Hi Steve, how have you been? It sounds like the ratings label should have both an input rating, with the voltage and maximum allowable total load that the system will see (in either amperes or watts), and output ratings for each outlet.
If the outlets are some sort of dedicated connections, then you would only need the input rating. The LOTO breakers are just Listed molded-case circuit breakers that you can stick a lock on. Hope this helps. Don Gies Gutor Field Service Engineer Equipment & Transformers Energy Management Business Schneider Electric M +1 346 313 6216 E [email protected]<mailto:[email protected]> 17 Capitol Reef Road Howell, NJ 07731 United States Internal From: MIKE SHERMAN <[email protected]> Sent: Monday, May 15, 2023 18:07 To: [email protected] Subject: Re: [PSES] Power cords [External email: Use caution with links and attachments] ________________________________ 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 <[email protected]<mailto:[email protected]>> 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 [email protected]<mailto:[email protected]> 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 <[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 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 <[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]>> ________________________________ 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 <[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 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 <[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]>> ________________________________ 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 <[email protected]> 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 <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
