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Joined: May 2007
Posts: 47
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Another time you'd use white as a hot is a 240V circuit. Unless, of course, you want to run 12/3 (unneeded expense)and have an unused white at the load. You would/should have to land the white at the panel though, if you did that. I have seen 6/2 WG that has black and red wires (there is some in my house), but I have never seen it for sale myself. So, I don't know if it is even available anymore. Good point. Remember this thread is really about saras and her newbie question. Most common wiring methods are in the MC and NM families so most jobsite and "what is on the truck" methods will utilize these; and most MC and NM is 10/12/14 gauge. I would hope folks doing conduit runs wouldn't choose to use white for an ungrounded. Sara, do you understand 3 and 4 ways and how switch legs are done in the (2) basic uses they get?
Design-Build isn't supposed to mean design *as* you build.
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Joined: Oct 2006
Posts: 745
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I have seen 6/2 WG that has black and red wires (there is some in my house), but I have never seen it for sale myself. So, I don't know if it is even available anymore. Actually, I believe that this design is newer rather than older. Correct me if I am wrong, but I believe that black and red is required for two-wire "Loomex" (Romex) over #10 in Canada. If that's really the case, it would make sense that cable manufacturers would standardize with one cable design, especially with today's copper prices. Of course, type SE cable has always been black/red and is very common in the US for higher-amperage 240 volt circuits. Besides, who has ever seen a 50 amp 120 volt circuit? (No need for feedback from folks in New York City where there are 50 amp, 120 volt feeds to apartments in very old buildings. That's different)!
---Ed---
"But the guy at Home Depot said it would work."
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Joined: Mar 2001
Posts: 2,056
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Actually, around here, this is called a "switch loop". A "switch leg" is usually the wires that leave the switch and go to the load, when the feed is at the switch box
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Joined: Feb 2001
Posts: 54
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Green hots?? I can see someone cheating with a white or blue, and the occassional use where it's justified, but a green? Man, that just takes all!
Years ago, I worked as a facilities Electrician at OSU, We used to find "Hot Greens" all the time, Per "T" the sup, at one time Facilities didn't have a very big budget, and a previous sup had saved alot of money buying a large quantity of green wire at close out prices............
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Tom
Shinnston, WV USA
Posts: 1,044
Joined: January 2001
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