ML15029A424

Fifth 10-Year Inservice Inspection Interval Request for Subsequent Edition/Addenda

ML15029A424
Person / Time
Site:	Surry
Issue date:	02/10/2015
From:	Robert Pascarelli Plant Licensing Branch II
To:	Heacock D Virginia Electric & Power Co (VEPCO)
Pascarelli R
References
TAC MF5556
Download: ML15029A424 (6)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 February 10, 2015 Mr. David A. Heacock President and Chief Nuclear Officer Virginia Electric and Power Company lnnsbrook Technical Center 5000 Dominion Blvd.

Glenn Allen, VA 23060

SUBJECT:

SURRY POWER STATION, UNIT NO.1- FIFTH 10-YEAR INSERVICE INSPECTION INTERVAL REQUEST FOR SUBSEQUENT EDITION/ADDENDA (TAC NO. MF5556)

Dear Mr. Heacock:

By letter dated November 26, 2013 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML13336A142), Virginia Electric and Power Company (Dominion, the licensee), requested use of a subsequent edition and addenda of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI, for inservice inspection (lSI) examinations of certain components.

Specifically, pursuant to Title 10 of the Code of Federal Regulations (1 0 CFR) 50.55a(g)(4)(iv),

the licensee requested to use the 2007 Edition through the 2008 Addenda of the ASME Code,Section XI, subject to the conditions listed in 10 CFR 50.55a(b), for examinations of Examination Category B-L-1 components at Surry Power Station, Unit 1 (SPS1 ).

The U.S. Nuclear Regulatory Commission (NRC) staff concludes that the licensee has adequately addressed all of the regulatory requirements set forth in 10 CFR 50.55a(g)(4)(iv).

Accordingly, the U.S. NRC staff has determined that the use of a subsequent Edition of ASME Code,Section XI, requirements is acceptable. Therefore, the NRC staff authorizes the use of the 2007 Edition through the 2008 Addenda of the ASME Code,Section XI, for. Examination Category B-L-1 for the fifth 10-year lSI interval at SPS1.

Heacock, D. If you have any questions, please contact the Project Manager, Karen Cotton at 301-415-1438 or via e-mail at Karen.Cotton@nrc.gov.

Sincerely, Robert J. Pascarelli, Chief Plant Licensing Branch 2-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No: 50-280

Enclosure:

Safety Evaluation cc w/encl: Distribution via ListServ

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION FIFTH 10-YEAR INSERVICE INSPECTION INTERVAL REQUEST FOR SUBSEQUENT EDITION/ADDENDA SURRY POWER STATION UNIT 1 VIRGINIA ELECTRIC AND POWER COMPANY DOCKET NO. 50-280

1.0 INTRODUCTION

By letter dated November 26, 2013 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML13336A142),Virginia Electric and Power Company (Dominion, the licensee), requested use of a subsequent edition and addenda of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI, for inservice inspection (lSI) examinations of certain components.

Specifically, pursuant to Title 10 of the Code of Federal Regulations (1 0 CFR) 50.55a(g)(4)(iv),

the licensee requested to use the 2007 Edition through the 2008 Addenda of the ASME Code,Section XI, subject to the conditions listed in 10 CFR 50.55a(b), for examinations of Examination Category B-L-1 components at Surry Power Station, Unit 1 (SPS1).

This request is associated with the lSI requirements of the ASME Code,Section XI, for the fifth 10-year lSI interval at SPS1, which started December 14,2013, and is scheduled to end October 13, 2023.

2.0 REGULATORY EVALUATION

10 CFR 50.55a(g)(4)(ii) states, in part, that inservice examination of components conducted during 120-month intervals must comply with the latest edition and addenda of the ASME Code incorporated by reference in 10 CFR 50.55a(b) 12 months before the start of the 120-month inspection interval or the optional ASME Code cases listed in NRC Regulatory Guide 1.147.

The licensee proposes the use of a later edition of the ASME Code in accordance with 10 CFR 50.55a(g)(4)(iv). The U.S. Nuclear Regulatory Commission (NRC or Commission) staff notes that 10 CFR 50.55a(g)(4)(iv) states:

Enclosure

lnservice examination of components and system pressure tests may meet the requirements set forth in subsequent editions and addenda of the ASME Code provided that they are incorporated by reference in 10 CFR 50.55a(b), subject to the conditions listed in 10 CFR 50:55a(b), 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.

