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Wednesday, November 10, 2021
Question:
Hello,
We've been installing PVC conduit in out back yard for 120-volt lights on poles. The inspector says that the burial depth should be at least 18 inches from grade level to the top of the pipe. We've dug the trench for 12 inches deep. Is the inspector correct?
Henry Paul
A
Answer:
Hi Henry,
Thanks for the question. In this case, and based on the information provide, the inspector is correct. Section 300.5(A) refers to Table 300.5 which indicates the minimum burial depth required is 18 inches for nonmetallic raceways covered in Column 3 of the Table.