Wiring in some toys - Pontiac G6 Forum
 
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post #1 of 5 (permalink) Old 01-29-2010, 11:11 PM Thread Starter
 
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Wiring in some toys

Alrighty gents,

To make a long story short, we were wiring up some strobes and a scanner in a buddy's durango this evening (more like they were, I was holding the light) and when we got things rollin, the wires decided to light up the night.. Needless to say, the wires were toast and the day scrapped.

Now, to prevent this, because I plan on doing some custom wiring myself, what type(s) or size wire would work best with the 2007, Pontiac G6 Sedan.. See I plan to have my stuff work, not fill up the garage with smoke.

Thank you so much.
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post #2 of 5 (permalink) Old 01-30-2010, 04:44 AM
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depends on what you plan to run into dem dare wires.....

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post #3 of 5 (permalink) Old 01-30-2010, 11:19 AM
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The bigger the wires...

... the bigger the sparks and the larger the amount of smoke that will be released when you short something out.

It sounds like you and your buddy neglected to install a fuse at the point where you added in your wire(s). If so you're lucky that the wires burned up to protect the rest of the Durango. Using a larger wire in this case would have spelled disaster. I've had to rebuild the electrical harness on three friend's cars and it's no picnic. But I digress...

The wire size needs to be appropriate to what you are trying to power. The clue should be in the wire that is already attached to the "hungriest" device you are hooking up. As an example the scanner is going to have pretty small gauge power wire as it doesn't draw much current, but strobes might be a few Amps apiece so their wires will be larger.

Use this as a general guide: For power runs to a single device, use the same gauge of wires for runs up to 10 feet, and go up one wire gauge for every additional 10 feet or fraction thereof. For example, if you have a 22 foot run and the device has #18 wire, ideally you should be using #14 (the gauge changes by 2 per size step, and a smaller number is a larger wire). For each device of similar power added, increase the wire size one step.

Oh, and don't forget fuses. Again you always must use one at the spot where you are tapping in to the power, and you should also use one for each device. The fuse needs to be sized appropriately, so don't use a 60 Amp fuse to protect fours strobes and a scanner because you have no fuse in the circuit in that case. Find out how much current (how many Amps) each device needs, add them up, multiply that by 1.3, and go to the next size fuse. For example, four strobes at 3 Amps each + scanner at 1 Amp = 13 Amps X 1.3 = 17.9 Amps, so use a 20 Amp fuse.

~ MattInSoCal
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post #4 of 5 (permalink) Old 01-31-2010, 03:48 AM
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Quote:
Originally Posted by MattInSoCal View Post
... the bigger the sparks and the larger the amount of smoke that will be released when you short something out.

It sounds like you and your buddy neglected to install a fuse at the point where you added in your wire(s). If so you're lucky that the wires burned up to protect the rest of the Durango. Using a larger wire in this case would have spelled disaster. I've had to rebuild the electrical harness on three friend's cars and it's no picnic. But I digress...

The wire size needs to be appropriate to what you are trying to power. The clue should be in the wire that is already attached to the "hungriest" device you are hooking up. As an example the scanner is going to have pretty small gauge power wire as it doesn't draw much current, but strobes might be a few Amps apiece so their wires will be larger.

Use this as a general guide: For power runs to a single device, use the same gauge of wires for runs up to 10 feet, and go up one wire gauge for every additional 10 feet or fraction thereof. For example, if you have a 22 foot run and the device has #18 wire, ideally you should be using #14 (the gauge changes by 2 per size step, and a smaller number is a larger wire). For each device of similar power added, increase the wire size one step.

Oh, and don't forget fuses. Again you always must use one at the spot where you are tapping in to the power, and you should also use one for each device. The fuse needs to be sized appropriately, so don't use a 60 Amp fuse to protect fours strobes and a scanner because you have no fuse in the circuit in that case. Find out how much current (how many Amps) each device needs, add them up, multiply that by 1.3, and go to the next size fuse. For example, four strobes at 3 Amps each + scanner at 1 Amp = 13 Amps X 1.3 = 17.9 Amps, so use a 20 Amp fuse.

~ MattInSoCal
Nice post Matt.
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post #5 of 5 (permalink) Old 01-31-2010, 05:01 AM
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Read the directions too....I hope the strobes were for 12volts......
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