What type of belay arrests a falling load only if the device is operated properly?

The type of belay that operates effectively and arrests a falling load only when the device is operated properly is known as a conditional belay. This system relies on the user's ability to manage the device correctly; if the operator does not act as required, the belay may fail to stop the fall. This highlights the importance of the operator's training, skills, and situational awareness in utilizing the belay device effectively.

In contrast, other belay types may have inherent mechanisms or redundancies that provide additional safety. For instance, a mechanical belay typically incorporates mechanisms that assist in automatically catching a fall without requiring continuous input or management from the user. Understanding the distinctions among these belay types is crucial for technicians in rescue operations, ensuring they are choosing the appropriate system based on the context and level of required safety.