Another shed question.
My girlfriend bought a house with a detached workshop/shed. The shed had existing electricity but doesn't connect to the house in any other way (no phone, no pipes, etc.)
The existing wiring in the shed had several things wrong (including a single cartridge fuse shutoff with about 5 circuits all wired into it!)
So I ripped all that out, installed a 6 breaker subpanel with separate ground bar, etc. I'm pretty skilled with wiring. My Uncle was a licensed electrician and when I was in high-school I wired our house when it was built. (My Uncle would come on Saturdays - inspect my week's work and give me lessons for the next week's work).
Here comes my question...
The existing underground wire from the house is only a 12-2 NM. That is wrong for two reasons. NM vs UF (see other recent discussion). But the 12-2 doesn't have a ground. So now I have a subpanel without an equipment ground.
We are planning on replacing the underground wire at some point (with something bigger and with a ground), but in the meantime, I'd like to ground the subpanel. There are no water pipes, etc. in the shed. Can I install a ground rod at the shed?