I appreciate that you do know what you are talking about cause I know nothing about electrical stuff. So maybe use the pvc but keep the ends open....Thank you Maidenwolf. That is very sweet of you to understand.
I have an entire infrastructure of extension cords running every where. I really want to put in underground wiring but it is very expensive and after studying the gauge I need for all my buildings I would need to win the lottery to run it. That is one reason why I am rethinking my entire plan about where and how to house all the birds. We do have some extension cords run in a pathway inside about a 1 1/4 " piece of PVC pipe on top of the ground where we walk all the time. Both ends of this are open however. When you have a sheathed wire and enclose it, it can dangerously build up too much heat and short out and or catch fire. I ran some wire between two hen houses and simply used normal 12-2 electrical wire but took the outer plastic sheathing off and put it inside of conduit under ground.
Okay I am sounding like a know it all again. I did go to school and learned electrical principles for my career , plus my brother is a an electrical engineer, so if I have questions I consult. I don't use it enough to remember everything but at least I try to remember basic code. I have what would be considered a very poor setup because there are cords and plugs out in the open. I did try to cover the outlets once with plastic but soon discovered that was much more dangerous than having them in the weather. It is better to just to set them off the ground and or cover them with a loose top than entirely enclose them. I have ground fault outlets installed from the house so if there is a problem we have a backup for safety.