Situation. I have a 75ft run from my Array. To a Power room. I have access to a Lot of Rolled Copper 1/2 pipe. enough to make a pos and neg feed.. I intent to feed the pipe through PVC Grey conduit. Around 200 amps going in from the array to the Power room CC Then to Battery Bank. I have the frame built to put the panels on and soon weather permitting I will start the wiring of it up
Ray Dale Gene
Have you guys done anything like this. The Reason I am asking is I have lots of this pipe and I thought I had read on the old site one of you had already don something similar. I think the Pipe should carry at least 300 amps easy.
If you have done this Please give me a heads up.
I do not need comment from the pro installers that phish this form.
I assumed you are talking about a 12 volt nominal system with about 18 volt panel voltage. With an 5% voltage drop, you would need a 00 gauge or 2/0 gauge solid or stranded copper wire( very big diameter). If you would run 200 amps on that 00 gauge and you want only a 5 % voltage drop yo could run your 200 amp power only 58 feet. And that is using regular copper wire.......not pipe. A 5 % voltage drop in this case would look like this. 18 volts input at the solar panel and after 58 feet your voltage would be 16.8 volts.
It would be better to series the panels to get 60 volts or even 90 volts then your wiring could bee smaller or you could have longer runs. Then use a MPPT controller to charge your batteries. Higher voltage means that your amperage would be lower while using the same wattage.
For example..... You need 100 watts. @ 12 volt that amperage would be 8.33 amp. @ 24 volt that amperage would be 4.16 amp.
Or you could built your power-building/shad close to your solar panels and invert your power to 110 volts AC right there at the power-building, Run this AC 110 volt power to your house and I would use a # 10 wire to run that 110 volt power to your house.
What is the wall-thickness of that pipe? What is outer diameter and what is the inner diameter? I can try to calculate how many square inches of copper that pipe has and then I could calculate how many amps it could handle according per electrical physical laws.