It is mechanically possible to install a standard new-work box in an existing wall by: Cutting hole in drywall adjacent to a stud. Placing plastic box in the hole up against the stud. Screwing through the plastic into the stud.
Can you surface mount a plastic electrical box?
These boxes can be plastic or metal. Because they’re exposed, they need to be mounted perfectly plumb and level. They also require conduit to protect the wires.
Can I use plastic electrical boxes on metal studs?
1 Answer. You usually see wood framing with plastic electrical boxes and nonmetallic cable in residential construction, and metal framing with metal boxes in commercial construction. However there’s nothing that specifically prohibits the combination of metal framing and plastic boxes.
Do plastic electrical boxes need clamps?
Single plastic boxes do not require internal cable clamps, but the cable must be stapled within 8 in. of the box. Larger plastic boxes are required to have built-in cable clamps and the cable must be stapled within 12 in. of the box.
Do plastic electrical boxes need to be grounded?
Plastic electrical boxes have their pluses and minuses. … Because they are plastic, there is no need to attach a ground wire to it. Since it is made of a non-conductive material, switches and outlets cannot short out if they touch the side of the box.
How do you mount an electrical box between studs?
The simplest, quickest, and best way to do this is to cut wood to fit between the studs, and then mount your electrical boxes to that wood. Circular light boxes are used for sconces. Measure the distance between your wall studs, cut a 2″x4″ to size, and nail it in place.
What is the difference between metal and plastic electrical boxes?
In use for far longer than PVC versions, metal electrical boxes are super-strong, fireproof, and incapable of melting. They offer the greatest level of security for electrical wiring applications. It’s also virtually impossible to crush or bend a metal junction box!
Are plastic electrical boxes fire rated?
plastic boxes, also on single gang box? If you are discussing fire classification, most of Carlon’s blue nonmetallic outlet boxes, with the exception of old work boxes, are fire classified for two-hour fire rated walls or less.
Do metal receptacle boxes need to be grounded?
The overriding concern is that the application should be grounded. Metal-sheathed wiring depends on bonding with the metal electrical box for grounding. Using metal-sheathed wiring with plastic electrical boxes, without taking other grounding measures, severs that ground and is highly dangerous.
How do you use a plastic switch box?
Installation of Plastic Junction Boxes
You simply hold the box against the wood framing and drive the two nails that come pre-attached to the box. They even have markings on the side for setting the proper depth so that the box is flush with the face of the wall when the drywall goes up.