Reactor Vessel Installed At First Unit Of Belarusian NPP

The reactor pressure vessel was installed at first power-generating unit of the Belarusian NPP, the media report with a reference to ASE Group, the general building contractor of the Belarusian nuclear power plant.

According to the source, the reactor pressure vessel of the first power-generating unit was installed into its designated position at 20:30 on 1 April.

reactor vessel belnpp

Photo: BelTA/Belarusian Energy Ministry

The VVER-1200 reactor pressure vessel was produced by AEM Technologies Company (an engineering division of the Russian state corporation Rosatom).

Before the installation, the vessel passed an inspection by a special commission who found that is meets all the regulatory requirements.

The installation included two stages. The vessel was lifted onto the transport gantry and moved to the central chamber on rails. After that, a polar crane placed the vessel into a vertical position and put it on the bearing ring inside the reactor pit.

The reactor vessel weighs over 330 tonnes. It is 11 meters long and has 4.5 meters in diameter.

The reactor pressure vessel was delivered to the Belarusian nuclear power plant construction site on 28 December.


Reactor vessel travels to the construction site. Photo: Vasily Semashko via TUT.BY

The journey of the reactor vessel to Belarus started on 31 October. A special truck delivered it to the local river port in the Russian Volgodonsk, and afterwards the reactor pressure vessel was transported by river to Novovoronezh.

However, the delivery was followed by a minor incident – the equipment grazed an electricity transmission tower while being transported. The incident took place at the slavnoe railway station in central Belarus on 27 December.  According to official sources, it hadn’t resulted in any visible damage to the vessel.

The vessel was installed at the first power unit instead of the one that fell down and was replaced in summer 2016. The accident postponed the launch of the Belarusian NPP till 2019.