all a short means, is that some how the wire got grounded BEFORE the load....result...the part dosnt work because the electricity found a faster way back to the battery. If that is all that happened then the fuse wont blow, no power was added, just rerouted. The only way a fuse is goin to blow is if more power than what the fuse is rated passes through. If a short accures, it WILL NOT affect the fuse, unless an outside power came into play.

"Short" means short to ground. Not short to power surge.