Underground electric under new pad

[Walkers]

I am adding a bedroom onto my house, 20x24. It is exactly over the top of the PVC conduit I ran out to my shop, 18" deep. The sides of my monopour slab are supposed to be 18" deep as well. Is it against code to leave the conduit in place and pour over the top?

 

[wyliesdiesels]

Short answer is no

 

[FredWanaker]

I'd put a larger piece of conduit or ABS cut in half lengthwise over the conduit where the 18" sections will be - just to keep any future chaffing from happening if things settle a little.

 

[PCustoms]

Short answer is no

Why?

I thought shallow concrete was required to be capped in concrete, so why would 18" deep be bad, is it the load bearing aspect?

 

[Walkers]

Short answer is no

Is there a more detailed answer?

 

[Innovate1]

No problem having conduit under the slab. I would be a bit concerned about the sides that would be on or almost on the conduit. I think I would expose the conduit for a few feet and lower it so there was a few inches between the conduit and the concrete. And/or put a few inches of soil in a small area over the conduit and raise the bottom of the concrete in that area slightly. Don't want the slab settling and mashing the conduit.

 

[mike93lx]

Why?

I thought shallow concrete was required to be capped in concrete, so why would 18" deep be bad, is it the load bearing aspect?

I read it as not a problem. The question was if it was against code, not if it was OK to do.

 

[PCustoms]

I read it as not a problem. The question was if it was against code, not if it was OK to do.

Yep, I read it backwards.

 

[wyliesdiesels]

Why?

I thought shallow concrete was required to be capped in concrete, so why would 18" deep be bad, is it the load bearing aspect?

The OP asked if it was against code. My answer was in response to that.

 

[PCustoms]

The OP asked if it was against code. My answer was in response to that.

Yes, as I stated above, I read the OP and your response opposite.

Sorry.

Carry on.

 

[Walkers]

The OP asked if it was against code. My answer was in response to that.

What is the code that it is against? I ask because I would like to find a way not to have to relocated my shop power. For instance, if I lowered it, or sleeved it would it then be compliant. This project is getting inspected for everything, so it's not like I can just do whatever I please. I have asked several local guys and I get yes/no answers from them all, but no real firm answer on what to do to make it code compliant.

thanks,

 

[sparky 1971]

What is the code that it is against? I ask because I would like to find a way not to have to relocated my shop power. For instance, if I lowered it, or sleeved it would it then be compliant. This project is getting inspected for everything, so it's not like I can just do whatever I please. I have asked several local guys and I get yes/no answers from them all, but no real firm answer on what to do to make it code compliant.

thanks,

It's not against any code. Your question was if it was against code. The answer is no. But, to be totally sure, you need to ask the inspector because there may be an amendment.

 

[Walkers]

It's not against any code. Your question was if it was against code. The answer is no. But, to be totally sure, you need to ask the inspector because there may be an amendment.

Ah, got it, thanks.

 

[nadogail]

When the foundation pit for my elevator was dug, a tube was found to be running through the hole. We could no determine where the tube started or ended, it looked like a 4" pipe and was not a drain from this house or my neighbor.

The inspector told us to wrap it in plastic and pour the needed concrete.

 

[Norcal]

If they were service entrance conductors it would be a big problem because then they would have to be moved, they are not so all is well.