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|  DSH 496
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| Heat/fire/tracking
2 k* ^& U/ F/ [! q/ h% d* w6 H6 M | 30.1; r* o5 w3 r0 j2 ?
| 60335-1(ed.3)
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2 e* R- V4 Z, ]$ CStandard: IEC 60335-1:1991, 3rd Ed.
, a0 C/ o% ^7 Y5 s p iSub clause: 30.1
3 p4 `( W5 L! J$ q KSheet No. DSH-4968 F, e$ ~7 N+ {: [
Subject:
/ m4 Q* u. c! G4 u$ D9 G) hHeat/fire/tracking
' h4 Y" z- y; | I, ?Key words: - Ball-pressure test; S2 I, t. [) V, j( e; v% L7 E
Decision taken at 40th CTL meeting.
Q7 \4 r3 ?8 Y3 SQuestion:
# K o1 E7 F9 u- v: LWhat is the applicability of the ball-pressure test to parts of insulating material supporting live parts?& k. z) U8 [. P/ H" Y, `
Rationale:1 k& u2 U* [3 g$ ^3 t+ I
See question.
) v0 r! |) a7 V5 L8 vDecision:
2 a$ V) H. n- c ^: L. x1 tFor 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.; t2 J$ G: w. ?) W4 }4 M! u
For parts of insulating material like the insulation covering snap-on connectors, only the glow-wire test is carried out.
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发表于 2012-9-9 23:06
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