In viewing residential burial requirements from 300.5 nec. I am coming to the conclusion that a direct burial cable could be at a depth of 18".
Based on using the table 300.5.
6th requirement down covers residential requirements. Stating "One- and two- family dwelling driveways and outdoor parking areas,
*** and used only for dwelling-related purpose.***"
Covering this article requirement, and breaking down the paragraph. residential driveways Is addressed, as well as â€śused for dwelling purposes onlyâ€ť, this last statement reads to me this would cover the yard as well. It does not make sense for the burial area of a driveway to be less than that of the yard.
The reason I am asking. It has been suggested to us the 24" requirement at the top. "all locations not specified below" . Evan thou yard is not specified I believe it is used only for dwelling related purposes.
Thank you, please incite me