Voltage drop

You might be better off asking the power company to place a pole and mount a meter at the base. Your looking at #2 COPPER / 75C with a #8 copper ground. This needs to be in conduit, couplings, hangers, hardware, suck in a string, pull in a rope, wire lube, ect... Based on 75/C #2 copper you get a Voltage drop of 11.1 / 3.4%. (Electricalc Pro) Any more info on where you live and what your wanting to do?

James

In order to keep the voltage drop within 3% you need to use a 2AWG cable, this would give you about 201 volts at the load

#2 AWG Copper

The latest edition of the Wiring Regulations by the Institution of Electrical Engineers can provide illumination on this subject.

As is the case with a large majority of the questions and answers in this forum, you need to verify the requirements for voltage drop in your jurisdiction.

Some posters have suggested that the use of a #2 copper conductor will meet your need. Perhaps it may meet the criteria you presented in the jurisdiction of the responders to your question.

But as you asked about an aluminum conductor... In my region a 3% voltage drop is the maximum permitted on a feeder. As such, given the conditions you mentioned, a 2/0 aluminum conductor would be required for this feeder.

If the conductor was made of copper, a #2 would still not meet the requirement in my region and a #1 conductor would be required.

Therefore... may I suggest you verify the code requirements for maximum voltage drop in your jurisdiction then consult a document such as PW Slack has mentioned.

For an excellent spreadsheet...

http://mikeholt.com/documents/freestuff/other/VoltageDropCalculator.xls

Rick...

Thanks for that link North of 60. Great tool for anyone's toolbox.

I asked where he might live. In America he will use the National Electrical Code. It recommends in Article 215 that the voltage drop not exceed 5%,.... "will provide reasonable efficiency of operation". If he uses 2/0 Aluminum his conduit costs will be much higher. Using EMT as an example he will need 4". If he uses #2 copper he will use 1 1/2. #2 copper will also be easier to pull and the risk of damage will be much lower. These selections can be minimized to a degree by selecting different temperature ratings. He might be better off seeing if the power company will place a pole for him, or placing a step down transformer at the end, thereby using smaller wire as feeders.

James