Electric brakes blow fuse??

I've had 3 total brake failures where my Techonsha P3 brake controller was getting "Current Overload, No Brakes". All 3 times were due to wire insulation wearing through caused by friction and shorting out. Twice the short was in a hub and once in the wiring that was running through the axle. I have Dexter axles which were replacements for the original Lippert axles. Dexter fixed 1 failure just as my 2 year warranty expired.