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"..
"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.
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