ML063600014

Catawba Nuclear Station, Unit 2, Relief, Request to Use a Portion of a Letter Edition of ASME Code (TAC No. MD3841)

ML063600014
Person / Time
Site:	Catawba
Issue date:	01/09/2007
From:	Marinos E C NRC/NRR/ADRO/DORL/LPLII-1
To:	Morris J R Duke Energy Corp
Marinos, EC, NRR/DORL 415-2911
References
TAC MD3841
Download: ML063600014 (6)

Text

January 9, 2007Mr. James R. MorrisVice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Road York, SC 29745

SUBJECT:

CATAWBA NUCLEAR STATION, UNIT 2, REQUEST TO USE A PORTION OFA LATER EDITION AND ADDENDA OF THE ASME CODE DURING THE THIRD 10-YEAR INSERVICE INSPECTION INTERVAL (TAC NO. MD3841)

Dear Mr. Morris:

By letter dated January 31, 2006, Duke Power Company LLC (the licensee), submitted arequest to use a portion of a later edition of the American Society of Mechanical Engineers (ASME), Boiler and Pressure Vessel Code (Code),Section XI requirements for the CatawbaNuclear Station (Catawba), Unit 2. The licensee requested to use the ASME Code,Section XI, 2001 edition, Table IWD-2500-1, Category D-B for Class 3 system pressure testing for Catawba Unit 2 in lieu of the 1998 edition with the 2000 addenda, Table IWD-2500-1, Category D-B for Class 3 system pressure testing for the third 10-year inservice inspection interval. The Nuclear Regulatory Commission (NRC) staff found the proposed alternative to be acceptable. The NRC staff's evaluation and conclusions are contained in the enclosed Safety Evaluation.Sincerely,/RA/Evangelos C. Marinos, ChiefPlant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket No. 50-414

Enclosure:

Safety Evaluationcc w/encl: See next page January 9, 2007Mr. James R. MorrisVice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Road York, SC 29745

SUBJECT:

CATAWBA NUCLEAR STATION, UNIT 2, REQUEST TO USE A PORTION OFA LATER EDITION AND ADDENDA OF THE ASME CODE DURING THE THIRD 10-YEAR INSERVICE INSPECTION INTERVAL (TAC NO. MD3841)

Dear Mr. Morris:

By letter dated January 31, 2006, Duke Power Company LLC (the licensee), submitted arequest to use a portion of a later edition of the American Society of Mechanical Engineers (ASME), Boiler and Pressure Vessel Code (Code),Section XI requirements for the CatawbaNuclear Station (Catawba), Unit 2. The licensee requested to use the ASME Code,Section XI, 2001 edition, Table IWD-2500-1, Category D-B for Class 3 system pressure testing for Catawba Unit 2 in lieu of the 1998 edition with the 2000 addenda, Table IWD-2500-1, Category D-B for Class 3 system pressure testing for the third 10-year inservice inspection interval. The Nuclear Regulatory Commission (NRC) staff found the proposed alternative to be acceptable. The NRC staff's evaluation and conclusions are contained in the enclosed Safety Evaluation.Sincerely,/RA/Evangelos C. Marinos, ChiefPlant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket No. 50-414

Enclosure:

Safety Evaluationcc w/encl: See next pageDISTRIBUTIONPublicRidsRgn2MailCenter(MErnstes)LPL2-1 R/FRidsNrrPMJStang RidsNrrDorlLpl2-1(EMarinos)RidsNrrLAMO'Brien RidsOgcRpRidsAcrsAcnwMailCenter TChan, NRRSCambell, EDO Rgn IIAccession Number: ML063600014 OFFICENRR/LPL2-1/PMNRR/LPL2-1/LANRR/EMCB/BCNRR/LPL2-1/BCNAMEJStang:ncMO'BrienKGrussEMarinos DATE 1/3/2007 1/3/2007 1/82007 1/9/2007 OFFICIAL RECORD COPY Catawba Nuclear Station, Units 1 & 2 Page 1 of 2 cc:Mr. James R. MorrisVice President Catawba Nuclear Station Duke Power Company, LLC 4800 Concord Road York, SC 29745Mr. Randall D. HartRegulatory Compliance Duke Energy Corporation 4800 Concord Road York, South Carolina 29745Ms. Lisa F. VaughnAssociate General Counsel and Managing Attorney Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, North Carolina 28202North Carolina Municipal Power Agency Number 1 1427 Meadowwood Boulevard P.O. Box 29513 Raleigh, North Carolina 27626County Manager of York CountyYork County Courthouse York, South Carolina 29745Piedmont Municipal Power Agency121 Village Drive Greer, South Carolina 29651Mr. Leonard G. GreenAssistant Attorney General North Carolina Department of Justice P.O. Box 629 Raleigh, North Carolina 27602NCEM REP Program Manager4713 Mail Service Center Raleigh, North Carolina 27699-4713 North Carolina Electric Membership Corp.

