on nuclear power plants in EPRI NP, “Guidelines for Nuclear Plant Response to an Earthquake,” December This regulatory. These guidelines are in EPRI NP, “A Criterion for Determining Earthquake,” July ; EPRI NP, “Guidelines for Nuclear Plant. EPRI-NP Guidelines for Nuclear Plant Response To an Earthquake.
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Following the earthquake, both North Anna units experienced a complete loss of offsite alternating current AC power LOOP sources to emergency electrical buses due to the actuation of transformer pressure relays from the effects of seismic action. Drag or zoom the map to explore different areas. A backup, “station blackout” diesel generator was started to assume the loads that were being supplied by the 2H EDG. The inspections found that the equipment was in satisfactory condition.
Units 1 and 2 entered cold shutdown conditions on August 24, and August 25,respectively. If hundred incidents or more are within the 6965, the yellow perimeter indicates from where events are excluded.
Therefore, on 665 26, the operator declared all safety-related SSCs of Units 1 and 2 inoperable for technical specifications purposes. Here you only see the latest event report.
Trial application of guidelines for nuclear plant response to..|INIS
The map shows a maximum of incidents. Last update on 01 Dec ERF affiliation: Thu, ERF description: Cook and Palisades in Michigan. The CAL confirmed the understanding that the plant operator was not to enter Modes 1 through 4 until the NRC has completed its safety evaluation and reported its conclusion to the plant operator in writing. Amplifying information concerning the NRC actions in response to the August 23, earthquake in Virginia is available in the NRC’s website at the following link: To demonstrate that no functional damage occurred as a result of the earthquake and that it was safe to operate the facility without undue risk to the health and safety of the public, the North Anna Power Station operator performed a number of inspections, tests, and analyses, consistent with EPRI NP, “Guidelines for Nuclear Plant Response to an Earthquake.
The plant exited the NOUE on the afternoon of August 24 after completing all walkdown inspections of the equipment that is most susceptible to seismic activity.
Cynthia Jones ERF address: All of these plants exited their NOUE declarations after completing inspections and receiving confirmation of normal conditions.
eprl To demonstrate that no functional damage occurred as a result of the earthquake and that it was safe to operate the facility without undue risk to the health and safety of the public, epir North Anna Power Station operator performed a number of inspections, tests, and analyses under the oversight of the United States Nuclear Regulatory Commission. None of the aftershocks resulted in any impact to plant structures, systems, or components. On August 23,an earthquake measuring 5.
Due to additional seismic activity, North Anna declared an NOUE on two other occasions with the final one being declared on September 1, Contact us if a location is wrong.
On August 29, the NRC dispatched an Augmented Inspection Team AIT to the North Anna Power Station to assess the circumstances surrounding the total loss of offsite power and dual unit reactor trip, the emergency diesel generator coolant leak and other plant equipment issues. Here you only see the latest event report ERF send date: Sometimes there are multiple event reports, updating the rating, the event description.
The NRC technical evaluation of restart readiness can be viewed at the following links: