Rooppur NPPInstallation of outer containment dome begins at unit-1

Installation of the dome of outer containment at the reactor building of unit-1 of Rooppur Nuclear Power Plant begins on November 10. Installation of the lower tier of the dome has already been completed.

It took 5 hours for installing the heavy structure with a weight of 200 tons and a diameter of 46.3 meters in the design position at a height of 48.8 meters.

Installation of the upper tier and concreting will take place in the coming days.

“The outer containment is one of the key localizing safety systems. It is a reinforced concrete structure protecting the reactor from severe external impacts including earthquake, tsunami or hurricane”, said Alexey Deriy, ASE Vice President and Director for the Rooppur NPP construction project.

Apart from the outer containment, the reactor building is protected with the inner containment that was installed in 2021. Double containment is a distinctive feature of the Russian design of power units with VVER-1200 reactors, ensuring the highest level of safety.

Dome assembly and installation works are carried out by specialists from the Trest RosSEM Branch, a part of the Rosatom Engineering Division.

Rooppur NPP equipped with two VVER-1200 reactors of a total 2400 MW capacity is being implemented by Rosatom Engineering Division as the General Contractor. The Generation III+ Russian VVER reactors fully comply with all the international safety requirements.