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View Full Version : Half-mile long extension cord


a74392
Jul 20, 2012, 08:59 PM
I want to run a small well pump about 2500 feet from my house. There is a pond at the other end of my property that has slowly dried up, and I want to run a shallow well to fill it back up.

I'm considering just putting a solar panel there, but I'm concerned that it may be too visible and could get stolen.

What would be involved in getting a five amp output, 115 volts, at that distance? Would I need to step up the voltage and then step it down? Not sure what the terms are for this type of equipment. Thanks for your help.

Chuck

sinnadurai
Jul 20, 2012, 10:15 PM
I want to run a small well pump about 2500 feet from my house. There is a pond at the other end of my property that has slowly dried up, and I want to run a shallow well to fill it back up.

I'm considering just putting a solar panel there, but I'm concerned that it may be too visible and could get stolen.

What would be involved in getting a five amp output, 115 volts, at that distance? Would I need to step up the voltage and then step it down? Not sure what the terms are for this type of equipment. Thanks for your help.

Chuck
Try a windmill driven pump

ebaines
Jul 25, 2012, 06:36 AM
In general it's a good idea to size conductors so that the voltage drop is no more than 3% or so. To help you determine the appropriate cable size, see the voltage drop calculator here:

Voltage Drop Calculator (http://www.csgnetwork.com/voltagedropcalc.html)

For a 5 amp load at 120 volts with half circuit length of 2500 feet it looks like a 1/0 cable would do it.