> -----Original Message-----
> From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John
> Woodgate
> Sent: Friday, November 06, 2009 10:59 AM
> To: EMC-PSTC@LISTSERV.IEEE.ORG
> Subject: Re: [PSES] Mains harmonics & flicker test equipment
> 
> In message
> The change from the 1991 to 2002 editions was to widen the measurement
> bandwidth by a factor of TEN times. No equipment manufacturer realised
> the implications; millions of products that operate without any
problem
> on the network fail the '2002' interharmonic grouping test.
> 
> All the electricity suppliers represented on the IEC committee are
> content for the 'grandfather' clause to remain until a satisfactory
> solution is found. Intensive work is being carried out continuously to
> find that solution.
> --
> OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk
> John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
> Help stamp out intolerance!



When "millions of products that operate without any problem" suddenly
become non-compliant with a standard, doesn't that mean that the
adjustment should be made to the standard and not the products?


Ed Price
ed.pr...@cubic.com     WB6WSN
NARTE Certified EMC Engineer
Electromagnetic Compatibility Lab
Cubic Defense Applications
San Diego, CA  USA
858-505-2780
Military & Avionics EMC Is Our Specialty

-

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>

Reply via email to