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#12
July 16th 19, 11:36 AM
posted to rec.aviation.soaring
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Fuse for radio
On 7/15/19 9:04 PM, Charlie M. (UH & 002 owner/pilot) wrote:
Fuses and breakers are really to protect the wire from overloads. A 12ga wire is good for a max load of about 20A. We won't get into free air load vs. in a bundle or conduit (it is rated at less). Sooo.....a 12ga wire can carry about 20A load. No, it can carry a whole lot more than that. Residential electrical codes limit it to 20 amps to minimize I*R drops, where the length of the wiring could reach into hundreds of feet. The wiring will actually handle over 200 amps before it starts to melt. 
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