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Keyword：inner containment
Installation of the fifth tier of the inner containment shell begins at Unit 1 of Egypt's El Dabaa Nuclear Power Plant
The Egyptian Nuclear Power Plants Authority (NPPA) recently announced that installation of the fifth tier of the inner containment shell in the reactor building of Unit 1 at the El Dabaa Nuclear Power Plant has commenced. This marks a significant milestone in the civil construction and installation work for the unit. The inner containment shell is a cylindrical structure designed to house the nuclear reactor and related primary circuit equipment of the nuclear power plant. The fifth tier being installed consists of 12 components, all prefabricated on-site at the El Dabaa plant. Each component is 7.5 meters high and weighs approximately 40 to 45 tons, depending on its structural configuration. As planned, the installation of the fifth tier is expected to be completed within two weeks. Subsequently, the remaining tiers will continue to be assembled to form the complete annular inner containment structure. A heavy-duty crane with a lifting capacity of 2,200 tons will be used for the lifting operations at the construction site...
2026-08-17
Construction of inner containment begins at Unit 4 of Leningrad Nuclear Power Plant II
Construction of the inner containment of the reactor building at Unit 4 of the Leningrad Nuclear Power Plant II in Russia has commenced. The unit features a VVER-1200 reactor, and the inner containment is a key component of the unit's passive safety system, as well as part of the plant's confinement safety system. Construction workers have installed the first tier of vertical sealed steel liner to its design position. The steel structure weighs approximately 97 tonnes, and the lifting and positioning operations were carried out using a heavy crawler crane, with the entire installation process lasting about 7 hours. The contractor, TITAN-2 Holding Company, stated that the preparatory work took several months, including component fabrication, protective coating application, on-site assembly and welding, and structural quality inspection...
2026-08-06