Why is it important to carry the hand line on a breakaway hook while climbing a pole?

Carrying the hand line on a breakaway hook while climbing a pole is crucial for safety, primarily to prevent the climber from being pulled off the pole due to snagging. When climbing, if the hand line gets caught or snagged on something, there is a risk that the sudden tension can pull the climber off balance or even off the pole entirely. The breakaway hook is designed to disengage under excessive force, which can help mitigate this risk and allow the climber to maintain both stability and control.

By using the breakaway hook, the climber can ensure that even if the hand line does become snagged, the hook will release before causing unnecessary strain or potential injury. This safety measure is essential for maintaining the climber's position and reducing hazardous situations that could arise during the ascent or descent.