|
|
; T( k& Y5 z }# f* k& E6 H
Standard: IEC 60335-1:1991, 3rd Ed.
, k o/ V4 Z, f5 c6 G+ k) cSub clause: 30.1
. ?! Z7 W) i! o9 v+ J, @6 nSheet No. DSH-496
( T' B" D( a3 O% p( zSubject:
. v/ G! H4 I" `1 l3 W' ^; |Heat/fire/tracking
0 }3 n4 [; L! x0 A- I' yKey words: - Ball-pressure test% h: o. ^- `* ^' ~. w9 u2 f
Decision taken at 40th CTL meeting.) b+ h; H" K V( p% v
Question:# A- c% ?' b4 R8 ]7 B
What is the applicability of the ball-pressure test to parts of insulating material supporting live parts?4 }7 D5 A5 d0 Z& x8 r: i5 F- e& ]/ A
Rationale:6 }3 a( A. ]' s( I* d
See question.
I# B' v# C6 ?" G: w: v! ~# L% mDecision:
0 j' z! w8 W7 rFor 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.
- }* N) ?" n9 A3 q2 ZFor parts of insulating material like the insulation covering snap-on connectors, only the glow-wire test is carried out.' I" i9 W& g% g" e& U9 M& D
5 j; D) C# [4 F; ?# {4 t8 b1 ?! i. A
( ~3 W' P1 }: K( B' {& n+ k9 C( \
y- G) C/ F5 f, D& C# Z* O |
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有账号？注册安规
x
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-9-9 23:06
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