The installation of the 1st power block’s thrust truss has commenced at the Kursk NPP-2

A thrust truss is a piece of the reactor vault equipment designed for durable fixation of a reactor vessel. A truss is a welded steel construction with a diameter of over 7 meters and a height of around one meter.

‘The installation of the thrust truss is one of the key milestones in 2019’, Rostislav Kimlik, the deputy chief engineer of the capital construction department and the head of construction control at the Kursk NPP-2, said. ‘The equipment has been installed into the reactor vault at the +16.5 mark using a DEMAG crane’.

The thrust truss was delivered to the construction site in pieces, which was followed by its top assembly. The total weight of the equipment is 25,760 kilograms. Once the truss is installed at its design position, the vault will be filled with special concrete, after which the team will start constructing the emergency localization zone adjacent to the reactor vault.

According to Alexey Smirnov, the deputy director of the Kursk NPP-2 internal construction resources management at EC ASE, the installation was completed ten days ahead of schedule. ‘It will enable us to both conduct works in the first power blocks reactor vault and start the installation of the melt trap at the second one ahead of schedule’.

*The 3+ generation 1st and 2nd power blocks of the Kursk NPP-2 are pilot projects constructed based on the VVER-TOI project (pressurized water type reactor standard optimized). This is a new designed elaborated by Russian specialists (ASE Group, the engineering division of the Rosatom State Corporation) on top of the technical solutions of the VVER-1200 NPP project. Compared to the previous-generation power blocks (VVER-1000), the capacity of each has been increased by 25%, up to 1,255 megawatt. The life span of the major equipment has doubled. The new Kursk NPP-2 power blocks comply with the most recent safety regulations set by the IAEA.

The developer and the technical customer of the facility is the Rosenergoatom Joint-Stock Company. The general designer and the general contractor is ASE.

As of now, the 1st, the 2nd and the 4th power block of the Kursk NPP run at the capacity set in the dispatch schedule. The 3rd power block is undergoing scheduled maintenance.

The radiation background at the Kursk NPP and within its location area is within the limit of normal power block operation and does not exceed the natural background level.

All up-to-date information about the radiation environment next to the Russian NPPs and other nuclear power facilities is available at www.russianatom.ru

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