Buried 50A power to my RV
Yes, I should get an electrician to do this. That said: Right now, my 50A cable is stretched out along the edge of my driveway. I have a 50/30 dogbone connecting my 30A extension then a 30/15 adapt...
Forum Discussion
KD4UPL wrote:
I'm an electrical contractor and I almost never direct bury anything. PVC conduit is cheap compared to having to dig cable back up to fix a break to add more wires. With conduit it's a fairly simple matter to add more wires, larger wires, extra wires, or new wires when an old one fails. With direct bury your stuck with what you have unless you dig it up again.
For that distance I would run at least #4 for the hot wires. #6 would be fine for the neutral and a #10 is all that's required for the ground.
Emphatic agreement with this and almost every other suggestion. A few months ago I priced direct burial cable and got knocked to my knees.
When I buried 120vac cable for Quicksilver, I used a dedicated 1" ABS line and 8-gauge wire. Not THHN but tinned 600 volt marine individual wires. The power post has a waterproof 120vac blue LED power verification lamp. If I had 257 vac service I would have two blue verification lamps. Believe me, I think they help. The ground is a nightmare of rock. It took Jesús a week with an eight-foot-long octagonal bar to bust 18" deep.
