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|  DSH 496
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| 30.1
3 m- q, }1 p5 e7 L | 60335-1(ed.3)
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Standard: IEC 60335-1:1991, 3rd Ed.7 |) V/ H" E: Z) J# ?- }
Sub clause: 30.10 s. n9 B9 U2 j$ X& n* N. w
Sheet No. DSH-496
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Heat/fire/tracking
# y4 }+ B' C' o8 m. s& R7 Y/ [% mKey words: - Ball-pressure test% v/ @+ K0 n9 Z* z E3 a4 X
Decision taken at 40th CTL meeting.2 i, o4 s: G# p8 U" X2 P6 I
Question:
# W2 p6 f8 v& m YWhat is the applicability of the ball-pressure test to parts of insulating material supporting live parts?9 T% x( }0 d3 G
Rationale:
' ^6 G0 A0 \' y' G% U4 }) c+ iSee question.
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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.! y' A+ O$ M: ^" R) x1 z' v8 s
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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