The licensee has proposed the use of a later edition of the ASME Code pursuant to 10 CFR 50.55a(g)(4)(iv) and 10 CFR 50.55a(g)(4)(iv) specifically permits the use of later editions of the ASME Code subject to the technical criteria which will listed below. Therefore, the NRC staff finds that regulatory authority exists to authorite the use of a subsequent edition of the ASME Code, as requested by the licensee.

3.0 TECHNICAL EVALUATION

3.1 The License's Request The ASME Code components affected by the licensee's request are as follows:

ASME Code,Section XI, Examination Categories:

• B-L-1, Pressure Retaining Welds in Pump Casings The Code of Record for the current SPS1 lSI interval for Code Class 1, 2 and 3 components is the ASME Section XI, 2004 Edition. The examinations would not be required to be performed under the Code of Record until the last period of the current inspection interval.

In lieu of the current Code of Record, ASME Code,Section XI, 2004 Edition, the licensee proposes using the ASME Code,Section XI, 2007 Edition through the 2008 Addenda for Category B-L-1 components. The licensee noted that Examination Categories B-L-1 are not included in the 2007 Edition through the 2008 Addenda.

3.2 NRC Staff Evaluation 10 CFR 50.55a(g)(4)(iv) contains 4 criteria which must be met prior to use of a subsequent edition of the ASME Code these criteria are:

1. The proposed edition/addendum of the ASME Code is incorporated by reference in 10 CFR 50.55a(b). .

2. The proposed edition/addendum of the ASME Code is subject to the conditions listed in 10 CFR 50.55a(b).

3. The licensee shall request Commission approval to use the proposed edition/addendum of the ASME Code.

4. If only portions of editions or addenda are to be used all related requirements of the respective editions or addenda must be met.

In evaluating the first criterion (i.e., that the proposed edition/addendum of the ASME Code has been incorporated by reference in 10 CFR 50.55a(b) ), the NRC staff notes that 10 CFR 50.55a(b)(2) incorporates by reference the ASME Code,Section XI, from the 1970 Edition through the 1976 Winter Addenda, and the 1977 Edition through the 2007 Edition with the 2008 Addenda, which was proposed by the licensee. Therefore, the NRC finds that the first criterion has been satisfied.

In evaluating the second criterion (i.e., that the conditions listed in 10 CFR 50.55a(b) are satisfied for the specific proposed subsequent edition and addenda of the ASME Code,Section XI), the NRC staff notes that 10 CFR 50.55a(b) sets no conditions on Examination Category B-L-1 of the 2007 Edition, 2008 Addenda of the ASME Code,Section XI. Therefore, the NRC staff finds that the second criterion has been satisfied.

In evaluating the third criterion (i.e:, that the licensee shall request Commission approval to use the proposed edition/addendum of the ASME Code), the NRC staff notes that the licensee's relief request constitutes a request to the Commission for approval to use a subsequent edition/addendum of the ASME Code. Therefore, the NRC staff finds that the third criterion has been satisfied.

In evaluating the fourth criterion (i.e., that if portions of subsequent editions or addenda of the ASME Code,Section XI are us*ed), all related requirements of the respective editions or addenda must be met, the NRC staff is satisfied that the licensee has listed all related requirements in Examination Category B-L-1 of the 2007 Edition through the 2008 Addenda of the ASME Code,Section XI. Therefore, the NRC staff finds that the fourth criterion has been satisfied.

Based on the above, the NRC staff finds that the criteria contained in 10 CFR 50.55a(g)(4)(iv) are satisfied and that the licensee's request to use the 2007~Edition, 2008 Addenda of the ASME Code,Section XI, for Examination Category B-L-1 is acceptable.

4.0 CONCLUSION

As set forth above, the NRC staff determines that the use of a subsequent Edition of ASME Code,Section XI, requirements is acceptable. Accordingly, the NRC staff concludes that the licensee has adequately addressed all of the regulatory requirements set forth in 10 CFR 50.55a(g)(4)(iv). Therefore, the NRC staff authorizes the use of the 2007 Edition through the 2008 Addenda of the ASME Code,Section XI for Examination Category B-L-1 for the fifth 10-year lSI interval at SPS 1.

Principal Contributor: Keith Hoffman Date of issuance: February 10, 2015

ML15029A424 *concurred by SE OFFICE NRR/DORL/LPL2-1/PM NRR/DORLILPL2-1/LA TECH BRANCH NRR/DORL/LPL2-1/BC NAME KCotton SFigueroa DAlley* RPascarelli DATE 02/04/15 02/04/15 01/12/15 02/10/15