I am evaluating to 60745-1 a hand held motor operated tool to that has:
-a grounding plug; and -no accessible conductive parts. The grounding connection provides 3 functions th at I can determine: -dissipates static -EMC -allows an external overload device (e.g., building circuit breaker) to operate in the event of a loss of basic insulation between mains and ground within the tool. I think that the following is an appropriate scheme by which to approach this: 1. Classify the product as Class I. 2. Subject the product to the electric strength requirement of double insulation (i.e., 3750 V, mains to foil wrapped on the outside) 3. Per clause 5.10 of 60745-1, apply the other requirements of "class II construction" to the accessible parts of the enclosure. Any comments from this esteemed group regarding other approaches to take or other things to consider? thanks, Mike Sherman Graco Inc. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ 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 <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
