Minimum Approach Distance increases at altitudes exceeding how many feet?

The correct answer is that the Minimum Approach Distance increases at altitudes exceeding 3000 feet. This guideline is crucial for linemen and electrical workers because as altitude increases, the effects of certain environmental factors can impact safety distances. Specifically, at higher elevations, the thinner air can lead to altered electrical behaviors, including increased arcing and other electrical hazards.

Understanding this standard helps ensure that linemen maintain safety while working near high-voltage lines and equipment in elevated areas. It emphasizes the importance of adhering to specific distances to minimize the risk of electric shock or injury. Those working at altitudes above 3000 feet need to adjust their practices accordingly to align with safety regulations, thereby reducing the chances of accidents or injuries while working on electrical infrastructure.