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Startfireman 03-26-2008 12:36 PM

Long Distance Outlets
 
I need to install 2 each 15 amp outlets that are approximately 200 lf from an existing meter. (this is in a pasture)

I plan on using 2/0 Aluminum direct bury wire. (3 wires going from either a disconnect or breaker to a breaker box at the end of the run)

Do I install a breaker or disconnect at the meter? Would a disconnect give me 240 volts vs 120 on a breaker? What size breaker would be needed? Does the breaker box need a ground rod?

I will need 2 each 120 volt breakers at the end of this long run.

Any suggestion. I can get it from the final breaker box to the outlets.

220/221 03-26-2008 02:26 PM

1. 200' isn't that long. #10's will carry a decent load.

2. Skip the direct bury. Use PVC and thwn, black, red, white and green.

3. Start from the breaker and terminate in WP outlet box.



Did you mean 2000'?

micromind 03-26-2008 06:14 PM

Assuming you're trying to minimize voltage drop, #10's have a resistance of about 1 ohm per 1000'. At 200' out and 200' back, you'd be looking at 4 ohms total. With a 10 amp load (a water tank heater possibly?) you'd lose 4 volts. Well within reason.

I'd use 3/4" PVC, and 4-#10's, as suggested above. Direct-bury will almost always get nicked or eaten through by various varmits, PVC is a bit tougher. Plus, if you ever need to add more stuff later, (no one ever does, right? lol) with PVC it's usually doable, with direct-bury, it's a little harder.

Rob


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