Ethan Brush said:
> @SupraLance said:
> I love the idea of stepping voltage up and back down to bring in utilities cheaper, but a 2400v line buried only 7" down over 1900' sounds very dangerous. Would not want to hit that with a shovel....
If the utility was running the line in, they would not even put it in conduit and it would generally be 7200 volts. Granted they would put it (usually) 36 " down, but here is the thing with burial depths - this is a pet peeve of mine- I don't see that going deeper makes it safer. Actually maybe even the opposite. When you are digging with a machine, , the deeper you go the harder it is to see down to the bottom. I think you are more likely to see and catch a conduit buried 12" than 36" . Regarding hand digging, I just don't think it is very likely that one would be hand digging and hit and damage , let alone not even see a shallow buried line. I mean there is some common sense that needs to happen here, I wouldn't run it through the garden for example. One can certainly go deeper if it makes you sleep at night, but my point was that 7" bed edger machine can go through trees where nothing else can get to. In my case, it was 1900 feet through the woods. Clear cutting a swath for the tractor to get through was absolutely out of the question. Even if I could slither the tractor through the trees, I love my trees and wouldn't want to do all that damage digging a deep trench. Of course trenching down the driveway makes sense, but for me much of my driveway is ledge and It wold be twice as far following the driveway.
For full code compliance, one could use IMC (intermediate metallic conduit) which would only need to be 6" deep. It's a big cost jump from schedule 40 pvc though from 20 cents a foot for the pvc to about 1.20 for the IMC. I guess in the scheme of things, that's only $2500 premium for a half mile run and better for the environment.