Toshiba-Westinghouse AP 1000 Nuclear Reactor Hydrogen Igniters: US Atomic Safety Licensing Board to Hear Oral Arguments on Concerns

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Five years ago, Southern Nuclear Operating Company identified a key atomic reactor safety risk: the potential for hydrogen generated from an atomic reactor meltdown to seriously damage the containment of the AP1000 atomic reactor at Vogtle Units 3 and 4. In a letter to the NRC, the Company states: “Design reviews in 2011 identified a credible scenario in which the applicable plant damage state meets the core damage frequency cutoff to be considered as part of the severe accident analysis”The AP1000 containment is already within 1 pound per square inch of its design limit without considering the additional pressure that would be created by either a detonation or deflagration shock wave if one of the proposed igniters causes backflow into a sub-compartment“. (BREDL Request for Hearing, May 2016)
Fukushima Daiichi Nuclear Power Station,  Reactors 1 to 4 from right to left.16 March 2011, 09:35 AM (local time)  CC BY-SA 3.0  by Digital Globe
Fukushima Daiichi Nuclear Power Station, Reactors 1 to 4 from right to left.16 March 2011, 09:35 AM (local…

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