What is the safest practice when extending an aerial ladder?

In the context of extending an aerial ladder, the safest practice encompasses multiple critical safety protocols that are essential for ensuring the well-being of both the personnel operating the ladder and those nearby.

Maintaining a steady speed during the extension process is vital because erratic movements could lead to instability, increasing the risk of accidents or injuries as the ladder is deployed. This practice ensures that the ladder extends smoothly and predictably.

Ensuring that no personnel are on the ladder during extension is crucial, as this reduces the risk of injury from sudden movements or the ladder not being properly stabilized while it is being raised. It allows for a clear and safe area for the ladder to deploy without the potential for someone to be jeopardized by unforeseen circumstances.

Checking for obstacles in the vicinity is also a key safety measure. Before extending the ladder, it is essential to be aware of nearby structures, power lines, and other hazards that could impede the ladder's operation or cause injury to the operator or others around.

Given these important considerations, recognizing that all of these practices contribute to the safe operation of an aerial ladder clarifies why the answer is that they should all be followed collectively. This comprehensive approach ensures that ladder operations are executed with maximum safety.