What is the requirement for cable climbing sleeves when a fall occurs?

The requirement for cable climbing sleeves in the event of a fall is that they must lock immediately upon fall. This design is essential for ensuring the safety of workers who are climbing telecommunications towers. When a fall occurs, the immediate locking mechanism of the climbing sleeve prevents further descent, effectively arresting the fall and protecting the technician from injury.

This aspect of fall protection equipment is critical as it directly relates to the function of the sleeve in preventing accidents. The immediate locking action provides an essential safety feature that helps to ensure that the climber can be safely secured in the event of a slip or loss of balance. This safety feature is a cornerstone of proper equipment use in telecommunications tower work, as it enhances the overall safety of the technician working at heights.

In contrast, the other options do not address the critical function of the climbing sleeve in stopping a fall. Releasing the load or replacing the sleeve immediately after use may serve different safety purposes but do not directly relate to the necessity of immediately locking upon fall. Regular inspections also play a role in maintenance but are not a direct response to the occurrence of a fall.