I want to install an electrical outlet (the standard 120V duplex type) in a box where both phases (sic) are available. I have noticed that duplex receptacles normally have both sockets connected tog
I think you need to control the circuit with a 220 breaker so that both phases will be turned off at the same time. Rich White St. Joseph, IL USA '63 TR3B TCF587L That ain't a scrap pile, that is my
Another one of these, eh? -- David Scheidt dmscheidt@gmail.com _______________________________________________ Shop-talk@autox.team.net Donate: http://www.team.net/donate.html Suggested annual donati
You need to use a tied handle breaker, so that the condition where one of the outlets in the box is off and the other is still hot cannot occur. there is a specific provision in the NEC to allow the
Do not use a common neutral. Each outlet needs is own common return. If you use a 20A duplex break and 12 gauge 3 wire (4th wire bare ground) romex (rated 20A IIRC) and install 20A outlets, the two h
This could be true, only if you have loads with extremely high harmonic content. Without harmonics, the two phases cancel each other and, if both hot leads are carrying 20A, there is no current in t
I don't think that is correct. My house has two outlet circuits wired with a single run of 14-3 Romex and a 220 breaker. Some outlets use one side of the 220, some use the other. But they all use th
12/3 is generally legal for a mulitwire set up like this; the two hots are on different sides of ground (240 between them; 120 to ground), so there's no (real; there's theoretical ways to do it that
It's still common where there are long runs, or limited space in raceways or conduit. -- David Scheidt dmscheidt@gmail.com _______________________________________________ Shop-talk@autox.team.net Don
I had a conversion on 220 and phase difference with a licensed electrician some while ago and the topic of shared neutral came up. He denounced the practice sharing a neutral. I understand the phase
I'm not a big fan of it myself. It makes the wiring harder to figure out. You can't use a standard GFI type breaker. Independent control of the circuits would be nicer than the single 220 breaker. Bu
My electrician friend worked mostly in industrial/commercial so this may be why he denounced it. Only thing I can think of is a phase shift, but I'm just guessing. ___________________________________
BTW. Since he denounced it, it must be common? _______________________________________________ Shop-talk@autox.team.net Donate: http://www.team.net/donate.html Suggested annual donation $12.96 Archiv
Where you get into trouble is with loads that are highly non-linear, like simple capacitive-input power supplies. These draw current from the line only when the instantaneous line voltage is higher
I'm betting on this being the real problem the electrician has with it. I've dealt with lots of tradespeople, and most of them don't like doing things in a way other than what they always do. Doesn't