One more thought - Try searching IEEE Xplore. There are many articles listed when I searched for "Hipot", including one specifically related to assessing aging in systems using hipot.
See this link for one article that looks promising: http://bit.ly/ndyh22. -- Doug Nix, A.Sc.T. IEEE Engineering & Human Environment Joint Chapter Toronto Section, Ontario, Canada http://ewh.ieee.org/r7/toronto/chapters/humanenv.htm d...@ieee.org mobile (519) 729-5704 fax (519) 653-1318 Find me LinkedIn at http://www.linkedin.com/in/dougnix Want to meet? http://tungle.me/dougnix Fostering Technological Innovation and Excellence for the Benefit of Humanity. On 12-July-2011, at 16:33, Brian Oconnell wrote: > 1. I was not the one asking the question, I provided a reply to the original > post. > 2. Your attached article has problems with basic physics, and was designed > to sell the vendor's test equipment. > 3. The purpose the PSES listserv/forum is to SHARE information amongst our > colleagues, unless off-topic or of non-PC content. > 4. I was hoping someone older, wiser, and respected would call the > di-electric test non-relevent as a metric for insulation aging and suggest > the Insulation Resistance test, which can be done at a very low voltage. > 5. Klingons do not use insulation. > 6. There is a Python class for the 'luck' calculation; it is not good or > bad, it is. > > Brian > > -----Original Message----- > From: --- removed --- > Sent: Tuesday, July 12, 2011 1:10 PM > To: 'oconne...@tamuracorp.com' > Subject: RE: [PSES] High voltage testing by any name > > Brian, > > Perhaps the attachment will help. > > The full name is Dielectric Voltage Withstand Test, and 'Withstand' is the > same as 'Hi Pot'. I am not clear about the Arc detect, not the same as Arc > Flash which maybe something else. > > What you are testing is not the wiring but the insulation around the wiring. > > My feeling is if it is strictly wiring and not capacitors or other > semiconductors are involved time may not be factor, however UL for ITE > product requires higher levels for 1 sec testing and lower for 1 min. Not > sure there is any value for going longer. > > Some testers recommend doing an 'insulation resistance test' before and > after the hi-pot to give some validation that the insulation was not > compromised. > > The test can be viewed as blowing up a balloon and looking for leaks, and > yes if you blow it up too much (rated value) you can compromise the > integrity of the insulation. > > I would look up the various tester company websites and read their User > Manuals or other technical literature. > > See QuadTech, Slaughter, Acoustic Research AR. > > Also search for terms like CE Magazine safety testing dielectric voltage > withstand test. > > Good Luck! > > -----Original Message----- > From: Brian Oconnell [mailto:oconne...@tamuracorp.com] > Sent: Monday, July 11, 2011 9:43 AM > To: EMC-PSTC@LISTSERV.IEEE.ORG > Subject: Re: [PSES] High voltage testing by any name > > 1. Paschen's Law > 2. IEEE PSES symposium presentations > 3. Klaus Stimper, VDE, "The Physical Fundamentals of Low-Voltage Insulation > Coordination" > 4. xkcd.com/643 > 5. google.com/support/websearch/ > 6. python.org > > I am not certain of the meaning "pulse testing"; perhaps you are referring > to 'surge' testing, which is can be considered a different species. > > Brian > > -----Original Message----- > From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Mark Hone > Sent: Monday, July 11, 2011 3:21 AM > To: emc-p...@ieee.org > Subject: High voltage testing by any name > > Colleagues - > > I have been specifying routine Voltage Withstand tests to UK Naval Standards > for years and I have recently been called upon to explain them in detail and > to say if their use will prove that wiring is too old/stressed to be safe to > use: I have realised my knowledge isn't as comprehensive as it should be. > > We have also had a recent thread here on the (in)advisability of repeat high > voltage testing which has piqued my interest even more in the subject. > > Whilst Google-is-my-friend, Google hasn't thrown up for me* a reference to a > good, impartial, thorough overview of this particular test - for instance > answering the questions: > > - Test duration: a few seconds, a few tens of seconds, two minutes > (different in different standards) - pros and cons other than the obvious? > - Under what circumstances is pulse testing advised and when > continuous stress testing? > - When is it a test of dielectric and when a test of creepage and > clearances? > - Is there a real difference between Voltage > Withstand/Flash/Dielectric Strength/HiPot tests? Or any implied one? > > So, may I ask if anyone can point me to good, impartial reading sources for > my intellectual (!) improvement? > > With thanks in advance, > > Best regards, > > Mark > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://product-compliance.oc.ieee.org/ > Graphics (in well-used formats), large files, etc. can be posted to that URL. > > Website: http://www.ieee-pses.org/ > 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 <emcp...@radiusnorth.net> > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher: <j.bac...@ieee.org> > David Heald: <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ 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 <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
