electrical junction box in ceiling A junction box provides a safe, code-compliant space for housing cable connections for outlets, switches, or splices. They prevent potential electrical shocks, and keep sparks from spreading to flammable surroundings. The most common screw size for metal or plastic electrical boxes is the 6-32 machine screw. This screw size is suitable for outlets and switches. If you find that a 6-32 screw is slightly too small, you can opt for an 8-32 screw.
0 · types of ceiling junction boxes
1 · suspended ceiling junction box
2 · junction box wall mounted
3 · installing junction box in ceiling
4 · install ceiling fan junction box
5 · electrical junction box requirements
6 · electrical box for suspended ceiling
7 · ceiling mounted junction box
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types of ceiling junction boxes
A junction box provides a safe, code-compliant space for housing cable connections for outlets, switches, or splices. They prevent potential electrical shocks, and keep sparks from spreading to flammable surroundings.You’ll need a specialized ceiling box designed to handle more weight to .Junction boxes, with blank covers are allowed above a suspended ceiling as it is not considered a closed space. The wires that are loose and wirenuted need to be put in a j-box. Also, clamps need to be used at each wire going into a j-box.
suspended ceiling junction box
Then you'll have a 4" round hole in the ceiling. Then you can install an "old work" box to the joist or whatever attachment point is available, or simply to the drywall itself using certain types of "old work" boxes. Use a lightweight, low profile fixture that you're not likely to .
Device (switch) boxes are 6-32. Junction boxes like that one are 8-32. Ground screws are 10-32. Also, you could buy a ceiling hugger style fan instead of a stem mounted one, and fasten it directly to the ceiling with toggle bolts or similar fasteners, instead of just the box, since that box is most likely not rated for a fan. Good luck and stay . Noting that the junction box is old and damaged, I thought it would be best to just replace the junction box entirely, using an “old work” junction box. So working the existing junction box, which seems to be made up of particle board, I was able to remove two screws that were bracketed (see the blue arrows) that I thought were holding the .
That box is a type of plastic called Bakelite. It's tough, but brittle. If you're careful, you can break the box apart without damaging the ceiling. If you have a hole saw, you can probably drill out around the rivet heads you see in the back of the box and it will come right out. Then you can replace it with a new "old work" box.The outlet for my range hood was misplaced. It needs to be 4 inches to the side. I can make the junction and move the wiring to the new location but I really don't want to have the empty plate exposed. The wire is not long enough to reach the required location, so I will make a junction in the existing box, and add a new box at the correct .
If the box was installed recently in accordance with National Electrical Code (NEC), the box should be labeled if it's rated to support a ceiling fan. NEC 2008 314.27 Outlet Boxes. (D) Boxes at Ceiling-Suspended (Paddle) Fan Outlets. This means somehow mounting the ceiling fan junction box in the center of the beam and attaching the light to it. Problem is -- since the junction box will be face-mounted to the bottom of the beam, the light, and its shroud will be offset . Plus fixtures (e.g., lights, ceiling fans) often need to be removed to access ceiling junction boxes. But the key is that normal access - e.g., replace a receptacle or switch, patch in a new cable to a junction box to power something else, etc. - . The junction boxes that contain splices and are not accessible from the ceiling below should be exposed - not covered by insulation. If enough slack is present in the cables between the boxes, you may be able to raise them up a bit and mount them on trusses or other exposed framing members without having to run new wire.
Junction boxes, with blank covers are allowed above a suspended ceiling as it is not considered a closed space. The wires that are loose and wirenuted need to be put in a j-box. Also, clamps need to be used at each wire going into a j-box. Then you'll have a 4" round hole in the ceiling. Then you can install an "old work" box to the joist or whatever attachment point is available, or simply to the drywall itself using certain types of "old work" boxes. Use a lightweight, low profile fixture that you're not likely to . Device (switch) boxes are 6-32. Junction boxes like that one are 8-32. Ground screws are 10-32. Also, you could buy a ceiling hugger style fan instead of a stem mounted one, and fasten it directly to the ceiling with toggle bolts or similar fasteners, instead of just the box, since that box is most likely not rated for a fan. Good luck and stay . Noting that the junction box is old and damaged, I thought it would be best to just replace the junction box entirely, using an “old work” junction box. So working the existing junction box, which seems to be made up of particle board, I was able to remove two screws that were bracketed (see the blue arrows) that I thought were holding the .
That box is a type of plastic called Bakelite. It's tough, but brittle. If you're careful, you can break the box apart without damaging the ceiling. If you have a hole saw, you can probably drill out around the rivet heads you see in the back of the box and it will come right out. Then you can replace it with a new "old work" box.The outlet for my range hood was misplaced. It needs to be 4 inches to the side. I can make the junction and move the wiring to the new location but I really don't want to have the empty plate exposed. The wire is not long enough to reach the required location, so I will make a junction in the existing box, and add a new box at the correct . If the box was installed recently in accordance with National Electrical Code (NEC), the box should be labeled if it's rated to support a ceiling fan. NEC 2008 314.27 Outlet Boxes. (D) Boxes at Ceiling-Suspended (Paddle) Fan Outlets. This means somehow mounting the ceiling fan junction box in the center of the beam and attaching the light to it. Problem is -- since the junction box will be face-mounted to the bottom of the beam, the light, and its shroud will be offset .
Plus fixtures (e.g., lights, ceiling fans) often need to be removed to access ceiling junction boxes. But the key is that normal access - e.g., replace a receptacle or switch, patch in a new cable to a junction box to power something else, etc. - .
junction box wall mounted
installing junction box in ceiling
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Plastic have the built-in nail vs needing screws to secure a metal box or stapling the box to a stud. Answers based on the National Electrical Code. Local amendments may apply.Use a metal electrical box when metal-sheathed cable (also called armored BX cable) or metal conduit runs in or out of the box. Metal cable and conduit depend on the contact from its metal sheathing to the metal box to complete grounding.
electrical junction box in ceiling|electrical junction box requirements