RE: 30 amps on 12 gauge

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Subject: RE: 30 amps on 12 gauge
From: "Chris Landry" <[email protected]>
Date: Tue, 6 Aug 2002 22:41:59 -0400
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Reply-to: "Chris Landry" <[email protected]>
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Per the wire specs at www.alphawire.com, AWG 12 wire with 7/20 stranding has
DC resistance of 1.5 ohms per 1000 ft.  That means that 2.4 ft has a
resistance of 0.0036 ohms.  The voltage drop with 30 amps (V=IR) would be
0.11 volts, which is only 0.9% of 12 V.  The wire will dissipate 1.35 watts
per foot (P=VI) - not enough to cook on, but it will heat the wire.

chris
84 GTV6

>
> Date: Tue, 6 Aug 2002 12:13:35 -0700
> From: "Mike Nakamura" <[email protected]>
> Subject: 30 amps on 12 gauge
>
> 30 amps at 12v are okay to 2.4 feet (with 2% voltage loss).
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