I've been searching for information on how to bring electrical service underground to a shed that will be sitting on a concrete slab 12" thick at the perimeter. The shed will sit about 6" in from the edge of the slab. There is plenty of information available on how to run underground conduits but I'm specifically interested in how the conduit passes through the concrete slab so that it is code-compliant (US Uniform Code) and how to prepare for this before the concrete is poured.
Electrical Metallic Tubing can be buried 6" deep. Can EMT that has been bent into an L exit the face of the slab and connect there to EMT coming from the house, and emerge from the slab inside the shed just beyond the sill plate? Or does the EMT have to emerge outside the shed and connect there to a box and from that box pass through the wall of the shed?