Hi Ken:
If the dc lines are subject to lightning, e.g., solar panels, then transients can exist on the dc line. If the dc powers several equipments, then switching transients can exist on the dc line. The more equipment is connected to the dc, the more switching transients. In both situations, the transient voltages are likely to be microseconds duration. Best regards, Rich From: Ken Javor <ken.ja...@emccompliance.com> Sent: Wednesday, August 15, 2018 9:34 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] hipot test There is a huge difference between a transient lasting microseconds and a dc application. The cap will load (to some extent) a transient, but it can't load dc. Ken Javor Phone: (256) 650-5261 - ---------------------------------------------------------------- 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 <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
