Ned, See EN61010-1:20001, 6.5.1.1.d... Movable conductive connections, for example, hinges, slides, etc., shall not be the sole PROTECTIVE BONDING path unless they are specifically designed for electrical inter-connection and meet the requirements of blah...blahhh There are similar provisions, I think in NFPA79 as well
WmF From: Ned Devine [mailto:[email protected]] Sent: Friday, November 14, 2003 10:29 AM To: IEEE EMC/Product Safety (IEEE, EMC/Product Safety) Subject: Grounding Hi, I need some help. I told someone that you can not depend on mechanical contact only (i.e. in this case a door hinge) for protective earth. Even if it passes the test, it would still not be acceptable because it does not meet the construction requirements. He then asked me to show him were it said that in the standard (IEC 60950-1 or IEC 60601-1). I looked and could not find it. Am I just missing it, or is it not in the standards? There is a reference in CSA standards to C22.2 No. 0.4 that has the requirement, but I can not find a similar reference in UL or IEC standards. Ned Devine Program Manager III Entela, Inc. 3033 Madison Ave. SE Grand Rapids, MI 49548 Phone: 616 248 9671 Fax: 616 574 9752 e-mail: [email protected] www.entela.com 1-800-888-3787 Web: www.entela.com Grand Rapids * Detroit * Boston * Toronto * Taipei This message is confidential and intended only for the individual to whom or entity to which it is addressed. If you are not the intended recipient or addressee, or an employee or agent responsible for delivering this message to the addressee, you are hereby notified that any dissemination, distribution, or copying, in whole or part, of this message is strictly prohibited. If you believe that you have been sent this message in error, please do not read it. Please immediately reply to sender that you have received this message in error. Then permanently delete all copies of the message. Thank you. 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: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc 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: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
