ok to use plastic wire clamp on metal juntion box Metal sheathing difficult to pierce: Vinyl sheathing needs protection: Grounding: . In this post, we’ll discuss the various types of electrical boxes and their uses so you can make an informed decision about your next electrical project. 1. Round Pan Electrical Box. Round pan electrical boxes are circular and are commonly used for ceiling fixtures such as chandeliers, pendant lights, and smoke detectors.
0 · plastic electrical box replacement
1 · plastic box vs metal junction box
2 · metal romex plastic clamps
3 · metal plastic box clamps
4 · metal electrical box troubleshooting
5 · metal electrical box attachment
6 · metal box electrical wire
7 · electrical cable for plastic box
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Metal junction boxes always need to be grounded, whether you're using NM (non-metallic) plastic-sheathed cable or metallic cable. Metallic cable is self-grounding, as long as the cable is properly secured to the box.NM wire: NM (non-metallic) wire is electrical wire with an outermost sheathing made .
Metal sheathing difficult to pierce: Vinyl sheathing needs protection: Grounding: .A locknut-type clamp is the classic metal cable clamp with a short, threaded . I found the below plastic wire clamp in a metal ceiling fan pancake box. Is that allowed or should it be a metal clamp? I ask because it looks a lot like the built-in clamps in . The electrician used two-screw clamps in plastic boxes to make the splices from THWN in underground PVC to Romex for the indoor sections. No bonding bushings anywhere. .
Plastic boxes reduce the need for extra parts like ground screws and cable clamps and do not require grounding saving time. Set them the correct depth and go. Metal boxes need a proper depth plaster ring and make it . Some installers routinely completely knock out the rectangular flap to create an open rectangle for passage of NM cable into a plastic box. I was .
Carefully strip the insulation from the wires and connect them inside the junction box using wire connectors. Follow the manufacturer’s instructions for proper installation. Pay attention to color coding and ensure a secure . Hi, I am replacing an old drop-in, hard-wired (Frigidaire) range with a Kenmore range that has a cord and 3-pronged plug. My question is would it be better/easier/safer to remove the cord & plug from the Kenmore and hard-wire it, OR to create/install a 3-pronged outlet receptacle where there is currently only a junction box and the 4 wires banded together in a . Electrical - AC & DC - Plastic wire clamp in a metal box? - I found the below plastic wire clamp in a metal ceiling fan pancake box. Is that allowed or should it be a metal clamp? I ask because it looks a lot like the built-in clamps in plastic boxes which I know require the wire to be stapled close to the box. This just seems like an unnecessary step and extra exposed junction cover here. I only have the one 14/3 nm switch cable which I believe is allowed in conduit, it’s multiple that get you in trouble. @zanydroid, it is a metallic box and I see your point about the isolated metal clamp in the female-female solution. I guess I could use all metal .
I need to install a junction box for 240V going to two separate Thermostats for baseboard heaters (one 750W and another 1100W). Should Does NEC require that I use plastic or metal boxes for the thermostats and junction box? I .Doesn't matter plastic or metal just use the appropriately sized box for the number of wires. Also use what makes the most sense. If I'm doing a simple junction I use plastic. When I have a lot of wires I use metal, easier to use. Make sure you put a cover on the box when your done.
I reside in CT - Anyone know if I can run my indoor Romex wire through house wall into a metal junction box? From there I'll run Schedule 40 with THHN wire out to endpoints. Core question here is - Can I run Romex through house wall into waterproof junction box mounted on outside wall and still fall within code? Thanks in advance. This video goes over a trick I learned on installing (tightening or loosening) the nut on electrical wire/conduit clamps used where wire or conduit enters me. I've come across this using "old-work" boxes, but all plastic boxes for switches and outlets are basically the same: These boxes have 4 knock outs per gang and they open at an angle. They seem to be made to allow the wire to enter one way and prevent it from slipping out like a basic clamp.
The issue is that I have no idea how to go about securing romex for a plastic box inside a finished wall where you can't just staple the romex to a nearby stud. For metal boxes, it's pretty easy, you just use a cable clamp in the knockout. but I can't use a .
If you drill a hole, there's no clamp to hold the wire in place. You could drill a big hole and add a metal clamp as used on metal boxes, but then the clamp isn't grounded. You could come up with creative non metallic clamps, or ways of grounding a metal one, but anything you invent yourself isn't code legal and is more work than a new box by . The person im working with would like to drill out a hole for the entry of bx cable in a plastic box. There is a pre made punchout we could use already there in the back of the box but they would perfer to come in from the side of the box to take up less room in the closet. {were running this in the back of a closet} Edit 1 - Replaced plastic box. I took the advice here and replaced the plastic 3-gang box with a 4"x4" metal box, using appropriate through-the-box cable clamps. I will post a picture of the final product. Mar 14. Here's the promised picture, before the cover went on.
