It does not make a difference. I have also seen standards with 6 V mentioned. I also do not think you will get variations in impedance results if you test inject a current of 5 A, 10 A or as I have seen a manufacturer do it at 40A as they mentioned that a Canadian test organization insisted they do it as part of their production-line tests!!!
Sent from my iPhone Peter S. Merguerian [email protected] Go Global Compliance Inc. www.goglobalcompliance.com (408) 931-3303 On Mar 29, 2013, at 10:08 AM, Jose Moreno <[email protected]> wrote: > Hello, > > According to EN 60950, the resistance of the protective bonding conductor has > to be measured with a test voltage not greater then 12V. > > Does anybody have a clue about the rationale for the 12V requirement? > If we measure the current and the voltage drop across the bonding conductor, > what difference does it make if we use 12V or 24V? > > Thanks > - > ---------------------------------------------------------------- > 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 > <[email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used > formats), large files, etc. > > 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 <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> - ---------------------------------------------------------------- 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 <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
