I'm trying to determine whether to include measurement of interharmonics as a requirement for EN 61000-3-12.
EN 61000-3-12:2005 does not include a dated reference to IEC 61000-4-7. Whereas the current version EN61000-3-2 listed in the OJ references IEC61000-4-7:1993. The difference being measurement of interharmonics or not, or as was explained a month or so ago on this list-server, the difference between a measurement band width of 50Hz and 5Hz. As I understand, when the referenced standard is not dated, you are to use the most current version. To further complicate matters (in my mind), IEC 61000-4-7:2002, Section 7, speaks to a "Transitional period." "The use of existing measurement instruments based upon the requirements given in IEC 61000-4-7 (1991) continues to be permitted until the next revision of this standard. ............." SO... Hypothetically speaking, let's say I'm testing a product using measurement equipment that is designed to include or disable (equipment can test to both IEC61000-4-7:1993 and IEC 61000-4-7:2002) measurement of interharmonics and a product fails to meet the requirements of EN61000-3-12. However, when interharmonic evaluation is disabled the product meets the requirements of EN61000-3-12. What is the compliance status of that product? I'd appreciate any clarification. Regards, David Spencer Xerox Corp - 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/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 ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
