DSH 496 Heat/fire/tracking

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广东安规检测
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小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

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灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

DSH 496 6 d: J, o  e: k$ J8 X

Heat/fire/tracking 6 D. t, h# H/ V- K' ?# {" C! s

30.1 & o. M% [0 J" N/ W2 S

60335-1(ed.3)   u  p& }0 s# n6 Y# \

Standard: IEC 60335-1:1991, 3rd Ed.
9 ^4 F! E/ b& T$ O& z8 ~Sub clause: 30.1
3 h% k2 h  r) R7 CSheet No. DSH-496
% Q1 O) o1 b: s' Z+ k' r4 |Subject:
" ^( s0 `. R  q5 W4 k& XHeat/fire/tracking
Key words: - Ball-pressure test
Decision taken at 40th CTL meeting.
Question:
What is the applicability of the ball-pressure test to parts of insulating material supporting live parts?
& e: B- x! O5 }1 E; ~Rationale:
  A# g+ z# L# OSee question.
( w" K: p4 t' N( e8 \5 |$ c0 jDecision:
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.
) B$ F) c. z6 n$ N! lFor parts of insulating material like the insulation covering snap-on connectors, only the glow-wire test is carried out.
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