Conformity Magazine - March 2008 - (Page 47)

CE marking to the Low Voltage Directive. In all cases, the standards review a product’s electrical and mechanical safety. The primary item for safety compliance in the critical path is to have a construction review performed on your device. This should be done by a qualified safety engineer familiar with the standards and requirements. This review should center on the materials used to build the device and the critical safety components. Summary Choosing the right gasket requires knowledge of both electrical and mechanical requirements. Shear forces, environmental effects, compression set, method of application and pricing are just some of the factors influencing choice of gasket which is best for a particular application. Materials must be both cost-effective as well as compliant with environmental regulations (RoHs, WEEE, etc.), and capable of being safely disposed of or recycled at end of life. For appliance design engineers who do not deal with EMI shielding on a day-to-day basis, the learning curve can be very steep unless they seek guidance and application support from reputable shielding material manufacturers and EMC/safety testing service providers. David Inman is Test Services business unit manager of Chomerics in Woburn, Massachusetts and can be reached at dinman@parker.com. Billy Sheedy is Elastomers business unit manager in Europe, and can be reached at bsheedy@ parker.com. References 1. 2. 3. 4. Prismark, Electronics Industry Report, 2007, pp 14-15, 81. Sheedy, B, Bouchard, P, “EMI Shielding Choices for Appliance Design,” Appliance Design, January 2008. Flanders, W, “More Choices To Meet a Steady Need,” Conformity, July 2006 Silver Cloud Manufacturing, “Filter Windows and Lenses EMI Shielding Design Guide,” rev 2005 FAST Link www.conformity.com/1560 marCh 2008 Conformity 7 http://www.conformity.com/1560 http://www.magnetic-shield.com http://www.magnetic-shield.com

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Conformity Magazine - March 2008 NewsBreaks Editor's Note Adelstein Renominated to the FCC Industry Canada Publishes FAQs On RF Fields FDA Gives Its Scientific Capabilities Poor Marks FDA Offers Guidance On its Product Review Process FDA Publishes Updates to List of Recognized Standards FDA Warns of Patient Risk From Electric Dental Handpieces Complying with the EMC Directive, Second Edition ESD Open Forum Emerging Issues in Standards - Korean "RoHS": Not Like RoHS at All The iNARTE Informer Challenges in Testing - Field-Induced Charged Device Model: What Really Happens Design Fundamentals - EMI Shielding Technologies for Consumer Electronics Equipment Focus On...Compliance Software Buyer's Guide Additional Standards Published for the EU's ATEX Directive Additional Standards for the EU's Medical Devices Directive Also Published China to Require Bar Codes to Enhance Product Safety CPSC Releases 2007 Self-Assessment CPSC Actions in News IEC Standards Update UL Standards Update Product Reviews Telcordia Standards Update From Our "You Can't Make This Stuff Up" Department Looking Back: Items from Past Issues of Conformity Advertisers

Conformity Magazine - March 2008

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