I read in !emc-pstc that Sam Wismer <swis...@bellsouth.net> wrote (in <000901c19ab1$7feb4ae0$0201a8c0@sam>) about 'EN50091-2:1995', on Fri, 11 Jan 2002: > I am reviewing EN50091-2:1995 to determine the immunity requirements for > UPS > systems. According to the harmonized list, this is the correct version of > the standard under the EMCD. It calls for radiated emissions, IEC 801-2, > -3 > and -4. It then says 801-5 is under consideration. Our customer is > requesting 801-5, but based on how I read the standard, it is not required > at this time. Could that be true? > The standard is seriously out-of-date. 801-5 was never published (but an unfinished version was issued as ENV50142), and the requirements in 801-2 to -4 have been considerably changed in the current IEC/EN 61000-4 series.
Here is the (re-formatted) information from the CENELEC web site on the replacement: Project number 14872 Standard reference prEN62040-2 Reference document IEC 62040-2:200X Technical body CLC/TC 22X IEC/TC IEC/SC 22H Stage code Stage code date Stage code deadline Real next stage code 31 (2020) 2001-10-31 2002-06-30 32 (3020) Target enquiry Target approval Target ratification Target available 2003-06-30 2003-11-30 2004-03-31 Note 2001-10 decision: Work on future IEC 62040-2 to replace EN 50091-2:1995 * CDV expected December 2002 Title (EN) Uninterruptible power systems (UPS) -- Part 2: Electromagnetic compatibility (EMC) requirements Now, what should you do? IMO, you probably cannot just ignore the surge test, so I suggest you apply IEC61000-4-5, and explain in your technical file why you did that. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk After swimming across the Hellespont, I felt like a Hero. ------------------------------------------- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
