ML15238A333
| ML15238A333 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 12/03/1996 |
| From: | Varga S NRC (Affiliation Not Assigned) |
| To: | Hampton J DUKE POWER CO. |
| References | |
| NUDOCS 9612060041 | |
| Download: ML15238A333 (3) | |
Text
December 3, 1996 Mr. J. W. Hampton DISTRIBUTION ACRS Vice President, Oconele Site, Docket File SVarga.
Duke Power Company PUBLIC EMerschoff, RH P. 0. Box 1439 PDLI-2 'Reading LWert, RII Seneca,.SC ;29679 9GC2
SUBJECT:
OCONEE INTEGRATED ENGINEERED SAFEGUARDS TEST
Dear Mr. Hampton:
By letter dated July 8, 1996; the staff issued Draft Reports evaluating the Oconee Emergency Electrical.Distribution System. In this document, the staff indicated several concerns related to the design of the emergency power system.
By letter dated November 21, 1996, you briefly described six tests that you have designed to "demonstrate that the current testing and design analyses provide a high level of confidence that the Oconee Nuclear Station emergency power system can perform its intended safety function. In addition to demonstrating design basis requirements, certain portions of.the.tests will also exercise the emergency power system under the most likely scenarios for a three unit loss of offsite power."
Accordingly, you have elected to perform a series of tests to address our concerns mentioned in the NRC Draft Reports in accordance with special procedure(s) that are being written. As has been discussed with your staff, we request that you provide us with the results of your safety determinations relative to the conduct of the tests.
Include those special considerations that you have taken to address shutdown risks that could adversely affect reactor pressure, reactor coolant temperature, reactor vessel water level, and shutdown margin, and contingencies.
Please submit this information no less than 5 working days prior to commencement of the tests.
Sincerely, Original signed by:
Steven A. Varga, Director Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270 and 50-287 cc:
See next page
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NUCLEAR REGULATORY COMMISSION
-t WASHINGTON, D.C. 20555-0001 December 3, 1996 Mr. J. W. Hampton Vice President, Oconee Site Duke Power Company P. 0. Box 1439 Seneca, SC 29679
SUBJECT:
OCONEE INTEGRATED ENGINEERED SAFEGUARDS TEST
Dear Mr. Hampton:
By letter dated July 8, 1996, the staff issued Draft Reports evaluating the Oconee Emergency Electrical Distribution System. In this document, the staff indicated several concerns related to the design of the emergency power system.
By letter dated November 21, 1996, you briefly described six tests that you have designed to "demonstrate that the current testing and design analyses provide a high level of confidence that the Oconee Nuclear Station emergency power system can perform its intended safety function. In addition to demonstrating design basis requirements, certain portions of the tests will also exercise the emergency power system under the most likely scenarios for a three unit loss of offsite power."
Accordingly, you have elected to perform a series of tests to address our concerns mentioned in the NRC Draft Reports in accordance with special procedure(s) that are being written. As has been discussed with your staff, we request that you provide us with the results of your safety determinations relative to the conduct of the tests.
Include those special considerations that you have taken to address shutdown risks that could adversely affect reactor pressure, reactor coolant temperature, reactor vessel water level, and shutdown margin, and contingencies.
Please submit this information no less than 5 working days prior to commencement of the tests.
Sincerely, ven.argaDi tor Division of Reactor jects -
I/II Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270 and 50-287 cc:
See Next page
Mr. J. W. Hampton Duke Power Company Oconee Nuclear Station cc:
Mr. Paul R. Newton Mr. Ed Burchfield Legal Department (PB05E)
Compliance Duke Power Company Duke Power Company 422 South Church Street Oconee Nuclear Site Charlotte, North Carolina 28242-0001 P. 0. Box 1439 Seneca, South Carolina 29679 J. Michael McGarry, III, Esquire Winston and Strawn Ms. Karen E. Long 1400 L Street, NW.
Assistant Attorney General Washington, DC 20005 North Carolina Department of Justice Mr. Robert B. Borsum P. 0. Box 629 Framatome Technologies Raleigh, North Carolina 27602 Suite 525 1700 Rockville Pike Mr. G. A. Copp Rockville, Maryland 20852-1631 Licensing -
ECO50 Duke Power Company Manager, LIS 526 South Church Street NUS Corporation Charlotte, North Carolina 28242-0001 2650 McCormick Drive, 3rd Floor Clearwater, Florida 34619-1035 Mr. Dayne H. Brown, Director Division of Radiation Protection Senior Resident Inspector North Carolina Department of U. S. Nuclear Regulatory Commission Environment, Health and Route 2, Box 610 Natural Resources Seneca, South Carolina 29678 P. 0. Box 27687 Raleigh, North Carolina 27611-7687 Regional Administrator, Region II U. S. Nuclear Regulatory Commission 101 Marietta Street, NW. Suite 2900 Atlanta, Georgia 30323 Max Batavia, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 County Supervisor of Oconee County Walhalla, South Carolina 29621