John, Since 1.05.2004 I am all the time trying to understand how to implement EMC directive in my work. Until now I understood that I can use the EN xxxx standard partially only if the certified (notified, accredited ?) body is used in the process and they accept it.
Do really the manufacturer can claim that the standard can be used only partially ? Where it is written ? Regards, Piotr Galka ----- Original Message ----- From: "John Woodgate" <j...@jmwa.demon.co.uk> To: <emc-p...@ieee.org> Sent: Tuesday, August 30, 2005 9:25 AM Subject: Re: Condenser Microphones - Euro/USA EMC Emission Requirements > Kevin Richardson <kevin.richard...@ieee.org> wrote (in > <nebbihdflagbliikmlbkceofffaa.kevin.richard...@ieee.org>) about 'Condenser > Microphones - Euro/USA EMC Emission Requirements', on Tue, 30 Aug 2005: > >>Can anyone advise if professional grade condenser microphones (cable not >>wireless) are required to comply with EMC emission requirements in Europe >>and the USA considering they typically do not contain any clock or >>oscillators etc. > > For Europe, they are required to comply with emission requirements. >> >>For Europe at least, I suspect many companies test to EN 55103-1. > > I hope so; that IS the correct standard. > >>Even though these devices do typically incorporate a linear amplifier that >>contains, what may be termed by some, "active" components there are still >>no clocks or oscillators. Would it be fair to assume therefore, that for >>these devices, because they do not include any clocks or oscillators, the >>emission testing is not necessary. > > Manufacturers are entitled to claim (and document) that, based on your > reasoning. The EMC Directive does not mandate testing; its only > requirement is that the emissions and immunity are such that the > 'essential requirements' are met. > > There is no need for emission testing, but, of course, immunity testing is > likely to be required. > > I often point out to clients that all-analogue solutions, not only in > audio, can save testing costs and speed time to market because of this > consideration. > -- > Regards, John Woodgate, OOO - Own Opinions Only. > Deadlines are 90% of deadliness. > http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk > > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society > emc-pstc discussion list. Website: http://www.ieee-pses.org/ > > To post a message to the list, send your e-mail to emc-p...@ieee.org > > Instructions: http://listserv.ieee.org/listserv/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: > > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > > All emc-pstc postings are archived and searchable on the web at: > > http://www.ieeecommunities.org/emc-pstc This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/listserv/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: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
