ML043380105
| ML043380105 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 01/03/2005 |
| From: | Olshan L NRC/NRR/DLPM/LPD2 |
| To: | NRC/NRR/DLPM |
| Olshan L N, NRR/DLPM, 415-1419 | |
| References | |
| TAC MB8086, TAC MB8087, TAC MB8088 | |
| Download: ML043380105 (4) | |
Text
January 3, 2005 LICENSEE:
Duke Energy Corporation FACILITY:
Oconee Nuclear Station, Units 1, 2, and 3
SUBJECT:
SUMMARY
OF NOVEMBER 17, 2004, MEETING TO DISCUSS LICENSE AMENDMENT REQUEST FOR DIGITAL UPGRADE OF RPS/ESPS (TAC NOS.
MB8086, MB8087, AND MB8088)
On November 17, 2004, a Category 1 meeting was held between the Nuclear Regulatory Commission (NRC) and representatives from Duke Energy Corporation (the licensee) at NRC Headquarters, One White Flint North, 11555 Rockville Pike, Rockville, Maryland. The purpose of the meeting was to discuss a license amendment request that the licensee will be submitting to accommodate the digital upgrade of the Oconee Reactor Protective System/Engineered Safeguards Protective System (RPS/ESPS). A list of attendees is provided in Attachment 1. are the slides presented by the licensee during the meeting.
By letter dated March 20, 2003, the licensee submitted a defense-in-depth and diversity (D3) analysis to support the digital upgrade of RPS/ESPS. In the event of a common mode failure of the digital RPS/ESPS, the D3 analysis concluded that all transients and accidents, with the exception of the large break loss-of-coolant (LOCA) accident, could be adequately mitigated assuming reasonable operator actions. The D3 analysis took credit for leakage detection systems to eliminate consideration of the large break LOCA. Prior to the meeting, the NRC staff had informed the licensee that this application of leakage detection systems could not be approved at this time. In addition, the Electric Power Research Institute (EPRI) is preparing a risk-informed methodology that may be able to demonstrate that the diverse low-pressure injection actuation system (DLPIAS) does not have to be installed. However, it is not certain that the NRC staff will accept the leakage-detection-system approach or the EPRI methodology prior to the planned implementation of the digital RPS/ESPS modification, which is scheduled to begin in Fall 2006. Therefore, the licensee is designing a DLPIAS.
The licensee presented the design requirements that the licensee believes are appropriate for the DLPIAS. These design requirements are listed on pages 9, 10, and 11 of Attachment 2.
The NRC staff concurred that these design requirements were appropriate for the DLPIAS.
/RA/
Leonard N. Olshan, Senior Project Manager Project Directorate II-1 Division of Project Licensing Management Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-0287 Attachments: As stated cc w/atts: See next page
LICENSEE:
Duke Energy Corporation FACILITY:
Oconee Nuclear Station, Units 1, 2, and 3
SUBJECT:
SUMMARY
OF NOVEMBER 17, 2004, MEETING TO DISCUSS LICENSE AMENDMENT REQUEST FOR DIGITAL UPGRADE OF RPS/ESPS (TAC NOS.
MB8086, MB8087, AND MB8088)
On November 17, 2004, a Category 1 meeting was held between the Nuclear Regulatory Commission (NRC) and representatives from Duke Energy Corporation (the licensee) at NRC Headquarters, One White Flint North, 11555 Rockville Pike, Rockville, Maryland. The purpose of the meeting was to discuss a license amendment request that the licensee will be submitting to accommodate the digital upgrade of the Oconee Reactor Protective System/Engineered Safeguards Protective System (RPS/ESPS). A list of attendees is provided in Attachment 1. are the slides presented by the licensee during the meeting.
By letter dated March 20, 2003, the licensee submitted a defense-in-depth and diversity (D3) analysis to support the digital upgrade of RPS/ESPS. In the event of a common mode failure of the digital RPS/ESPS, the D3 analysis concluded that all transients and accidents, with the exception of the large break loss-of-coolant (LOCA) accident, could be adequately mitigated assuming reasonable operator actions. The D3 analysis took credit for leakage detection systems to eliminate consideration of the large break LOCA. Prior to the meeting, the NRC staff had informed the licensee that this application of leakage detection systems could not be approved at this time. In addition, the Electric Power Research Institute (EPRI) is preparing a risk-informed methodology that may be able to demonstrate that the diverse low-pressure injection actuation system (DLPIAS) does not have to be installed. However, it is not certain that the NRC staff will accept the leakage-detection-system approach or the EPRI methodology prior to the planned implementation of the digital RPS/ESPS modification, which is scheduled to begin in Fall 2006. Therefore, the licensee is designing a DLPIAS.
