"Gordon,Ian" <[email protected]> wrote (in <e1ba0362b28ed211a1e80008c71ea30603387...@z-160-100-30-252.est.ibm.com>) about 'Harmonics and flicker', on Wed, 9 Nov 2005: >Is it necessary to show compliance with harmonics and flicker >requirements for products even though the product standard applied >specifically omits this?. My concern is that EN61326 requires these >measurements for Class B equipment but specifically does not for Class >A equipment.
The standards for harmonics and flicker (really voltage changes) apply to products that can be expect to be connected to the public Low-Voltage electricity supply. It might be assumed that Class A equipment would always be connected to a 'private' supply, interfacing with the public network only at Medium or High Voltage. But the electricity suppliers are sceptical about that assumption. My recommendation is to apply the standards if it's conceivable that the equipment might be used on the public supply. -- 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: 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
