As John noted, some are a “bit different”. For example, you will occasionally find Scott transformers<https://en.wikipedia.org/wiki/Scott-T_transformer> in Japan. Then there is Brazil where you could find practically anything. Single-phase could be 110 V, 120 V, 127 V, 220 V or 230 V. It can vary within different locations in a city.
Ted Eckert Microsoft Corporation The opinions experessed are my own and do not necessarily reflect those of my employer. From: John E Allen <000009cc677f395b-dmarc-requ...@listserv.ieee.org> Sent: Wednesday, October 28, 2020 3:00 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [EXTERNAL] Re: [PSES] Electric Current Abroad 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 <00000220f70c299a-dmarc-requ...@listserv.ieee.org<mailto:00000220f70c299a-dmarc-requ...@listserv.ieee.org>> Sent: 28 October 2020 21:19 To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> 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/<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.worldstandards.eu%2Felectricity%2Fthree-phase-electric-power%2F&data=04%7C01%7Cted.eckert%40microsoft.com%7C95e92ee86677454ea8df08d87b8d1659%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637395194073397525%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=EyfZMKjgvCYvimgM%2Bp79za%2BffqgUkGZwwCAvO8AvQ1Q%3D&reserved=0> On Wed, Oct 28, 2020 at 1:48 PM Douglas Powell <doug...@gmail.com<mailto:doug...@gmail.com>> 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<https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ita.doc.gov%2Fmedia%2FPublications%2Fpdf%2Fcurrent2002FINAL.pdf&data=04%7C01%7Cted.eckert%40microsoft.com%7C95e92ee86677454ea8df08d87b8d1659%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637395194073407494%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=%2BPgczaXTNxb9l9muvirDA1W0SiZfo5fwXkUlBUnEpiE%3D&reserved=0>". A 2002 reprint of the 1998 document, and now a broken link. After a generic search of www.ita.doc.gov<https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ita.doc.gov%2F&data=04%7C01%7Cted.eckert%40microsoft.com%7C95e92ee86677454ea8df08d87b8d1659%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637395194073407494%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=kgNk62JOps4%2BJdjaH7j7L%2FVmmtV9IjuO2aHo%2BOllS3U%3D&reserved=0>, 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://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3D0hAdYfH_feQC%26newbks%3D1%26newbks_redir%3D1%26dq%3DElectric%2520Current%2520Abroad%26pg%3DPA1%23v%3Donepage%26q%3DElectric%2520Current%2520Abroad%26f%3Dfalse&data=04%7C01%7Cted.eckert%40microsoft.com%7C95e92ee86677454ea8df08d87b8d1659%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637395194073417489%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=VGUN80nYeZqaItXYEFY7N3507RDfaGufiGv%2FFPmVR8A%3D&reserved=0> Wayback Machine: Link<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fweb.archive.org%2Fweb%2F20130423040219%2Fhttp%3A%2Fwww.ita.doc.gov%2Fmedia%2FPublications%2Fpdf%2Fcurrent2002FINAL.pdf&data=04%7C01%7Cted.eckert%40microsoft.com%7C95e92ee86677454ea8df08d87b8d1659%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637395194073417489%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=MoL%2FtzsE8x664AEdi5eLq2MMEi2sTyrNvFMQ5loAsQ0%3D&reserved=0> 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 doug...@gmail.com<mailto:doug...@gmail.com> http://www.linkedin.com/in/dougp01<https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.linkedin.com%2Fin%2Fdougp01&data=04%7C01%7Cted.eckert%40microsoft.com%7C95e92ee86677454ea8df08d87b8d1659%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637395194073427483%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=OGezq9ZNk%2B0DugwdZh5SdmbVp2wZwhvLxbuaStf8v48%3D&reserved=0> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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