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Quick question about mhf wire entering steel building

Astross89

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Apr 7, 2018
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I'm bringing in my main mhf wire from the outside through 2 inch conduit. Once it enters my steel building. Does it still need to be encased in conduit. It's probably a 2-foot run from the entrance to the Box. Exposed wire would be behind plywood wall. Melbourne FL
 
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wyliesdiesels

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Modesto, CA
I'm bringing in my main mhf wire from the outside through 2 inch conduit. Once it enters my steel building. Does it still need to be encased in conduit. It's probably a 2-foot run from the entrance to the Box. Exposed wire would be behind plywood wall. Melbourne FL

Yes it needs to be in conduit all the way to the panel because it doesnt have an outer sheath
 

aka Larry

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Just did this very thing on Saturday! 2-2-2-4 MHF wire in 2" conduit in a metal building.

20200502_203503_zps7btlwyve.jpg
 
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Astross89

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Thank you all for the response. Last question only because of the photo provided. Does the copper ground wire need to be encased the whole way from the ground rods?
 

mike93lx

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Thank you all for the response. Last question only because of the photo provided. Does the copper ground wire need to be encased the whole way from the ground rods?

AFAIK, no. Mine was recently done and the only conduit used was to get it from the wall to underground. Nothing interior is in conduit, including the bare run to my water line
 

Norcal

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Just did this very thing on Saturday! 2-2-2-4 MHF wire in 2" conduit in a metal building.

20200502_203503_zps7btlwyve.jpg

The PVC adapter needs a bushing, & why not invert the box for bottom feed to avoid excess cable in the panel gutter? Keeps things from being sloppy. There is no right side up/upside down with those panels, just top feed/ bottom feed.
 
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Astross89

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Hopefully everything looks good. Just have the ground wire from the outside left.
 

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