60 CCC's in 1 EMT!

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markebenson

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There is one 6 ft 2" pipe gong to this box period! The panel is embedded in poured block and the box on the other side of the block wall at ceiling height. There is a small channel within the block where the 2" is located. So far I have been able to pull 3 pcs of 3/4 mc to the box. No more room. All the conductors have been removed from the 2" and i am ready to pull after calcs.

Panel 40 spc, old.
Service 3ph, 208

Summary
I now have (1) 2" emt and (3) 3/4 mc to pull inside.

I am working on my calcs now.

If the adjustment does not work for the calcs is it a thing to pull more mc through the existing 2" ?

Your laughter is welcome!
 

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Does this help

(4) Adjustment factors shall not apply to Type AC cable or to
Type MC cable under the following conditions:
a. The cables do not have an overall outer jacket.
b. Each cable has not more than three current-carrying
conductors.
c. The conductors are 12 AWG copper.
d. Not more than 20 current-carrying conductors are installed
without maintaining spacing, are stacked, or are supported
on “bridle rings.”
Exception to (4): If cables meeting the requirements in
310.15(B)(3)(4)a through c with more than 20 current-carrying
conductors are installed longer than 600 mm (24 in.) without maintaining
spacing, are stacked, or are supported on bridle rings, a
60 percent adjustment factor shall be applied.
Click to expand...
 
That’s a rats nest! I would come to that job site with a stick of dynamite and start over


“ shoot low boys their riding shetland ponies”
 
Nothing makes sense. The title says 60 current carrying conductor in 1"emt then he talks of 2' Emt...

Not sure what he has going there. He said recessed in the concrete but the picture is anything but..
 
Dennis Alwon said:
Nothing makes sense. The title says 60 current carrying conductor in 1"emt then he talks of 2' Emt...

Not sure what he has going there. He said recessed in the concrete but the picture is anything but..
Click to expand...
Actually is says 1 EMT not 1". I'm still confused about the MC.
 
Maybe the OP should start over with a new thread, even if he tries to explain it it's just going to confuse things more.

Roger
 
The exisiting emt is 2".
This is a before picture. I pulled everything out.
Then i ran 3 flexible 3/4 cables along side the 2",
 
markebenson said:
In laymens terms they are. I have verified it was Bx, old stuff laying around.
Click to expand...
If you go to a supply house and order 3/4" FMC (flexible metallic conduit) you will get 3/4 flex with no wires. It's commonly called "Greenfield". If you go in and order 3/4 MC/AC/BX they will look at you and just stare. Now if you are talking about something like 8-3 MC/AC/BX or larger, the OD might be 3/4" but it is not called FMC. Two totally different animals.
 
Little Bill said:
If you go to a supply house and order 3/4" FMC (flexible metallic conduit) you will get 3/4 flex with no wires. It's commonly called "Greenfield". If you go in and order 3/4 MC/AC/BX they will look at you and just stare. Now if you are talking about something like 8-3 MC/AC/BX or larger, the OD might be 3/4" but it is not called FMC. Two totally different animals.
Click to expand...
Thank you . I never have a need to use this stuff. Mc serves all my needs but this was old used material on the jobsite it was Bx. Now i have the 3 3/4s and a 2" running to the box. Is there any reason I should remove the bx? I had almost 60 ccc's in the 2" pipe. Goal to split it up.
 
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