Russia has completed testing the hermetic enclosure system of the reactor containment building at unit 1 of the Leningrad Phase II nuclear power plant under construction in western Russia.
The work is one of the main stages of pre-commissioning a new reactor unit. The testing took four days and proved the tightness and strength of the system and thus its readiness for operation, Alexander Belyaev, deputy chief engineer of the plant, said in a ROSATOM statement on 11 May.

Source: World Nuclear News