What is the minimum vertical clearance above ground for overhead conductors?

The minimum vertical clearance above ground for overhead conductors is established to ensure physical safety and prevent electrical hazards. According to the National Electrical Safety Code (NESC), conductors must maintain a safe distance above the ground to prevent accidental contact and facilitate safe passage beneath them, especially in areas with pedestrian traffic or vehicular access.

In specific applications, a minimum vertical clearance of 10 feet is typically required for overhead conductors over areas accessible to pedestrians. This height ensures that individuals can walk beneath the conductors without risk of contact.

In other scenarios, such as residential areas or driveways, higher clearances may be mandated, but the baseline of 10 feet is crucial for pedestrian safety. This requirement is particularly pertinent for low-voltage overhead power lines and other similar installations. Given this regulation, the selection of 10 feet as the correct answer aligns with established safety norms.