ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
New fan motor for Panasonic
by crselectric. 06/24/19 04:17 PM
Burning out of return(white) side of 120volt rec
by crselectric. 06/14/19 02:15 AM
Video door bell causing chime activation of coil
by JoeTestingEngr. 06/13/19 12:43 PM
Troubleshooting Voltage Drop Across Relay
by gfretwell. 06/09/19 11:49 AM
Apple Recalls Three-Prong Wall Plug Adapters
by Admin. 06/05/19 09:06 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
2 registered members (Scott35, sabrown), 6 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Type USE cable #89803
10/19/04 05:11 PM
10/19/04 05:11 PM
S
sparkync  Offline OP
Member
Joined: Oct 2002
Posts: 830
NC
When trying to find pipe size for USE cable, the charts don't show USE that I can see. I know that USE is underground cable, but my supply houses don't supply aluminum wire except in USE. Is there somewhere in the code that specifies what USE is equivalent to, in insulation? I am thinking about the options of using # 1 USE aluminum for a feeder to a 100 amp panel, instead of #3 copper. I'm figuring up a bid on a job. The run will be approximately 100ft. Thanks

2017 / 2014 NEC & Related Books and Study Guides
Re: Type USE cable #89804
10/19/04 10:46 PM
10/19/04 10:46 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,366
Estero,Fl,usa
Measure the USE at the widest dimension, then use that as the diameter of a circle for the single conductor that will fit in the pipe. (53% of internal sq/in)


Greg Fretwell
Re: Type USE cable #89805
10/19/04 10:54 PM
10/19/04 10:54 PM
C
caselec  Offline
Member
Joined: Apr 2002
Posts: 558
San Jose, CA
If the wire your supply house has is only marked type USE it can not be used for inside wiring. See 338-10(4)

I don't have much experience with USE cable since it is not stocked at most supply houses in my area but I believe it is frequently also listed as type RHH/RHW.

Remember it will cost more for the larger conduit to use AL wire so it probably will not save much if anything.

Curt


Curt Swartz
Re: Type USE cable #89806
10/20/04 07:09 AM
10/20/04 07:09 AM
S
sparkync  Offline OP
Member
Joined: Oct 2002
Posts: 830
NC
Thanks for the replies, I have decided to bid with copper wire. That was my first choice. I was just juggling figures to see the difference in price. Curt, you are right about the pipe size. I would have to increase the pipe size, and with all the other factors involved, copper is the way to go. Better job also. Thanks again for your input. Steve..

Re: Type USE cable #89807
10/20/04 11:18 AM
10/20/04 11:18 AM
E
electricman2  Offline
Member
Joined: Nov 2003
Posts: 269
Thomasville, NC USA
It might also be pointed out that type USE is not permitted as a interior wiring method.


John
Re: Type USE cable #89808
10/21/04 07:09 AM
10/21/04 07:09 AM
S
sparkync  Offline OP
Member
Joined: Oct 2002
Posts: 830
NC
Thanks for the info again.. "USE shall not be used in interior locations [Linked Image] That settles that question for me. Didn't think to look in the code for that one [Linked Image]
So many do's and don'ts in this trade. A lot to keep up with. Thanks again.. Steve


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
mersadrad
mersadrad
Montreal, Quebec, Canada
Posts: 28
Joined: March 2011
Show All Member Profiles 
Top Posters(30 Days)
Khombo 2
Popular Topics(Views)
255,845 Are you busy
191,824 Re: Forum
181,598 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.026s Queries: 14 (0.004s) Memory: 0.9766 MB (Peak: 1.1235 MB) Zlib enabled. Server Time: 2019-06-24 23:39:44 UTC