Direct burial threadless coupling

[Roddick]

Hello
I will do soon a new power for EV car in detached garage.There is already 1" conduit underground.I found that almost at the house about 2 feet from the entry the pipe is blocked with dirt and mud so I cannot change the wires.I will cut pipe at this point and replace it with new piece of rigid pipe.Unfortunately I cannot make a thread so my question is if there is any direct burial threadless coupling I can use.Thank you.

 

[Todd0x1]

Hello
I will do soon a new power for EV car in detached garage.There is already 1" conduit underground.I found that almost at the house about 2 feet from the entry the pipe is blocked with dirt and mud so I cannot change the wires.I will cut pipe at this point and replace it with new piece of rigid pipe.Unfortunately I cannot make a thread so my question is if there is any direct burial threadless coupling I can use.Thank you.

Are you sure the pipe is continuous?

 

[readydave8]

cannot make a thread

Because of space? Or because don't have tool?

 

[electrofelon]

https://www.gordonelectricsupply.com/p/Topaz-256Srt-2In-Conduit-Coupling/6834794?text=256srt

 

[Roddick]

Are you sure the pipe is continuous?

Sure I have a threader.But concrete patio is just 1 inch aside.

 

[Roddick]

Are you sure the pipe is continuous?

Yes.House is 10 years old .

 

[infinity]

Sure I have a threader.But concrete patio is just 1 inch aside.

I don't think that you'll find a fitting listed for direct burial besides a standard RMC coupling that comes on the end of a length of pipe.

 

[electrofelon]

I don't think that you'll find a fitting listed for direct burial besides a standard RMC coupling that comes on the end of a length of pipe.

Does it need to be? 344.6 require fittings to be listed. 344.42 says:

Couplings and Connectors.
(A) Threadless. Threadless couplings and connectors used with conduit shall be made tight. Where buried in masonry or concrete, they shall be the concrete tight type. Where installed in wet locations, they shall comply with 314.15.

I think if the fitting was listed as raintight/wet location that would be fine. I do not see any requirement that it be listed for use below grade or buried.

 

[infinity]

I think if the fitting was listed as raintight/wet location that would be fine. I do not see any requirement that it be listed for use below grade or buried.

So an aluminum wet location fitting can be buried underground? How long would that last covered in dirt? Maybe there are no aluminum fittings for steel RMC.

 

[electrofelon]

So an aluminum wet location fitting can be buried underground? How long would that last covered in dirt? Maybe there are no aluminum fittings for steel RMC.

I assumed steel fittings. Aluminum fittings might be restricted underground or require additional corrosion protection by various parts of 344.10