Gert, Thanks for your clarification. Paul, I also include your nice explanation below.
I speculate that the main point of A14 of EN61000-3-2 is to retain Class D requirement only for PC, PC monitor and TV, and replace Class D requirement with Class A for other equipment. Please verify my conjecture. Thanks. Barry Ma ------------------ On Thu, 19 October 2000, "CE-test - Gert Gremmen Ing. - CE-mark & more ..." wrote: You are right Barry, The decision was in favor and there are no other equipment yet defined in Class D. I have sent the list a press release from cenelec a few days ago about this subject. However, this was a compromise between industry fighting against and power companies on the other side. It was said by people witnessing the disc(p)utes that it was the toughest discussion since standardization started. With the next revision this compromise will certainly extend into the direction of other equipment within the power limits fall in Class D as long as it meets the criteria formulated as: "having a substantial influence on the power system". Read : all capacitor loaded bridge rectifier applications. Regards, Gert Gremmen, (Ing) ce-test, qualified testing =============================================== Web presencehttp://www.cetest.nl CE-shop http://www.cetest.nl/ce_shop.htm /-/ Compliance testing is our core business /-/ =============================================== > >>-----Original Message----- From: O'Shaughnessy, Paul [SMTP:[email protected]] Sent: Monday, October 09, 2000 10:28 AM To: 'Nick Rouse'; Friedemann Adt Cc: EMC Subject: RE: EN 61000-3-2/A14 Right - the dop is the first date upon which you MAY employ a new standard for compliance. The dow is the day by which any conflicting (ie the old standard) must be withdrawn and is therefore ineffective. This makes the period between dop and dow a transition period. Typically, the new standard is tougher than the original, so the transition period is used by everyone to ECO their products, retire the dinosaurs, etc. In this case (assuming all the dates are correct and it goes according to the plan), the situation is a bit upside down - A14 makes compliance to EN61000-3-2 easier. The dow for EN61000-3-2 will coincide with the dop of A14, which means on January 1st, you'll need to comply with EN61000-3-2, BUT you'll have the option to use A14 in doing so. For many manufacturers, A14 is the simpler and easier path, so I expect that many will take it once it is available. Paul O'Shaughnessy _______________________________________________________________________ Free Unlimited Internet Access! Try it now! http://www.zdnet.com/downloads/altavista/index.html _______________________________________________________________________ ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
