NRC


Benny Hill Explains the NRC Approach to Nuclear Safety

, director, Nuclear Safety Project

The Nuclear Regulatory Commission’s safety regulations require that nuclear reactors be designed to protect the public from postulated accidents, such as the rupture of pipes that would limit the flow of cooling water to the reactor. These regulations include General Design Criteria 34 and 35 in Appendix A to 10 CFR Part 50.

Emergency diesel generators (EDGs) are important safety systems since they provide electricity to emergency equipment if outside power is cut off to the plant—another postulated accident. This electricity, for example, would allow pumps to continue to send cooling water to the reactor vessel to prevent overheating damage to the core. So the NRC has requirements that limit how long a reactor can continue operating without one of its two EDGs under different conditions. The shortest period is 3 days while the longest period is 14 days. Read more >

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Like Bonnie Tyler, NRC is Holding Out for a HERO

, director, Nuclear Safety Project

In Nuclear Energy Activist Toolkit #47, I summarized the regulations and practices developed to handle emergencies at nuclear power plants. While that commentary primarily focused on the response at the stricken plant site, it did mention that nuclear workers are required to notify the Nuclear Regulatory Commission (NRC) promptly following any declaration of an emergency condition. The NRC staffs its Operations Center 24 hours a day, 365 days a year to receive and process emergency notifications. Read more >

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UCS to Nuclear Regulatory Commission: Big THANKS!

, director, Nuclear Safety Project

This spring, I ran into Mike Weber, Director of the Office of Nuclear Regulatory Research for the Nuclear Regulatory Commission (NRC), at a break during a Commission briefing. The Office of Research hosts a series of seminars which sometimes include presentations by external stakeholders. I asked Mike if it would be possible for me to make a presentation as part of that series. Read more >

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Grand Gulf: Three Nuclear Safety Miscues in Mississippi Warranting NRC’s Attention

, director, Nuclear Safety Project

The Nuclear Regulatory Commission (NRC) reacted to a trio of miscues at the Grand Gulf nuclear plant in Mississippi by sending a special inspection team to investigate. While none of the events had adverse nuclear safety consequences, the NRC team identified significantly poor performance by the operators in all three. The recurring performance shortfalls instill little confidence that the operators would perform successfully in event of a design basis or beyond design basis accident. Read more >

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Grand Gulf: Emergency Pump’s Broken Record and Missing Record

, director, Nuclear Safety Project

The Grand Gulf Nuclear Station located about 20 miles south of Vicksburg, Mississippi is a boiling water reactor with a Mark III containment that was licensed to operate by the Nuclear Regulatory Commission (NRC) in November 1984. It recently set a dubious record. Read more >

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