标题: UL1054条款变更！ [打印本页] 作者: lanxiao0493 时间: 2011-3-3 13:35 标题: UL1054条款变更！ PROPOSAL' D( W9 ]6 A6 \! N8 B1 A* D/ r4 P
17 Endurance Test 8 {, u& p2 i- P# |17.2 A switch is to be operated by means of its actuating member either manually or by an acceptable4 R( a& u: b: I/ H: y' K& c
machine for 6000 cycles of making and breaking its rated current at a rate of 6 – 10 cycles per minute. - b' J: H! n$ x9 E, `The endurance test shall be performed at ambient temperatures ranging from 25°C – 70°C (77°F – 158°F) + K+ \! D- n* @" g; vat 5°C (7.5°F) intervals to determine a temperature vs. current derating curve. The test sample should be " c& Q4 M, S% |6 Sconditioned at each ambient temperature for one hour before the test starts. A new test sample can be 1 N6 W- A/ G, o! Z. tused for each ambient condition. # e- @6 x# C& R) j3 m+ eSUBJECT 1054 -2- MARCH 2, 2011 : J* l& |1 Y+ h& }- X' L# _" i9 G$ Y+ d
这个怎么理解？作者: defong 时间: 2011-3-3 15:36
1. 在额定电流下,以每分钟6-10次的频率对开关作耐久寿命测试6000次,用手动或是可接受的机器,两种方式均可.. i3 R! }* }- g0 ~ R( `9 d
2. 耐久测试必须在25度-70度的范围下进行,每隔5度测试一次,每次测试前都要使样品在一小时内达到所要测试的温度,每个温度测# O% s+ R0 K1 H% k. t! f) ~
都使用新的样品.& ?7 W4 k; F+ v- w/ k5 l/ u
3 这是我个人的理解,如有不对地的地方请各位指正.还想问下,楼主是从哪得到的这个信息,是UL最新通知吗? 作者: aiduoxi 时间: 2011-3-3 16:00
关于开关使用寿命的最新版本测试？作者: lanxiao0493 时间: 2011-3-4 08:19
是的，UL网站更新通知的
