What is the minimum clearance for a crane operating near an energized power line of 40 kV for a non-qualified electrical worker?

The minimum clearance for a crane operating near an energized power line of 40 kV for non-qualified electrical workers is indeed set at 10 feet. This requirement is based on safety regulations that aim to prevent electrical hazards when operating heavy equipment near potentially dangerous electrical sources.

The reason this distance is specified is to ensure that individuals are protected from electrical arcs and accidental contact with the power lines, which can be life-threatening. The 10-foot clearance is particularly important because it provides a buffer zone to mitigate the risk of injury or fatality should any equipment or personnel unintentionally come close to the power line.

For voltage levels above 50 kV, the safe operating distances generally increase, reflecting the heightened risk associated with higher voltages. Non-qualified workers, who may not have specific electrical training, are especially vulnerable in these situations, thus the established minimum clearance helps ensure their safety while conducting their duties around cranes and other heavy machinery.