Piotr Under EMC directive 2004/108/EC, "apparatus" means any finished appliance or combination thereof made commercially available as a single functional unit, intended for the end user and liable to generate electromagnetic disturbance, or the performance of which is liable to be affected by such disturbance.
As your classromm lab equipment does not seem to fit this definition, some provisions of the directive are therefore non-applicable. Marking is another issue. David From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Piotr Galka Sent: Friday, November 07, 2008 10:44 AM To: EMC-PSTC; John Woodgate Subject: Re: Deviation of Performance Criteria - other question. From: "John Woodgate" <j...@jmwa.demon.co.uk> >>I should be able to limit the emission just making square being not >>square and persuade the pupil that it is really square what they see >>;-) > > Instead of work-arounds, there should be an EMC standard (or a pair, > for emissions and immunity) for such educational products. I don't expect such standards will allow for higher emission then others. There is possibility that in next classroom there is TV working. Except described (method 1) I see other methods of emission limiting: 2) - not allowing the pupil to make connections as they wont, but making them permanent when test board is installed (limiting the board flexibility of use). 3) - using shielded cables (BNC seems to me too big, but for smaller shielded connectors I don't give long live at school environment). As in 2 and 3 signal wires are not accessible you must add something to allow for oscilloscope probe connection. At the moment method 1 seems to me the easiest so the best one. Now I believe there is nothing I just missed in these subjects. Thanks John. But still don't know how existing at market education systems manage with ESD problem. Regards Piotr Galka P.S. Live was easy and pleasant before 2004 ;-) - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
