UL1054条款变更！
PROPOSAL17 Endurance Test
17.2 A switch is to be operated by means of its actuating member either manually or by an acceptable
machine for 6000 cycles of making and breaking its rated current at a rate of 6 – 10 cycles per minute.
The endurance test shall be performed at ambient temperatures ranging from 25°C – 70°C (77°F – 158°F)
at 5°C (7.5°F) intervals to determine a temperature vs. current derating curve. The test sample should be
conditioned at each ambient temperature for one hour before the test starts. A new test sample can be
used for each ambient condition.
SUBJECT 1054 -2- MARCH 2, 2011
这个怎么理解？ 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.
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
都使用新的样品.
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? 关于开关使用寿命的最新版本测试？ 是的，UL网站更新通知的
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