I read in !emc-pstc that Chris Chileshe <[email protected]> wrote (in <[email protected]>) about 'CE marking 'e' mark products', on Mon, 3 Sep 2001: >Most of my designs have been engineered for the 'e' mark i.e. >vehicle automotive EMC. This means the front end is ISO 7637 >(transients) compliant. > >I now have a requirement to extend the operating environment to >any 12-30V DC power supply running off mains, in a bid to CE mark >the product. > >I believe I need to perform ESD and RF emissions and immunity, but >what about the Fast Transients and Surge tests? Is my product >exempt because it does not actually connect to the mains supply,
Almost certainly, but since we don't know which EMC standard applies to your product, one cannot be sure. > and >if so, is there a requirement I can place on the user's power supply >(apart from the usual tolerances) that in someway guarantees that any >EFTs and Surge voltages are dealt with satisfactorily i.e. not coupled >through? Simply that it conforms either to the product standard applicable to your product or to the standard for stand-alone power supplies. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Eat mink and be dreary! ------------------------------------------- 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: No longer online until our new server is brought online and the old messages are imported into the new server.
