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#77550 06/21/01 08:14 PM
Joined: Jun 2001
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I'm adding a circuit in a metal building. The wall that I am working on is solid block(impossible to fish down the inside of it). I'm going to surface mount box and EMT pipe. ????Can I run MC cable to the pipe and skin it long enuf to get to recept box and run it down pipe. Of course I will use a MC connector with a rigid sleeve and then to EMT connector. THE REASON I WANT TO DO IT THAT WAY IS BECAUSE I CANT PUT A BOX IN THE CEILING BECAUSE THERE IS NO ACCESS-----I'M ONLY LUCKY ENUF TO FISH A WIRE THERE.When I get the wire thru the ceiling I will put it all together and then shove the sleeve and connectors in the ceiling so they cant be seen.Owner wants to see nothing but pipe.

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#77551 06/21/01 09:43 PM
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ampsnvolts;
Welcome!
done it that way myself,just use the proper connectors, that' all. They even make MC or RX connectors to pipe , wiremould..

[Linked Image]

#77552 06/22/01 09:31 PM
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Ampz,

Not sure of this, but I may have heard that havintg this fitting in the ceiling (inaccessible) might technically be a violation.

How about just going through the conduit (no stripping) and go into a connector at the box. (pipe is loose and will slide up and down - just strap it to wall or use Mae Wests)

Bill


Bill
#77553 06/22/01 09:43 PM
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mae wests?

#77554 06/22/01 09:46 PM
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Would the screws of a BX connector (or NM for that matter) on a 4x4 box with a mud ring behind plaster also be a violation under this same argument?

Can a condulet with no splices be buried in the wall or ceiling under the same argument?

Just wondering (really wondering!)

-Virgil


-Virgil
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#77555 06/22/01 10:23 PM
Joined: Oct 2000
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Biil: See Section 300-15(f) Fitting. A fitting identified for the use shall be permitted in lieu of a box or conduit body where accessible after installation and not containing spliced or terminated conductors.


and the NECH Commentary:

300-15(f)
Where a cable system makes a transition to a raceway to provide mechanical protection against damage. Section 300-15(f) permits the use of a fitting instead of a box. For example, where nonmetallic-sheathed cable that is run overhead on floor joists and drops down on a concrete wall to supply a receptacle needs to be protected from physical damage, a short length of raceway is installed to the outlet device box. The cable sheath is removed for the length of the raceway. The cable is then inserted in the raceway and secured by a combination fitting that is fastened to the raceway.

PS: Use of the correct fitting will allow visual inspection of the "redhead"


Joe Tedesco, NEC Consultant
#77556 06/23/01 12:25 AM
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Joe,

Thanks for the reference. I assume there would be no objections to the method I described? That would basically mean that the MC would be connected directly to the box via proper connector and EMT is just used as a sleeve and strapped to the wall?

Sparky,

Mae West: hmmm ... conduit supports? I don't know what to call them or why they're known as "Mae Wests" (except maybe the profile?) [Linked Image]

Joe? .. Anybody else know?

Bill


Bill
#77557 06/23/01 07:41 AM
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Bill:

I always refer to them as "sleeves"


Joe Tedesco, NEC Consultant
#77558 06/23/01 03:26 PM
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hmmm,
what would this 300-15(f) , as well as the definition of 'fitting' pertain to here? I could easily read many parts into this...
[Linked Image]

#77559 06/23/01 05:25 PM
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good idea Bill.


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