Way of topic, but maybe someone can help

Edwin J Forwood e.j.forwood at JUNO.COM
Thu Jul 25 11:31:47 EDT 2002


Running pairs of wire in parallel does nor increase the capacity.  Check
the Uniform Electrical Code!!!!
And #12 wire is rated for 20 amps not 15.
Jerry, K0EJF

On Thu, 25 Jul 2002 09:37:47 -0400 CyberGeezer
<cybergeezer74 at HOTMAIL.COM> writes:
> ----- Original Message -----
> From: "Patrick Tocornal" <Brookbank at AOL.COM>
> To: <HEATH at LISTSERV.TEMPE.GOV>
> Sent: Wednesday, July 24, 2002 7:47 PM
> Subject: Way of topic, but maybe someone can help
>
>
> > 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?
>
> I'm confused about paralleling two conductors to get three
> in each leg.  I presume that's a typo for 2.
>
> #12 wire is rated to carry 15 amps.  So two in parallel
> should carry 30 amps.
>
> 12kw at 220 volts is about 54.5 amps (assuming the load is
> not reactive).  You should not draw the full capacity from
> that generator through that wiring, but you could safely
> draw 30 amps (6600 watts), which may be adequate for your
> needs.  (Maybe some voltage drop in the 100-foot run, but
> it shouldn't be too bad.)
>
> A related point:  the 3-wire conductors you speak of--  is
> that plus ground, or including ground?  Does the generator
> have a neutral output?  If it does, it expects to connect
> to three conductors (not counting ground)--  (220 volts
> from red to black, 110 volts from red to white or black to
> white).
>
> 73 de W2GERry
>
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