Running 500 feet of underground wire.

[Got2BTru]

#10 wire won't be nearly big enough to get a 15 amp circuit at that distance.
wire size calculator

THANK YOU for this! I'm going to have to run 1300 feet and if I've entered correctly, I need 500 MCM copper or 700 MC aluminum....now to see where I can purchase it INEXPENSIVELY!

 

[Mendonsy]

What are you running?? That's a lot of amps!

 

[aczlan]

THANK YOU for this! I'm going to have to run 1300 feet and if I've entered correctly, I need 500 MCM copper or 700 MC aluminum....now to see where I can purchase it INEXPENSIVELY!

For that long of a run, look at getting a pair of transformers to step the voltage up (to from 120v to 480v), then back down to 120v.
They will probably be a couple of hundred apiece, but for that long of a run they might be cheaper than heavier wire.

Aaron Z

 

[check]

It seems like you should be able to get away with a water line anti-siphon valve located near the high point of the air line for that.

Yes, that is probably all I need. Will have to check out prices now, on airline, and on pumps.

 

[buickanddeere]

For that long of a run, look at getting a pair of transformers to step the voltage up (to from 120v to 480v), then back down to 120v.
They will probably be a couple of hundred apiece, but for that long of a run they might be cheaper than heavier wire.

Aaron Z

It's Canada, we don't bother with that wimpy 480V We use 600V.