It is important that the personnel using the lifelines are familiar with the principles of working at height and are trained in the use of lifelines. When connecting to systems, the right equipment must be used in the right way. During use, the consequences of a possible fall should be taken into account and a rescue plan should be prepared if there is a possibility that the worker may be suspended as a result of the fall. The maximum number of users specified by the manufacturer should be observed and use not in accordance with the manufacturer’s instructions should be avoided.