I live in "one of those" subdivisions where everyone has a pole light mounted to their brick or stone mailbox at the end of the drive on the street. The light is supposed to be on all the time in darkness, hence my problem. Last year mine stopped working in the middle of the winter. This happened during a major cold snap where there was a lot of rain, then major cold and snow on top of it all. I live in Georgia, this is a very rare weather event. Anyway the circuit tripped. Also on this circuit is the front entry way to my home, some light switches and a few outlets. In the crawl space of my home there is a grey power cable which drops down out of the front foyer of the house and connects in a box to another grey power cable that then goes through the foundation and down the lawn to the mailbox. I simply disconnected the circuit in the crawl space so at least I have power to the front of my home, however the mailbox light of course doesnt work. I am now trying to fix this. There is a box at the mailbox and I seem to have continuity between this box and the crawlspace of my home. I also have continuity between the mailbox box and the wires where they connect to the fixture. I have replaced the fixture, that wasnt it. Before I go and dig up 80 feet of buried wire, are there any suggestions? If an animal chewed through the buried wire, would I still have continuity? Cause I seem to have just that.