Running power to two outbuildings
I have a chicken coop that sits approximately 100' to 120' from a pole barn. I have wired the coop with a 20amp receptacle and three lights. I will be building a garden shed near the coop and will need a receptacle and lights in there as well. The receptacle in the coop will be used for a heated waterer and probably a heat lamp in the winter and probably nothing continuous in the summer. The receptacle in the shed would be used mostly in the summer for occasional power tools or small items. My plan to wire this would be a 30 amp breaker from main in pole barn, 10/2 wire buried to the coop. At the coop I am not sure if I need a sub panel or can I just run it into a plastic box and split it: running to the receptacle/lights in the coop and continuing on to the shed where I would probably have the same set up.(feed run to one or two receptacles and then to the lights) I don't forsee the receptacles being used at the same time for anything heavy duty and have no problem unplugging the waterer/heat lamp in the winter if I needed to run a power tool. What size wires would you use for each run? Thanks for the help!