How can linemen prevent falls while working at heights?

Using harnesses, guardrails, and following safety protocols is crucial for fall prevention when working at heights. Harnesses provide a secure attachment point that can stop a worker from falling if they lose their balance or if something unexpected occurs. Guardrails act as a physical barrier, helping to prevent accidental falls from elevated surfaces. Moreover, adhering to established safety protocols ensures that linemen are aware of the hazards associated with their work environment and are equipped to manage those risks effectively.

While the other choices might contribute to a safer work environment in specific contexts, they do not directly address fall prevention as efficiently as harnesses and guardrails do. For instance, working during calm weather can reduce the risk of weather-related incidents but does not eliminate the risks associated with working at heights. Ensuring tools are tied down prevents them from falling and causing injury to others, but it does not protect the linemen themselves from falls. Taking regular breaks may help reduce fatigue, which is important for overall safety, but it does not directly prevent falls.