The licensee presented the design requirements that the licensee believes are appropriate for the DLPIAS. These design requirements are listed on pages 9, 10, and 11 of Attachment 2.
The NRC staff concurred that these design requirements were appropriate for the DLPIAS.
/RA/
Leonard N. Olshan, Senior Project Manager Project Directorate II-1 Division of Project Licensing Management Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-0287 Attachments: As stated cc w/atts: See next page Distribution:
PUBLIC RidsAcrsAcnwMailCenter CHawes RMartin PDIV-1 R/F RidsNrrDlpm CDoutt PRebstock LOshan RidsNrrDlpmLPDII(EHackett)
PLoeser CSchulten RidsOgcRp RidsNrrDlpmLPDII-1(JNakoski)
EMarinos MStutzke JDixon-Herrity RidsRgn2MailCenter Accession Number: ML043380105 OFFICE PDII-1/PM PDII-1/LA EEIB/SC PDII-1/SC NAME LOlshan CHawes EMarinos JNakoski DATE 1/3/05 12/20/04 12/6/04 1/3/05 OFFICIAL RECORD COPY LIST OF ATTENDEES MEETING TO DISCUSS LICENSE AMENDMENT REQUEST FOR DIGITAL UPGRADE OF RPS/ESPS NOVEMBER 17, 2004 NRC C. Doutt P. Loeser E. Marinos R. Martin L. Olshan P. Rebstock C. Schulten M. Stutzke DUKE R. Cornett G. Davenport M. Miller D. Repko B. Shingleton B. Thomas Other P. Berry, Framatome P. Liddle, Framatome J. Mauck, Framatome C. Brinkman, Westinghouse R. Torok, Electric Power Research Institute
Oconee Nuclear Station, Units 1, 2, and 3 cc:
Ms. Lisa F. Vaughn Duke Energy Corporation Mail Code - PB05E 422 S. Church St.
P.O. Box 1244 Charlotte, NC 28201-1244 Ms. Anne W. Cottingham, Esq.
Winston and Strawn 1400 L St, NW Washington, DC 20005 Manager, LIS NUS Corporation 2650 McCormick Dr., 3rd Floor Clearwater, FL 34619-1035 Senior Resident Inspector U.S. Nuclear Regulatory Commission 7812B Rochester Highway Seneca, SC 29672 Mr. Henry Porter, Director Division of Radioactive Waste Management Bureau of Land and Waste Management Dept. of Health and Env. Control 2600 Bull St.
Columbia, SC 29201-1708 Mr. Michael A. Schoppman Framatome ANP 1911 North Ft. Myer Dr.
Suite 705 Rosslyn, VA 22209 Mr. B. G. Davenport Regulatory Compliance Manager Oconee Nuclear Site Duke Energy Corporation ON03RC 7800 Rochester Highway Seneca, SC 29672 Ms. Karen E. Long Assistant Attorney General NC Department of Justice P.O. Box 629 Raleigh, NC 27602 Mr. R. L. Gill, Jr.
Manager - Nuclear Regulatory Issues and Industry Affairs Duke Energy Corporation 526 S. Church St.
Mail Stop EC05P Charlotte, NC 28202 Mr. Richard M. Fry, Director Division of Radiation Protection NC Dept of Environment, Health, & Natural Resources 3825 Barrett Dr.
Raleigh, NC 27609-7721 Mr. Peter R. Harden, IV VP-Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Road 12th Floor Charlotte, NC 28210 Mr. Henry Barron Group Vice President, Nuclear Generation and Chief Nuclear Officer P.O. Box 1006-EC07H Charlotte, NC 28201-1006 Mr. Ronald A. Jones Vice President, Oconee Site Duke Energy Corporation 7800 Rochester Highway Seneca, SC 29672