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Old 12-31-2008, 05:01 PM   #1
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Wire Gauge

Hey guys, gonna install my cb this weekend, it's a Uniden PRO510XL - anyway, I need to run power from the battery so I need to add wire to make it all there. I already have some wire but it looks too small, there is no labeling on the wire so I can't be sure of the exact gauge. I stripped both wires and the actual wire looks very close to what the cb already has, so it might just be that the insulation is different sizes. So my question is, does anyone know what gauge wire I should actually be using? and if I use the wire I already have that is very close, should I rely on the in-line fuse to burn first if there's a short? Thanks.

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Old 01-01-2009, 11:22 AM   #2
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Originally Posted by HMS Corsair View Post
Hey guys, gonna install my cb this weekend, it's a Uniden PRO510XL - anyway, I need to run power from the battery so I need to add wire to make it all there. I already have some wire but it looks too small, there is no labeling on the wire so I can't be sure of the exact gauge. I stripped both wires and the actual wire looks very close to what the cb already has, so it might just be that the insulation is different sizes. So my question is, does anyone know what gauge wire I should actually be using? and if I use the wire I already have that is very close, should I rely on the in-line fuse to burn first if there's a short? Thanks.
This should help on the wire size. I find it best to go with one size bigger on the wire size and fuse both pos & neg lines with in 6" of where the lines inter the radio.

The amount of energy a device uses in performing its function. To get watts, you multiply volts x amps. For example, a typical set of offroad auxiliary lights might draw about 4.6 amps. 12 volts x 4.6 amps = 55.2 watts. To get amperes, divide watts by volts. Examples: 55 watt auxiliary lights would calculate like this: 55 watts / 12 volts = 4.58 amps.

Amps and Wire Gauge - 12V Circuit
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