What must be done to ensure safety while working near energized power lines with mobile cranes?

Establishing a safety perimeter is vital when working near energized power lines with mobile cranes to prevent potential electrocution or accidents. A safety perimeter involves defining a specific boundary around the area where the crane operates, ensuring that personnel and equipment stay at a safe distance from the power lines. This distance is crucial as it helps to mitigate the risk of the overhead lines coming into contact with the crane or its load, which could lead to severe injuries or fatalities.

Implementing a safety perimeter also includes considering the crane's maximum height and any potential swing radius of the load. This proactive measure is part of comprehensive safety planning and is often mandated by safety regulations and procedures governing operations near power lines. By delineating a clear area, all personnel are made aware of the hazards and can maintain a safe distance, thereby significantly reducing the chances of an electrical accident.

While other measures like inspecting equipment, establishing communication, and controlling the speed of operation are important for overall crane safety, they do not directly address the immediate hazard posed by nearby energized lines in the same manner that a defined safety perimeter does.