Hi Ian:
Since the current is less than 0.2 A, sub-clause 7.2 does not apply. The wall-wart therefore complies with 60065. You don't need to push for acceptance under 60950 is acceptable for 60065. (Of course, you need to deal with the test house delicately since they overlooked this exception to the requirement.) Rich From: McBurney, Ian [mailto:[email protected]] Sent: Wednesday, January 06, 2016 2:05 AM To: [email protected]; [email protected] Subject: RE: [PSES] IEC 60950-1 PSU acceptance Hello Rich. The product only consumes 5W so the current is well below the 0.2A limit. I'm assuming the 0.2A limit is ac mains current. Regards; Ian McBurney Design & Compliance Engineer. Allen & Heath Ltd. Kernick Industrial Estate, Penryn, Cornwall. TR10 9LU. UK T: 01326 372070 E: [email protected] <mailto:[email protected]> From: Richard Nute [mailto:[email protected]] Sent: 05 January 2016 18:58 To: McBurney, Ian <[email protected] <mailto:[email protected]> >; [email protected] <mailto:[email protected]> Subject: RE: [PSES] IEC 60950-1 PSU acceptance Hi Ian: Clause 7.2 only applies if the steady-state current exceeds 0.2 amps. Is this the case with your wall wart? Happy New Year, Rich From: McBurney, Ian [mailto:[email protected]] Sent: Tuesday, January 05, 2016 3:29 AM To: [email protected] <mailto:[email protected]> Subject: [PSES] IEC 60950-1 PSU acceptance Dear Colleagues. A happy new year to you all! I have a problem with a well-known safety testing agency regarding an AC/DC "wall wart" type adapter. The adapter is fully approved to IEC/UL 60950-1 but in this case I am using it to power a product that is being evaluated to IEC/UL 60065. The agency has informed me that the adapter has failed approval due to the softening temperature of the insulating material supporting parts of the adapter as specified in clause 7.2 of IEC 60065. I thought there was an agreement that if a power supply met the requirements of IEC/UL 60950-1 it would be acceptable for use with products tested to IEC/UL 60065 provided it was used within its performance specification. Is this belief incorrect? Many thanks in advance. Ian McBurney Design & Compliance Engineer. Allen & Heath Ltd. Kernick Industrial Estate, Penryn, Cornwall. TR10 9LU. UK T: 01326 372070 E: [email protected] <mailto:[email protected]> Allen & Heath Ltd is a registered business in England and Wales, Company number: 4163451. Any views expressed in this email are those of the individual and not necessarily those of the company. - -------------------------------------------------- -------------- 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]> > Allen & Heath Ltd is a registered business in England and Wales, Company number: 4163451. Any views expressed in this email are those of the individual and not necessarily those of the company. - ---------------------------------------------------------------- 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]>
