ponytug
Super Member
Yes, that would be NEC minimum, right? It would be a lot easier to make and pull a vault at that depth.
He wrote four feet, and I have no reason to doubt that. I think my well pump power line is below 24" here, but I haven't dug down to find it exactly. With all the burrowing animals around here (ground squirrels, coyotes, foxes, and badgers), if it were me, here, I would bury wire at least 48" or use conduit below 24" just to get it out of the way of the varmints. The badgers are amazing to watch and seem to disappear into our rock hard soil as if it is water. All of which reminds me that I need to go rototill some of the steeper slopes to spread some burrow mounds that are getting too tall to safely drive over. My limit is 30 degrees, and on a 20+degree slope, it doesn't take much of hump to make driving the tractor very uncomfortable.
All the best, Peter