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Re: [Amps] Dedicated 220AC Wiring for Amps..

To: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>
Subject: Re: [Amps] Dedicated 220AC Wiring for Amps..
From: R.Measures <r@somis.org>
Date: Fri, 14 Oct 2005 07:11:53 -0700
List-post: <mailto:amps@contesting.com>
On Oct 14, 2005, at 6:44 AM, Carcia, Francis A HS wrote:

> #12 will get pretty warm at 29 amps.

In a conduit, yes.  In open air no.  For a C-filter supply, wire temp 
is not the issue.
>
> -----Original Message-----
> From: Gudguyham@aol.com [mailto:Gudguyham@aol.com]
> Sent: Friday, October 14, 2005 9:40 AM
> To: amps080605@w4zt.com; n5ito@davidv.net
> Cc: amps@contesting.com
> Subject: Re: [Amps] Dedicated 220AC Wiring for Amps..
>
> In a message dated 10/13/2005 7:44:04 PM Eastern Daylight Time,
> amps080605@w4zt.com writes:
>
> Dave,
>
> Below you said you were running 4 breakers, each 30 amps.  Then you 
> said
> two of those breakers would be wired with #12 wire.  If  your breaker 
> is
> going to be a 30 amp breaker, you must, for safety's sake  and to meet
> NEC, use at least #10 wire. You should NEVER use wire rated  less than
> the capacity of the breaker.  If you are using #12 wire,  the breaker
> should never be larger than 20 amps. The length of the run is  of no
> consideration when it comes to meeting the minimum requirement of  the
> code.
> This is NOT entirely true. If you are running motor circuits you may 
> up the
>
> rating of the circuit breaker well over the size wire that is being 
> used.
> However, for branch circuits the above is true, but as I have stated, 
> NOT
> always.
>
>
>
>
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>
>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org

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