On 6/24/2014 6:55 AM, Kunde, Brian wrote:
What does "stressed only by d.c." mean? How are Mains Circuits stressed by d.c.?
Hi Other Brian: One must distinguish between ac mains and dc mains. dc mains are not subject to the same overvoltages as are ac mains. Therefore, dc mains are not as "stressed" as ac mains. (ac mains don't have dc, so ac mains cannot be stressed by dc.) This concept is not widely recognized by those writing requirements. Best regards, Rich - ---------------------------------------------------------------- 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://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://www.ieee-pses.org/list.html (including how to unsubscribe) 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>
