According to 1926.1408, what is the required clearance when operating near high voltage power lines rated at 275kV?

The correct answer indicates that when operating near high voltage power lines rated at 275kV, a clearance of 20 feet is required. This specification is crucial for ensuring safety while working in proximity to high voltage electrical lines.

The reasoning behind this requirement lies in the potential hazards associated with high voltage electricity. Electrical arcs can occur if equipment or personnel come too close to power lines, leading to serious injuries or fatalities. The 20-foot clearance is a safety measure to mitigate these risks, ensuring that there is sufficient space to prevent accidental contact or electrical arcs when cranes or other equipment are in operation.

It's important for signal persons and crane operators to be well-versed in these clearance requirements to maintain safe working conditions and comply with regulations designed to protect workers from electrical hazards. Understanding this regulation is vital for the safety of everyone on the job site.