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
>>> 
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