Associate Safety Professional Practice Exam

Which safety measure is crucial if a crane has struck a power line?

1. Evacuate the area

2. Stay in the crane

3. Contact the line operator

4. Lower the boom

The correct answer is: Stay in the crane

Staying in the crane is the most crucial safety measure if a crane has struck a power line due to the risk of electric shock. When a crane comes into contact with a power line, the crane can become energized, posing a severe hazard to anyone who tries to exit or come near it. Remaining in the crane is essential because the vehicle provides a safe haven as long as the operator does not touch any part of the crane while it is energized. This action minimizes the risk of electrocution, as leaving the crane may create a path for electricity to flow through a person to the ground. In the context of the situation, evacuating the area may seem like a safe option, but it can be extremely dangerous if the crane is still electrified and people attempt to leave the vicinity. Contacting the line operator is also important, but it should be done only after ensuring one’s safety within the crane, as the operator can provide assistance with the power line situation. Lowering the boom is inadvisable since any movement could increase the risk and potentially create a conductive path, worsening the situation. Overall, staying in the crane until the situation is properly assessed by emergency personnel or the power utility is the best course of action to ensure safety