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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On August 23,an earthquake measuring 5. Units 1 and 2 entered cold shutdown conditions on August 24, and August 25,respectively.
Trial application of guidelines for nuclear plant response to..|INIS
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.
Cook and Palisades in Michigan. rpri
All of these plants exited their NOUE declarations after completing inspections and receiving confirmation of normal conditions. 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.
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 inspections of the equipment that is most susceptible to seismic activity.
The inspections found that the equipment was in satisfactory condition. Due to additional seismic activity, North Anna declared an NOUE on two other occasions with the final one being declared on September 1, None of the aftershocks resulted in any impact to plant structures, systems, or components.
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.
Therefore, on August 26, the operator declared all safety-related SSCs of Units 1 and 2 inoperable for technical specifications purposes. To demonstrate that no functional damage occurred as a result of the earthquake and that it was hp 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.
EPRI-NP | Guidelines for Nuclear Plant Response To an Earthquake | Document Center, Inc.
The CAL confirmed the understanding that the plant operator 695 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. The NRC technical evaluation 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 epro the NRC’s website at the following link: Sometimes there are multiple event reports, updating the rating, the event description.
Here you only see the latest event report. Here you only see the latest event report ERF send date: Thu, ERF description: Cynthia Jones ERF address: Last update on 01 Dec ERF affiliation: Contact us if epro location is wrong.
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