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Author Service Entrance Conductors
Kissi Asiedu

2006-03-18, 3:21 pm

I have paid an electrician to wire my house in Ghana, Africa. The system
there is 220-240Volts to ground at 50 Hz. He is telling me he will use THHN
16mm2 (#6 AWG) for the service entrance conductors. Its a 3 phase system at
200amp load center (main breaker). Is the wire size right for this system? I
read NEC 2002 and it requires at least 2/0 copper for 200amp service. Any
suggestions please?



gfretwell@aol.com

2006-03-18, 4:21 pm

On Sat, 18 Mar 2006 13:44:21 -0500, "Kissi Asiedu" <kissi5559@aol.com>
wrote:

> Its a 3 phase system at
>200amp load center (main breaker). Is the wire size right for this system? I
>read NEC 2002 and it requires at least 2/0 copper for 200amp service. Any
>suggestions please?


You are correct. Even that includes the "diversity" that one expects
in a residence. For a non-dwelling installation you would need 3/0
SQLit

2006-03-18, 9:21 pm


<gfretwell@aol.com> wrote in message
news:7kpo125ate6qf94dhlio7599moj96vprf7@4ax.com...
> On Sat, 18 Mar 2006 13:44:21 -0500, "Kissi Asiedu" <kissi5559@aol.com>
> wrote:
>
system? I[color=darkred]
>
> You are correct. Even that includes the "diversity" that one expects
> in a residence. For a non-dwelling installation you would need 3/0



I have no clue if Ghana is as hot as Phoenix. We are required to install
4/0 copper for service entrance cables or 250 mcm AL. Check the temp derate
chart below the table.

Ghana may not have a electric code nor any enforcement. Check other homes
in the area and see what they installed. Sure is a lot of power for a
residence.


Stephen Dawson

2006-03-21, 2:21 pm


"SQLit" <sqlit@qwest.net> wrote in message
news:U92Tf.34$uY2.678@news.uswest.net...
>
> <gfretwell@aol.com> wrote in message
> news:7kpo125ate6qf94dhlio7599moj96vprf7@4ax.com...
> system? I
>
>
> I have no clue if Ghana is as hot as Phoenix. We are required to install
> 4/0 copper for service entrance cables or 250 mcm AL. Check the temp
> derate
> chart below the table.
>
> Ghana may not have a electric code nor any enforcement. Check other homes
> in the area and see what they installed. Sure is a lot of power for a
> residence.
>
>


In th UK, a 230V system, I would use a 95sqmm conductor for the phases.


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