FIELD: electricity.
SUBSTANCE: invention relates to power industry, particularly to methods and devices for preventing a person from falling when raising and lowering on supports overhead transmission lines. Method comprises providing continuous movement of linear mounter on support due to movement of safety catching runner on T-shaped profile or movement of safety catching carriage on C-shaped profile. Runner consists of a housing, side parts of which have skids, a handle and an energy absorber. Energy absorber is fixed by one end in opening of handle, and by other end connects connecting tether with safety belt of linear mounter. Second version of invention uses a safety catcher carriage consisting a of wheel chassis with a moving tooth, attachment assembly connected to tooth and through intermediate link with belt falling damper. Damper is connected with connecting clasp with its hook connected to loop of safety belt of linear mounter. C-shaped profile is made with adjacent holes along its length, and carriage is equipped with an absorber, softening action of dynamic loads. Safety catching runner and safety catcher carriage move along T-shaped and C-shaped profiles and, consequently, synchronously with movement of linear mounter up or down along support, and when linear mounter breaks away from support, its movement is immediately stopped, thus preventing its falling from line support.
EFFECT: invention provides reliable protection of a person from falling when working on supports of different types of overhead transmission lines, and significantly simplifies technological process of operating linear mounter on supports of overhead transmission lines due to that, worker does not have to constantly re-attach device on each level of conducting corresponding operations.
11 cl, 7 dwg
