Staff members prepare for the dome installation at No 5 unit of Fuqing Nuclear Power Plant in Fuqing, east China's Fujian province, May 25, 2017. [Photo/Xinhua]

FUZHOU -- China successfully installed the containment dome for its first demonstration nuclear power project using Hualong One technology, a domestically developed third-generation reactor design, in East China's Fujian province on Thursday.

The hemispherical dome, weighing 340 metric tons and measuring 46.8 meters in diameter, was installed by crane on the No 5 unit of China National Nuclear Corporation (CNNC) in Fuqing City at 5:58 pm.

The installation marks the completion of construction work on the pilot project and the beginning of the assembly stage, said Yu Peigen, deputy general manager of CNNC at the site of installation.