Way off topic, but maybe someone can help

[Neil Morrison]

Your local library should have an electrical code book for your
state.
In the back you should find tables which let you figure this out.

Basically, assuming one 'pair' is a ground, and the two cable sets
are run in one conduit, you have 4 current carrying conductors.

You need to figure out the type of cable, and the conduit they are
in, and check the max current per cable. Multiply by two to get the
max current for your app.
Don't forget to figure the voltage drop also.

Be aware that using ground rods instead of a grounding conductor is
often a code violation. That in turn leads to voiding your insurance
and acquiring considerable personal injury liability. It might be
worth trying to find an electrician locally to at least advise you.

BTW, If the generator is 220, how will you get 110 from it for your
loads?

Regards,

Neil

----- Original Message -----
From: "Patrick Tocornal" <Brookbank at AOL.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Wednesday, July 24, 2002 4:47 PM
Subject: Way of topic, but maybe someone can help


> I do not know if this is the proper forum for the following
question, if it
> is not, please try to direct me to the proper place.
>
>
I
> have recently acquired a military surplus 12KW 220 single phase
generator,
> and would like to use it as a back-up for my farm house.
>
> The question is this, I do have two 3 wire conductors gauge #12
already
> underground to the generator location, if I parallel the 2
conductors thus
> having 3 number 12 wires for each leg how many amps can I carry?
>
> The ground would be provided by appropriate ground rods at both
ends, the
> generator and the 220 volt 60 amp fuse panel, the distance is about
100
> feet..
>
> Of course an appropriate transfer switch will be provided.
>
> Would the pair of 3 number 12 wires handle the load?
>
> Thanks in advance,
>
> Pat Tocornal

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