National Electrical Code (NEC) Article 300 Practice Test

The minimum cover requirement for Type UF (Underground Feeder) cable when installed outdoors, particularly under a driveway, is specified in the National Electrical Code (NEC). For conductors buried under driveways, the NEC mandates a minimum depth of 24 inches. This depth ensures that the cable is adequately protected from potential physical damage and adverse environmental conditions.

When considering installation under areas that experience vehicular load, such as driveways, the additional depth minimizes the risk of the cable being compromised during the use of heavy equipment or the pressure exerted by vehicles. This approach enhances safety and longevity for the electrical installation.

In contrast, other depths listed as choices would not adequately provide the same level of protection for Type UF cable in this context, which could lead to damage or hazards, especially in a location that may see frequent vehicular traffic. This careful consideration is essential for compliance with NEC standards and promoting electrical safety.