To Avoid Disconnecting Electricals once Pouring Concrete, you have to Measure the length of the needed electrical run with a tape measure. After that, unscrew the wires from wherever they terminate. You need to run the wires through PVC conduits cut in order to fit the measured length with a hacksaw. You must Attach PVC elbows to the ends of the conduits with covering the end of the conduits and the interior of the elbows with PVC primer. You should Wait thirty seconds and place a layer of PVC cement over the primer before attaching the elbow in place.
You can attach an additional PVC pipe to the elbows in order to raise the wires above the proposed surface of the concrete slab. You have to reconnect the ends of the wires. Then, Lay the conduit on top of the rebar layer in the slab. You need to attach the conduit to the rebar with using wire ties placed every five feet along the conduit length. Next, Pour the concrete over the conduit and rebar.