What is the primary use of a guard structure in power-line work?

The primary use of a guard structure in power-line work is to protect from falling conductors. These structures are strategically placed to ensure safety by providing a physical barrier or reinforcement that prevents conductors from falling onto areas where personnel or equipment may be present. This is especially crucial during maintenance or repair work where the integrity of overhead lines is critical. By using guard structures, crews can minimize the risks associated with accidental contact with low-hanging or downed power lines, thus enhancing overall safety on the job site.

In contrast, while attaching hot sticks and maintaining conductor tension are essential functions in line work, they do not align with the primary purpose of guard structures. Additionally, conducting electricity is a function related to the conductors themselves, not the guard structures that support safety measures. This distinction helps clarify the role of guard structures in preventing accidents and ensuring a safe working environment for linemen.