Hello all,
Thanks for all the interesting replies, much appreciated. All the best James From: Gert Gremmen; ce-test <[email protected]> Sent: 21 March 2018 11:07 To: [email protected] Subject: Re: [PSES] EMC tests called up in Safety standards The EMC tests as called out in 60335 are safety tests, contrary to those called out under the EMCD that are functional tests only. For Europe , one can discuss about the necessity of those tests, as the EMCD requires testing in all operating modes including OFF or standby and as long as one can prove that an apparatus remains functional, it also could be considered safe. I have not seen many examples of a compliant functional apparatus that has become unsafe during an immunity test, but cannot exclude that this may happen either. Hence this test in 60335, that might also come into view during the required risk analysis as called out in the new LVD. For Europe only, of course. The difference between functional and safety related EMC is an evolving discussion, lately triggered by accidents with hybrid and autonomous driving cars. Gert Gremmen On 20-3-2018 10:27, James Pawson (U3C) wrote: Hello experts, I note that EN 60335-1 (household and similar appliances) specifically calls up EMC immunity tests in clause 19.11.4 where the controls for the EUT are set in the "off position" and a set of immunity tests are applied. For something that controls a heating element, I can see why this would be a concern. A couple of questions / thoughts: * It sounds like this at least doubles the amount of immunity testing required - one with the EUT "on" and one with it "off". Would that be how you read this? * Are there any other safety standards that explicitly call up EMC tests within them like this one does? This is the first one I've come across where this is the case but I'm not very familiar with safety standards in general. Thanks and all the best, James - ---------------------------------------------------------------- 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] <mailto:[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://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected] <mailto:[email protected]> > Mike Cantwell <[email protected] <mailto:[email protected]> > For policy questions, send mail to: Jim Bacher <[email protected] <mailto:[email protected]> > David Heald <[email protected] <mailto:[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] <mailto:[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://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected] <mailto:[email protected]> > Mike Cantwell <[email protected] <mailto:[email protected]> > For policy questions, send mail to: Jim Bacher <[email protected] <mailto:[email protected]> > David Heald <[email protected] <mailto:[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://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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
