The dome of the inner containment has been lifted into place at Unit 6 of the Lufeng nuclear power station in Guangdong province, southern China, the China Nuclear Energy Association (CNEA) reported.
The steel dome – measuring 45 metres in diameter and weighing 275 tonnes – was raised some 60 metres above ground level using a crawler crane and lowered into position on top of the walls of the double containment structure.
At a nuclear reactor, the inner containment is a critical safety component, designed to prevent radioactive leakage into the environment in the event of an emergency. An outer dome will be installed over the inner one.