Although code inspectors might accept either arrangement many builders prefer to mount junction boxes on the joist s top surface.
Biggest junction box in attic.
Yes junction boxes in attics suspended ceilings and crawl spaces are legal.
The same basic national electric code or nec rules apply.
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.
If an electrical fixture presents any risk of overheating that fixture shouldn t be in contact with a flammable material such as fiberglass insulation.
This video covers wiring of the attic junction box that splits main power coming in from the subpanel for the lighting elements and outlets.
Basically the rule is that all wire connections must be accessible.
The access to the attic is through a hole in my hallway that i have to get a ladder to go up through it.
Fiberglass insulation around a junction box.
They are 2x4 in size.
Installing an electrical junction box or j box in the attic is not much different from installing a j box anywhere else.
The junction box will be 10 feet from the access hole.
Junction boxes electrical junction boxes for home wiring understanding electrical junction boxes and what they are used for.
Making up joints in an attic.
Is it ok to mount a junction box to a roof truss support.
There are two options for mounting boxes that are wholly contained within the attic.