John, I did read what you wrote, which was "There are always differences".
If you look at what I wrote, you will see that I gave an example of a standard where the CENELEC version of the IEC standard has no Common Modifications, no Special National Conditions and no 'A' Deviations. So where are the differences that always exist? How can such differences "be specific to one manufacturer"? Remember that the original question referred to a manufacturer who had lots of IEC standards but did not have the corresponding ENs. Personally, I would not make a statement that "There are always differences" between and IEC and CENELEC standard because it is absolute - "There are often differences" I could except. Of course, if by 'difference' you mean that in CENELEC a previous version of a standard is not superseded straight away whereas in IEC it is then I do agree - and I covered this point in my reply. Hence, CENELEC standards have a Date of Withdrawal of conflicting standards (commonly, previous versions of the same standard). From a regulatory point of view, the Date of Cessation of the presumption of compliance with the Safety Objectives of the LVD for a superseded standard (set by the Commission) is usually set to be the same as the Date of Withdrawal (set by CENELEC). Given an identical product, I cannot see how a standard would be applied differently to manufacture 'A' or manufacturer 'B'. Regards, Richard Hughes In a message dated 15/11/2003 09:23:08 GMT Standard Time, [email protected] writes: I read in !emc-pstc that [email protected] wrote (in <1e4.13640b3e.2ce6 [email protected]>) about 'IEC and EN standard relationships' on Fri, 14 Nov 2003: > There are not always technical deviations between IEC and EN > standards, for instances there are no differences in the body of > the standard between the latest versions of IEC 60825-1 and EN > 60825-1. Of course, CENELEC standards have a Date of Withdrawal of > conflicting standards > which IEC standards do not. > > In a message dated 14/11/2003 22:36:42 GMT Standard Time, > [email protected] writes: > >> There are always differences: the question is whether they >> matter or >> not, and the answer to that can even be specific to one >> manufacturer. If you look at what I wrote, I did not say 'technical differences'. The non-technical differences may be important in some circumstances. -- Regards, John Woodgate,
