Hi Beagle,
Current policy on most types is to allow one reset/replacement of a CB or fuse, where it is known that the wiring is not Kapton. Even if it is Kapton, if the reason for the CB trip is known by the crew, ie a power surge or interrupt throughout the jet or a switch pigs, and it is safe to do so, then it can and should be reset. We have a job to do.