Do you use #3 CU?
- Thread starter donw
- Start date
- Status
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
donw said:
#3 is good for 100 amps. If your supplier does have it you would need to use #2. It is cost effective to have it available. It is certainly is not as common as #2 but it is stocked at our supplier.
- Location
- Logan, Utah
It is a common stock item in my area as well. I use #3 all the time.
Chris
Chris
weressl
Esteemed Member
donw said:
No #3 or 3/0. It must be superstition
. The old-wives tales was that it is not stocked, but that is the result, not the cause.crossman
Senior Member
- Location
- Southeast Texas
Commonly stocked and used.
Buck Parrish
Senior Member
- Location
- NC & IN
donw said:
Maybe the OP is talking about #3 romex cu. with grd.
I would use more of it, if it was common.
I've used 2/0 cu romex It's real heavy!
- Location
- Logan, Utah
Are you sure it was NM cable and not TC cable?
I don't think I have ever seen NM cable larger than #6.
Chris
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I have seen 2/0 copper romex. In fact I have a friend who has about 20 feet of it he is trying to get rid of. That was a special order item.raider1 said:
- Location
- Massachusetts
Dennis Alwon said:
You sure about that? See 334.104.
My guess is your friend has 2/0 CU SE or SER.
crossman
Senior Member
- Location
- Southeast Texas
Dennis Alwon said:
Err... the scrap yard will pro'ly take it
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
iwire said:
You may be right . I saw it this weekend and I thought it was black. I called my friend and he said it may be gray but it is so dirty and it's been so long he doesn't remember.
I do know , for sure, that 2/3 NM with ground exists because I have bought that many times. Regularly stocked here.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I bet they will-- probably cost about $7 or more / foot when he bought it.crossman said:Err... the scrap yard will pro'ly take it
crossman
Senior Member
- Location
- Southeast Texas
Dennis Alwon said:
I bet it was expensive. Don't despair. Someone told me that #1 scrap would be at $7/lb in less than a year.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
crossman said:
If I knew that for sure I think I would stockpile a warehouse of the stuff.
crossman
Senior Member
- Location
- Southeast Texas
Dennis Alwon said:
No kidding! I wish I had all the scrap I sold for 70 cents a pound back in the old days.
ItsHot
Senior Member
- Location
- A little piece of heaven!
all excited!
all excited!
all excited!
Yeah, I remember getting all excited when it went to 79 cents a pound! Maybe cause gas was 82 cents a gallon!:grin:crossman said:
- Location
- New Jersey
- Occupation
- Journeyman Electrician
We use #3 all of the time. Specifying #2 instead of #3 may lead to a need to up size the EGC
hardworkingstiff
Senior Member
- Location
- Wilmington, NC
crossman said:
Wow, I sure hope they are wrong. It's hard to believe our economy could handle that much of an increase.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
While looking over a fire-suppression system to price wiring it, I came across some #6/3 NM with no EGC.
I never heard of it. And it's modern, not old stuff. Even has a UL on it. I may see it again and snap a pic.
I never heard of it. And it's modern, not old stuff. Even has a UL on it. I may see it again and snap a pic.
- Status