when my home flooded with 9' of water the power stayed ON. the service panel (completely submerged) stayed ON. full power to entire house; in fact we powered the trash pump from house power to suck the water out. water is a lousy conductor of electricity, it almost doesnt conduct at all but the impurities in water do. apparently the water that flooded my home was clean enough that it did not conduct electricity even when submerging the service panel and entrance.
as per the "upside down" edisons, the ones mounted with ground pin DOWN are upside down. look at most other plugs/outlets in the code and they are ground pin UP.