neo-ninja Posted February 15, 2011 Share Posted February 15, 2011 HI All, Just a quick question to the people in the know, i have some red power cable from a friend who had previously used it in a amp project on another car. I was hoping to use it on my carputer project but i have no idea what Gauge it is. I was wondering if someone can tell me how i know? Must be a simple solution, i would say its a little thinner then an HB pencil (it previously had a 30amp fuse in if that helps) Quote Link to comment Share on other sites More sharing options...
Doris Posted February 15, 2011 Share Posted February 15, 2011 try this http://www.reuk.co.uk/AWG-to-Square-mm- ... verter.htm just keep adding a figure into the awg box until you get to the diameter wire you have Quote Link to comment Share on other sites More sharing options...
neo-ninja Posted February 15, 2011 Author Share Posted February 15, 2011 Ah brilliant thanks can anyone sense check this for me: My diamieter area measuring using a ruler of the (copper wire only) is about 4mm which makes the wire about 6 guage and its around 15 feet long. (using link above) As the carpc uses a 160 watt power supply that surely means it pulls at most 160 watts which means that according to this link: http://www.my-car-computer.com/carputer-wiring.html with the info above i should be using 15amp fuse and my wire should be ok. Am i correct or wrong? Quote Link to comment Share on other sites More sharing options...
ChrisS Posted February 15, 2011 Share Posted February 15, 2011 Amps is Watts divided by Volts Quote Link to comment Share on other sites More sharing options...
neo-ninja Posted February 15, 2011 Author Share Posted February 15, 2011 Ah ok so 160/12 is 13.33 so should i go up or down? Up gives me a little leeway if there is a spike for some reason right? So 15amp should be good? Quote Link to comment Share on other sites More sharing options...
Dblock Posted February 16, 2011 Share Posted February 16, 2011 Sounds like 8 or 10awg Quote Link to comment Share on other sites More sharing options...
Dblock Posted February 16, 2011 Share Posted February 16, 2011 Sounds like 8 or 10awg but actually you said thinner than a pencil then it could be 12-16? Quote Link to comment Share on other sites More sharing options...
Husky Posted February 16, 2011 Share Posted February 16, 2011 calculate to 14.5 volts not 12 alternator runs at 14.5 Quote Link to comment Share on other sites More sharing options...
neo-ninja Posted February 16, 2011 Author Share Posted February 16, 2011 calculate to 14.5 volts not 12 alternator runs at 14.5 So you recon an 11amp fuse then? Quote Link to comment Share on other sites More sharing options...
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