Biggest Junction Box In Attic

The same basic national electric code or nec rules apply.

Biggest junction box in attic.

Although code inspectors might accept either arrangement many builders prefer to mount junction boxes on the joist s top surface. There are two options for mounting boxes that are wholly contained within the attic. Yes junction boxes in attics suspended ceilings and crawl spaces are legal. Is it ok to mount a junction box to a roof truss support.

Basically the rule is that all wire connections must be accessible. You can attach them to the joist s side surface called the face or to the joist s top surface called the edge. 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. They are 2x4 in size.

The access to the attic is through a hole in my hallway that i have to get a ladder to go up through it. This video covers wiring of the attic junction box that splits main power coming in from the subpanel for the lighting elements and outlets. 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.

Fiberglass insulation around a junction box. If an electrical fixture presents any risk of overheating that fixture shouldn t be in contact with a flammable material such as fiberglass insulation. The junction box will be 10 feet from the access hole.