Re: Fusing to the size of the wire....
Hmmm..... I'm not exactly sure how to use that table. It looks though like they're talking about house wiring though which would be 120v or 220v which, I believe, makes a big difference because the lower voltage of the 12v is creating more heat.
It also says that the values of the table might not apply for stranded wire, which is what I would be using.
"True, your boat will outperform mine to windward, but my boat will always outperform yours at anchor." --MedSailor