Hello Amund, EN 60950-1 is the European adoption of IEC 60950-1 adopted by CENELEC. When IEC TC 108 issues amendments to IEC 60950-1, the amendments are numbered sequentially starting at 1. When CENELEC adopts these amendments as EN 60950-1 amendments, they get the same numbering. However, CENELEC occasionally amends standards based on European group differences that are not issued by IEC TC 108. When CENELEC issues amendments that are European only, the numbering starts at 11. These may come out of sequence with the IEC issued amendments.
The second set of amended documents for EN 60950-1 2nd edition was a European-only set of group differences. It was called "A11" to ensure that when IEC 60950-1 A2 was issued, the European version would have the same numbering of A2. CENELEC will often attempt to have their proposals adopted into the international standard. However, if IEC TC 108 does not adopt a CENELEC proposal, and CENELEC feels that the proposal is still required, CENELEC will adopt it as a European amendment. The audio limits for Personal Music Players are one example which are A12. However, the limits of A12 did make it into EN 62368-1 to become part of the international standard. All amendments to EN 60950-1 should be applied based on the dates in the Official Journal of the European Union if you are declaring the presumption of conformity based on the compliance with the standards. Ted Eckert Microsoft Corporation The opinions expressed are not necessarily those of my employer. -----Original Message----- From: Amund Westin [mailto:am...@westin-emission.no] Sent: Monday, August 15, 2016 1:51 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] SV: [PSES] Amendments of EN standard How is the amendment history for the CENELEC version of EN60950-1? First, publication of A1, then A11 and then A12. At last A2 ... But A11 is a 2009 version while A1 is one year later (2010). Does it mean that A11 was issued before A1? Today, all amendments listed in OJ (A1, A11, A12, A2) apply for CE marking. Correct? Cheers, Amund -----Opprinnelig melding----- Fra: Scott Xe [mailto:scott...@gmail.com] Sendt: 3. februar 2015 17:29 Til: EMC-PSTC@LISTSERV.IEEE.ORG Emne: Re: [PSES] Amendments of EN standard Hi Pat, Thanks for your clarification. One question about the amendment from IEC. EN 60950-1 2006 EN 60950-1 2006 A11 2009 EN 60950-1 2006 A1 2010 EN 60950-1 2006 A12 2011 EN 60950-1 2006 A2 2013 According to OJ, all A11, A1, A12 & A2 are the amendments to EN 60950-1. Normally, CENELEC issuing amendments based on IEC is a routine process. How can IEC amendments become CENELEC standard directly? Thanks and regards, Scott > On 2 Feb, 2015, at 11:49 pm, Pat Lawler <plawl...@gmail.com> wrote: > > Scott, > > I think the CENELEC standards start at 50xxx, and IEC standards start > at 60xxx & 55xxx. That means CENELEC amendments to: > EN 50xxx standards start at A1 > EN 60xxx & EN 55xxx standards start at A11. > > Pat > > On Mon, Feb 2, 2015 at 5:52 AM, Scott Xe <scott...@gmail.com> wrote: >> Thanks! Did you mean CENELEC's amendment from A11 for standard no, >> 6XXXX and A1 for standard no, 5XXXX? >> >> Regards, >> >> Scott >> >>> On 31 Jan, 2015, at 2:11 am, John Woodgate <j...@jmwa.demon.co.uk> wrote: >>> >>> In message <30kyfuxz57yuf...@jmwa.demon.co.uk>, dated Fri, 30 Jan >>> 2015, John Woodgate <j...@jmwa.demon.co.uk> writes: >>> >>>> >>>> Yes, unless CENELEC doesn't accept the amendment totally, which is >>>> very rare. In that case, CENELEC produces its own version of the amendment, with a number of 11 or greater. >>> >>> AMENDMENT A1: >>> >>> My explanation above refers to standards that CENELEC adopts from IEC/CISPR. For its own standards, it starts at A1. >>> >>> -- >>> OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk >>> When I turn my back on the sun, it's to look for a rainbow John >>> Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK >>> >>> - >>> ---------------------------------------------------------------- >>> This message is from the IEEE Product Safety Engineering Society >>> emc-pstc discussion list. To post a message to the list, send your >>> e-mail to <emc-p...@ieee.org> >>> >>> All emc-pstc postings are archived and searchable on the web at: >>> http://www.ieee-pses.org/emc-pstc.html >>> >>> Attachments are not permitted but the IEEE PSES Online Communities >>> site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. >>> >>> Website: http://www.ieee-pses.org/ >>> Instructions: http://www.ieee-pses.org/list.html (including how to >>> unsubscribe) List rules: http://www.ieee-pses.org/listrules.html >>> >>> For help, send mail to the list administrators: >>> Scott Douglas <sdoug...@ieee.org> >>> Mike Cantwell <mcantw...@ieee.org> >>> >>> For policy questions, send mail to: >>> Jim Bacher: <j.bac...@ieee.org> >>> David Heald: <dhe...@gmail.com> >> >> - >> ---------------------------------------------------------------- >> This message is from the IEEE Product Safety Engineering Society >> emc-pstc discussion list. To post a message to the list, send your >> e-mail to <emc-p...@ieee.org> >> >> All emc-pstc postings are archived and searchable on the web at: >> http://www.ieee-pses.org/emc-pstc.html >> >> Attachments are not permitted but the IEEE PSES Online Communities >> site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. >> >> Website: http://www.ieee-pses.org/ >> Instructions: http://www.ieee-pses.org/list.html (including how to >> unsubscribe) List rules: http://www.ieee-pses.org/listrules.html >> >> For help, send mail to the list administrators: >> Scott Douglas <sdoug...@ieee.org> >> Mike Cantwell <mcantw...@ieee.org> >> >> For policy questions, send mail to: >> Jim Bacher: <j.bac...@ieee.org> >> David Heald: <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
