It's possible the noise quite soon after the door is opened is still below the limit for unintentional or incidental emitters. That's enough to interfere with radiotelescopes.
Cortland Richmond -----Original Message----- >From: "Wiseman, Joshua E BIS" <[email protected]> >Sent: May 15, 2015 8:55 AM >To: [email protected] >Subject: Re: [PSES] [External] Re: [PSES] Interference Caused by Microwave Oven > >IEC/EN 60335-2-25 and IEC/EN 60335-2-90 have limits on the radiation emitted >from the microwave with the door open. This includes testing with the seal >broken and the door closed, when possible. The limits are pretty strict so I >would be a little surprised by this. I haven’t read the article, nor do I >know the history of the standard so there maybe something there too. > >Josh > >-----Original Message----- >From: John Woodgate [mailto:[email protected]] >Sent: Thursday, May 14, 2015 5:42 PM >To: [email protected] >Subject: [External] Re: [PSES] Interference Caused by Microwave Oven > >In message <[email protected]>, dated Thu, 14 May 2015, Doug Powell ><[email protected]> writes: > >>My question is this. If the RF generated inside the oven does not stop >>prior to the opening of the RF seal on the door, which testing is >>responsible to identify this problem, EMC or the Safety testing > >Not 'either/or': emission with the door open violates CISPR 11/EN 55011, it's >also a violation of the Section of IEC/EN 60335-2 (too late here to look it >up) and potentially a violation of the regulatory EMF exposure limits as >measured according to IEC 62233. >-- >OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk When I >turn my back on the sun, it's to look for a rainbow John Woodgate, J M >Woodgate and Associates, Rayleigh, Essex UK > >- >---------------------------------------------------------------- >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 ><[email protected]> > >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 <[email protected]> >Mike Cantwell <[email protected]> > >For policy questions, send mail to: >Jim Bacher: <[email protected]> >David Heald: <[email protected]> > >- >---------------------------------------------------------------- >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 ><[email protected]> > >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 <[email protected]> >Mike Cantwell <[email protected]> > >For policy questions, send mail to: >Jim Bacher: <[email protected]> >David Heald: <[email protected]> - ---------------------------------------------------------------- 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 <[email protected]> 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
