Join Date: Sep 2008
Location: Victoria B.C. Canada
Thanked 109 Times in 100 Posts
Rep Power: 10
It is not just how much amperage the wire will handle (ampacity), but the voltage drop over distance. Use this link to find gauge for amps/distance at your choice of voltage drop. I recommend 3% or less and remember distance is there and back.
AWG by wire length/amps calculator
Living aboard in Victoria Harbour