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Allan In article <[email protected]>, Ron Pickard <[email protected]> writes > >Hi all, I need to have a couple of issues resolved. > >I would like to purchase IEC 950 Amd 4, but I'm a little confused. > >It has been reported to me from a couple sources that IEC 950 Amendment 4 >is the complete IEC 950 document. However, checking with ANSI and Global >for pricing, etc., both say that Amd 4 is indeed a standalone document >separate from IEC 950 and is priced accordingly. Global also said that >Amd 4 is larger than the IEC 950 document and was curious why IEC 950 and >Amd 4 were not integrated. Which is correct? Is Amd 4 the integrated >document, or not? IEC950 Amd4 is a large amendment but it is not the complete IEC950. I have the CENELEC version of EN 60950/A4: March 1997 [Safety of Information Technology equipment (IEC 950:1991/A4:1996, modified)] in my hand from BSI. It is only 15 pages long and is, an English text only, modification to "EN 60950/IEC950 including amendments 1, 2, 3 & 4" to convert it into the EN 60950. Another English text version of EN 60950 can be purchased from BSI as "BS EN 60950:1992 / BS 7002:1992 incorporating amendments No.1, 2 & 3" however the amendment 4 update to this document has not been issued yet. > >Also,.... >Global said that CENELC is still processing EN60950 Amd 4 (they checked >with CENELEC a day or two ago) and could not give a release/publish date. >However, in a 3/14/97 email, Art Micheal reported that someone named Gail >(supposedly from CENELEC) had said that "EN 60950:1992/A4:1997 was just >published by CENELEC today (March 14)". Which is correct? Has Amd 4 >actually been released/published by CENELEC, or not? And, if not, any >idea as to when? The CENELEC version of EN 60950/A4: March 1997 from BSI states on the front:- "This amendment A4 modifies the European Standard EN 60 950:1992; it was approved by CENELEC 1996-12-09." and in the Foreword:- "The text of the document 74/422/FDIS, future amendment 4 of IEC 950:1991, prepared by IEC TC 74, Safety & energy efficiency of IT equipment, was submitted to the IEC-CENELEC parallel vote." "In October 1996, a draft amendment was submitted to the formal vote in order to introduce a common modification in the text of amendment 4." "The text was approved by CENELEC as amendment A4 to EN 60950 on 1996-12-09." > >Could anyone out there shed some light on these issues and provide some >factual info please. Hope this helps Allan -- Allan G.Carr B.Sc.(Elec.Eng) AMIEE | AGC-Tel Consultants Ltd Telecommunications Consultant | Email :- [email protected] European Approvals Specialist | Tel / Fax :- +44(0)141-956-2506 62 Crawford Road, Milngavie, Scotland | Voice Mail :- +44(0)1252-30-3062 http://www.acarr.demon.co.uk
