I read in !emc-pstc that Wagner, John P (John) <johnwag...@avaya.com> wrote (in <4203D61676D0AE468AA5CEA90A891C13012FAB6A@cof110avexu4.global. avaya.com>) about 'PFC or Harmonic Current Limitations outside Europe' on Fri, 30 Aug 2002:
>IEEE 519 is a Recommended Practice. It suggests voltage distortion limits at >the Point of Common Coupling based upon the customer load vs short circuit >current capabillity. It has nothing to do with paroduct harmonics. Well, that last sentence is a bit misleading. IEEE 519 certainly doesn't apply to individual products (unless someone had a single high-power product as his whole load), but the OP asks about 'PFC or Harmonic Current Limitations outside Europe', not specifically about limits for products. Clearly, the harmonic currents produced by the products on a site are responsible for *part* of the voltage distortion measured at the site's PCC, the rest being due to all the other non-linear loads on the system. >It is not a >regulation, but electric utilities may adopt it as a company requirement for >customers to meet. Yes, a 'de facto standard' or 'contractually enforced requirement'. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
