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國際核能現況 : Hot testing of Sanmen 2 AP1000 completed
發表人 nicenter 於 2018/2/2 15:34:07 (61 人讀取)

Unit 2 of the Sanmen nuclear power plant in China's Zhejiang province has successfully completed pre-operational testing, State Nuclear Power Technology Corporation announced yesterday. Sanmen 1 is expected to be the first Westinghouse AP1000 to begin operating later this year, with Sanmen 2 also set to start up in 2018.





A worker inspects equipment at Sanmen 2 during the hot tests (Image: SNPTC)

The hot tests - which were carried out over 77 days - aim to simulate the temperatures and pressures which the reactor's systems will be subjected to during normal operation. This important phase ensures coolant circuits and nuclear safety systems are functioning properly before fuel can be loaded.


Cold hydrostatic testing of Sanmen 2's primary circuit was completed on 2 September. Those tests involved filling the reactor's primary circuit with water, which is circulated at high pressure by the reactor coolant pumps to verify that the welds, joints, pipes and components of the reactor coolant system and associated high-pressure systems meet regulatory standards. The coolant pumps will help to maintain the reactor's internal temperature at a safe level during operation.


Two AP1000 units are under construction at both the Sanmen site and at Haiyang in Shandong province. Sanmen 1 is expected to be the first Westinghouse AP1000 to begin operating later this year. Hot testing of Sanmen 1 was completed on 30 June. Haiyang 1 and Sanmen 2 are also expected to begin operating by the end of this year, with Haiyang 2 expected to start up in 2019.


Four AP1000 reactors were also being built in the USA - two each at Vogtle and Summer. However, construction of the two Summer units was suspended in August.


Researched and written
by World Nuclear News



source:http://www.world-nuclear-news.org/NN-Hot-testing-of-Sanmen-2-AP1000-completed-0102184.html



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