What term describes the area between the top of direct-burial cable and the top surface of the finished grade?

The term that describes the area between the top of direct-burial cable and the top surface of the finished grade is "Cover." In electrical installations, especially those involving direct-burial cable, it is crucial to maintain an appropriate depth of cover, which ensures that the cables are sufficiently protected from physical damage and environmental factors.

Cover indicates the vertical distance from the cable to the ground surface, ensuring compliance with safety standards and regulations laid out in the National Electrical Code (NEC). This requirement helps protect against accidental digging, reduces risks of cable exposure, and ensures that the installation meets local and national electrical safety regulations.

Other terms such as depth and clearance do not accurately describe this specific area in the context of direct-burial cable. "Distance" is too vague and does not convey the necessary electrical safety context related to burying cables. Therefore, "Cover" is the appropriate and technical term used in the NEC to define this critical aspect of cable installation.