Hello Bob, I just got a mail to have the new EN 61000-3-2 ready for 1-1-2001. The current concept is again left alone (decided TC210 Brussels: 18-1-2000), and a new concept will integrate misc. propositions from several countries. This new document will be produced within 2 weeks ??!! Voting 1 month UAP procedure: acceptance 7 or 8/2000 Publication OJEC winter 2001. Transaction time probably 2 years.
Regards Gert Gremmen >-----Original Message----- >From: [email protected] [mailto:[email protected]] >Sent: Wednesday, January 19, 2000 11:32 AM >To: cetest >Subject: RE: Harmonics Testing > > > > >Can you provide an approximate date on "very soon"..........by >mid-year.........by end of year....etc.? Also is there somewhere (internet >or otherwise) where I can get a copy of the draft? > >Thanks. >Bob Heller > >========================================================= > > > > >"cetest" <[email protected]> on 01/18/2000 02:46:52 PM > >Please respond to "cetest" <[email protected]> > > >To: "Flinders, Randall" <[email protected]> > "'emc-pstc'" <[email protected]> >cc: (bcc: Robert E. Heller/US-Corporate/3M/US) >Subject: RE: Harmonics Testing > > > > > > >I suppose Randy you are concerned about the EN-61000-3-2 instead of the >EN 61000-3-3 which is concerned with Flicker testing. > >Please Note that the 3-2 is currently under revision and prone to change >very soon ! > >I would select Scenario #1 > >The 50 watt limit is meant to be used for all equipment, and the current >document TC210-169 (in voting right now) has it's clause modified >as such. > >Strictly read you are right about the application of scenario #2. > >The current 3-2 is a very bad document, f.a. nothing is said about >test times and transitory effects. This will all or partly be covered >in the new version. > >BTW Using scenario #2 it will be hard to exceed any limit at all with an >active input power < 50 watt !!! > >Gert Gremmen >ce-test qualified testing > > >============================== >http://www.cetest.nl >Do you know our >CE/E mark True type Font ? >http://www.cetest.nl/cettf.htm >============================== > >>-----Original Message----- >>From: [email protected] [mailto:[email protected]] >>Sent: Tuesday, January 18, 2000 7:12 PM >>To: 'emc-pstc' >>Subject: Harmonics Testing >> >> >>Greetings EMC Professionals! >> >>I have a quick question regarding Harmonics testing to >>EN61000-3-3. We have an ITE product with a switching power >>supply. The product uses about 38 watts input power. According >>to the standard, which scenario applies? >> >>Scenario #1 >> >>The unit does not need to be tested, because it falls below the >>Class D Input power range of 75(50)W to 600W. Section 7.4 of the >>standard states that "...No limits apply for equipment with an >>active input power up to and including 75W...." >> >>Scenario #2 >> >>Since the unit does not use more than 75W (or more than 50W for >>that matter), the unit then defaults to the Class A requirements >>and therefor must meet the less stringent Class A limits. Section >>5 of EN61000-3-3 states: " Class A: Balanced 3-phase equipment >>AND ALL OTHER EQUIPMENT, except that stated [in Classes B-D]..." >> >>So I guess my question is this: when an ITE product with a >>switching power supply uses less than 50W (75w), does it become an >>exempt Class D Device, or doe sit become a Class A device? >> >>Your insights would be appreciated..... >> >> >>Regards, >> >> >>Randy Flinders >>Chairman >>Orange County Chapter >>IEEE EMC Society >>[email protected] >>(714) 513-8012 >>(714) 513-8265 Fax >> >>Note: The opinions expressed herein are personal and in no way >>represent the position of the IEEE, The EMC Society, or my employer. >> > > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
