Ralph McDiarmid <[email protected]> wrote (in <[email protected]>) about 'AC system impedance', on Thu, 21 Jul 2005:
>It would be useful if NA did a similar study. I'm surprised that >powerline harmonic generation are not yet a concern for consumer >equipment in Canada or USA. In USA, IEEE 519 seems to provide as much control as is considered necessary. The situation in Canada is different, and puzzling. Hydro Quebec experts are deeply involved in the work of IEC SC77AWG1 (including a major contribution to IEC 61000-4-7), and press strongly for limitations on harmonic current emissions, even though IEC 61000-3-2 applies only to 50 Hz systems. -- 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 [email protected] 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 [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
