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Division Spotlight
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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August 2024
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Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Arnaud Duthou, Aurélien Mattei (Rolls-Royce Civil Nuclear)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 736-746
A substantial number of nuclear power plants in the world are still operating with analog safety classified I&C systems. Their modernization, often necessary to obtain an extended operating license, in particular for the Neutron Instrumentation Systems (NIS), is crucial to ensure safe and reliable operation of the plant, but their upgrade to digital is often seen as complex. However, Rolls-Royce Civil Nuclear has successfully deployed its digital technology for NIS modernization projects around the world, and will soon start an ambitious project in France. The successful completion of all these projects shows that with proper process, technology and requirements analysis, such modernizations toward Digital can be achieved successfully within budgets and schedule. This paper gives an overview of two particular NIS modernization projects: • The successful I&C refurbishment at LingAo, China in 2014 • The future modernization of the 900MW French fleet, starting 2019 Although both projects are carried out on the same type of reactors, they are varying on many other aspects such the number of units modernized, the scope, integration with other systems and different regulatory requirements. Thanks to a large experience dealing with major and very different projects, subsequent modernizations can be achieved smoothly, especially regarding qualification and licensing, systems integration with older systems and time constraints. As a result, the best solutions, activities and business practices for the successful modernization of a Westinghouse-type PWR’s Neutron Instrumentation System will be highlighted, based on Rolls-Royce previous accomplishments and future projects using its Spinline digital safety platform for NIS.