SER cable protection.

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nizak

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I have to run a 4/0 SER cable up an exterior garage wall and would like some suggestions on protecting it from exterior siding nails and interior drywall screws.

Also anything the homeowner may fasten to the walls at a later date.

Wall is 2x4 with 1/2" osb sheeting exterior, and 5/8" drywall interior. Cable is approx 1 1/2" diameter.

My thought is to run it up the wall in 2" emt through the top plate then across the unfinished garage attic and into the house.

Would stripping back the sheath inside the emt be a code violation?

The emt would be secured to the disconnect with the appropriate fittings thus being bonded.

Other ideas welcome.
 
Are you just looking for a sleeve to protect the conductors for the distance up the wall? If so you could use EMT as a sleeve and it would not be required to be bonded.
 
infinity said:
Are you just looking for a sleeve to protect the conductors for the distance up the wall? If so you could use EMT as a sleeve and it would not be required to be bonded.
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Is stripping the outer sheath off inside the emt a violation?
 
hbiss said:
Yes. And why would you want to do that anyway?

-Hal
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I thought it may push through a bit easier without the sheath. Maybe not then.

Would the cable need to be secured at the attic end of the emt or would a insulating bushing be sufficient?
 
infinity said:
Are you just looking for a sleeve to protect the conductors for the distance up the wall? If so you could use EMT as a sleeve and it would not be required to be bonded.
Click to expand...
It also need not be terminated to an enclosure at either end.
 
It's not going through an LB.

Just a straight run from the disconnect up the wall and into the attic.
 
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