My impression all along has been that the likelihood of a product being placed in great numbers into domestic establishments is what defines Class D. Commericial television sets and personal computers fit this definition very well, thus their specific mention in the standard. They certainly may be sold and installed into industrial locations, but a very large number are marketed and sold to domestic installations. A PC manufacturer may ship thousands and thousands of PCs to Europe, and large numbers of these will be connected directly to the "low voltage" AC power supply (your friendly wall socket). The Great Debate aside, the concern is the
I believe that if your product is being marketed exclusively to industry, even if it incorporates a PC, the overall product can be assigned to Class A. The PC, as sold to you by Dell or Gateway, would conform to Class D, because you're buying essentially the same thing as Mr. Homeoffice. Please note that all the above is true only with the incorporation of A14 into the harmonic emissions standard. I hope I've stated that clearly. If not, please jump in and correct me! Paul O'Shaughnessy Affymetrix, Inc. -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Friday, March 02, 2001 7:50 AM To: Paul Chan; [email protected] Subject: Fwd:61000-3-2 Class D forwarding for [email protected] ____________________Reply Separator____________________ Subject: 61000-3-2 Class D Author: "Paul Chan" <[email protected]> List-Post: [email protected] Date: 3/2/01 8:57 AM Dear Group, I have read from here about PC, TV are definitely Class D. Can anyone suggest the how this discision made? Best Regards Paul Chan HKSTC ------------------------------------------- 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: Michael Garretson: [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://www.rcic.com/ click on "Virtual Conference Hall," ------------------------------------------- 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: Michael Garretson: [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://www.rcic.com/ click on "Virtual Conference Hall,"
