The main function in fall protection is to limit the impact of a fall on the human body to below 6 kN. The components of this system consist of an anchorage point, a harness and a fall arrest device. An fall arrest device is available in various designs and models, such as lifelines with integrated shock absorbers, automatic fall arrest devices, blocmax with shock absorber, etc. The fall arrest system can be combined with a positioning system. This method is often recommended and used for working at height and where it is important to keep one’s hands free for the work to be performed. In this situation, the user must be equipped with an adjustable positioning line.