Invisible wrote:
> scott wrote:
>>> (Woah - 63A? o_O Anybody know what thickness of copper it takes to 
>>> handle that kind of currentl? That's gotta be more like a girder than 
>>> a wire!)
>>
>> Roughly double your standard 13A cable would do...  Look at the cable 
>> going to the starter motor on your car, that's usually 100A or so.
> 
> 1. A car runs on 12V electrics, not 250V. Does that make a difference?
> 
> 2. Is maximum load proportional to diameter or cross section area? (The 
> latter is quadratically propertional to diameter.)

Hmmm... Here's some info:

http://www.powerstream.com/Wire_Size.htm
http://www.epanorama.net/documents/wiring/wire_resistance.html

According to the one site, 6 AWG wire would be enough. Next size up if 
over 100 ft. :)

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