Doug --
"knife-edge and finger stock" sounds more like the gasketing around the door to keep the radiation inside. I think you'll find similar gasketing on doors to EMC chambers. I've not heard of this term applied to interlock switches. Mike Sherman Graco Inc. > On February 5, 2019 at 10:35 AM Doug Nix <[email protected]> wrote: > > Colleagues, > > I had a question come my way yesterday that I need a little help with. > Here’s the question: > > > > > I have a customer that produces X-ray equipment. The FDA requires > that the door that gives access to the X-ray source must have an interlock > with a ‘knife-edge and finger stock’ type connection. Also the FDA mentions > that interlocks should be of conventional design. What is understood by > “conventional design”? > > > > > > My reading on this requirement is that any conventional electromechanical > interlocking device like this: > [Image result for keyed interlock switch images] > will meet the basic requirements as described by the FDA as “knife-edge > and fingerstock” connection, but I am concerned that this may not be at all > what is meant. > > As always, any guidance you can offer will be welcomed and appreciated! > > Best, > > Doug Nix > [email protected] mailto:[email protected] > +1 (519) 729-5704 > > > - > ---------------------------------------------------------------- > > 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] mailto:[email protected] > > > 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://www.ieee-pses.org/list.html (including how to > unsubscribe) http://www.ieee-pses.org/list.html > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <[email protected] mailto:[email protected] > > Mike Cantwell <[email protected] mailto:[email protected] > > > For policy questions, send mail to: > Jim Bacher <[email protected] mailto:[email protected] > > David Heald <[email protected] mailto:[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.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://www.ieee-pses.org/list.html (including how to unsubscribe) 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]>
