Installing Ceiling Light Junction Box

Round square and octagonal boxes.

Installing ceiling light junction box.

To connect the light fixture to the junction box screw in the crossbar the nipple lock nut and the screw collar loop. Installing a ceiling electrical junction box 1. Place the open side of the ceiling junction box that came with an expandable brace kit against the ceiling where you. But for many diyers the wide variety of boxes is bewildering.

New work and old work boxes. Find the joists near where you want to install a ceiling electrical junction box by sliding a stud finder over the. Plastic or pvc boxes. All of the most commonly used boxes for home wiring projects are available at home.

These boxes are inexpensive and easy to install. Choose from many junction box sizes to find the one that best suits your project. Use for exposed indoor applications such as with conduit in an unfinished basement. To do this first thread the screws or pipe through the crossbar.

The box is grounded through the correct use of the cable connector and the bx armor. A grounding pigtail was added using number 14 wire and a 10 32 green ground screw. The finished replacement of an old style pancake ceiling electrical box ready for a standard light fixture. Electrical codes generally require that all electrical devices and the wiring connections to those devices must be enclosed in an approved electrical box often known as a junction box this metal or plastic box includes a cover to protect the wiring within and protect you from the wiring.

This rule is demonstrated nicely by wall switches receptacles and standard light fixtures all of. Whether your light fixture is held to the box with screws or a threaded pipe the two mounting systems shown here the key to an easy installation is assembling and adjusting the parts before you crawl up on the ladder. Electrical boxes are critical components of your home s electrical system. Number 10 x 1 5 sheet metal screws were used to secured the pancake box to the ceiling joist.

Trace the outline of the back of the box on the drywall using a pencil. On a flat surface attach the adjusted chain to the light. Use only with nonmetallic cable. The procedure for installing a remodel junction box calls for a pencil drywall saw and screwdriver.

There are plastic and metal boxes. Plastic electrical boxes can be placed behind drywall. Cut along the trace line with a drywall saw and remove the cutout. The box above is ready for a standard light fixture installation.

Place the back of the box on the wall or ceiling and adjust it straight and level.