In a semi-quasi-kinda-sorta related way, today on Ask This Old House, they showed an electrician cutting the energized service drop at the POA and using a rubber cord to supply a power distribution module.
He was using bare aluminum set-screw-type butt splices to attach 3 wires of the 4-wire rubber cord, the other end of which had a female cord cap which plugged into an inlet on the power distribution module.
No OCP, no EGC (as far as I could tell), no metering, and only a layer of tape on the splices. Also, no protection at all, using blue-handled Kleins and a metal Allen-wrench set, and perched on a fiberglass ladder.
Now that I think about it, this might be a better post for one of the current working-it-while-it's-energized threads.