Since 2004, I've lived part time off grid in a couple trailers in the middle of nowhere in Southern Utah with rattlesnakes and bazillions of mice and pack rats. When things begin to get chewed, I apply the foil tape if the chewing hasn't penetrated to any conductors and it stops. My neighbors report the same.
At the same location, I operate a wireless ISP that has several remote solar powered sites. Same problem, same solution.
At least in my location, the vermin hates the metal tape. It is pretty thick - much thicker than household Reynolds Wrap.
Now, I pre-emptively use it whenever any wiring that the miserable bastards can get their teeth around can be accessed from the ground or by climbing up whatever. Occasionally, they surprise me with their abilities and manage to get to something that I never would have imagined they could get to, but that's my fault.
"Ounce of prevention...".