Topical issues of organization of work on overhead power lines that are in the disconnected position in the zone of influence of other operating lines, the contact wire of Russian Railways and atmospheric influences are covered. The physical foundations of the ongoing processes are explained, known cases of injuries are considered, recommendations are given to the repair personnel of the services of power grid enterprises to ensure safety during repair work. For electricians and foremen of high-voltage overhead line services, dispatch services of power grid enterprises and network control centers, as well as students of power engineering specialties of higher and secondary educational institutions.