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txlulu 07-13-2012 01:22 AM

Burying Power Line
 
Please help. I have no electrical knowledge. I have gotten a bid for an electrician to burying the line that drapes into my small backyard. The bid says he will use "4/0 aluminum wires. For a 200 amp service." Help. What is 4/0? Do I want aluminum wires? Do I want copper wires? If this is for a 200 amp service and someday I remodel making a need for additional breakers/service, then will I have to dig and add more wire? Many, many thanks to all that can educate me! LK, Houston.

CopperClad 07-13-2012 01:29 AM

So you have a 200Amp service now? or your upgrading to a 200Amp service. I'm not an electrician, but I'm pretty sure the wires coming into your panel from the street are almost always aluminum. The 4/0 just is the thickness of the wire, 4 gauge.

mpoulton 07-13-2012 02:11 AM

Aluminum is much cheaper, with no difference in functionality for this purpose. If you need to upgrade the service to more than 200A in the future, you would have to replace the cable. For more than a 200A service, parallel conductors are likely to be required, and possibly multiple conduits. If you think you'll need to upgrade in the future then it would be wise to install two 3" conduits now since most of the expense is trenching.

txlulu 07-13-2012 12:04 PM

Yes, my current service is 200 with no open breakers. Thank you for your post and advice.

txlulu 07-13-2012 12:06 PM

Thanks! This is great information. I appreciate your post.

TarheelTerp 07-13-2012 12:18 PM

Quote:

Originally Posted by txlulu (Post 964583)
I have gotten a bid for an electrician to burying the line that drapes into my small backyard. The bid says he will use "4/0 aluminum wires.

Aluminum is fine.

What does the power company say?
Around here Duke would do it.

http://www.youtube.com/watch?v=YpQ_nZhnFIo


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