How to connect wires when the distribution box is obstructing them

With the electrical box installed, carefully pull the electrical wires through the knockout hole and into the box. Before you can mount a new receptacle, you will need to run cable from the power source to the new box location. Following is how to do this with or without easy access: Nonmetallic cable is routed between wall studs; switches and receptacles fasten to electrical boxes. When choosing one, check the IP or NEMA rating. Fix the box securely to the wall, ensuring it's at an accessible. The actual splicing process begins with the deliberate act of creating pigtails, which are short lengths of wire used to connect multiple circuit wires to a single device terminal.