View Full Version : Sparky thread time. What gauge wire for direct bury?
HBARleatherneck
10-20-2016, 17:00
I am going to run a direct bury wire out from my barn (100-120ft) to where I am installing an automatic waterer. This will be used to plug in the heater. They run from 225 watts to 1500 watts. That is all that would run off of this line. I will do a gfci there.
I think last time I did this I ran 10-2, but its been a while.
newracer
10-20-2016, 17:27
12.5 amps so I think you need at least 12 ga, maybe more depending on how far it is.
SideShow Bob
10-20-2016, 19:03
The calculation for that load (12.5 amps) & distance (120 ft.) works out to 10 AWG, for a 3% loss...
Be sure to get the UF (gray, underground DB rated), not the white non- DB rated Romex.
HBARleatherneck
10-20-2016, 19:15
Thank you.
This Is what I think I used last time. I planned to use it again as long as you guys said it was ok.
250 ft. 10-2 Gray Solid UF-B W/G Cable
http://www.homedepot.com/catalog/productImages/1000/e8/e8ccbcc5-2193-4b1f-95e7-19e2c8990f13_1000.jpg
SideShow Bob
10-20-2016, 19:29
You're welcome, by the by, the code also states that it the circuit breaker at the panel can be no larger than 15 amps.
BPTactical
10-20-2016, 21:25
See, ya get Bob amped up and he's full of useful info!
BladesNBarrels
10-21-2016, 08:45
See, ya get Bob amped up and he's full of useful info!
An electrifying revelation sparking great interest
Great-Kazoo
10-21-2016, 08:49
Way to short circuit a thread, guys
StagLefty
10-21-2016, 11:17
Shocking replies [ROFL2]
fportmen45
10-21-2016, 11:53
www.youtube.com/watch?v=iX3kxAA2L4Q
SideShow Bob
10-21-2016, 15:40
Watts for dinner ?
BPTactical
10-21-2016, 18:36
Ohm your so funny Bob, stay current with the thread.
SideShow Bob
10-21-2016, 19:53
Resistance is futile...
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