Replying to all here because the first time I just did a list reply and was rejected by the list server.
Seems as if we need answers to more questions before making a recommendation, technical or personnel. Why are they interested in this? For any device meeting FCC/CISPR-type EMI requirements the individual load steady-state contribution can be bound by considering the conducted emission limit to be all common mode. And then there is some sort of rss summation, in the frequency and time domains. There may be some heavy loads switching below 150 kHz, but they should be in a minority. Current? Voltage? If voltage, at what point: outlet or breaker box or... ? Knowing what their concern is would go a long ways towards defining what the problem solution is, and who might be the best at solving it. Ken Javor Phone: (256) 650-5261 From: Ken Wyatt <[email protected]> Reply-To: Ken Wyatt <[email protected]> Date: Sat, 27 Jun 2020 15:01:31 -0600 To: <[email protected]> Subject: [PSES] Power line noise expert? Hi All, I had an inquiry from someone who would like some help with power line noise specifically in buildings. This is really outside my specialties, so was wondering who on the list I could recommend to them? Here¹s the original question: I have interest in better understanding of a building's power distribution network and more specifically with quantifying the EMI that is observed on the AC power safety ground. The frequency range is DC to 1MHz, low-frequency range. Who could help with this? Thanks, Ken _______________________ I'm here to help you succeed! Feel free to call or email with any questions related to EMC or EMI troubleshooting - at no obligation. I'm always happy to help! Kenneth Wyatt Wyatt Technical Services LLC 56 Aspen Dr. Woodland Park, CO 80863 Phone: (719) 310-5418 Web Site <http://www.emc-seminars.com> | Blog <https://design-4-emc.com> The EMC Blog (EDN) <https://www.edn.com/electronics-blogs/4376432/The-EMC-Blog> Subscribe to Newsletter <http://www.emc-seminars.com/Newsletter/Newsletter.html> Connect with me on LinkedIn <https://www.linkedin.com/in/kennethwyatt/> - ---------------------------------------------------------------- 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) <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]> 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.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]>
