The way components are integrated in today's products, don't you have to look at what is in the product and not just what family standard it falls in to?
For instance, EN 55014 was originally for motor driven household devices and power tools such as blenders, washing machines and hand drills, but today manufacturers are incorporating high speed electronics into everything. So don't you have to ALSO test to EN 55011 or EN 55022? Refrigerators used to be a motor and a light bulb; but now they have micros running with clock speeds over 100Mhz. The same argument can be made with medical or laboratory equipment. If such a device has a motor in it shouldn't you also consider performing the click test according to EN 55014? The Other Brian From: [email protected] [mailto:[email protected]] On Behalf Of John Woodgate Sent: Wednesday, April 09, 2008 1:30 PM To: [email protected] Subject: Re: Click-noise according to CISPR 14/EN 55014 In message <[email protected]>, dated Wed, 9 Apr 2008, Mark Briggs <[email protected]> writes: >I would disagree with you for instances where you based compliance >around the generic standards' requirements because your product >standard did not address a phenomena that was addressed in the generic >standards, provided that the generic standard was appropriate to your >operating environment. The principle in CENELEC is that product standards take precedence over generic standards. The CENELEC EMC committee and the Commission's EMC Consultant review all product standards for unjustified omissions or unjustified non-conformity with the relevant Generic. So if a phenomenon is not treated in the product standard you do not have to apply the Generic. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Murphy's Law has now been officially re-named The Certainty Principle John Woodgate, J M Woodgate and Associates, Rayleigh, Essex 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 [email protected] 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 [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc LECO Corporation Notice: This communication may contain confidential information intended for the named recipient(s) only. If you received this by mistake, please destroy it and notify us of the error. Thank you. - 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 [email protected] 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 [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
