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First Tier of Reactor Building Outer Containment at Kursk NPP-2 Completed

Power News - Published on Fri, 21 Feb 2020

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The first of 10 key milestones related to the Kursk NPP-2 construction has been performed ahead of schedule in the current year - the installation of the first tier of the reactor building outer containment was completed at power unit No 1. First Deputy Director for the Construction of New Power Units Nikolai Mitrofanov said “Work for Kursk NPP-2 power unit construction are underway according to the schedule and even ahead of schedule. The construction of the containment was carried out in stages. 15 armored units were installed, which closed in a circle of 50.8 meter diameter”.

The outer containment is one of the important power unit localizing safety systems. It is intended both for taking of loads from operational impacts, such as ionizing and thermal radiation, as well as external extreme climatic influences, i.e. hurricanes, tornadoes, seismic impacts of the SSE level (safe shutdown event), as well as the effects of a shock wave and a plane crash. The height of the protective shell is 65.4 meters, the shell thickness ranges from 0.5 to 1.5 meters. The design provides for a five-tier structure, its installation is to be finished in in 2023. The the first tier of the outer containment was installed at the level of -0.050 meters and the structure was finally built up to the level of +8.950 meters. Installation of additional fittings is currently underway, the next stage will be concreting of the second section of the outer containment first tier (while the first one has been already concreted) and the adjacent structures. The next tier is scheduled to be installed in the end of May.

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Posted By : Rabi Wangkhem on Fri, 21 Feb 2020
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