1. measurement uncertainty 2. site variance (NOT part of #1) 3. customer spec 4. known (empirical) margin for intended end-use installation 5. because the Klingon Emperor so said
Brian From: Itzenheiser, Jerry (GE Healthcare) [mailto:gerald.itzenhei...@med.ge.com] Sent: Monday, October 12, 2015 12:26 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Stricter limits than legal (CISPR11, IEC, etc,) Where? Hello EMCers, I would like to ask. Is there anyone out there that tests to stricter limits than the legal (CISPR, IEC, etc.) limits? If so, what was the rationale behind selecting the stricter limits? Our engineering teams are curious as to where the stricter recommended limits come from, such as the 6dB margin for emissions testing. Thanks, Jerry Itzenheiser Jr EMC Technician - Waukesha GE Healthcare Global Engineering Technologies EMC Laboratory Waukesha T + 262-548-2217 M + 262-720-8846 gerald.itzenhei...@med.ge.com www.ge.com 3000 N. Grandview Blvd. Mail Code W618 Waukesha, WI 53188 - ---------------------------------------------------------------- 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>
