I wonder why they thought "PVC" wasn't sufficient and had to spell it out "rigid polyvinyl conduit"??? Seems to keep getting more complicated to me instead of simpler:( Plus they're using more ink:) Steve...
Steve: Are you referring to whats printed on the side of a stick of conduit? The only reason I could see them printing out " Rigid Polyvinyl-Chloride" is so there is no ifs and or butts about what it is.. Ya never know someone may try to sub "CPVC" for "PVC"..
A.D
Schedule 40 Rigid PVC I notice says for underground and above ground use. Are they still making Schedule 80? I cant seem to find schedule 80 PVC around here.
They should have Sch 80 at the supply house but it isn't going to be at Home Depot
It is aval at my homedepot but not at 1 30 miles away because the ahj don't require it.
Thanks. The one supply house did not have it either around here. Will check another.
"SCH 80" is another one of those "I can't describe subject to physical damage but I know it when I see it" things. If the AHJ thinks things are subject to damage, suppliers will stock Sch 80.
It usually gets used for a PVC riser coming out of the dirt here. Commercial and certainly any service conductor raceway. Not so much for a 1&2 family outlet out in the garden.
The poco will specify sch. 80 out here for any of their risers, especially when extending up a pole. It's also the only thing I'll use under a roadway, as rigid metalic tends to desintigrate in corrsive soils out here.
If you don't have a supplier for shc. 80, you should probably try to find one.
Greg,
I just red flagged someone today because he had sch 40 running up the pole instead of sch 80. Beside that they back filled the trench where the service pipe ran. they just left the end open for me. Wasn't that nice of them! LOL Oh yeah, the house was closed up and I heard dogs barking in there and 2 great big notes on the job site pleading with me to do a service inspection. Maybe next time.
Harold:
Nice to see you back here! OK, did you leave a "open the trench" note? And a 'no entry'?
Welcome back Caper!
Sch80 is required for just about any exposed service conductor (RNC) raceway I can think of here.
Usually we can get away with backfilling the trench if you stick several stubs of conduit down to the pipe along the way that the inspector can measure. In this sand, the trench will backfill itself if it rains and it pretty much rains every afternoon in the summer