Hi Bill:
On 7/13/2019 10:42 AM, Bill Owsley wrote:
They started out, and still in some rural areas, use earth as the "ground" for the return of the AC power being provided to users.
The descriptive term is "SWER," Single Wire Earth Return. https://en.wikipedia.org/wiki/Single-wire_earth_return https://www.esdnews.com.au/swer-still-going-strong/ A brief history and acknowledgement of the SWER inventor: https://www.engineeringnz.org/our-work/heritage/heritage-records/single-wire-earth-return-swer/ And, a more scholarly report: https://scholarsmine.mst.edu/cgi/viewcontent.cgi?article=6061&context=masters_theses Best regards, Rich - ---------------------------------------------------------------- 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]>
