Also note that there are rules in the standards for maintenance lighting circuits which are not de-energized with the main disconnect switch. Again, the non-de-energized circuits are not required, but permitted.
-Dave From: Douglas Nix [mailto:d...@mac.com] Sent: Tuesday, April 25, 2017 2:19 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Interior lighting for large control panels Doug, None of the machinery standards require lighting in the panel, they simply permit it where the designer wants to use it, and provide rules for the installation should you choose to install it. A risk assessment should be the deciding factor, and any customer preferences for the provision of lighting. Have a look at the questionnaire provided in the Annexes to IEC 60204-1 for development of the electrical system specification - I think you’ll get the idea. -- Doug Nix d...@mac.com<mailto:d...@mac.com> (519) 729-5704 "Imagination is more important than knowledge. For knowledge is limited to all we now know and understand, while imagination embraces the entire world, and all there ever will be to know and understand." Albert Einstein On 20-Apr-17, at 23:42, Doug Powell <doug...@gmail.com<mailto:doug...@gmail.com>> wrote: All, I just finished reviewing older editions of UL 508 (2005) and UL 508A (2003) for any requirements specifically for interior lighting of large cabinets. This would be for cabinets large enough to be a container with personnel doors. I do see requirements for how to implement "maintenance lighting" if provided but not a requirement specifically stating maintenance lighting "shall be provided". Also, if the latest editions of the UL standards now include sections on risk assessment, I can see how a maintenance person who is inadvertently entrapped (e.g. wind closed the door) would then could become disoriented and egress lighting would be important to mitigate the hazard. Any guidance on mandatory lighting requirements for maintenance is greatly appreciated. Thanks, Doug -- Douglas E Powell doug...@gmail.com<mailto:doug...@gmail.com> http://www.linkedin.com/in/dougp01 - ---------------------------------------------------------------- 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<mailto: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<mailto:sdoug...@ieee.org>> Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto: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<mailto: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<mailto:sdoug...@ieee.org>> Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto: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>
