I am starting to think about building an equipment shed with a concrete floor and expect to want to dig a trench to run electric wires. Would it be standard to assemble the conduit with an elbow to be embedded in the concrete and end above the level of the concrete floor? That way the wire path is from the house basement below grade, through the conduit in the ground, then turn vertical and go through the shed concrete all the way into the shed. That way the shed wall is not penetrated by conduit. Is the conduit also supposed to penetrate the basement composite concrete block wall?