metal or plastic boxes with romex The NEC permits use of plastic boxes with non-metallic cable only. This includes Romex or NM wiring. You should not use metal-sheathed or "BX" wiring with plastic electrical boxes. The . Browse the various equipment that we use to fabricate precision metal products! .
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In this video I show how to set up and tig weld thin metal. There are a lot of different steps to take and I try to make it as easy as possible. From how to grind the tungsten, prepare the.
Strong, fireproof, and incapable of melting, metal boxes offer the greatest level of security for all electrical wiring applications. Compared to plastic boxes, metal electrical boxes .The wires are copper and are individually coated in plastic. Romex: Romex is the .BX cable is a type of metal-clad, armored cable. Learn the basics of armored BX .
Nonmetallic, or NM, cable (commonly known by the brand name Romex) must .The NEC permits use of plastic boxes with non-metallic cable only. This includes Romex or NM wiring. You should not use metal-sheathed or "BX" wiring with plastic electrical boxes. The . I have done a little wiring always using romex and plastic or fiberglass boxes. If I use metal boxes with romex and romex connectors do I have to ground the metal boxes to the .
Metal boxes are better when you need the strength and volume to make up a ton of wires. The blank covers fit better than a plastic box. The holes are easily used by adding a romex connector of the right size. I use plastic . If the job was specified with metal boxes, and you used plastic boxes, the customer is within their rights to receive a credit for this change. . If your question was asking if there was an application where romex is allowed by code, but plastic boxes aren't I believe the answer is no. S. Strathead Senior Member. Location Ocala, Florida, USA .
Previous dishwasher had a small metal junction box. New dishwasher has the pictured plastic junction box. I can't replace this armored cable without ripping out walls. The dishwasher has a proprietary plug that . Metal boxes, especially with romex, are a PITA: more sharp edges, more time to make up, clamps in box etc. The contractor wanted me to talk directly to the H.O. about it so I thought I would see what possible reasons you guys come up with to use and not to use them. . strategic use of metal boxes strategic use of metal boxes Plastic is by far .In this case, the Romex grounding wire was screwed directly to the box - is that safe grounding? I have also seen a metal BX tubing pulled into a plastic box in the "crawlspace" (It's more for a crouching space, 5ft tall and half finished) and the wires leaving the plastic box are Romex and the grounding wires in the Romex are pulled through .
plastic electrical boxes
That appears to be a plastic box with a metal bracket side clamp . In addition, there's . (type NM B, such as Romex) and following the NEC rules for running NM in metal framing, that could be compliant. Like other electrical equipment / materials, the box has to be used according to its listing - that is, you have to follow the manufacturer's .That’s a good size, you don’t want any smaller, believe me...but I would suggest using a plastic nail on box. The metal one you showed me requires connectors and additional grounding. A plastic box allows you to just shove the wire into the slots and make up the wires together without having to ground the box.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 metal box since I don't have access to the studs. Surely I'm not the first person on .Plastic boxes have the connectors that hold the cables built into the box. Metal boxes have little metal covers over holes that you have to break out to install a connector to the box. Plastic new-construction boxes have nails already installed on the box from factory, you just have to hold the box and hammer the nails into the stud. Metal .
I’ve never worked with the blue plastic receptacle boxes before. I’ve always used metal in the past. I’m in a situation where I need to wire the outlets on a circuit in an addition for a family member. They have nailed the blue boxes to the studs, and run the romex to all these boxes. They punched the holes out of the blue boxes.Metal electrical boxes are primarily used with metal-sheathed or "BX" wiring. However, they can also be used with Romex or NM wiring if desired. Most new residential electrical systems use Romex and plastic boxes. Most do-it-yourselfers will find this combination easier to work with as well. Plastic boxes are lighter, some already have nails .
One thing that I noticed is glaringly wrong is that there are about a dozen junction boxes throughout the basement where the romex is fed in but no clamps are used in the knockouts. The romex is stapled close to the box so I don't think it will be moving around but I still don't like the casing sitting against the rough edge of the knockouts.
