[Mobile-Portable] What Gauge Wire?

[kd4e]

Thanks, very helpful!  Will also save that site!

Question:  What is the result when one parallels two wires?
e.g. If one parallels two #10 wires is the result a current
handling capacity of #8 or #5 or ???


> Using the calculator at: http://nooutage.com/vdrop.htm, I calculate a good
> cable would be #8 with just under 1/2 volt drop.
> 
> I am assuming you are running about 20 amps with the HF rig, 15 for the VHF
> rig and other accessories mentioned.  That gives an estimated current draw
> of about 35 amps.  At 12 volts, #8 wire for 8 feet will be about .432 volts
> dropped.
> 
> On the other hand, #6 wire will give you a drop of about .276 volts.  
> 
> On the other side of the equation is # 10 wire with a voltage drop of about
> .7 volts.  Since #10 is rated at 30 amps, I suspect you will want at least a
> #8 or larger wire.
> 
> I hope this helps.  
> 
> Buck
> N4PGW



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Thanks! & 73, doc, KD4E
Personal: http://bibleseven.com/kd4e.html