They determined that the fire was started by a food dehydrator like you make your own jerky or dried fruits in.Hmmmm, old house burned down and it had an FPE panel...wonder what connection there is to that...:grin:
Even if the fire wasn't electrical in origin, I'd be willing to bet that the FPE breakers never tripped when the wiring got damaged by the fire.
Don't know if other than fpe breaker may have stopped it. Today with AFCI technology I would like to think an AFCI may have stopped it but they have not been around long enough to know that.
Was once told they only way we will ever know if AFCI actually works is if home insurance policies go down because you have AFCI's. That would mean there is enough statisics to show they do work.
I agree with this theory.