Working at the entrance of the cave also requires wearing a high-altitude differential device

The high-altitude differential not only needs to be used at heights above 2 meters, but also during operations at openings below 2 meters, in order to prevent people from falling from the opening to the bottom without protective structures.

For example, in working environments where guardrails, door and window protection structures have not yet been installed, such as stairwells, elevator entrances, loading entrances, passage entrances, and construction entrances of buildings, if operators fall from high altitude, it is easy to cause serious damage to their internal organs or skin. Firefighters need to use rescue tripods and other tools to come and rescue.

So when working in deep openings, workers must wear high-altitude differential devices and choose the appropriate lifting point for the differential device. The lifting point can be a fixed building at the opening or a rescue tripod built on top of the opening.

During the homework process, it is necessary to constantly replace the suspension points according to the movement of the work range. In order to reduce the frequency of suspension point replacement, a speed differential with a longer length of steel wire rope can be selected.