en.Wedoany.com Reported - The installation of the core catcher for Unit 3 (VVER-1200 reactor) of the Leningrad Nuclear Power Plant has been completed. This 120-ton base plate was installed in the reactor concrete shaft, supported by cantilever trusses, and is the first safety system installed for this unit. Specialists from Titan-2 Holding completed the operation in just one work shift.
According to Konstantin Khudyakov, Project Director for the Leningrad Nuclear Power Plant facility at Titan-2 Group, as of now, the reactor shaft for Unit 3 is 55% complete, with nearly 900 tons of equipment already filled. Next steps include installing thermal insulation, support trusses, thrust trusses, and other equipment, assembling measurement channels, and pouring the shaft to its design height to enable the assembly of the reactor pressure vessel as early as next year. Currently, over 1,400 workers and 190 pieces of equipment are operating across 53 construction sites for the unit under construction, with some projects already completed ahead of schedule.
The core catcher is a unique development by Russian nuclear scientists and one of the most important safety systems for nuclear power plants. It consists of multiple large equipment and components, filled with special materials, designed to handle beyond-design-basis accidents during the ex-vessel phase of the reactor pressure vessel. It can receive, store, and cool molten material from the core and reactor pressure vessel until it fully crystallizes. All Russian VVER-1200 Generation III+ reactor units are equipped with this system. The world's first core catcher was installed at the Tianwan Nuclear Power Plant, and domestically in Russia, it has also been installed at Unit 2 of the Leningrad Nuclear Power Plant and Unit 2 of the Novovoronezh Nuclear Power Plant.
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