Richard - You will also note that Note 1 of the list of harmonized standards states:
"Note 1: Generally the date of cessation of presumption of conformity will be the date of withdrawal (dow), set by the European Standardisation Organisation, but attention of users of these standards is drawn to the fact that in certain exceptional cases this can be otherwise." I suppose this is how/why CENELEC put dates in their versions of EN60950 (and possibly others) in the first place, or perhaps Note 1 was included to accommodate CENELEC's habits. It may be that Note 1 will disappear as the EC has their way and older editions of standards scroll off the list. I am still dicing the finer points of language. I will report back whatever I might find and hope that anyone with official and unambiguous information related to this query will step forward. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA [email protected] -----Original Message----- From: Richard Hughes [mailto:[email protected]] Peter, The reason for the removal of the so-called 'certification clause' that was in the Foreword of the various amendments to EN 60950:1992 but is not in the Forward to EN 60950:2000 and EN 60950-1:2002 is as follows: - There was a request from the Commission to remove this text from all standards referenced in the OJEC under the LVD. I have not tried to find the exact text but I can imagine that those who wish to look for it would need access to documents from the CENELEC Technical Board (CENELEC BT). - Although I do not have all the list of standards published in the OJEC in relation to the LVD, I do recall that it was not always the case that the list had the column entitled "Date of cessation of presumption of conformity of the superseded standard Note 1". The first version of the revised list I have stored on my PC is dated 1999 (but this may not be the first such list). Nevertheless, you can see that there would be confusion if a standard were to give one date and the OJEC were to give another date. Eliminating the 'certification clause' leaves the OJEC as the only date for the expiree of a standard, with the Commission being in overall control of when that date is (although in practice this would normally be agreed with the CENELEC BT). ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc 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://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
