标题: 如何设定耐压测试时的漏电流? [打印本页] 作者: sd929898 时间: 2011-11-13 22:07 标题: 如何设定耐压测试时的漏电流? 请教一下, 在1500V,或3000V耐压测试中,为什么漏电流在耐压仪里设定是10mA? 在IEC/UL60950里有规定吗?
是否是这一节: 6.1
For equipment powered from an AC MAINS SUPPLY, the test is performed with a voltage equal to
the RATED VOLTAGE of the equipment or to the upper voltage of the RATED VOLTAGE RANGE. For
equipment powered from a DC MAINS SUPPLY, the test is performed with a voltage equal to the
highest nominal voltage of the AC MAINS SUPPLY in the region where the equipment is to be
used, for example, 230 V for Europe or 120 V for North America.
The current flowing in the test circuit of Figure 6A shall not exceed 10 mA.
但我认为这一章是对通迅网络而言的. 不是对整机和变压器而言的.作者: 日夏清 时间: 2011-11-13 22:08
没有具体规定，好像是UL他们的内部规定，只要是打耐压，他们都是打10mA。作者: dfcmie 时间: 2011-11-13 22:09
没有规定的呀,只要是测试时不会发生绝缘崩溃就算是合格的拉~作者: sd929898 时间: 2011-11-13 22:11
主要是因为我们有两种版本的操作方法,一种说是设3mA,一种说是10mA,再看了一下标准, 应该如下就可以了.
Insulation breakdown is considered to have occurred when the current that flows as a result of
the application of the test voltage rapidly increases in an uncontrolled manner, that is the
insulation does not restrict the flow of the current. Corona discharge or a single momentary
flashover is not regarded as insulation breakdown.作者: dotzuv 时间: 2011-11-13 22:12
好象3mA对应打的是dc 10mA是ac