For the purpose of avoiding the frosting up and the damage caused by it on the 500 kV power transmission line “Kavkasioni” which is on the account of JSC “Sakrusenergo” the installation of the equipment for the control of the occurrence of frosting up and melting has started. These activities will decrease the chances of emergency disconnections of the OHL caused by the climatic conditions. Their testing will start during the winter of the current year.