A pole that is over how many years old should be supported with a line truck boom?

The correct answer is based on established guidelines regarding the safe handling and maintenance of utility poles. Poles over 20 years old are often deemed at a higher risk for structural weakness due to factors such as weather damage, wear and tear, and the natural decaying process of materials, especially in wooden poles. Using a line truck boom for poles exceeding this age ensures that the work can be performed safely while minimizing the risk of accidents.

The necessity for using specialized equipment like a line truck boom for older poles arises from the fact that their stability might be compromised, making it unsafe for workers to climb. Thus, ensuring the use of proper equipment not only protects the workers but also upholds safety standards in utility maintenance and operations.