In message <e1ba0362b28ed211a1e80008c71ea30603388...@z-160-100-30-252.est.ibm.com>, dated Tue, 29 Aug 2006, "Gordon,Ian" <[email protected]> writes >We are hoping to move from metal to coated ABS enclosures for various >products as these provide a significant cost saving. Thus I would >welcome any comments as to how to ensure that the coated ABS versions >are as resilient from an EMC point of view as the metal ones. In >general is it possible to achieve the same shielding effectiveness from >a coated ABS enclosure as from a metal one?
This may help: IEC 61587-3 (2006-06) English and French Mechanical structures for electronic equipment - Tests for IEC 60917 and IEC 60297 - Part 3: Electromagnetic shielding performance tests for cabinets, racks and subracks The realistic but unhelpful answer is that a coated enclosure can be better than a poor metal one (thin folded metal with open joints) and worse than a good metal one (thick diecast with an EMC-rated lid and fixings). -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk 2006 is YMMVI- Your mileage may vary immensely. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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 [email protected] 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 [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
