Steve -- Fun questions! (I am a person with documented tendencies to not take the trouble to go to a breaker panel to find and disconnect the correct breaker, so I may be taking a different approach here...) Nameplate I regard the nameplate as information for the installing electrician on how to size the facility breaker and the wiring to the equipment (ceiling panel). So I agree with your approach, from what I understand from your description. Labels and LOTO I would explore, with your client, any incentives for the user to simply disconnect the power cord for a single subsystem from the ceiling panel to work on that subsystem, so that the entire system would not have to be taken down and restarted. If that seems reasonably foreseeable, you may need additional risk mitigations beyond what you propose. Good to see you at ISPCE, too!
Mike Sherman Sherman PSC LLC > On 05/15/2023 6:25 PM CDT Steve Brody <sgbr...@comcast.net> wrote: > > > Experts. > > First, it was good to see those who were at ISPCE in Dallas. > > Back to the question at hand, and a proposed solution. But I still request > ay comments/inputs. > > I have a client who makes products to their customer's requirements. The end > product includes several products, sub-systems, that work together in the end > product to perform the intended task. > > Each of the subsystems has its own power cord that plugs into an outlet in a > ceiling panel which has an outlet for each of the sub-systems. > > Power to the ceiling panel is derived from a single facility panel that has a > LOTO breaker. > > It is my thought that the following should be done: > * The system nameplate current rating should be inclusive of all sub-systems > and system power > * that there be a label adjacent to the nameplate indicating that there are > 'x' number of power cords, and that the disconnect for the systems the > facility panel number > Thoughts? > > Thanks in advance, > > Steve Brody > sgbr...@comcast.net mailto:sgbr...@comcast.net > C - 603 617 9116 > - > ---------------------------------------------------------------- > > 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 mailto:emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > 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: > Mike Cantwell <mcantw...@ieee.org mailto:mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher <j.bac...@ieee.org mailto:j.bac...@ieee.org> > David Heald <dhe...@gmail.com mailto:dhe...@gmail.com> > > > --------------------------------------------- > > To unsubscribe from the EMC-PSTC list, click the following link: > https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 > - ---------------------------------------------------------------- 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 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: Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
