Don't forget that 61000-3-2 has been amended with A14, which gives you the option of avoiding the special wave shape criteria and classifying most items (excepting PCs and televisions) as Class A. Paul O'Shaughnessy Affymetrix, Inc.
-----Original Message----- From: Steve Austin [mailto:[email protected]] Sent: Tuesday, February 20, 2001 5:34 AM To: [email protected] Subject: PFC Jon, There is no specific requirement for power factor correction as far as I know. The Harmonics Emissions Standard BS EN 61000-3-2 1995 became mandatory 01/01/2001, this sets limits for the harmonic disturbance permitted on the mains - so it adds up to the same thing. . It applies to all equipment having a mains input power consumption over 75 watts. Your type of equipment must meet limits defined as being Class A or Class D. Units fall within Class A unless they have a wave shape lying within a "special wave shape", in which case they are Class D. Class D limits are more onerous. Computers, monitors and televisions must meet Class D limits, irrespective of wave shape.. You need a copy of the standard for the limit tables and the "special wave shape". Regards Steve Austin < [email protected] <mailto:[email protected]> > ----- Original Message ----- From: Jon Keeble < [email protected] <mailto:[email protected]> > To: < [email protected] <mailto:[email protected]> > Sent: Monday, February 19, 2001 11:24 PM Subject: PFC on 150w mains to DC switcher > > I have selecting a 150w universal input (110-240 VAC nom) four rail switcher > for > use in a product (digital audio workstation) to be shipped to USA, Japan, > Europe etc. > > The supply has a CE mark. I notice, however, that there is no PFC stage, > and no mention of PFC in the supply data sheet. > > I thought that PFC was required in Europe - could someone please confirm / > deny this? > > Thanks > > Jon Keeble > ----------------------------------- > Hardware Engineering Manager > FairlightESP Pty Ltd > Phone +61 2 8977 9931 > [email protected] <mailto:[email protected]> ------------------------------------------- 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]
