You will need 12/3 (which is 3 #12 wires & a separate ground) to run a 220V
circuit.
Black and Red for the Hot wires. White for the Neutral and the bare (or Green)
for the Ground.
The Breaker will determine the gauge. If you install a 20 Amp breaker, you may
run 12 Gauge. A 30 Amp Breaker necessitates 10 Gauge wire. Regardless of which
gauge you run, you can then terminate in a 15 Amp or a 20 Amp outlet in the
shack.
Clint - W5CPT
----- Original Message -----
From: Mike McCarthy, W1NR
To: Jim Brown
Cc: amps@contesting.com
Sent: Tuesday, April 24, 2007 2:23 PM
Subject: Re: [Amps] 230v wiring question
Jim Brown wrote:
> On Tue, 24 Apr 2007 12:24:45 -0500, Ken Bessler wrote:
>
>> Is 12/2 enough or will I see voltage drops
>
> #12 is just fine. It's rated for 20A, and there will be relatively
> little IR drop in such a short length.
>
> You MUST, however, pull a dedicated safety ground (green wire) with
> that line, and connect it to the third (round) pin on the outlet and
> to the ground bus in the breaker panel.
>
> 73,
>
> Jim Brown K9YC
>
>
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>
>
If it's 12/2 with ground (and most Romex type cable is) a seperate
ground is not required. The one in the jacket will suffice.
Mike, W1NR
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