John, I've heard this ± 10% argument before (circa 1995) regarding legacy UK voltages. It created some interesting discussions with design engineers trying to operate products within a skewed voltage window. One product we developed had a multi-tap autotransformer, with selectable primary to 380/400/415/440/460/480. It made life much easier but was costly.
-Doug Douglas E Powell Laporte, Colorado USA [email protected] http://www.linkedin.com/in/dougp01 On Wed, Oct 28, 2020 at 4:01 PM John E Allen < [email protected]> wrote: > That worldstandards list is, in reality, inaccurate w.r.t. the 3-phase > voltages in the UK, and in countries where UK design practice prevails, > where the “real world” 3-phase (STAR/WYE config) was/is around 415V (even > though the UK now “conforms” to the long-ago EU agreed level of 380V > because 380V +10% is 418V - i.e. = 415V, or “near enough”). In reality > that means the 1-phase voltage is around 240-245V (recently measured 243V > upstairs in this house). > > > > Thus one should take that list with the proverbial “pinch of salt” as the > “real world” voltages in some countries may be a “bit different” to the > nominal ones. > > > > John E Allen > > West London, UK > > > > *From:* Scott Aldous <[email protected]> > *Sent:* 28 October 2020 21:19 > *To:* [email protected] > *Subject:* Re: [PSES] Electric Current Abroad > > > > Hi Doug, > > > > Have you seen the list from worldstandards? It doesn't cover the phase > configurations directly but does have a column for number of wires. > > > > https://www.worldstandards.eu/electricity/three-phase-electric-power/ > > > > On Wed, Oct 28, 2020 at 1:48 PM Douglas Powell <[email protected]> wrote: > > All, > > > > In the distant past I struggled to learn what were the expected electrical > voltage, frequency, and phase configurations (delta, wye, high-leg, etc) > for commercial/industrial facilities in various countries. I know about IEC > 60038 standard voltages, but standard voltages don't always represent real > life in specific locales. What I wanted was a good country-by-country > listing for three phase power. The source I most often used was " > http://www.ita.doc.gov/media/Publications/pdf/current2002FINAL.pdf";. A > 2002 reprint of the 1998 document, and now a broken link. After a generic > search of www.ita.doc.gov, It seems it is no longer available. > > > > Yes, I realize the information was getting old but finding no up to date > alternative, I searched elsewhere. And besides, It's not likely that such > things like this change rapidly. > > > > Google Books: Link > <https://books.google.com/books?id=0hAdYfH_feQC&newbks=1&newbks_redir=1&dq=Electric%20Current%20Abroad&pg=PA1#v=onepage&q=Electric%20Current%20Abroad&f=false> > > Wayback Machine: Link > <https://web.archive.org/web/20130423040219/http:/www.ita.doc.gov/media/Publications/pdf/current2002FINAL.pdf> > > > > > I seem to remember a place on the web with a database lookup. Does anyone > know of a comprehensive resource for three-phase power in this world? No > need to refer to orbital platforms, the moon, or other planets just yet. > > > > Thanks! Doug > > > > > > -- > > Douglas E Powell > > [email protected] > http://www.linkedin.com/in/dougp01 > > - > ---------------------------------------------------------------- > > 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]> > > > > > -- > > Scott Aldous | Regulatory Compliance Manager | [email protected] | > 650-253-1994 > > > > - > ---------------------------------------------------------------- > > 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) <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]> > -- Douglas E Powell [email protected] http://www.linkedin.com/in/dougp01 - ---------------------------------------------------------------- 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]>
