Vehicular audio waring is covered in UN regulation #28 and NHTSA (DOT) 812-209.
Fire alarm stuff can be found in UL1480 and CAN S525; and other stuff in UL464A, UL1971, CAN S526; but have no direct experience with application of these particular standards. Brian From: Doug Powell [mailto:doug...@gmail.com] Sent: Monday, February 06, 2017 3:58 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Acoustic Warning - sound pressure level All, I recall some time ago reading information on minimum sound pressure level for acoustic warning in noisy environments. It was possibly in an IEC standard or a handbook making recommendations. As I recall the recommendation was something like warning bells, horns and klaxons should be 3 to 6 dB SPL above the ambient noise level in the immediate work area. If this is not possible or operators may be wearing hearing protection, then visual warnings should also be included. Can someone point me in the right direction? Thanks, Doug -- Douglas E Powell 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> 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> - ---------------------------------------------------------------- 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>
