标题: 高压测试参数的设置 [打印本页] 作者: 8147146 时间: 2010-4-19 11:37 标题: 高压测试参数的设置 dear all:- I" e' v# `1 p8 p2 @7 W
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为什么打高压时的参数设置为1250V/1.0mA/3sec呢，怎么样才能证明如果通过了这个参数的检测就代表产品的安全性呢，请大侠指教，谢谢！作者: fisher198333 时间: 2010-4-19 11:41
机器报警就说明你打1250V电压的时候，泄露电流大于1mA,这个时候产品安全性不够！反之则安全性够好！作者: lao_xia 时间: 2010-4-19 11:56
这个应该是在生产线上生产时的设置吧？这个参数设置应该是按照标准要求来计算的，如果要证明如果通过了这个参数的检测就代表这个产品是不是安全，这个就不太清楚了？还望大家给个解释！作者: hexiling 时间: 2010-4-19 12:30
一般把高压测试仪崩溃电流设定到100mA就可以了，因为一旦超过了这个值，就认为是击穿了。时间按标准来欧标是1min吧，美标大都1Sec作者: Andy.Yang 时间: 2010-4-19 12:31
Yes, normally you must find out the corresponding test standards about your products, but from your description about the dielectric test, I guess this test should be initiated on the production line.so follow the steps as follows:( e; D! o" K1 E( I' B" ]
1.check the related standards and find the related requirements for your products, such as follows:8 ]% U8 F9 i8 m' y- p+ C$ z
on the production line(routint test): 1.2k for 2 seconds, with the leakage current 3mA " Z2 m0 b; f# P; Z0 V0 Yfor type test:1kV for i minute, with the leakage current 3mA 0 L: f; M0 f1 m6 I) W/ j" B# w' e% M2. set your own test instructions, and specify the test procedure, maybe, your test requirements are more severe than the standards' requirements, that's also ok for robustness.1 _) N( a+ F3 Z8 U# `9 y1 a
3. do the test, if breakdown, then reject, if not, accept..( S: x$ c% d; v
normally, for UL, there is no requirement for the leakage current, and as per the experience, 10mA, but for other parties, 3.5~10mA is recommended...作者: Andy.Yang 时间: 2010-4-19 12:33
of course, you also can select the DC tester, then the test value should be 1.4 times of the AC test value.