Under what circumstances is it safe to climb a tower without a helper or observer?

The safest practice when climbing a tower is to always have a helper or observer present. This is important for several reasons: first, an observer can provide assistance in case of an emergency, ensuring that help can be summoned quickly. Second, having someone else present can enhance safety measures by monitoring the climber's actions and the environment, which may include potential hazards like changing weather or nearby equipment.

Climbing a tower, regardless of the work being performed or the height, carries inherent risks. Even if no electrical or mechanical work is ongoing or if the work is relatively low to the ground, unexpected incidents can occur that may require immediate assistance. The best safety practices dictate that an observer is always crucial when undertaking any tower work.