What is an avoidance zone in the context of power lines?

• A. That area above and below power lines that is outside the prohibited zone. Crane operations in this area should be avoided.
• B. The area around the crane's operator cab
• C. The area behind the operator
• D. The area under the load path

Answer: (A)

An avoidance zone is a safety buffer around overhead power lines that crane operators must keep clear. The area immediately next to the lines is the prohibited zone, where contact is not allowed. Beyond that, there is the avoidance zone—the vertical space above and below the lines outside the prohibited zone—where crane operations should be avoided because the crane, its load, or equipment could move into the conductors if the boom or load shifts. This concept helps prevent accidental contact by ensuring routes and positions stay out of the lines’ reach, even during slewing or lowering. If you ever can’t stay out of this area, you must stop and address the risk, such as de-energizing the lines or using safe alternative procedures.