Cable clamp inside junction box . . there definitely needs to be a clamp. But some plastic boxes are designed to secure the cable without needing a clamp. Reply reply WombatWithFedora • Assuming it's a metal box and romex cable, just use this. Slip it over the wire and shove it into the knockout. It will protect the wire from sharp edges . Also the switch mounting strip (yoke) and the box if metal are to be bonded to said ground wires, using pigtails (jumper wires wholly within the box) if needed. Screws holding cable clamps and screws relying on the wood behind to dig . I know guys who only use metal with NM, but that's resi and I don't understand them. In commercial work I would only use metal boxes unless it were clearly a building where plastic were allowed and I was retrofitting something (you can't get old work metal boxes to fit into the hole left by a plastic box).
Plastic electrical boxes that hold 1 electrical receptacle have rectangular "knock-outs" in them, so the circular types of wire clamps used to clamp wires into metal boxes can't be used. Are the knock-outs also supposed to work as clamps? Or are there special clamps that work with plastic boxes? One Youtube video I saw says to "staple the wire within 8 inches of . Source: Jatumeth Susukh/ Shutterstock.com Metal vs. Plastic Junction Boxes There are two types of junction boxes in common use today: metal junction boxes and plastic junction boxes.Both have their own .
You reach the maximum number of conductors in the box well before you run out of knock out space. I double up sometimes for 3 cable boxes because it's easier to lay the wires neatly in the box if they are all going the same direction. The requirement for means to attach a bonding jumper accommodates devices or equipment attached to the box. For the purposes of this exception, the term metal-armored cable includes cables with a metal covering such as mineral-insulated, metal-sheathed cable (Type MI), metal-clad cable (Type MC), and armored cable (Type AC). I don't have access to the back side of the box, because the ceiling is finished (metal lath and plaster). I'm thinking I could remove this a few different ways: twist the wires together, wire nut, and leave in the box; cut the exposed copper, and electrical tape the ends; cut the wires back to the cable clamps I am afraid you do need a clamp. There are clamps for smaller romex that install from inside the box, but I don't believe they are made for larger sizes like you need. and @ThreePhaseEel indicated in the comments there is a larger one available for 6/3 Romex Arlington NM95X (see cables allowed below - your 6/3 is in there). With these fittings, you fish .
Is it NEC compliant to wrap the ground wire from a 14-2 around the sheathing and then clamp it using the NM clamp in a metal junction box? I live in a house built in the 60s and I see that a lot but I don't know if that's sufficient for grounding. There are two use cases in particular that I'm curious about for this style of grounding. That appears to be a plastic box with a metal bracket side clamp . Can junction boxes with side tabs/brackets be used in conjunction with metal studs, or must the junction boxes be metal as well? electrical; studs; . There are NEC rules restricting the use of armored cable with plastic boxes, but if you are using nonmetallic cable (type NM .
I have a grey plastic surface mounted box with the 1/2" round knock outs for a NM clamp. I plan on mounting the box inside the cabinet and attach it to the back of the cabinet (screw into the wall stud behind). The plan is to make a hole in the back of the cabinet to fish the nomax wire through and into the back of the box using a metal NM .In general, when it comes to junction boxes, a 6-inch or 8-inch metal box should be used for interior walls and ceilings, a 4-inch metal box should be used for exterior walls as long as it is supported properly when housing heavier devices such as switches and outlets, and a 4-inch by 4-inch metal box should be used in open ceilings for .
You can drop the wire or use a fish stick to pull the wire. A new work box would probably be your best bet if you don't want to cut a sheet of drywall out. If you get a metal box, ensure you have the proper 2 hole strap to secure it. I don't use nm cable much, but it's a 1" or 3/4 knockout. I .
Insert this into your box and fasten with a 1" lock nut. But wait, there is a catch. You are using 1" PVC conduit. Now you need holes suitable for 1". You may have to get large metal boxes [4 11/16"] which have punch-outs for 1". Or you can use normal metal boxes but will have to enlarge the 3/4" hole for the 1" fitting. This is an excuse to .
plastic electrical box replacement
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ok to use plastic wire clamp on metal juntion box|plastic electrical box replacement