I found an interesting old document “CISPR Report of the Plenary Session held in The Hague from 18th to 21st November 1958”. It mentions a Study Question 18 (Brussels 1956): “what method should be used when applying limits for radio interference to appliances in large-scale production?” I could not find anything more on this, but it looks like a kick-off for the statistical evaluation.
And no, I was not there. Regards, Ari Honkala SESKO From: Ghery S. Pettit [mailto:n6...@comcast.net] Sent: maanantai 18. marraskuuta 2019 21.50 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 80/80 rule I know it is in VDE 0871/6.78, so it dates back to at least June of 1978. I don’t know about anything prior to that. VDE 0871/6.78 is also the only place I’ve seen a requirement that if a single unit is tested then a 2 dB margin is required. Ghery S. Pettit iNCE Pettit EMC Consulting LLC From: John Woodgate <j...@woodjohn.uk<mailto:j...@woodjohn.uk>> Sent: Monday, November 18, 2019 11:47 AM To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] 80/80 rule I agree: I'm almost certain that it is German in origin, and I'm sure it dates back to the 20th Century, possibly as early as 1960. Best wishes John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk<http://www.woodjohn.uk> Rayleigh, Essex UK On 2019-11-18 19:44, John Shinn wrote: If my memory serves me right, as I recall, the 80/80 rule was in at least one of the VDE standards regarding radiated emissions. I can’t recall the number or name. This is going back to the late ‘70s or so. John Shinn Retired Sent from my iPhone On Nov 18, 2019, at 9:55 AM, John Woodgate <j...@woodjohn.uk><mailto:j...@woodjohn.uk> wrote: Can someone tell me when the 80/80 rule was introduced into CISPR standards and if possible, a bit more detail than just the date, please? -- Best wishes John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk<http://www.woodjohn.uk> Rayleigh, Essex UK - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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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>
