Underground Conduit

[Sully18]

In a earth-movement situation, can you run "a 2 inch ridgid conduit, or a scheduled 80 ridgid conduit, or a ridgid conduit with slip joints, or do not use this application?

 

[pete m.]

You could use any of these methods but without an expansion fitting it will move with the earth making it no better than schedule 40 PVC.

Pete

 

[cadpoint]

There are plenty of listings in the Index for Expansion Joints(fitting) in NFPA-70 -2011, PVC does have an explaination.

While it doesn't exactly mention PVC underground it does say where to install them otherwise, 352.44.

 

[Smart $]

In a earth-movement situation, can you run "a 2 inch ridgid conduit, or a scheduled 80 ridgid conduit, or a ridgid conduit with slip joints, or do not use this application?

What is the application and cause of earth movement? Using rigid conduit and slip-joints (or any other method) only work as good as the design allows.