What is the difference between indoor and outdoor wire? Someone told me the only difference was the color. They said the two were identical other than that. He told me that since I was going to be buring the wire in pvc, going to my storage building, that it wouldn't matter since I live in a county that does not require a permit or inspection for this to be done. Was he right or is there a performance/saftey difference? Any help ASAP would be helpfull since I'm going to run the wire this weekend. Thanks for the help. I also want to run a phone line to my building, can I run it in the same pvc or will there be feedback or anything in the phone line? Thanks again.