Skip to main content
8 events
when toggle format what by license comment
Jun 16, 2020 at 10:07 history edited CommunityBot
Commonmark migration
Mar 19, 2020 at 14:25 comment added George Anderson @user37576124: Thanks for the correction. That was a dumb assumption on my part regarding 240 in Europe...I Americanized it! Oops! Thanks again.
Mar 19, 2020 at 0:43 comment added Harper - Reinstate Monica @user3757614 It came from Edison's DC system, which supplied neutral, +110V and -110V, to run motors @ 220VDC. Edison's slick trick to reduce voltage drop, but center grounding also helped safety. I wouldn't be too boastful about that, though, because that's basically Europe sitting back and taking notes while America bleeds the learning curve. Also you know England does +55/-55VAC (110V center-ground) on construction sites... again for safety.
Mar 19, 2020 at 0:19 comment added Harper - Reinstate Monica @GeorgeAnderson The third prong on a NEMA 10 is always, only, and forever neutral only. Yes, 240V-only dryers are fine. But those go on H-H-G NEMA 6 (Ms. Nope) not H-H-N NEMA 10 (Ms. Ghostface). The difference sounds stupid, but it's so important NEMA actually specced a whole separate series of receps to separate them.
Mar 18, 2020 at 23:38 comment added user3757614 Our buds across the pong operate at 240V, via a +240V hot and a neutral. Nobody has a +120/-120V setup, because that's not how electricity works.
Mar 18, 2020 at 23:33 comment added George Anderson WOW, Harp, you are rolling here. But I have a honest question....was the 3rd prong every really a neutral? What's wrong with 2 hots and a ground? I know modern dryers with electronics controlling everything may need a neutral, but they could presumably operate at 240 as well. I mean all our buds across the pond operate at 230-240 with ground and it's OK. Just think you are going overboard here a bit. But if you are as cooped up as I am, going stir crazy in Western Washington state, I forgive you in advance! Take care and stay healthy.
Mar 18, 2020 at 22:31 history edited Harper - Reinstate Monica CC BY-SA 4.0
added 9 characters in body
Mar 18, 2020 at 22:25 history answered Harper - Reinstate Monica CC BY-SA 4.0