The outer steel dome has been installed at Unit 3 of the Changjiang nuclear power station in Hainan province, southern China, China National Nuclear Corporation (CNNC) has said.
The dome – measuring 53 metres in diameter, 13 metres in height and weighing about 415 tonnes – was lifted into place on top of the containment building using a 3,200-tonne crane. The process took just under two hours.
In February 2023, the steel dome for Changjiang-3’s inner containment was raised by crane and placed on top of the walls of the double containment structure. The inner containment dome has since been concreted.