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#36220 - 04/01/04 07:27 PM Service Entrance Conductors Poll
BigB Offline

Registered: 03/31/04
Posts: 725
Loc: Tucson, AZ USA
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).]

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#36221 - 04/01/04 09:16 PM Re: Service Entrance Conductors Poll
DougW Offline

Registered: 06/08/03
Posts: 1083
Loc: North Chicago, IL
Copper in, copper out (as far as we go).

#36222 - 04/02/04 06:27 AM Re: Service Entrance Conductors Poll
Ryan_J Offline

Registered: 08/19/03
Posts: 1355
Loc: West Jordan, Utah, USA
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

#36223 - 04/02/04 07:59 AM Re: Service Entrance Conductors Poll
HotLine1 Online   content


Registered: 04/03/02
Posts: 6792
Loc: Brick, NJ USA
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.


#36224 - 04/02/04 02:35 PM Re: Service Entrance Conductors Poll
Tom Offline

Registered: 01/01/01
Posts: 1069
Loc: Shinnston, WV USA
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.

#36225 - 04/02/04 03:18 PM Re: Service Entrance Conductors Poll
Merlin Offline

Registered: 01/27/04
Posts: 170
Loc: NW Indiana
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.

#36226 - 04/02/04 03:30 PM Re: Service Entrance Conductors Poll
CTwireman Offline

Registered: 02/07/02
Posts: 839
Loc: Connecticut, USA
Around here, 99% are aluminum.

#36227 - 04/02/04 09:45 PM Re: Service Entrance Conductors Poll
u2slow Offline

Registered: 09/18/03
Posts: 198
Loc: Salt Spring, BC, Canada
Will be using Aluminum for my 200A service. Copper only gets used around here if its spec'ed.

#36228 - 04/02/04 10:03 PM Re: Service Entrance Conductors Poll
nesparky Offline

Registered: 06/21/01
Posts: 650
Loc: omaha,ne
We use copper unless AL is spec'd. Have had to repair too many places that had AL service, feeders, and even branch wiring.

#36229 - 04/03/04 04:36 AM Re: Service Entrance Conductors Poll
Sandro Offline

Registered: 12/30/01
Posts: 449
Loc: Stoney Creek, ON, Canada
AL for all resi applications. CU for all commercial industrial apps.

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

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