Fuel Pump Cable Rating?

[Jonesy07]

Rebuild going well but have reached the part I've been dreading - the wiring! First item on the list is repairing the fuel pump cables.
Would I be correct in assuming that the rating of the cable should be higher than the fuse rating? Apologies if this is a bit simplistic but have no experience with electrics.

Also have a new brake master cylinder though it turns out to have m12 front connections and m10 rear - can i simply fit reducers?

Many thanks.

[Jonesy07]

Thanks for the cable info.

Previous owner fitted extensions from the existing cables to fuel pump using scotchlok connectors. I intend replacing these with soldered joints.

I bought a FIESTA 1.8D Brake Master Cylinder 89 to 94 TRW 6170668 89FB2140BA - 22.2mm