Check that the cables youre using. Decide whether to run the cable directly across the room from wall to wall around.

Wiring An Existing Home Through The Walls
How to run cables. Use a fish tape or a fish stick a rigid pole for pulling wires when you need to pass them through the wall plates to the floor above or below the one on which youre working. Do the same thing for the other positive wire and the 2 negative wires. However tying the wiring into the service panel circuit breaker box and thus electrifying the wire can be an uncomfortable task for many amateur electricians. Use a measuring tape or ruler to find the length of your cable and compare it to the path you. Schedule 80 pvc 12 in conduit elbows and couplings for containing the wires and connecting the exterior boxes. Preparing the space 1.
When working from a basement inspection of the area in contact with the foundation or sill will be required. Drill destination hole in floor. Cut the bottom straight portion off from a metal coat hanger. Be sure to leave enough slack on both ends to make connections. Feed cables through the holes. Running electrical wire through the walls and hooking the wire to end point devices is an easy and safe task for a skilled do it yourselfer.
Plan out the path for the cable. When working from an attic space it will be significantly easier to access a wall space on the floor below by. A cable clamp for running cable through the back of the box from the garage outlet. Burying the cable 24 inches requires more digging so this method only makes sense if you have easy to dig soil or are renting a trench digger. Feed the wire through the back of the outlet box insert the box in the wall and mount it in place. Support cables at 4 12 inch intervals with appropriate staples or clamps.
Use pvc cement for joining the parts. This may involve fishing it through another wall cavity or out a small hole drilled in the floor. Use duct seal putty to seal the wall penetration hole to keep moisture out of the box. Run wire through hole. At 24 in deep run direct bury uf b wire cable. It needs a conduit where the cable is exposed on the outside of the house and to 18 inches below the ground.
Splice the 2 power cables together using the security camera wire connectors and then insert the exposed copper wire from the positive conductor into one end of the connector.