Hi. What we practise here is the unit go through functionally test and if fails, repair is done.Once repair,the unit will be going through the functional test again.Once it passed,it may go through hipot test which is placed at end of the test.Hipot test is encouraged to be done only once.So it is best to put the test at the last stages before shipping. Hope this helps, Alice S
Brian O'Connell <boconn...@t-yuden.com> wrote: My last (3) employers have required all repaired or modified units to be "hi-potted". If a unit has been repaired, then the cover was removed, and the unit is no longer "controlled" by the oroginal production hi-pot. luck, Brian -----Original Message----- From: richwo...@tycoint.com [ mailto:richwo...@tycoint.com] Sent: Wednesday, May 21, 2003 1:46 PM To: emc-p...@majordomo.ieee.org Subject: Safety testing after equipment repair Management is asking me if we really need to perform certain safety inspections and tests after the equipment is repaired. Of course, the answer is that the inspections and/or tests are a prudent action to ensure continued safety of the product. Then they ask "Does anyone else do it?" Good question. Here is what we do. We intentionally tried to minimize the amount of inspections and testing. The protocol consists of certain visual inspections for such things as damaged insulation and missing fasteners; and a hypot test is specified only if the safety critical part being changed would be stressed by the test. So, let me pose the question - Does your company perform specified safety inspections and/or tests after repair of mains circuits? Richard Woods _____ <http://uk.rd.yahoo.com/mail/tagline/s maritans/?http://www.samaritans.org/support/donations.shtm> It's Samaritans' Week. Help Samaritans help others. Call 08709 000032 to give or donate online now at http://www.samaritans.org/support/donations.shtm
