Sudhakar, Many UL Standards call out "an edge, projection, or corner of an enclosure, opening, frame, guard, knob, handle, or the like, shall be smooth, well rounded, and not sufficiently sharp to constitute a hazard.” Manufacturers had no way to determine what constitutes a smooth, well rounded and not sufficiently sharp edge. UL developed the UL 1439 standard many years ago as a means to determine acceptability of a sharp edge. I believe today UL1439 is referenced in many of the UL standards. Best Regards, Peter Merguerian Go Global Compliance 4454 Crabapple Ct Tracy, CA 95377 Tel: (925) 487-4640 E-Mail: [email protected]
--- On Thu, 2/11/10, sudhakar wasnik <[email protected]> wrote: From: sudhakar wasnik <[email protected]> Subject: UL 1439 standard genesis To: [email protected] Date: Thursday, February 11, 2010, 1:49 PM Hi Guys, Can some one in the group shade some light on origin of this UL 1439 sharp edge standard? Does this standard have any basic standard like ANSI or any other on which this standard has evolved or is this evolution was by itself? Thanks, Sudhakar Wasnik, - ---------------------------------------------------------------- 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 <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - 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 <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
