I am intending to replace some wire that runs for 200 feet, from my meter to my house.I live on an island, so the run is quite long !

At either end are breaker boxes with 100 amp fuses in each.Never had any trouble/ fuse blows etc.

The old wire (each of the 3 strands) are a little over 1/4 " in diameter. It's old so has no gauge indicator.

Do you think I should be looking at AWG 1 to replace it with?

Thanks for your help.