I've been asked to test a network powered (-130 Vdc) product to GR-1089-CORE for lightning and power cross.
Does anyone out there have any suggestions on how to do this testing while the product is powered? The problem is that if you apply 1000 V, 10/1000 uSec, 100 A to tip/ring while the product is powered, you will damage the power source. I've looked into using series inductance followed by an MOV and capacitor, but I'm not sure if all the energy is getting to the UUT. Another problem is that my tester applies a short to tip and ring prior to the application of the test voltage. The same problem doing power cross (600 Vac, 1 A, 1 Sec). Applying this kind of voltage to the power source will damage it. Is there a way for the UUT to remain line powered and provide protection to the power source? Has anyone had similar problems? Thank you very much for any suggestions. Jerry
