Electrical Code Calculations, Level I (1-4) Practice Test

The minimum height for electrical services installed over public sidewalks is 10 feet. This requirement is established to ensure safety for pedestrians and to provide enough clearance for vehicles and other activities that may occur beneath the overhead service. Maintaining this height helps to prevent accidental contact, which could lead to serious injuries or electrical hazards.

This standard is in line with the National Electrical Code (NEC) regulations, which aim to ensure that electrical installations do not create hazards for the public. The other height options are either too low or exceed typical requirements for pedestrian clearance and are not prescribed for this specific application.