What is the specified minimum approach distance when working near insulated overhead ground wires for a 15-kilovolt circuit?

The specified minimum approach distance for working near insulated overhead ground wires in a 15-kilovolt circuit is indeed 2 feet 2 inches. This distance is established to ensure the safety of personnel working in proximity to electrical lines, providing a buffer zone to minimize the risk of electric shock or arc flash.

The importance of maintaining this specific distance is rooted in the electrical safety standards that prioritize worker protection. This measurement considers potential electrical hazards and the presence of an energized circuit nearby. By adhering to this minimum approach distance, workers can mitigate the risk of electrical accidents when performing their duties in the vicinity of overhead lines.

Other distances listed are either too short, which could expose workers to dangerous conditions, or improperly defined by regulatory bodies. Having a precise measurement like 2 feet 2 inches ensures consistency in safety protocols across the industry.