I read in !emc-pstc that Bill Flanigan <[email protected]> wrote (in <FB6565868403D511952800D0B78483C43C83FF@AMERITHERM_PDC>) about 'EN61326:1997 Planning' on Wed, 30 Oct 2002: >A few questions about compliance to EN 61326. Guidance requested from my >emc-pstc colleagues > >What happened in Amendment 2; I have the standard to +A1
You need to buy it. > >Immunity: > EN 61000-4-5 [Imm'y Surge] what kind of equipment is needed to >conduct this test? A surge generator, basically as described in the standard. > EN 61000-4-11[Imm'y Voltage dips] what kind of equipment is needed >to conduct this test? Strictly, an IEC 61000-4-15 flicker meter, but this is a very specialised piece of equipment. If your equipment only produces non- periodic voltage changes (at switch-on and mode-change, for example), you may be able to use a storage scope. If your equipment doesn't make a 60 W lamp flicker, you probably don't need to test. The lamp should be on a separate circuit fed from the same distribution board. Ideally, the supply to that board should be a household-type 100 A service capacity supply. > >Emissions: > We manufacture equipment classified under EN55011 as ClassA Group2; >we generate RF energy for industrial purposes, excluding communications. >Section 7.2 says 'For equipment using ISM frequencies, see CISPR11.' That's 7.2 of EN 61326-1, not EN 55011. I only have an early draft, but doesn't it say 'For equipment using ISM frequencies, the limits in CISPR 11 apply.'? If it doesn't, it probably should. > *Does this mean _use_ EN55011:91 for emissions limits as I have been >doing? No, you should be using the 1998 edition, with amendments! But not if you don't use ISM frequencies. > EN 61326-1 doesn't mention anything about Group2 limits. > *Is there now a distinction between ISM equipment and equipment >using ISM frequencies? Yes, or rather between ISM equipment in general and ISM equipment that uses ISM frequencies, at which emission limits are relaxed. >Not trying to split hairs here, but if it doesn't >actually use ISM frequencies my equipment is calssified as ISM equipment, >right? Right. But you can't use the limits at ISM frequencies for equipment using other frequencies. -- 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
