Everyone A crucial reason that ENs are required for basic standards is related to dates of withdrawal.
Where a basic standard is referenced as an undated reference from a product family or generic standard, a new edition of the basic standard would become effective immediately, were it not for the transition period in the EN basic standard. IEC standards do not have transition periods. Best wishes Brian Brian Jones EMC Consultant From: [email protected] [mailto:[email protected]] On Behalf Of John Woodgate Sent: 19 April 2007 14:24 To: Leber Jody-G19980 Cc: [email protected] Subject: Re: OJ and EN Standards In message <[email protected]>, dated Thu, 19 Apr 2007, Leber Jody-G19980 <[email protected]> writes: >So if a product immunity standard was available (EN 55024 or EN >60601-1-2 for example) we follow the referenced standards in those >documents and if I need to do ESD with no product standard to use the >latest CENELEC document? If there is no product standard, you apply the relevant Generic standard, which will refer to EN 61000-4-2 for ESD test methods. > Maybe I am missing something but for CE Marking I thought only >standards in the OJ could be used. If that is correct where would the >EN version of 61000-4-2 ever be needed? I'm not sure I understand your point. There are two reasons why CENELEC produces EN versions of the IEC 61000-4 series: 1. CENELEC earns money from the sale of the ENs through the National Committee implementations; 2. It is POSSIBLE that the European National Committees might want Common Modifications to these IEC standards. Luckily, that hasn't happened yet, and there is almost no enthusiasm for the idea. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk There are benefits from being irrational - just ask the square root of 2. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex 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/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 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 ______________________________________________________________________
