Biggest Junction Box In Attic

This video covers wiring of the attic junction box that splits main power coming in from the subpanel for the lighting elements and outlets.

Biggest junction box in attic.

The junction box will be 10 feet from the access hole. The access to the attic is through a hole in my hallway that i have to get a ladder to go up through it. Although code inspectors might accept either arrangement many builders prefer to mount junction boxes on the joist s top surface. They are 2x4 in size.

There are two options for mounting boxes that are wholly contained within the attic. The same basic national electric code or nec rules apply. Is it ok to mount a junction box to a roof truss support. Junction boxes electrical junction boxes for home wiring understanding electrical junction boxes and what they are used for.

Basically the rule is that all wire connections must be accessible. In other words you can t cut a hole in a wall or ceiling and bury a junction box by covering it with drywall paneling tile or whatever. Installing an electrical junction box or j box in the attic is not much different from installing a j box anywhere else. Making up joints in an attic.

Yes junction boxes in attics suspended ceilings and crawl spaces are legal. You can attach them to the joist s side surface called the face or to the joist s top surface called the edge. One very important component is the box where the wire will be installed.