Hello Doug,
It is nearly impossible to specify classes of components that are always safety critical. What makes a component critical is its purpose. Is it part of a safeguard that protects somebody from a hazard? Take a look at Rich Nute’s column in the June 2007 newsletter for the Product Safety Engineering Society. It covers the subject quite well. http://ewh.ieee.org/soc/pses/Downloads/newsletters/07V3N2.pdf Ted Eckert Compliance Engineer Microsoft Corporation ted.eck...@microsoft.com The opinions expressed are my own and do not necessarily reflect those of my employer. From: Doug Kramer [mailto:dkra...@nceelabs.com] Sent: Thursday, November 20, 2008 6:43 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Critical Components Are there any IEC (or other accepted references) documents that define what constitutes “critical components” in terms of product safety? What drives calling out a part on a “critical components” list? I would contend that it is any component of a system where the removal or substitution could change the compliance of the product relative to the applicable safety standard. Any thoughts? Doug Kramer P Please consider the environment before printing this e-mail. - 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.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@ptcnh.net> 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.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@ptcnh.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com>
