What scenario involves a worker contacting overhead power lines?

When considering the scenario that involves a worker contacting overhead power lines, the situation where a worker carries a long metal pole is the most direct and clear example. This action poses a significant risk because the long metal pole can easily reach up to the height where overhead power lines are located, creating an opportunity for contact. In this case, the metal pole can conduct electricity, leading to potential electrocution or severe injury if it makes contact with the power line.

Other scenarios, while they may involve overhead power lines, do not directly indicate contact with them. For instance, a worker climbing a ladder near power lines poses a risk of coming too close, but it does not necessarily mean contact will be made. Similarly, a worker walking under a power line does not interact with the line directly, rather they are beneath it. Adjusting electrical equipment typically involves working with devices that may be connected to power sources but does not imply an interaction with overhead lines. Therefore, the action of carrying a long metal pole is most closely associated with the possibility of contacting overhead power lines.