Re: [PSES] safety 60950 and surge suppression circuits

[Richard Nute]

Hi Bill: On 5/21/2013 7:34 PM, Bill Owsley wrote: A surge into a 300 volt SPD transfers that surge voltage to the open ground (chassis) and there is now a hazard !!! An SPD will not operate (conduct) into an open ground. One would have to be touching the chassis (and thus grounding it) at the instant the transient occurs in order to have current pass through the body.  Some authorities might say that the transient would cause an OUCH! but not an injury. 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://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>