Dear All The latest version of EN 61000-4-7 includes interharmonics.
Electromagnetic compatibility (EMC) Part 4-7: Testing and measurement techniques General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto At present European standards such as EN 61000-3-2 do not require the measurement of interharmonics. A manufacturer of harmonics measuring equipment has told me that interharmonics is required for any testing that is being carried out for the Japanese market, particularly Japan Pharmaceutical Affairs Law, and will be required in the future in Europe. Can anyone confirm this? As I understand it, EN 61000-4-7 will not be listed in the Official Journal. Therefore, interharmonics would only be required if specified in standards such as EN 61000-3-2 or EN 61000-3-12. And as far as I am aware, there is no proposal to include interharmonics in either of these standards. Am I correct in these assumptions? Many thanks John McAuley Compliance Engineering Ireland Ltd www.cei.ie ***************************************************************** DISCLAIMER: The information contained in this e-mail may be confidential and is intended solely for the use of the named addressee. Access, copying or re-use of the e-mail or any information contained therein by any other person is not authorised. If you are not the intended recipient please notify us immediately by returning the e-mail to the originator ________________________________ - 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 emc-p...@ieee.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...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
