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电源在进行耐压测试时有哪些注意事项?

Source: Time:2020-06-08 17:15:57 views:

1.电源所有的输入端子、输出端、应短路处理。若没有短路电源相应端子,电源内部元件可能承受额外分压应力并可能导致损坏。建议使用测试夹具,避免直接夹在电源端子上做绝缘耐压测试。
2.为了满足电磁兼容要求,电源内部至机壳之间存在滤波电容,其在耐压测试期间会流过交流漏电流。如果测试不过,请检查耐压测试时仪器漏电流限值是否过小。
3.从额定测试电压的一半开启耐压测试仪,然后缓慢加压至额定测试电压。
4.如果电压内部有防雷(浪涌冲击)电路,需在测试时断开。

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