ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
From an outsider- How does tipping work?
by gfretwell - 12/02/20 02:38 PM
Happy Thanksgiving
by Trumpy - 12/02/20 04:11 AM
Where is Everyone?
by Trumpy - 12/02/20 03:51 AM
What does your work place look like?
by Trumpy - 12/02/20 03:42 AM
Ground fault remover :-)
by dsk - 11/30/20 03:51 AM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 17 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
Service Entrance Conductors Poll #36220 04/01/04 10:27 PM
Joined: Mar 2004
Posts: 774
BigB Offline OP
I have always used copper for my service entrance conductors. Lately I have been thinking about using Al. I wanted to ask what other guys use and why they prefer one or the other.
Thanks, Brian (not a new member, just had to re-register)

[This message has been edited by BigB (edited 04-01-2004).]

Work Gear for Electricians and the Trades
Re: Service Entrance Conductors Poll #36221 04/02/04 12:16 AM
Joined: Jun 2003
Posts: 1,143
DougW Offline
Copper in, copper out (as far as we go).

Re: Service Entrance Conductors Poll #36222 04/02/04 09:27 AM
Joined: Aug 2003
Posts: 1,374
Ryan_J Offline
Depends on the size. If I were pulling anything bigger than 350Kcmil, I would use aluminum for ease of installation.

Ryan Jackson,
Salt Lake City
Re: Service Entrance Conductors Poll #36223 04/02/04 10:59 AM
Joined: Apr 2002
Posts: 7,218
HotLine1 Offline
Bottom line is "what is the spec". EE/PE specs cu, then it's Cu. If spec is al, then that's it.

Our design/build jobs are cu, unless the client has a tight budget.

The above is for large services, anything else is cu.

With the market prices for a lot of metals heading for the roof, cu & al are up also.
(Seen prices for metal studs lately) Conduit & steel poles are heading up also.

We have pulled long runs of 600Cu, 750al, & Ryan's theory of ease with al is on the money, but you do what you have to.

The few resi jobs that we do are pipe & cu for 200 amp service.


Re: Service Entrance Conductors Poll #36224 04/02/04 05:35 PM
Joined: Jan 2001
Posts: 1,044
Tom Offline
Whatever the customer is willing to pay for. Most single family dwelling services i do with aluminum and almost all commercial/industrial are installed with copper.

For my own service entrance, aluminum.

Few things are harder to put up with than the annoyance of a good example.
Re: Service Entrance Conductors Poll #36225 04/02/04 06:18 PM
Joined: Jan 2004
Posts: 171
Merlin Offline
I usually use aluminum if it is underground service entrance. Then I use URD cable. If it is overhead then I go with copper where I can. Copper is must easier if limitations allow.

Re: Service Entrance Conductors Poll #36226 04/02/04 06:30 PM
Joined: Feb 2002
Posts: 840
CTwireman Offline
Around here, 99% are aluminum.

Re: Service Entrance Conductors Poll #36227 04/03/04 12:45 AM
Joined: Sep 2003
Posts: 200
u2slow Offline
Will be using Aluminum for my 200A service. Copper only gets used around here if its spec'ed.

Re: Service Entrance Conductors Poll #36228 04/03/04 01:03 AM
Joined: Jun 2001
Posts: 642
nesparky Offline
We use copper unless AL is spec'd. Have had to repair too many places that had AL service, feeders, and even branch wiring.

Re: Service Entrance Conductors Poll #36229 04/03/04 07:36 AM
Joined: Dec 2001
Posts: 444
Sandro Offline
AL for all resi applications. CU for all commercial industrial apps.

How about Transformers? I always use aluminum wound XFMRs. in all applications.

Page 1 of 2 1 2


2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman


Member Spotlight
Nicholson Ga
Posts: 34
Joined: June 2006
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 20
Popular Topics(Views)
272,205 Are you busy
206,090 Re: Forum
194,093 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3