China’s Tianwan nuclear power station disconnected its No. 1 Unit from the network for a scheduled overhaul outage, which will take place over the course of 53 days, with JSC Rusatom Service in charge of the overhaul operations.
Jiangsu Nuclear Power Corporation operates the Tianwan nuclear power station and has a contract with Rusatom for technical support through 2017. During this overhaul, Rusatom is responsible for chief supervision of the unit’s systems and equipment repairs, and will work on the first circuit collectors of the unit’s steam generator, upgrading the seal assemblies of its flange connectors and help the unit transition to a new fuel, TVS-2M, by supporting the adjustment of the Protective Tube Unit position. Rusatom also will repair pumping equipment and monitor the turbine rotor, amongs other services.
A total of 15 Russian groups will be involved in the unit’s outage operations, including OJSC Concern Rosenrgoatom, OJSC OKB GIDROPRESS, JSC CDBMB, OJSC Power Machines and RNC Kurchatov Institute, among others.