House Wiring Installation Guide - Diagram Chart House Wiring Installation Guide - See more about House Wiring Installation Guide, How to Install Electrical Wiring | DoItYourself Whether it’s just installing a new light switch or an outlet, knowing how to add wiring to your home is an essential skill.Attaching Cable For New WiringLoosen the screws holding the receptacle in place and remove it in order to add wiring. Take care to make sure you attach the correct size of cable..Adding New Wiring from A Junction BoxNew wiring can also be tied into a junction box, so long as there is excess capacity. Once the power is shut off, carefully trace the cables connec..Tying in New Wiring at A Ceiling LightIf your light fixture isn't controlled by a switch, you can tie new wiring in order to add it. Make sure the power supply is shut off and then conn..Always Match Connectors to Type of Cable UsedDepending upon the type of box you have purchased, it may or may not come with built-in connectors. There are two main types of cable connectors yo..Make All Connections in Approved BoxesUse only boxes that are approved for your electrical application and never use an open-line splice when adding wiring. Properly position all boxes..Running New Cable Between Multiple FloorsDrill a hole wide enough to accommodate the hardware from top to bottom through the floor in a recessed area behind the wall. Then thread a cable t..Adding New Wiring from Ceiling BoxesHomes with attics may be more easily wired by using ceiling boxes. This method uses gravity to make the job of adding wiring easier. Start by attac..Adding New Wiring on The Same WallCable can be run between existing and newly installed outlets by running it through the wall. Find the spot (not on a stud) for the new outlet and..