I read in !emc-pstc that emcp...@aol.com wrote (in <144.9826c5b.2b70a07e @aol.com>) about 'Harmonic & flicker questions' on Mon, 3 Feb 2003:
> I have some questions about the harmonic/flicker standards. I would > appreciate any input you have. > > 1. What are the differences between EN 61000-3-2:1995 plus A1:1998, > A2:1998, & A14:2000 and the new standard EN 61000-3-2:2000? It's simply not possible to answer questions like this on a mailing list, especially for A14, which is a LARGE amendment. You really have to buy the latest standard. > > 2. What are the differences between EN 61000-3-3:1995 and the new standard > EN 61000-3-3: 1995 plus A1:2001? It's the same here. A1 is a large amendment and, short of reproducing the whole text here, it's not possible to tell you the differences. > > 3. What is the difference between EN 61000-3-3:1995 and EN > 61000-3-11:2000? I read in the standard that if equipment is not meeting > the EN 61000-3-3 standard, then this standard applies. Does this mean I > don't need to perform EN 61000-3-11 if I'm passing EN 61000-3-3? Yes. Section 11 is mainly for equipment rated above 16 A/phase, but CAN be used for equipment rated below 16 A that doesn't meet section 3. > > 4. Also, I currently use an HP/Agilent 6842A Harmonic & Flicker Test System > to perform the tests to the old standards. I called Agilent, and they said > they have discontinued this unit and will not support any software upgrades > after the A14 amendment. Does anyone know if there is someone that can > write some software that will work with the 6842A system? You also need to take into account that IEC 61000-4-15, the flickermeter standard, has also been revised. > > 5. If I have to get a new Harmonic & Flicker Test System, which one do you > recommend? I would want a system that will perform all of the standards: EN > 61000-3-2, EN 61000-3-3, & EN 61000-3-11. I hope there is a system I can > buy that will be supported 3-4 years from now. > You won't get one instrument that does it all. For 61000-3-11 testing, you might need a 75 A 3-phase supply. Think of separate boxes, flickermeter and harmonic test set. Note that the latter should conform to the recently revised IEC 61000-4-7. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
