<[email protected]>, Dan Kwok <[email protected]> inimitably wrote: >So far, harmonised EMC standards seem to be "product centric". But, when >multiple products (boxes) are configured into a system, EMC issues can >still arise. In some cases, EMC problems can result not from the design >of any one individual box, but the the overall interconnection of >multiple boxes together. A good example of that is the ground loop.
You are correct, and in Europe this is because the EMC Directive is product-centric, to its, and industry's, disadvantage. An attempt has been made to address this in the revised Directive, but it is a weak attempt. Nevertheless, control of EMC at product level is, in many cases, the only practicable method. The EMC aspects of interconnections are under study, however, not entirely neglected. The Audio Engineering Society has a standards working group, SC-05-05, working on the subject. -- Regards, John Woodgate, OOO - Own Opinions Only. Phone +44 (0)1268 747839 Fax +44 (0)1268 777124. http://www.jmwa.demon.co.uk Why not call a vertically- applied manulo-pedally-operated quasi-planar chernozem-penetrating and excavating implement a SPADE? ------------------------------------------- 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,"
