Specialists of JSC MSU-90 and JSC UAT have mounted a supporting truss in the reactor building of the second Power Unit at the Leningrad NPP under construction.

The truss is a metal structure, which serves as biological protection for the reactor vessel, protecting it from loads and seismic shocks. In future it shall be filled in with special concrete having high radiation damage stability.

Prior to its installation the truss was assembled by specialists of the first Unit of JSC MSU-90. Overall weight of the structure is 140 tons. It was moved into the reactor vault by heavy duty Liebherr crane with capacity of 1350 tons.


The Holding “Titan-2” is the largest in the North-West group of companies, erecting the most important objects of the nuclear industry and energy. The organization performs a full range of construction and installation works from engineering to commissioning.

The Holding “Titan-2” is one of the main contractors for the construction of power units No. 1 and No. 2 of the Leningradskaya NPP-2. Main organizations of the company perform 30% of general construction and 80% of installation works on the site. Specialists of the holding are engaged on the objects of the Leningradskaya NPP-2 first and second power units. The works are being performed in the buildings of the reactor, turbine, electricity, water, heating system and other structures of power units.