I concur; I am not aware of any product safety standard, that is listed in the LVD, that specifies current flow limits during the dielectric withstand type test.
I still do not understand why X caps will result in excessive current flow. Perhaps the OP intended to write "Y" cap. Capacitors that are across the line, should have the same potential on each terminal during hi-pot, and since the test voltage is applied to both line & neutral for the mains input; there should be no current path through the X caps, during this test. luck, Brian -----Original Message----- From: Georgerian, Richard [ mailto:rgeorger...@carrieraccess.com] Sent: Wednesday, August 06, 2003 9:19 AM To: emc-p...@majordomo.ieee.org Subject: RE: Hipot question Greetings All, Hopefully I am not misinterpreting this thread. I am getting the impression that there is a current limit requirement when doing the hipot test. I thought that hipotting is used to determine insulation breakdown. The breakdown would occur when the current flow (as a result of the applied voltage) rapidly increases in an uncontrolled manner. Therefore, there can be as much current flowing as long as there is no breakdown. The touch current requirement is independent of the hipot or how much current is flowing during the hipotting. Thanks. Richard ===== Richard Georgerian Compliance Engineer Carrier Access Corporation