As engineers in Japan struggle to bring quake-damaged reactors under control [1], attention is turning to U.S. nuclear plants and their ability to withstand natural disasters.
Rep. Ed Markey, a Massachusetts Democrat who has spent years pushing the Nuclear Regulatory Commission toward stricter enforcement of its safety rules, has called for a reassessment. Several U.S. reactors lie on or near fault lines, and Markey wants to beef up standards for new and existing plants.
Rep. Ed Markey, a Massachusetts Democrat who has spent years pushing the Nuclear Regulatory Commission toward stricter enforcement of its safety rules, has called for a reassessment. Several U.S. reactors lie on or near fault lines, and Markey wants to beef up standards for new and existing plants.
"This disaster serves to highlight both the fragility of nuclear power plants and the potential consequences associated with a radiological release caused by earthquake related damage," Markey wrote NRC Chairman Gregory Jaczko in a March 11 letter [2].
Specifically, Markey raised questions about a reactor design the NRC is reviewing for new plants that has been criticized for seismic vulnerability. The NRC has yet to make a call on the AP1000 reactor [3], which is manufactured by Westinghouse. But according to Markey, a senior NRC engineer has said the reactor’s concrete shield building could shatter "like a glass cup" under heavy stress.
The New York Times reported last week [4] that the NRC has reviewed the concerns raised by the engineer, John Ma, and concluded that the design is sufficient without the upgrades Ma recommended. Westinghouse maintains that the reactor is safe [5].
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Specifically, Markey raised questions about a reactor design the NRC is reviewing for new plants that has been criticized for seismic vulnerability. The NRC has yet to make a call on the AP1000 reactor [3], which is manufactured by Westinghouse. But according to Markey, a senior NRC engineer has said the reactor’s concrete shield building could shatter "like a glass cup" under heavy stress.
The New York Times reported last week [4] that the NRC has reviewed the concerns raised by the engineer, John Ma, and concluded that the design is sufficient without the upgrades Ma recommended. Westinghouse maintains that the reactor is safe [5].
More
1 comment:
You could re enforce it 100 times and it would still be vulnerable to an earthquake. Who the heck would build these on a fault line? OMG...did politicians have any input on the decision making???
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