do i need to use romex clips with metal boxes It is a fast and easy way to pull NM-cables into a box, but not code approved. The photo below shows NM-cables entering the top of a box through NM-connectors (except that one is .
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0 · romex grommet clamp
1 · metal box vs romex
2 · metal box cable clamp
3 · how to secure metal box
4 · grommet for romex box
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The correct thing to use is not a grommet, but a NM clamp, as the latter grabs the cable's jacket and strain-relieves it to the box. They are available in a few different types (some are metal, others are plastic), and install into a . how does that clip work, dont you need a green wire tied to it? Click to expand. you place it over the grounding conductor and clip it to the box. it holds the conductor firmly against the box. Is there a place in the code that says you have to secure NMB cable to a metal box using a "romex" type of connector. From what I can remember as long as the wire is . Connecting the egc of the romex to the receptacle or switch green grounding screw would be acceptable in all situations but you must always include a connection to the .
You might be able to enlarge the hole with tin snips and then fit in a two-part clamp, but I think you would find it easier to disconnect the Romex inside the box, pull it out, enlarge the hole enough to fit a cable clamp, then re-install .
It is a fast and easy way to pull NM-cables into a box, but not code approved. The photo below shows NM-cables entering the top of a box through NM-connectors (except that one is .
When using NM through metal studs with non-metalic boxes, is there a requirement for bonding the metal studs? The closest I can get is 250.104(C), but it's not clear .Cables do need to be secured, but as you surmise, staples and other nailed retainers won't work. There is a discussion of how to attach cables to steel studs in a brochure put out by the Steel Framing Alliance. Included in that broader .
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 . Nonmetallic, or NM, cable (commonly known by the brand name Romex) must be secured to electrical boxes at the point where the cable enters the box. This code requirement is an important safety feature that protects the wiring . The correct thing to use is not a grommet, but a NM clamp, as the latter grabs the cable's jacket and strain-relieves it to the box. They are available in a few different types (some are metal, others are plastic), and install into a standard 1/2" knockout, either using a locknut (for metal and some plastic types), or simply by snapping into .
how does that clip work, dont you need a green wire tied to it? Click to expand. you place it over the grounding conductor and clip it to the box. it holds the conductor firmly against the box. Is there a place in the code that says you have to secure NMB cable to a metal box using a "romex" type of connector. From what I can remember as long as the wire is stapled within 8" of the box you did not need a keeper/secured to the box. Connecting the egc of the romex to the receptacle or switch green grounding screw would be acceptable in all situations but you must always include a connection to the metal box. The NEC states the minimum safety standards for electrical installations. You might be able to enlarge the hole with tin snips and then fit in a two-part clamp, but I think you would find it easier to disconnect the Romex inside the box, pull it out, enlarge the hole enough to fit a cable clamp, then re-install the Romex.
It is a fast and easy way to pull NM-cables into a box, but not code approved. The photo below shows NM-cables entering the top of a box through NM-connectors (except that one is missing, with a cable poking through it, and will need repair). When using NM through metal studs with non-metalic boxes, is there a requirement for bonding the metal studs? The closest I can get is 250.104(C), but it's not clear to me that these studs are what the code would consider "structural steel", and .
Cables do need to be secured, but as you surmise, staples and other nailed retainers won't work. There is a discussion of how to attach cables to steel studs in a brochure put out by the Steel Framing Alliance. Included in that broader pamphlet is this advice: NM wire is not stapled to a CFS stud because the staples will not penetrate the steel.
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.
Nonmetallic, or NM, cable (commonly known by the brand name Romex) must be secured to electrical boxes at the point where the cable enters the box. This code requirement is an important safety feature that protects the wiring . The correct thing to use is not a grommet, but a NM clamp, as the latter grabs the cable's jacket and strain-relieves it to the box. They are available in a few different types (some are metal, others are plastic), and install into a standard 1/2" knockout, either using a locknut (for metal and some plastic types), or simply by snapping into .
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how does that clip work, dont you need a green wire tied to it? Click to expand. you place it over the grounding conductor and clip it to the box. it holds the conductor firmly against the box. Is there a place in the code that says you have to secure NMB cable to a metal box using a "romex" type of connector. From what I can remember as long as the wire is stapled within 8" of the box you did not need a keeper/secured to the box.
Connecting the egc of the romex to the receptacle or switch green grounding screw would be acceptable in all situations but you must always include a connection to the metal box. The NEC states the minimum safety standards for electrical installations. You might be able to enlarge the hole with tin snips and then fit in a two-part clamp, but I think you would find it easier to disconnect the Romex inside the box, pull it out, enlarge the hole enough to fit a cable clamp, then re-install the Romex.It is a fast and easy way to pull NM-cables into a box, but not code approved. The photo below shows NM-cables entering the top of a box through NM-connectors (except that one is missing, with a cable poking through it, and will need repair). When using NM through metal studs with non-metalic boxes, is there a requirement for bonding the metal studs? The closest I can get is 250.104(C), but it's not clear to me that these studs are what the code would consider "structural steel", and .
Cables do need to be secured, but as you surmise, staples and other nailed retainers won't work. There is a discussion of how to attach cables to steel studs in a brochure put out by the Steel Framing Alliance. Included in that broader pamphlet is this advice: NM wire is not stapled to a CFS stud because the staples will not penetrate the steel.
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do i need to use romex clips with metal boxes|metal box cable clamp