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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The inspections found that the equipment was in satisfactory condition. The NRC technical evaluation of restart readiness can be viewed at the following links: Here you only see the latest event report ERF send date: Units 1 and 2 entered cold shutdown conditions on August 24, and August 25,respectively.
Cynthia Jones ERF address: Therefore, on August 26, the operator declared all safety-related SSCs of Units 1 and 2 inoperable for technical specifications purposes. The CAL confirmed the understanding that the 665 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.
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. Thu, ERF description: 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.
If hundred incidents or more are within the map, the yellow perimeter indicates from where events are excluded. Here you only see the latest event report.
Contact us if a location is wrong. All of these plants exited their NOUE declarations after completing inspections and receiving confirmation 6695 normal conditions.
On August 23,an earthquake measuring 5. On August 29, the NRC dispatched an Augmented Inspection Team AIT to the North Anna Power Station to assess the circumstances peri the total loss of offsite power and dual unit reactor trip, the emergency diesel generator coolant leak and other plant equipment issues.
Drag or zoom the map to explore different areas. None of the aftershocks resulted in any impact to plant structures, systems, or components.
EPRI-NP | Guidelines for Nuclear Plant Response To an Earthquake | Document Center, Inc.
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: A backup, “station blackout” diesel generator was started to assume the loads that were being supplied by the 2H EDG.
The plant exited the NOUE on the afternoon of August 24 after completing all walkdown wpri of the equipment that is most susceptible to seismic activity. 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 under the oversight of the United States Nuclear Regulatory Commission.
Sometimes there are multiple event reports, updating the rating, the event description.
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Last update on 01 Dec ERF affiliation: Cook and Palisades in Michigan. The map shows a maximum of incidents. Due to additional seismic activity, North Anna declared an NOUE on two other occasions with the final one being declared on September epti,