Hi Scott:
I don't know of any regulations or standards that require hi-pot testing after repair. My advice to my clients is to hi-pot test if the primary circuits have been disturbed in any way. If repairs were to secondary circuits, then hi-pot is not necessary. However, repair centers seem to like consistency, so they impose hi-pot tests on all repaired equipment. Hi-pot after repair means that the unit is likely to have 2 hi-pots at that point in its lifetime. The small number of repeated tests will have no detectable degradation consequences to the insulations. Note that some businesses require periodic safety tests on their equipment, including hi-pot. I'm not aware of any early hi-pot failures in such situations. Same comments apply to the grounding continuity test. Best regards, Richard Nute Product Safety Consultant San Diego > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf > Of Scott Douglas > Sent: Thursday, May 29, 2008 5:46 PM > To: 'EMC PSTC' > Subject: Hi pot on Customer Repairs > > > For equipment under EN/UL 60065, when a customer product > comes back for > repair and after the repair is complete, is there any > requirement that > the unit have hi pot and ground continuity done before > returning it to > the customer? These are Class I products requiring a Protective Earth > connection. If there is a requirement, can you point me to > the specific > reference? > > Thanks in advance for any and all comments. > > Best regards, > > Scott Douglas > [email protected] > > - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
