Electrical Apprenticeship Year 1 Practice Exam

The minimum vertical clearance required above finished grade for sidewalks from overhead conductors is established for safety and accessibility. The correct answer is 10 feet. This clearance ensures that pedestrians are safe from accidental contact with overhead electrical wiring and allows for standard activities such as the passage of larger vehicles or equipment below these conductors, without the risk of interference.

Maintaining this specific height helps to prevent accidents and ensures compliance with electrical safety codes and regulations. Proper clearance is essential not only for pedestrian safety but also for maintenance activities involving taller vehicles, which may not be considered if the clearance were set lower. Safety standards are built on thorough assessments of risks associated with electrical installations, and the 10-foot requirement reflects a balance between safety considerations and practical use of public pathways.