Specialists of subcontracting companies Trest RosSEM, LLC Roin World and JSC Energospetsmontazh have performed a scope of works related to installation of two beams of the polar crane on the rail track at Rooppur NPP Unit 1 (People’s Republic of Bangladesh).
These are basic steel structures of the crane, by means of which further transportation and installation operations for main process equipment of the containment (reactor pressure vessel, steam generators, pressurizer) will be performed.
The polar crane beams were installed using a heavy tracked crane Liebherr in the reactor pressure vessel at elevation +38,500 m.
“Installation of heavy structures required comprehensive and well-coordinated work of subcontracting companies. The specialists of Roin World ensured preparation of the access way for beam lifting by the crane, the specialists of Trest RosSEM installed leaf-type segments of the containment for the rail track installation at elevation +38,500 m within the shortest possible time and the specialists of JSC Energospetsmontazh performed a completing operation – beams installation on the rail track”, noted Yuri Koshelev, Deputy Director for Project Management of JSC ASE Branch Office in the People’s Republic of Bangladesh – Chief Project Engineer.
Currently, works related to installation of the crane structures and mechanisms on the crane track are under way.
Due to the crane moving on a circular track, it will be capable of performing all handling works at any point of the reactor compartment.
It is planned to complete the works on the polar crane installation this June, which will be followed by installation of oversized and heavy equipment of the reactor plant of the first NPP unit.
After the NPP commissioning, the crane will be used for repair works and fuel transportation.
Rooppur NPP with two VVER-1200 reactors and the total capacity of 2,400 MW is being constructed under the Russian design, 160 km from Dhaka, the capital of Bangladesh, in accordance with General Contract dated December 25, 2015. The General Contractor for Rooppur NPP construction is Atomstroyexport (the Engineering Division of ROSATOM). The Russian design with VVER-1200 reactors was selected for the first NPP in Bangladesh, that was successfully implemented at two units of Novovoronezh NPP. This is an evolutionary Generation III+ design which fully complies with all international safety requirements.