What is the minimum burry depth for PVC conduit burried undergroud? I have seen a specification of 30" for a ductbank however this particular conduit will not be in a ductbank. Shoud there be at least 24" from grade to the PVC?
What is the minimum burry depth for PVC conduit burried undergroud? I have seen a specification of 30" for a ductbank however this particular conduit will not be in a ductbank. Shoud there be at least 24" from grade to the PVC?
It can range from 0" under a slab to 30" depending on the circuit. You need to check 300.5
I'm so old when I go out to eat they ask me to pay in advance
In the 2008 NEC, 352.10(G) (PVC Conduit section) refers you back to Table 300.5 (minimum cover requirements, 600V and less). The burial depth of the pipe will depend on what's above it. Table 300.5 Column 3 should give you the answer for PVC.
We have clearance, Clarence. Roger, Roger. What's our vector, Victor?
The area I will be burying the conduit is on a grassy area beside a parking lot. Because I do not see anything covering a "field" or "grassy area" I believe that I should use the first row in this table for "all locations no specified below" and therefore burry it at least 18" deepOriginally Posted by ericsherman37
That is correct.
Instructor, Industry Advocate
field ?
don't do like one fellow did me. That 18" is from the top of the dirt, not the top of the field grass
I'm so old when I go out to eat they ask me to pay in advance
A minor detail. It's 18" of cover, not 18" deep trench (I know you didn't say this).
Lou (wannabe economist)
If you relentlessly pursue perfection, you will eventually catch excellence.
Pool panel feeder, I go 20 inches to the top so there are no questions during inspection. Although getting a trench 2 inches deeper here is cake.
Chris it's easy for you, you have Al.
Al is just about starting to catch up with Iwire's presents on this forum.Chris it's easy for you, you have Al.
Norb
My Boss is a Tyrant and my Employee is an Idiot.
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