ML061500024

Susquehanna, Units 1 and 2, RAI, Amendment Application to Revise Technical Specifications on DC Electrical System Requirements

ML061500024
Person / Time
Site:	Susquehanna
Issue date:	05/31/2006
From:	Guzman R V NRC/NRR/ADRO/DORL/LPLA
To:	McKinney B T Susquehanna
tsw1
References
TAC MC5153, TAC MC5154
Download: ML061500024 (7)

Text

May 31, 2006Mr. Britt T. McKinneySr. Vice President and Chief Nuclear Officer PPL Susquehanna, LLC 769 Salem Blvd., NUCSB3Berwick, PA 18603-0467

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION (RAI) - SUSQUEHANNA STEAMELECTRIC STATION, UNITS 1 AND 2 (SSES 1 AND 2) - REQUEST FOR ADDITIONAL INFORMATION REGARDING AMENDMENT APPLICATION TO REVISE TECHNICAL SPECIFICATIONS ON DC ELECTRICAL SYSTEMREQUIREMENTS (TAC NOS. MC5153 AND MC5154)

Dear Mr. McKinney:

On October 19, 2005, the Nuclear Regulatory Commission (NRC) requested additionalinformation regarding your submittal dated November 9, 2004, concerning your proposed Technical Specification (TS) changes based on TS Task Force (TSTF) Change Traveler TSTF-360, Revision 1, to the SSES 1 and 2 TS sections: TS 3.8.4, "DC Sources - Operating," TS 3.8.5, "DC Sources - Shutdown," TS 3.8.6, "Battery Cell Parameters," and TS 5.5, "Programand Manuals." You provided that information in a letter dated December 5, 2005. The NRC staff has determined that additional information contained in the enclosure to this letter is needed to complete its review. The questions were discussed with your staff during a teleconference on April 7, 2006. As agreed to by your staff, we request you respond within 30 days of the date of this letter. If you have any questions, please contact me at 301-415-1030.Sincerely,/RA/Richard V. Guzman, Project ManagerPlant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket Nos. 50-387 and 50-388

Enclosure:

RAIcc w/encl: See next page

ML061500024

• See RAI memoOFFICELPL1-1/PMLPL1-1/LAEEEB/BCLPL1-1/BCNAMERGuzmanSLittleGWilson*RLauferDATE 5/30/06 5/30/06 5/31/06 SE DTD 2/24/06 5/31/06 Susquehanna Steam Electric Station, Unit Nos. 1 and 2 cc:

Robert A. SacconeVice President - Nuclear Operations PPL Susquehanna, LLC 769 Salem Blvd., NUCSB3Berwick, PA 18603-0467Aloysius J. Wrape, IIIGeneral Manager - Performance Improvement and Oversight PPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179Terry L. HarpsterGeneral Manager - Plant Support PPL Susquehanna, LLC 769 Salem Blvd., NUCSA4Berwick, PA 18603-0467Rocco R. SgarroManager - Nuclear Regulatory Affairs PPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179Walter E. MorrisseySupervising Engineer Nuclear Regulatory Affairs PPL Susquehanna, LLC 769 Salem Blvd., NUCSA4Berwick, PA 18603-0467Michael H. CrowthersSupervising Engineer Nuclear Regulatory Affairs PPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179Steven M. CookManager - Quality Assurance PPL Susquehanna, LLC 769 Salem Blvd., NUCSB2Berwick, PA 18603-0467Luis A. RamosCommunity Relations Manager, Susquehanna PPL Susquehanna, LLC 634 Salem Blvd., SSO Berwick, PA 18603-0467Bryan A. Snapp, EsqAssoc. General Counsel PPL Services Corporation Two North Ninth Street, GENTW3 Allentown, PA 18101-1179Supervisor - Document Control ServicesPPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179Richard W. OsborneAllegheny Electric Cooperative, Inc.

212 Locust Street P.O. Box 1266 Harrisburg, PA 17108-1266Director, Bureau of Radiation ProtectionPennsylvania Department of Environmental Protection Rachel Carson State Office Building P.O. Box 8469 Harrisburg, PA 17105-8469Senior Resident InspectorU.S. Nuclear Regulatory Commission P.O. Box 35, NUCSA4 Berwick, PA 18603-0035Regional Administrator, Region 1U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406Board of SupervisorsSalem Township

P.O. Box 405 Berwick, PA 18603-0035 Susquehanna Steam Electric Station, Unit Nos. 1 and 2 cc:Dr. Judith JohnsrudNational Energy Committee Sierra Club 443 Orlando Avenue State College, PA 16803 EnclosureREQUEST FOR ADDITIONAL INFORMATIONREGARDING AMENDMENT APPLICATION TO REVISE TECHNICAL SPECIFICATIONSON DC ELECTRICAL SYSTEM REQUIREMENTS SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 (SSES 1 AND 2)PPL SUSQUEHANNA, LLCDOCKET NOS. 50-387 AND 50-388The Nuclear Regulatory Commission (NRC) staff is reviewing the proposed license amendmentfor PPL Susquehanna, LLC (PPL, the licensee) to Facility Operating License No. NPF-14 andNPF-22 related to proposed changes based on TS Task Force (TSTF) Change Traveler TSTF-360, Revision 1, to the SSES 1 and 2 Technical Specification (TS) sections: TS 3.8.4, "DC Sources - Operating," TS 3.8.5, "DC Sources - Shutdown," TS 3.8.6, "Battery CellParameters," and TS 5.5, "Program and Manuals." The NRC staff has determi ned theadditional information requested below will be needed to complete its review.1)Specific gravity monitoring is used to measure the strength of a battery cell's electrolyte,which is an important component of the battery's chemical reaction, and provides an indication of the battery's state-of-charge. Whereas, float current monitoring may or may not provide an accurate indiction of the battery's state-of-charge. Float current monitoring is based on a calculation that is dependent on several variables. The NRC staff has a concern with two variables of this calculation: the applied charging voltage and cell resistance. A change in either of these variables may provide a false indication of the battery's state-of-charge. Provide assurance that float current monitoring will provide an accurate indiction of the battery's state-of-charge.2)The battery pilot cell is representative of the average battery cell in the battery. Provideassurance that a battery with a battery pilot cell with a voltage of 2.07 volts or slightly greater will remain capable of performing its minimum designed function.3)As mentioned in No. 2, the battery pilot cell is representative of the average battery cellin the battery. Provide assurance that a battery with a battery pilot cell electrolyte temperature slightly greater than or equal to the minimum established design limit willremain capable of performing its minimum designed function.4)Consistency with the Institute of Electrical and Electronics Engineers (IEEE) Standard450-1995, "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications," was used throughout your submittal as the justification for approval. The most recent version of IEEE Standard 450 that has been endorsed by the NRC through Regulatory Guides (RGs) is IEEEStandard 450-1975. The RGs of mention are: RG 1.128, "Installation, Design, andInstallation of Large Lead Storage Batteries for Nuclear Power Plants," and RG 1.129, "Maintenance, Testing, and Replacement of Large Lead Storage Batteries for NuclearPower Plants." a.Provide a plant-specific technical justification for each proposed change in lieu ofreferencing consistency with the IEEE Standard 450-1995.b.Provide a copy of the proposed battery monitoring and maintenance programidentified in TS 5.5.14.