In message <200910022318.n92niuh4012...@hormel9.ieee.org>, dated Fri, 2 Oct 2009, Mark Briggs <mbri...@elliottlabs.com> writes:
>This has been my take on this issue: If your product-specific standard >addresses a phenomenon that is also addressed in a generic standard >then you do not have to apply that generic standard. Correct; product and product-family standards take precedence over the Generics, but every effort is required on the part of the standards-makers to avoid any unjustified differences. > >When the product specific standard uses a generic or product standard >as a measurement standard you use that referenced standard just as you >would any other basic standard (e.g. the EN 61000-4-x series of >standards, none of which are listed in the OJ). You only concern >yourself with testing to the version referenced by your product >standard. In this particular case we are talking about EN 61000-3-2 >and -3, but the list of product/generic standards that may be in the OJ >but that are also used as basic standards includes EN 55022 and EN 55011. Correct, but.... > >For example: >EN 300 386 and EN 61326 both address emissions related to AC current >harmonics, therefore I do not have to use EN 61000-3-2 (the "generic" >standard for AC current harmonics) .... 61000-3-2, -3, -11 and -12 are actually product-family standards, the 'family' being everything intended to be connected to the public mains supply. >as listed in the OJ, or reference it on the DoC. This assumes that I >have applied the requirements for AC current harmonics detailed in the >product standard using the methods referenced within my product >standard. Correct. > >EN 55022, on the other hand, does not address emissions related to AC >current harmonics so I need to apply the EN 61000-3-2 standard as >referenced in the OJ, and list both standards on my DoC. Correct. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Things can always get better. But that's not the only option. 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ 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 <emcp...@socal.rr.com> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
