EPRI NP 6695 PDF

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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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To demonstrate that no functional damage occurred as a result of the earthquake and that it was safe 669 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 under the oversight of the United States Nuclear Regulatory Commission.

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Sometimes jp are multiple event reports, updating the rating, the event description. Thu, ERF description: Therefore, on August 26, the operator declared all safety-related SSCs of Units 1 and 2 inoperable for technical specifications purposes. The NRC technical n; of restart readiness can be viewed at the following links: 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: Cook and Palisades in Michigan.

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All of these plants exited their NOUE declarations after completing inspections and receiving confirmation of normal conditions. If hundred incidents or more are within the map, the yellow perimeter indicates from where events are excluded.

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. Cynthia Jones ERF address: Here you only see the latest event report. Units 1 and 2 entered cold shutdown conditions on August 24, and August 25,respectively.

On August 23,an earthquake measuring 5. 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.

The map shows a maximum of incidents. A backup, “station blackout” diesel generator was started to assume the loads that were being supplied by the 2H EDG.

EPRI-NP | Guidelines for Nuclear Plant Response To an Earthquake | Document Center, Inc.

The inspections found that the equipment was in satisfactory condition. None of the aftershocks resulted in any impact to plant structures, systems, or components. 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.

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Due to additional seismic activity, North Anna declared an NOUE on two other occasions with the final one eri declared 665 September 1, Contact us if a location is wrong.

Drag or zoom the map to explore different areas. Last update on 01 Dec ERF affiliation: Here you only see the latest event report ERF send date: 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.

The CAL confirmed the understanding that the plant operator was not to enter Modes 1 through 4 until the NRC has completed its eprk evaluation and reported its conclusion to the plant operator in writing.