Service drop conductors that do not exceed 300 V to ground and go over residential driveways must be how many feet above finish grade?

Service drop conductors that do not exceed 300 V to ground and go over residential driveways must be how many feet above finish grade?

• A. 10 feet
• B. 12 feet
• C. 14 feet
• D. 16 feet

Answer: (B)

Service drop conductors that do not exceed 300 V to ground and span over residential driveways must be a minimum of 12 feet above the finish grade. This height is specified to ensure safety and provide adequate clearance for vehicles, reducing the risk of accidental contact with the conductors. The National Electrical Code (NEC) outlines this requirement to prevent hazards and enhance safety in residential areas where vehicles frequently pass underneath. Adequate clearance also protects the conductors from potential damage and maintains the integrity of the electrical service. Thus, the requirement for 12 feet establishes a standard that balances safety with functional design in residential electrical installations.

Service drop conductors that do not exceed 300 V to ground and span over residential driveways must be a minimum of 12 feet above the finish grade. This height is specified to ensure safety and provide adequate clearance for vehicles, reducing the risk of accidental contact with the conductors. The National Electrical Code (NEC) outlines this requirement to prevent hazards and enhance safety in residential areas where vehicles frequently pass underneath. Adequate clearance also protects the conductors from potential damage and maintains the integrity of the electrical service. Thus, the requirement for 12 feet establishes a standard that balances safety with functional design in residential electrical installations.