Transition from in wall electrical wiring to EMT

[branimal]

I’m running a circuit from a standard 1900 box behind drywall and then across an area of exposed brick and then back to 1900 box behind drywall.

I’m going to use 1/2” EMT on the exposed brick wall.

How do you make that transition? Can I buy a drywall faceplate that has both an outlet cutout and a 1/2” knockout for EMT?

Or is there a better way to make that transition.







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[exranger06]

Use box extensions:

 

[rust in the eye]

https://hubbellcdn.com/ohwassets/HCI/RACO/Catalog/steelboxescoversaccessories.pdf

 

[alfredeneuman]

This to bring the box out flush with the drywall
https://images.homedepot-static.com...a72afa5d8219/svn/raco-covers-8769-64_1000.jpg

And this mounted on the surface of the drywall.
http://www.elliottelectric.com/Media/4SWEASPL-TAB-2

Both are available at HD

 

[ard]

Can't go up to the ceiling and across? Or under?

 

[Terry D]

It looks like your wall is open. Before you drywall, remove that 1900 box from the stud and just stub the mc cable out. Once it is drywalled, surface mount a 1900 on the wall , bring the cable in the back of the box, and continue with your conduit. This way will eliminate all the extension and mud rings.

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[branimal]

Can't go up to the ceiling and across? Or under?

I want to put an outlet on the exposed brick fireplace for a tv.



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[Terry D]

There many different ways of doing this. Is there a basement under there. Keep the box recessed in the wall, drop down in the basement with cable, stub up a piece of conduit on the brick for a surface mounted box, bring the cable into the conduit with the correct fitting. This will minimize the amount of conduit that you see.

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[LS6 Tommy]

There many different ways of doing this. Is there a basement under there. Keep the box recessed in the wall, drop down in the basement with cable, stub up a piece of conduit on the brick for a surface mounted box, bring the cable into the conduit with the correct fitting. This will minimize the amount of conduit that you see.

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Except that you can't run cable in conduit except for sleeving purposes.

Tommy

 

[Terry D]

Except that you can't run cable in conduit except for sleeving purposes.

Tommy

This would be sleeving purposes. receptacle is only stubbed up a foot or so. Or a box could be installed on the bottom of conduit in basement to switch to a different style conductor. You could even pipe it the whole way and install THWN.

Edit: It didn't really say in the first post about going above a fireplace, just saw that in post #7. So going down in the basement wouldn't be practical. I would try to do it with the least visible conduit

 

[AntonLargiader]

What's in the fireplace? Going to be a gas insert? I'm assuming since you're usually posting about apartments in Brooklyn it's not going to be burning wood, so maybe you can run the wires inside the chimney and do away with the exposed conduit altogether? Recessing an outlet box into a brick wall isn't hard at all.

 

[TRWham]

Except that you can't run cable in conduit except for sleeving purposes.

Tommy

There is no restriction in the code on running cable in conduit.

 

[LS6 Tommy]

This would be sleeving purposes. receptacle is only stubbed up a foot or so.

I'm pretty sure once you put a box on the end it is no longer sleeving, it's conduit. I was taught sleeving is when the tubing doesn't attach to anything on either end and is open. You use it to go through a masonry wall or for protecting the cable in an exposed area where it may be damaged.

I could be wrong.

Tommy

 

[Terry D]

I'm pretty sure once you put a box on the end it is no longer sleeving, it's conduit. I was taught sleeving is when the tubing doesn't attach to anything on either end and is open. You use it to go through a masonry wall or for protecting the cable in an exposed area where it may be damaged.

I could be wrong.

Tommy

I meant you could put a box on the end if switching to a different wiring method. Or if using NM-B, with just a short distance, we put a bang on plastic bushing on the end and run the cable in the short piece of pipe to the device. We do this all the time when installing a laundry receptacle or a electric dryer circuit or a sump pump circuit in an unfinished basement. we stub a piece of conduit down from the joist, mount it on the concrete wall. no fitting on the top, just a plastic bushing. This is how it is done here, and it passes inspection, just short distances, to protect it from physical damage. Not saying it would fly elsewhere

 

[Bert_]

It's not a conduit system if there isn't pipe from box to box. A piece of conduit running several feet above a box is done all the time to protect Romex.

The code does not prohibit Romex in conduit at all. If you have conduit from box to box you can run Romex. Not sure why you would want to but you could. Conduit fill can become an issue if you run Romex in conduit, sleeve or not.

 

[alfredeneuman]

It's not a conduit system if there isn't pipe from box to box. A piece of conduit running several feet above a box is done all the time to protect Romex.

The code does not prohibit Romex in conduit at all. If you have conduit from box to box you can run Romex. Not sure why you would want to but you could. Conduit fill can become an issue if you run Romex in conduit, sleeve or not.

An illustration from Mike Holt showing the rules for sleeves.

 

[ard]

I’m running a circuit from a standard 1900 box behind drywall and then across an area of exposed brick and then back to 1900 box behind drywall.
]

I want to put an outlet on the exposed brick fireplace for a tv.

I was confused by the bolded part...



But yeah, of the box is exposed the EMT needs to as well!

 

[wyliesdiesels]

Except that you can't run cable in conduit except for sleeving purposes.

Tommy

Based on what code?

Hint: you wont find one because its not prohibited to run cable such as NM-b in conduit. This is an old myth that wont go away.

 

[The FIB]

Use box extensions:

Or if the drywall is already up, you can use something like this.

https://www.garvinindustries.com/el...MI4t2_s-e65gIVTP_jBx2pmwuEEAQYASABEgLK0fD_BwE

 

[ard]

Question...could he run flex in the wall, into a connector- which is screwed into the 'back' size of an LB. LB is exposed with EMT running from there. No splices; conductors are continupous from box to box...

Wondering...

 

[Terry D]

Sure, even though I dont do it. I believe you can actually splice in a LB. As long as it has the cubic inch rating on it.

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[ard]

Might be a clean look..or cleaner than a box.