I have purchased 10-3 uf direct burial cable to wire to the transfer switch of my generator and back to the male waterproof receptical. I plan on taking one wire at a time off on the switch and the receptical to make sure I properly place them back. While I was at Lowe's I had a receptacle in my hand but did not think to look at the wiring diagram. Is it the same on all recepticles? What designation is on the receptacle that would match the colors of the wire?