Dome installed at Karachi unit 3

01 October 2018

The dome of Karachi unit 3 in Pakistan has been lifted into place, marking the transition from civil construction to equipment installation at the Hualong One unit.

Karachi 3's dome is lifted into place (Image: CNNC)

Karachi 2 and 3 are the first export of China's Hualong One pressurised water reactor design, with construction of unit 2 beginning in 2015 and unit 3 in 2016. The units are scheduled for commercial operation in 2021 and 2022, respectively.

Karachi 3's dome - 23.4 metres high, with a diameter of 46.8 metres and weighing about 388 tonnes - was hoisted into place in the morning of 29 September, China National Nuclear Corporation (CNNC) said. The unit's nuclear island was completed in June, and "pre-introduction" of major components, including the reactor pressure vessel and steam generators, was completed earlier in September. Unit 3's nuclear island was completed in a shorter time than it took to complete the same work for unit 2.

In addition to the two units under construction at Karachi, four Hualong One units - also known as HPR1000 - are being built in China. Fanchenggang 3 and 4 and Fuqing 5 and 6 are all expected to enter commercial operation in 2019-2020.

Pakistan currently has 1355 MWe of nuclear generating capacity from five operating units: a small pressurised heavy water reactor at Karachi, and four Chinese-designed pressurised water reactors at Chashma. A third 1161 MWe Hualong One unit is planned for construction at Chashma.

Researched and written by World Nuclear News