ML15112A486
| ML15112A486 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 05/25/1999 |
| From: | Labarge D NRC (Affiliation Not Assigned) |
| To: | Mccollum W DUKE POWER CO. |
| Shared Package | |
| ML15112A487 | List: |
| References | |
| TAC-MA4713, TAC-MA4714, TAC-MA4715, NUDOCS 9906020042 | |
| Download: ML15112A486 (3) | |
Text
May 25, 1999 Mr. W. R. McCollum, Jr.
Distribution e-mail RCN - SE only Vice President, Oconee Site Docket File OGC Duke Energy Corporation PUBLIC ACRS P. 0. Box 1439 PD 11-1 R/F C. Ogle, RII Seneca, SC 29679 W. Jensen L. Plisco, RII R. Ingram
SUBJECT:
OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 RE: SAFETY EVALUATION FOR REVISION 1 TO TOPICAL REPORT DPC-NE-3005-P, "UFSAR CHAPTER 15 TRANSIENT AND ACCIDENT ANALYSIS METHODOLOGY" (TAC NOS. MA4713, MA4714, AND MA4715)
Dear Mr. McCollum:
The NRC staff has completed its review of Revision 1 to Topical Report DPC-NE-3005-P, "UFSAR Chapter 15 Transient Analysis Methodology" that was submitted by letter dated February 1, 1999. The revision addresses issues and minor corrections resulting from the staff's previous review of the topical report that was included in the safety evaluation dated October 1, 1998. The principal issue addressed by the change involves credit for main feedwater system isolation that is no longer assumed in the analysis of main steam line breaks.
Since isolation of main feedwater at Oconee is not accomplished with safety related equipment, the staff requested that the analyses be preformed with the assumption of continued feedwater.
As described in the enclosed SER, we conclude that the topical report adequately addresses the issues raised in the staff's previous safety evaluation. The methodology in DPC-NE-3005-P, Revision 1 is, therefore, approved and found acceptable for performing the Updated Final Safety Analysis Report (UFSAR) Chapter 15 transient and accident analysis for Oconee Units 1, 2, and 3. The plant analyses contained in the topical report are typical of those that will be incorporated into the present UFSAR. For subsequent core reloads or other plant modifications, you should justify that the analyses in the topical report bound the results that would be obtained for the new plant condition or perform new analyses that are conservative for that purpose.
Sincerely, original signed by:
David E. LaBarge, Senior Project Manager, Section 1 9906020042 99052 Project Directorate II PDR ADOCK 05000269 Division of Licensing Project Management POR Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287
Enclosure:
Safety Evaluation cc w/encl: See next page Document Name: OCOA4713.SE.WPD To receive a copy of this document, indicate in the box:
"C" = Copy without attachment/enclosure "E" = Copy with attachment/enclosure "N" = No copy OFFICE PM:P L
LA:PDII/S1 SC:PDII/S1 NAME DLa rge:cn CHawes p
REmch j
,DATE
/, I1 /99
/
/99 F/ 2J799 OFFICIAL RECORD COPY
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 25, 1999 Mr. W. R. McCollum, Jr.
Vice President, Oconee Site Duke Energy Corporation P. 0. Box 1439 Seneca, SC 29679
SUBJECT:
OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 RE: SAFETY EVALUATION FOR REVISION 1 TO TOPICAL REPORT DPC-NE-3005-P, "UFSAR CHAPTER 15 TRANSIENT AND ACCIDENT ANALYSIS METHODOLOGY" (TAC NOS. MA4713, MA4714, AND MA4715)
Dear Mr. McCollum:
The NRC staff has completed its review of Revision 1 to Topical Report DPC-NE-3005-P, "UFSAR Chapter 15 Transient Analysis Methodology" that was submitted by letter dated February 1, 1999. The revision addresses issues and minor corrections resulting from the staff's previous review of the topical report that was included in the safety evaluation dated October 1, 1998. The principal issue addressed by the change involves credit for main feedwater system isolation that is no longer assumed in the analysis of main steam line breaks.
Since isolation of main feedwater at Oconee is not accomplished with safety related equipment, the staff requested that the analyses be preformed with the assumption of continued feedwater.
As described in the enclosed SER, we conclude that the topical report adequately addresses the issues raised in the staff's previous safety evaluation. The methodology in DPC-NE-3005-P, Revision 1 is, therefore, approved and found acceptable for performing the Updated Final Safety Analysis Report (UFSAR) Chapter 15 transient and accident analysis for Oconee Units 1, 2, and 3. The plant analyses contained in the topical report are typical of those that will be incorporated into the present UFSAR. For subsequent core reloads or other plant modifications, you should justify that the analyses in the topical report bound the results that would be obtained for the new plant condition or perform new analyses that are conservative for that purpose.
Sincerely, David E. LaBarge, Senior Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287
Enclosure:
Safety Evaluation cc w/encl: See next page
Oconee Nuclear Station cc:
Ms. Lisa F. Vaughn Mr. J. E. Burchfield Legal Department (PBO5E)
Compliance Manager Duke Energy Corporation Duke Energy Corporation 422 South Church Street Oconee Nuclear Site Charlotte, North Carolina 28201-1006 P. 0. Box 1439 Seneca, South Carolina 29679 Anne Cottington, Esquire Winston and Strawn Ms. Karen E. Long 1400 L Street, NW.
Assistant Attorney General Washington, DC 20005 North Carolina Department of Justice Mr. Rick N. Edwards P. 0. Box 629 Framatome Technologies Raleigh, North Carolina 27602 Suite 525 1700 Rockville Pike L. A. Keller Rockville, Maryland 20852-1631 Manager - Nuclear Regulatory Licensing Manager, LIS Duke Energy Corporation NUS Corporation 526 South Church Street 2650 McCormick Drive, 3rd Floor Charlotte, North Carolina 28201-1006 Clearwater, Florida 34619-1035 Mr. Richard M. Fry, Director Senior Resident Inspector Division of Radiation Protection U. S. Nuclear Regulatory North Carolina Department of Commission Environment, Health, and 7812B Rochester Highway Natural Resources Seneca, South Carolina 29672 3825 Barrett Drive Raleigh, North Carolina 27609-7721 Virgil R. Autry, Director Division of Radioactive Waste Management Mr. Steven P. Shaver Bureau of Land and Waste Management Senior Sales Engineer Department of Health and Environmental Westinghouse Electric Company Control 5929 Carnegie Blvd.
2600 Bull Street Suite 500 Columbia, South Carolina 29201-1708 Charlotte, North Carolina 28209 County Supervisor of Oconee County WaShalla, South Carolina 29621 Ms. Karen-E.-Long