P.O. Box 27306 Raleigh, North Carolina 27611Senior Resident InspectorU.S. Nuclear Regulatory Commission 4830 Concord Road York, South Carolina 29745Mr. Henry Porter, Assistant DirectorDivision of Waste Management Bureau of Land and Waste Management Dept. of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201-1708Mr. R.L. Gill, Jr., Manager Nuclear Regulatory Issues and Industry Affairs Duke Energy Corporation 526 South Church Street Mail Stop EC05P Charlotte, North Carolina 28202Saluda River ElectricP.O. Box 929 Laurens, South Carolina 29360Mr. Peter R. Harden, IV, Vice PresidentCustomer Relations and Sales Westinghouse Electric Company 6000 Fairview Road 12th Floor Charlotte, North Carolina 28210Mr. T. Richard PuryearOwners Group (NCEMC)

Duke Energy Corporation 4800 Concord Road York, South Carolina 29745Ms. Kathryn B. NolanSenior Counsel Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, NC 28202 Catawba Nuclear Station, Units 1 & 2 Page 2 of 2 cc:

Division of Radiation ProtectionNC Dept. of Environment, Health, and Natural Resources 3825 Barrett Drive Raleigh, North Carolina 27609-7721Mr. Henry BarronGroup Executive and Chief Nuclear Officer P.O. Box 1006-EC07H Charlotte, NC 28201-1006 EnclosureSAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATIONTHIRD 10-YEAR INSERVICE INSPECTION INTERVALDUKE POWER COMPANY LLC.CATAWBA NUCLEAR STATION, UNIT 2DOCKET NO. 50-41

41.0 INTRODUCTION

By letter dated January 31, 2006 (Agencywide Documents Access and Management System(ADAMS), Accession No. ML060410118), Duke Power Company LLC ( the licensee), submitted a request to use a portion of a later edition of the American Society of Mechanical Engineers (ASME), Boiler and Pressure Vessel Code (Code),Section XI requirements for the CatawbaNuclear Station (Catawba), Unit 2. The licensee requested to use the requirements of the 2001 edition of ASME Code,Section XI, Table IWD-2500-1, Category D-B, for Class 3 system pressure testing for Catawba Unit 2 in lieu of the requirements in the 1998 edition with the 2000 addenda, Table IWD-2500-1, Category D-B, for Class 3 system pressure testing for the Catawba Unit 2 third 10-year inservice inspection (ISI) interval.

2.0 REGULATORY EVALUATION

Pursuant to Title 10 of the Code of Federal Regulations (10 CFR), Section 50.55a(g)(4), ASMECode Class 1, 2 and 3 components (including supports) shall meet the requirements, except the design and access provisions and the preservice examination requirements, set forth in the ASME Code,Section XI, "Rules for Inservice Inspection (ISI) of Nuclear Power Plant Components," to the extent practical within the limitations of design, geometry, and materials of construction of the components. The regulations require that inservice examination of components and system pressure tests conducted during the first 10-year interval and subsequent intervals comply with the requirements in the latest edition and addenda of Section XI of the ASME Code incorporated by reference in 10 CFR 50.55a(b) 12 months prior to the start of the 120-month interval, subject to the limitations and modifications listed therein.The third 10-year ISI interval for Catawba Unit 2 began October 15, 2005. The ISI Code ofRecord for the third 10-year interval for Catawba Unit 2 is the 1998 edition with the 2000 addenda. The components (including supports) may meet the requirements set forth in subsequent editions and addenda of the ASME Code incorporated by reference in 10 CFR 50.55a(b) subject to the limitations and modifications listed therein and subject to Commission approval. ISI of ASME Code Class 1, 2, and 3 components is to be performed in accordance with Section XI of the ASME Code and applicable edition and addenda as required by 10 CFR 50.55a(g) except where specific written approval has been granted by the Commission pursuant to 10 CFR 50.55a(g)(4)(iv). Section 50.55a(g)(4)(iv) states: "Inservice examination ofcomponents and system pressure tests may meet the requirements set forth in subsequent editions and addenda that are incorporated by reference in paragraph (b) of this section, and subject to Commission approval. Portions of editions or addenda may be used provided that all related requirements of the respective editions or addenda are met."

3.0 TECHNICAL EVALUATION

The licensee requested to use the requirements of ASME Code,Section XI, 2001 edition, TableIWD-2500-1, Category D-B, for Class 3 system pressure testing for Catawba Unit 2 in lieu of the 1998 edition with the 2000 addenda, Table IWD-2500-1, Category D-B, for Class 3 system pressure testing for the third 10-year ISI interval. The 1998 edition with the 2000 addenda, Table IWD-2500-1, Category D-B, for Class 3 systempressure testing lists two pressure test requirements for Class 3 systems. One of these tests is a system leakage test and one is a system hydrostatic test. The 2001 edition, Table IWD-2500-1, Category D-B, for Class 3 system pressure testing lists one pressure test requirement, which is a system leakage test.The NRC staff confirmed that the application of the requirements of the 2001 edition, TableIWD-2500-1, Category D-B has been approved in 10 CFR 50.55(a). Further, there are no limitations or modifications addressed in 10 CFR 50.55a(b) which would apply to the implementation of the proposed ASME Code requirements. Finally, the Nuclear Regulatory Commission (NRC) staff confirmed that there are no related requirements of the 2001 edition of the ASME Code that would need to be met to support the licensee's request.

4.0 CONCLUSION

The NRC staff concludes that the licensee's request to use the 2001 edition of ASME Code,Section XI, Table IWD-2500-1, Category D-B for Class 3 system pressure testing for Catawba Unit 2 in lieu of the 1998 edition with the 2000 addenda, Table IWD-2500-1, Category D-B for Class 3 system pressure testing for the third 10-year ISI interval is acceptable without limitation or modification. Therefore, pursuant to 10 CFR 50.55a(g)(4)(iv), the NRC staff approves the use of the 2001 edition of ASME Code,Section XI, Table IWD-2500-1, Category D-B for Class 3 system pressure testing for Catawba Unit 2 in lieu of the 1998 edition with the 2000 addenda, Table IWD-2500-1, Category D-B for Class 3 system pressure testing for the Catawba Unit 2 third 10-year ISI interval. All other ASME Code,Section XI requirements for which relief was not specifically requested and approved in this request remain applicable, including third-party review by the Authorized Nuclear Inservice Inspector.Principal Contributor: J. Stang Date: January 9, 2007