If it's the alternator 60-amp breaker that's popping, the problem is likely an old breaker. Those breakers are thermal devices, with a bimetal conductor in them that has a tiny bit of resistance to cause heating and bending of the conductor to pop the breaker if the current gets too high. The contacts in them oxidize with age, introducing additional resistance that pops them off a lot sooner. That can happen to the other breakers as well.
And it can happen to fuses, too. Their holders get oxidized and add resistance and heating, and since the fuse is also a thermal device, it lets go too soon. Sometimes it's actually old crimp terminals on the wires connected to the fuseholder or breaker that's the problem; corrosion causes resistance and heating and early fuse or breaker opening.
A tired alternator won't cause breakers or fuses to pop unless they're feeding more modern stuff like some avionics that will demand more current as voltage drops, to keep the power consumption the same.
Alternators should be opened up every 500 hours anyway. Their brushes wear and fail and leave you in the dark.
Breakers or fuses popping off everywhere might be a sign of serious overvoltage. Bad regulator, maybe.