Hi George To start with the last remarks:
I don't think the EC will be considered with the availability of test equipment. Of course a transition period will be available: it will be 2 years. Chances of acceptance are not bad, since the requirements are much lighter for most equipment, and as most committees vote's are from major industries representatives, this is exactly what they wanted (possibly not enough). The target is to publish the CM in Jan 2001, thereby creating an escape for literally thousands of (most professional) equipments that cannot meet the Class D requirements without costly modifications. The problems will stay the same for PC and Monitors, and not-professional audio and VCR equipment and consumer faxes, because they will have to meet Class D. It will introduce the Switched mode power supply in audio equipment !!!!! These groups of equipment will have to meet the requirements too in the current EN 61000-3-2, as long as they meet the special wave shape for Class D.(essentially all equipment having a bridge rectifier and a smoothing capacitor). Wait and seee......... Regards, Gert Gremmen, (Ing) ce-test, qualified testing =============================================== Web presence http://www.cetest.nl CE-shop http://www.cetest.nl/ce_shop.htm /-/ Compliance testing is our core business /-/ =============================================== >>-----Original Message----- >>From: [email protected] [mailto:[email protected]]On Behalf >>Of George, David L >>Sent: Tuesday, March 07, 2000 8:24 PM >>To: Gert Gremmen; 'Emc-Pstc' (E-mail) >>Subject: RE: Trying to understand the EN 61000-3-2 >> >> >> >>Gert: >>You are predicting the future. The committee drafts are the way >>you say but >>they have not been approved. Approval or rejection is >>anticipated sometime >>in the fourth quarter 2000. This a estimated schedule. If it is approved >>there is always a grand fathering period. This is helpful since >>the special >>list has been changed and major products that meet the present 61000-3-2 >>will not meet the amendment because the products are now in a different >>category. An overlap is needed. Also where will laboratories >>get the test >>equipment if the amendment is changed two or three months before the >>effective date? >> >>Also the last three categories are not excluding the professional >>versions. >>They all will now have to meet the same limits as professional equipment. >>Isn't that nice? Stay tuned for more changes. >> >>Dave George >>Unisys >> >>-----Original Message----- >>From: Gert Gremmen [mailto:[email protected]] >>Sent: 18 February, 2000 9:38 AM >>To: Colgan, Chris; 'Emc-Pstc' (E-mail) >>Subject: RE: Trying to understand the EN 61000-3-2 >> >> >>It doesn't matter anymore. >>The special waveshape requirement has been removed. >>Class D will be defined to equipment on a specific list. >>This list is based on the charateristics of equipment >>type that due to their nature have great impact on the power >>supply network >>due to their harmonics current level. >>In essence all equipment having their supply bridge rectified >>and use a capacitor for smoothing are potential candidates. >> >>For now named equipent are: >> >>PC >>Printers >>elevison and viedocassette recorders >>Multimedia >>Fax machines >>Excluding professional versions of the last three categories. >> >>List subject to change in next revision. >> >>Date to be harmonized (if accepted) 1-1-2001. >> >>Regards, >> >>Gert Gremmen, (Ing) >> >>ce-test, qualified testing >> >>=============================================== >>Web presence http://www.cetest.nl >>CE-shop http://www.cetest.nl/ce_shop.htm >>/-/ Compliance testing is our core business /-/ >>=============================================== >> >> >> >>------------------------------------------- >>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] >> >>
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