ponytug
Super Member
I'm sure that you can pull the cable out of the wall, and I am sure it is going to be a production, as you will need to dig down to wherever the transition from conduit to direct burial is, and dig enough of a hole to work in. Or just dig farther back, and abandon more of the direct burial cable. 200A direct burial for a long run is not going to be readily manipulated.Thank you. I was thinking it was something like that.
As your line is 48" down, I would think about a temporary or permanent "box"/vault that is big enough for someone to actually work in, unless you do the splice to the shop wires now, and run them out to the shop location now. Commercial vaults commonly come in galvanized steel and concrete, often with bottoms to reduce infiltration of water and soil. You could pull the vault later, or not, depending on whether the location makes sense long term for the road and your entryway access. With your skills, I have confidence that you could cast one in place yourself. Around here, precast concrete suppliers have a wide range of them. Again, if you can pull the line to the shop now, you could skip the vault.
I believe that OSHA trench depth without shoring is five feet, and I bring it up as a general safety pointer. I do know that 48" is uncomfortably deep for me without shoring. That may be a function of being in an earthquake prone area, or having seen trench collapses, or that I'm risk averse to some things.
I look forward to photos when the time comes.
All the best,
Peter