Thermal stuff probably came from 60065, while much of the electrical stuff seems to have come from 60950. So someone such as Mr. Nute, TC108 et al, would need to provide the empirical basis for these numbers for sources from external circuits. Should be noted that 'energy' and 'power' cause different problems using different vectors - so think in terms of where the power is coming from and where the power is going. Time does not actually exist, but the requirement is for > 3 sec.
Mr. Nute, et al, Is "short term" power still not defined in 3d edition? Brian From: Willard, Bradley [mailto:bradley.will...@zebra.com] Sent: Thursday, July 26, 2018 2:29 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] PS1 limit? Hello Everyone, I'm looking for guidance on how the PS1 limit of 15 watts for 3 seconds in IEC 62368-1 was determined. Thanks in advance! Best regards, Brad - ---------------------------------------------------------------- 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>
