UF 6-2 Or 8-2 - Electrical - DIY Chatroom Home Improvement Forum

 DIY Chatroom Home Improvement Forum UF 6-2 or 8-2

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12-20-2010, 04:33 PM   #1
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## UF 6-2 or 8-2

Hello. New here. I need to run electric about 800 ft from our barn to power a couple lights and an electric gate. Is 8-2 good enough or do I need 6-2 and how deep should I bury it. I plan on running it next to the driveway. Thanks for any help.
Jerry

 12-20-2010, 05:17 PM #2 Member   Join Date: Sep 2008 Location: Massachusetts Posts: 305 Rewards Points: 320 800 ft is quite a distance so you will get significant voltage drop at that distance. You need to determine your power requirements first and then calculate voltage drop to size the wire correctly. What is the amperage draw for the devices that you are installing?

 12-20-2010, 05:22 PM #3 Member   Join Date: Jul 2008 Location: Pennsylvania, USA Posts: 272 Rewards Points: 250 Depends mostly on the load of the gate operator. 800 feet is a long ways away for a 120 or 240v circuit due to voltage loss. What are the specs of the operator? -voltage? -amps? -mfg/model #s are helpful What does the barn have that will provide the power? For a max of 5% voltage drop to the gate motor, 6 AWG will give you around 7-7.5 total amps to use at 120VAC. 6 AWG will give you around 14-15 total amps to use at 240VAC, but you would need 240V light fixtures. __________________ Willis

 12-20-2010, 05:23 PM #4 Member   Join Date: Jul 2008 Location: Pennsylvania, USA Posts: 272 Rewards Points: 250 ...jeez! I type too slow, I guess! __________________ Willis
 12-20-2010, 08:12 PM #5 Newbie   Join Date: Dec 2010 Posts: 2 Rewards Points: 10 Thanks for the replies. I don't have the opener, lights, or even the gate yet. Just trying to think ahead. However I would like to add some low voltage lights along the side of the driveway. I suppose 6-2 would be best. How deep should I bury this. I have a trencher that will dig 18". Jerry
 12-21-2010, 07:32 AM #6 Just call me Andrew   Join Date: Mar 2009 Location: Albany, NY Posts: 2,271 Rewards Points: 1,032 Code usually requires 18" cover for non-GFCI-protected circuits. GFCI circuits can go 12". I'd use THWN wires in conduit as opposed to UF wire, but UF is acceptable too. __________________ Andrew

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