This is a multi-part message in MIME format.
http://www.ieee-pses.org/symposium http://www.emc2004.org/ --------------------------------------------------
Amendment 2 of EN 61000-4-4 isn't "mandatory" under EN 55024, which calls out the 1995 version of IEC 61000-4-4 (EN 61000-4-4). Jim Hulbert Pitney Bowes "Chris Faust" <[email protected]> "Chris Faust" <[email protected]> Sent by: [email protected] 07/16/2004 10:01 AM To <[email protected]>, <[email protected]> cc Subject Re: Just published by the IEC http://www.ieee-pses.org/symposium http://www.emc2004.org/ -------------------------------------------------- Well, there's EN 61000-4-4 Amendment 2 (2001) which adds the 1000 Ohm waveform verification. That's already in effect. Amendment 2 is mandatory for CE marking as of July 1, the date of withdrawal for the old standard. As Bob said, check with the manufacturer of your burst tester to see if it's still compliant. Then there's also a final draft edition 2.0 (77B/419/FDIS) that I think is out for vote right now. Among other things, this edition would add the 100kHz spike frequency, fix the tolerance on the 1000 Ohm attenuator, and add common mode injection. This one is still a little ways out in the future, but again it's worth checking to see if your existing equipment would be compliant. Best Regards, Chris Christopher M. Faust EMC Product Manager / North American Sales Manager Hipotronics, Inc. - Haefely EMC Division 1650 Route 22 Brewster, NY 10509 Tel: (845) 279-3644 x264 Fax: (845) 279-2467 Email: <mailto:[email protected]> [email protected] <http://www.haefelyemc.com/> www.haefelyemc.com >>> Bob Richards <[email protected]> 07/16/04 09:08AM >>> http://www.ieee-pses.org/symposium http://www.emc2004.org/ -------------------------------------------------- Ian, I remember seeing the draft document for the 61000-4-4 standard. The big things that stick in my mind are the addition of a 100kHz burst frequency (with a shorter burst duration), and also a waveform verification done into a 50 ohm load as well as a 1000 ohm load. Some existing generators will meet the new requirement, some won't. I have not seen the final document, so I can't comment on that. Bob Richards, NCT EMC Technician Square D. "Gordon,Ian" <[email protected]> wrote: http://www.ieee-pses.org/symposium http://www.emc2004.org/ All The IEC website shows that the ESD and fast transient testing standards have been revised. See the following link http://www.iec.ch/online_news/justpub/jp_2004/jp.htm#emc. However, it doesn't give any details of the changes. Does anyone know what these changes are? Furthermore, in answer to an earlier posting of my own (!) it is not permitted to copy British Standards under the CLA scheme. Publishers must agree to join the scheme and the following is a link to publishers which have chosen not to join the scheme http://www.cla.co.uk/have_licence/support/excluded.html Ian Gordon *********************************************************************** This email is confidential and intended solely for! the use of the individual to whom it is addressed. Any views or opinions presented are solely those of the author and do not necessarily represent those of the BOC Group plc or any of its affiliates. If you are not the intended recipient, be advised that you have received this email in error and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you have received this email in error please return the message to the sender by replying to it and then delete the message from your computer. This footnote also confirms that this email message has been checked by anti-virus software for the presence of computer viruses. However, the BOC Group plc or any of its affiliates accepts no responsibility for any virus or defect that might arise from opening this e-mail or attachments. ------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. IEEE PSES Main Website: http://www.ieee-pses.org/ To post a message send your e-mail to [email protected] Instructions for use of the list server: 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: Ron Pickard: [email protected] Dave Heald: [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
<<graycol.gif>>
<<ecblank.gif>>
