The lifting mechanism is intended for nuclear fuel loading in the reactor and reactor unit equipment moving.
The specialists were required to arrange all the electrical equipment, route cable links, and connect crane power supply. The works started as early as March, when the crane was located on the ground. Works in the reactor itself started mid-May as soon as polar crane girders were installed there, followed by the load trolley, the basket and the repair lock.
After the reactor building was covered with the dome, a power supply cable for the polar crane systems was laid along the standard routes directly over the dome to connect the lifting mechanism with the control system. The crane is arranged in such a way that its control system is located in the security building adjoining the reactor building. The mechanism connects with the control unit via 56 cable lines routed through the annulus.
Currently, the polar crane is connected via a temporary circuit. Power is supplied from temporary substations installed at the reactor building.
Electrical works for the polar crane are 95 % complete. They will continue after completion of the first stage of commissionning. Then the specialists of SMU-2 lifting devices division will reeve the main crane hoist, after which erection electricians will start installation of suspension electrical equipment. Thus, the crane will be 100 % assembled. The activities are planned for August.
Titan-2 Holding is the largest in the North-West group of companies, constructing the most important nuclear industry and power facilities. The company performs a full range of construction and installation works from engineering to commissioning.
Titan-2 Holding is the general contractor for the construction of the Leningrad NPP-2 power units. The Holding Companies perform all the civil, installation, and electrical works at a construction site. The works are carried out in the reactor, turbine, power supply, water supply, heat cogeneration buildings and other power unit structures.
The Holding is the main contractor for the construction of the Hanhikivi-1 NPP in Finland.