How to Wire a House for Entrance Lights
- 1
Double rocker light switcheslight switch image by Christopher Hall from Fotolia.com
Mark the spots where you will be mounting the entrance lights. There aren't any rules about mounting height for the lighting outlet boxes, but 66 inches above the finished floor line is considered standard. Use the electronic stud finder when locating these boxes to make sure you won't be drilling and cutting into a structural framing member. - 2
2-gang boxelectrical box image by jimcox40 from Fotolia.com
Outline the cutouts to be made in the siding, using one of the "Old Work" weatherproof lighting outlet boxes as a template. Set the hole-cutting attachment's diameter to cut a hole 1/8 inch larger than the outlined hole. Drill out the cutout. - 3
Battery-powered drill/driverdrill image by Albert Lozano from Fotolia.com
Route a length of 12/3 Romex cable from one lighting outlet box cutout to the other. The easiest way to do this is to employ the up-and-over method. Working from the attic or the attic crawl space, drill a 1/2-inch hole down through the wall's top plate into the wall space on each side of the door. Feed the cable down through theses hole and out the cutouts. Cut the cable long enough so 10 inches extend from the holes. - 4
Portable jigsawelectric saw image by Albert Lozano from Fotolia.com
Turn off the circuit breaker controlling the interior entrance light switch. Remove the switch plate and the two 6-32 screws securing the switch in the box. Disconnect the wires from the switch and set the switch aside for later use. - 5
Jigsaw with blade showingcarpers prepare for sawing plywood 2 image by Graf_es from Fotolia.com
Install the metal-cutting blade in the portable jigsaw. Flip the blade between the single-gang device box and the stud it's secured to and carefully cut the nails securing it in place. Be careful to not cut into the cables entering the box. Pull the old box from the wall opening and remove the cables from the box. Secure the cables so they don't slip inside the wall. - 6). Exchange the metal-cutting blade for the wood-cutting blade and enlarge the wall opening to accept the 2-gang device box. Use the box as a template to outline the opening.
- 7). Run a piece of 12/3 Romex up from the expanded box opening to the first lighting outlet box opening. Cut it long enough so it extends 10 inches outside the openings.
- 8). Insert the ends of the cables into the boxes, the 2-gang switch box and each of the lighting outlet boxes until they extend 6 to 8 inches from the boxes. Insert the boxes into the wall openings and secure them in place by turning the mounting screws clockwise, drawing the mounting wings securely up against the backside of the wall finish.
- 9). Remove the outer jacket from the cable ends using the razor knife, being careful to not damage the insulation on the individual wires. Remove ¾ inch of insulation from the ends of the insulated wires.
- 10
Splice all the black wires together, all the red wires together, all the white wires together and all the bare wires together in the lighting outlet boxes. To make a splice, hold the stripped ends side by side and twist tightly together in a clockwise direction using the lineman's pliers. Once twisted together, screw on a wire nut. - 11
Secure the fixtures to their boxes. - 12
Cut two 6-inch pieces of black wire and strip ¾ inch of insulation from their ends. Hold each of them against the stripped end of the black wire bringing power from the breaker panel into the switch box and splice together. Form loops in the free ends of these wires using the needle-nose pliers. Make up a similar splice using bare copper wire for the bare grounding wires in the box. - 13
Splice the white wires together. - 14
Connect one of the black pigtail leads to the bottom of the original switch and the second black pigtail lead to the bottom brass screw on the new switch. Connect the bare grounding pigtails to the green grounding screws on each switch. - 15
Connect the original black wire carrying power to the interior entrance lights to the top brass screw on the original switch. Connect the red wire to the top brass screw on the new switch. This wire is the bypass wire on the motion sensors. - 16
Install the switches in the box and install the new cover plate. Turn the circuit breaker back on.
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