What is a ceiling junction box?
Similarly, you may ask, can you put a junction box in a ceiling?
Junction boxes, with blank covers are allowed above a suspended ceiling as it is not considered a closed space. Some boxes have clamps pre-installed, if not, you need to use a RX connector in the knockout. Hard to tell from your pics if they are installed. Also, an open hole in the j-box with no wire is not acceptable.
Also, can a light fixture be used as a junction box? No, there's no way a fixture can be used as a junction box. Yes, romex can be ran in pvc. There is a wire fill calculation that should be done when running wires in conduit, however, it won't be an issue for a few lights.
Considering this, what is the purpose of a junction box?
What Junction Boxes Do. A junction box performs several essential functions: Encloses the wiring connections and protects them from physical damage. Provides a means for mounting the electrical device and securing the electrical cable(s) serving the device. Prevents accidental contact with live wires and terminals.
How do you replace a junction box on a ceiling?
How to Replace a Ceiling Electrical Box
- Turn off the breaker inside the main electrical panel that supplies electricity to the ceiling electrical box.
- Go into the attic and located the ceiling box you want to replace.
- Remove the box from the ceiling.
- Install a plastic replacement ceiling box that's rated for 50 pounds.