Romex must be secured at no more than _____ inches from all electrical boxes except a nonmetallic single-gang box. 12" Romex installed in either a metal or plastic two-gang device box with interior cable clamps, must be secured no more than _____ from the device box. 5. The inner edge of any bend in nonmetallic sheathed cable cannot be less . 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 . To ground the box, get a metal box. Those come in metal too. I think aluminum, but I am not sure what the common metal is. That box you pictured is not conductive. . Romex into plastic boxes. Nukedaddy; Nov 29, 2021; Electrical Forum discussion & Blog; Replies 4 Views 4K. Mar 9, 2022. Norcal01. Share: Facebook Twitter Reddit Pinterest Tumblr .
Plastic doesn't generally need a knockout, but a larger wire (in the US, 240v wire is 3-line cable, which means its larger) will have a harder time going into the box past the plastic barbs that are designed to hold the wire in place. You can buy plastic boxes without barbs, but you'll have to secure the wire within 8" or so of the box.It's also more expensive and is nasty to work with because of the oil coating. Also you'll need a metal cut in box for mc cable, which is again much more pita to install if you don't have any experience with it. If you have metal studs you either have to use a plastic bushing where you drill thru or just use mc cable
The local building department has just started to allow romex in their village and we are changing from pipe to romex. The village allows plastic boxes but for some reason (I'm not sure what it is) the builder wants me to use the same metal boxes that we use when piping these homes. . I believe they are worried about the integrity/long term . The problem is that you should use a connector in the box. A button connector won't work since the 1/2" KO in the box is threaded. A typical metal 2-screw romex squeeze connector works, but it requires a 1-1/2" hole in the brick to accommodate it's size.
plastic electrical box replacement
My question is, should I use a metal junction box or a plastic one? Other than being stronger, is there any benefit to a metal box? I vaguely remember from somewhere than a metal box helps shield EMI/RFI. Is that correct? . I have used romex and plastic boxes with great success. tony22 May 12, 2024, 9:18pm 3. Plastic box. . The Carlon new work single gang blue plastic box I have in front of me (possibly 20 years old but don't actually know) has the flaps symmetrically and flimsily attached. . Can you mount a plastic junction box to metal studs? 2. Plastic electrical cut-in boxes with 3/8s tabs. 3. Will wax or gel lubricant help in pulling old Romex into box? 0.Metal boxes intrinsically bond the screws so they aren't an unbonded path to substrate. They also intrinsically bond switches, which in Canada means the switch doesn't need to be wire-bonded (not acceptable for receptacles though) . If we're dealing with Romex, it's going to be plastic for all the switches and outlets. They're deep, they're .Metal boxes are compatible with metal clad wires. Metal boxes have better shallow options and can easily be combined to make multigang options not available in plastic. Plastic boxes are cheaper and faster to work with but not so much so that it's worth an extra trip to a supply house. Commercial work there is no choice. We use metal boxes.
Normally metal boxes are used with conduit. But you do not know how to bend conduit. So, you will use metal boxes, plastic snap in connectors and NM (Romex) cable or MC cable. (MC Cable connectors required). Have you considered MC cable? It is a cable with a metal outer covering and is available in the sizes you need and in your local box store. And where I'm trying to use metal clamps with romex in plastic boxes (per the photo), I will switch to plastic clamps . Thanks all for your help and sorry for the confusion. Anyone know a good place to buy deep new work 1-gang metal boxes with stud brackets? HD and Lowes is a crapshoot, that's why I ended up with plastic boxes in the first place.The Romex ® Brand SmartBox™ Original Device Boxes excel in versatility, especially in new work locations where hammer swinging is limited or where final wall surfaces are uncertain, such as kitchens and baths. Their superiority is evident in old or retrofit work scenarios because they are consistently mounted to a stud. Elevate your electrical projects with high-quality solutions .
To correctly ground the BX cable or Romex you'd want to replace the non metal box with a metal one. The BX cable can be grounded to the metal box with a connector similar to the one shown below. . Maybe but with 1950s cloth MC subsequently poorly hacked to plastic boxes I'd consider taking that money and putting it in the full rewiring piggy . In all honesty, I prefer Slater or Arlington for plastic boxes, but we don't usually use plastic old work boxes. For the most part we use metal switch boxes with box holders or when doing plaster, #4 wood screws. Our supply house sells Steel City, so mostly we use LX-WOWs, CWN-25s, and CXWOWs, all with romex clips.
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metal or plastic boxes with romex|electrical box vs metal box