Raceway for Electic in concrete foundation

[ckrzysko]

Hello all -I would like to conceal the electric coming into the garage. Can I use 1-1/4 in. Rigid 90-Degree Steel Conduit Elbow (heavy wall conduit) and stub above the foundation wall, so the electric service is coming up the 2x6 wall? Naturally I will have to position it so the service comes up through the concrete inside the wall and where the panels is going to be. Also the service coming through the wall is about 26 inches below grade.

 

[Aceman]

It is very common to install conduit stubups into concrete. Is there a reason you think you need a steel 90 rather than a pvc 90?

 

[joe49]

I did it 32 years ago still there.

 

[ckrzysko]

It is very common to install conduit stubups into concrete. Is there a reason you think you need a steel 90 rather than a pvc 90?

For a few bucks more, I would rather overkill and make sure it pass inspection. From the outside I would use schedule 80 to the heavy wall and then connect to the poly that is buried.

 

[ckrzysko]

I did it 32 years ago still there.

Are you talking about steel or PVC?

 

[Aceman]

For a few bucks more, I would rather overkill and make sure it pass inspection. From the outside I would use schedule 80 to the heavy wall and then connect to the poly that is buried.

I can assure you, pvc conduit will pass inspection. There is no reason to use steel just because it's in concrete.

Second, what kind of conduit are you using that you're calling poly?

 

[Elginz]

Use PVC, it is non-conductive, will never rust, easier to work with (fittings, smooth inside for wire pulling), fairly cheap, on and on.

Just my opinion.

 

[ckrzysko]

I can assure you, pvc conduit will pass inspection. There is no reason to use steel just because it's in concrete.

Second, what kind of conduit are you using that you're calling poly?

High Density Polyethylene (HDPE) Conduit

 

[ckrzysko]

is it best to use schedule 40 or 80 inside the concrete wall?

 

[Aceman]

High Density Polyethylene (HDPE) Conduit

Verify it is UL listed, a lot of it is not.

is it best to use schedule 40 or 80 inside the concrete wall?

Sch. 40 is fine.

 

[ckrzysko]

Thanks everyone

 

[zmaxmotorsports]

Depending on where youre at and your weather I'd personally bring the pipe up out of the ground and install an expansion joint before lb'ING it into the building/back of panel,unless you're bringing it in below the frost line.
I've seen plenty of pipes snapped off from ground heaving while building didn't move at same rate.