Maybe a clarification sheet for IEC 60079-15 is needed.
Best regards Helge Knudsen Denmark From: John Cochran [mailto:jcoch...@strongarm.com] Sent: 28. september 2015 03:31 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Low Power exemption for ATEX / IECEx In IEC 60079-15 Clause 13, Low power device or components are exempt from evaluation of creepage and clearance, as defined in Clause 6.4 of the standard. I designed a computer system which uses an i7 quad-core CPU module (COMe). The problem is the module draws 37W of power, and Note 1 in Clause 13 states Low power is typically considered 20W or less. The word typically bothers me, but also the fact some competitors have gotten their systems certified with a 45W i7 quad-core CPU. The notified body we are using is insisting that our CPU cannot be approved. Does anyone in the group have experience with certifying a higher wattage CPU module for international hazardous locations? Thanks, John Cochran STRONGARM Designs Ingen virus fundet i denne meddelelse. Kontrolleret af AVG - www.avg.com Version: 2015.0.6140 / Virusdatabase: 4419/10713 - Udgivelsesdato: 27-09-2015 - ---------------------------------------------------------------- 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) <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 <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> - ---------------------------------------------------------------- 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>
