( G5 d: @: k$ m: h
Sheet No. DSH-496$ Q$ t+ b% g/ t$ S
Subject:, M" y1 |. w. @0 m' U: w+ P8 a7 h% V
Heat/fire/tracking% e& N1 W* ^: v/ o
Key words: - Ball-pressure test
E: @) F9 `/ _Decision taken at 40th CTL meeting.3 W! L3 J: }( l1 F! @' k! b9 S- _3 r( U
Question:
& ^, @! i" ?1 G) k' ^! x5 V7 fWhat is the applicability of the ball-pressure test to parts of insulating material supporting live parts?$ }; r1 K, C5 I2 R/ ^ m/ l
Rationale:
, L- b* O, a; x8 r) ^! {( GSee question., J+ |3 _! z s+ O7 g# |8 ]( R
Decision:
! z, w8 r# l$ N1 MFor 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 e2 b% G. Y% L( N9 b- V QFor parts of insulating material like the insulation covering snap-on connectors, only the glow-wire test is carried out.# m- Z1 t! @* Y! n3 z
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发表于 2012-9-9 23:06
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