ML033490002
| ML033490002 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 12/15/2003 |
| From: | Sean Peters NRC/NRR/DLPM/LPD2 |
| To: | Jamil D Duke Energy Corp |
| Peters, S, NRR/DLPM/301-415-1842 | |
| References | |
| TAC MC0498, TAC MC0499 | |
| Download: ML033490002 (6) | |
Text
December 15, 2003 Mr. D. M. Jamil Vice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Road York, South Carolina 29745
SUBJECT:
CATAWBA NUCLEAR STATION, UNITS 1 AND 2 RE: REQUEST FOR ADDITIONAL INFORMATION (TAC NOS. MC0498 AND MC0499)
Dear Mr. Jamil:
By letter dated August 19, 2003, you submitted an application for amendment of the Technical Specifications (TS) for the Catawba Nuclear Station, Units 1 and 2, to revise the TS requirements for the Containment Pressure Control System. The U. S. Nuclear Regulatory Commission technical staff has reviewed the application and has determined that additional information is required, as identified in the Enclosure.
We discussed these issues with your staff on December 11, 2003. Your staff indicated that you would attempt to provide your response by January 15, 2004.
Please contact me at (301) 415-1842, if you have any other questions on these issues.
Sincerely,
/RA/
Sean E. Peters, Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-413 and 50-414
Enclosure:
As stated cc w/encl: See next page
ML033490002 NRR-088 OFFICE PDII-1/PM PDII-1/LA PDII-1/SC NAME SPeters CHawes JNakoski DATE 12/12/03 12/12/03 12/12/03
Enclosure REQUEST FOR ADDITIONAL INFORMATION DUKE POWER COMPANY CATAWBA NUCLEAR STATION, UNITS 1 AND 2 DOCKET NOS. 50-413 AND 50-414 The Nuclear Regulatory Commission (NRC) staff has reviewed the licensees submittal dated August 19, 2003, regarding proposed changes to the Technical Specifications for the Containment Pressure Control System (CPCS). The NRC staff has identified the following information that is needed to enable the continuation of its review.
1.
Title 10 of the Code of Federal Regulations, Section 50.36(c)(1)(ii)(A), defines limiting safety system setting (LSSS) as a setting that must be so chosen that automatic protective action will correct the abnormal situation before a safety limit is exceeded.
The improved technical specifications (TS) Bases define the allowable value (AV) to be equivalent to the LSSS and defines that a channel is operable if the trip setpoint is found not to exceed the AV during channel operational testing. Any request for safety-related instrument setpoint modification should provide a reference to the NRC approved setpoint methodology for the licensed plant as the basis for the modification. Provide the setpoint methodology reference for this TS amendment request. If you use method 3 specified in ISA S67.04.02, then confirm that a check calculation is performed to account for all loop uncertainty not measured during the Channel Operational Test/Channel Functional Test. Provide a sample calculation to demonstrate this.
- 2.
In the submittal dated August 19, 2003, Attachment 3, Page 3, it states that the proposed solution to the CPCS circuit fluctuation problem will: 1) widen the deadband for the CPCS start permissive, and 2) narrow the span viewed by the CPCS pressure instrument. The proposed CPCS start permissive AV changed from 0.45 psid to
1.0 psid, and the Nominal Trip Setpoint changed from 0.4 psid to 0.9 psid.
Additionally, the CPCS termination Nominal Trip Setpoint changed from 0.3 psid to 0.35 psid. Provide a summary of the setpoint calculation to demonstrate that the instrument uncertainties of the new pressure transmitters for the CPCS start permissive circuit will not affect any of the safety significant functions (i.e. to start containment spray), and the termination uncertainties will not cause the containment pressure to fall to the negative region.
3.
Please discuss any effects that the proposed changes will have on the containment safety analyses. If there are no changes to the containment safety analyses, please explain why this is so.
Catawba Nuclear Station cc:
Lee Keller Regulatory Compliance Manager Duke Energy Corporation 4800 Concord Road York, South Carolina 29745 Ms. Lisa F. Vaughn Duke Energy Corporation Mail Code - PB05E 422 South Church Street P. O. Box 1244 Charlotte, North Carolina 28201-1244 Anne Cottingham, Esquire Winston and Strawn 1400 L Street, NW Washington, DC 20005 North Carolina Municipal Power Agency Number 1 1427 Meadowwood Boulevard P. O. Box 29513 Raleigh, North Carolina 27626 County Manager of York County York County Courthouse York, South Carolina 29745 Piedmont Municipal Power Agency 121 Village Drive Greer, South Carolina 29651 Ms. Karen E. Long Assistant Attorney General North Carolina Department of Justice P. O. Box 629 Raleigh, North Carolina 27602 NCEM REP Program Manager 4713 Mail Service Center Raleigh, North Carolina 27699-4713 North Carolina Electric Membership Corporation P. O. Box 27306 Raleigh, North Carolina 27611 Senior Resident Inspector U. S. Nuclear Regulatory Commission 4830 Concord Road York, South Carolina 29745 Henry Porter, Assistant Director Division of Waste Management Bureau of Land and Waste Management Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201-1708 Mr. Michael T. Cash Manager - Nuclear Regulatory Licensing Duke Energy Corporation 526 South Church Street Charlotte, North Carolina 28201-1006 Saluda River Electric P. O. Box 929 Laurens, South Carolina 29360 Mr. Peter R. Harden, IV VP-Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Road 12th Floor Charlotte, North Carolina 28210 Mr. T. Richard Puryear Owners Group (NCEMC)
Duke Energy Corporation 4800 Concord Road York, South Carolina 29745
Catawba Nuclear Station cc:
Richard M. Fry, Director Division of Radiation Protection North Carolina Department of Environment, Health, and Natural Resources 3825 Barrett Drive Raleigh, North Carolina 27609-7721 Mary Olson Director of the Southeast Office Nuclear Information and Resource Service 729 Haywood Road, 1-A P. O. Box 7586 Asheville, North Carolina 28802