ND-22-0573, ITAAC Closure Notification on Completion of ITAAC 2.3.06.12a.i (Index Number 384)
| ML22230D067 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 08/18/2022 |
| From: | Coleman J Southern Nuclear Operating Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| ND-22-0573 | |
| Download: ML22230D067 (8) | |
Text
~ Southern Nuclear Jamie M. Coleman Regulatory Affairs Director Vogtle 3 & 4 August 18,2022 Docket Nos.: 52-026 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 Southern Nuclear Operating Company Vogtle Electric Generating Plant Unit 4 7825 River Road Waynesboro, GA 30830 706-848-6926 tel ND-22-0573 10 CFR 52.99(c)(1)
ITAAC Closure Notification on Completion of ITAAC 2.3.06.12a.i [Index Number 384]
Ladies and Gentlemen:
In accordance with 10 CFR 52.99(c)(1 ), the purpose of this letter is to notify the Nuclear Regulatory Commission (NRG) of the completion of Vogtle Electric Generating Plant (VEGP) Unit 4 Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC) Item 2.3.06.12a.i [Index Number 384]. This ITAAC confirms that the Normal Residual Heat Removal System (RNS) motor-operated valves identified in COL Appendix C Table 2.3.2-1 perform an active safety-related function to change position as indicated in the table. The closure process for this ITAAC is based on the guidance described in Nuclear Energy Institute (NEI) 08-01, "Industry Guideline for the ITAAC Closure Process Under 10 CFR Part 52," which was endorsed by the NRG in Regulatory Guide 1.215.
This letter contains no new NRG regulatory commitments. Southern Nuclear Operating Company (SNC) requests NRG staff confirmation of this determination and publication of the required notice in the Federal Register per 10 CFR 52.99.
If there are any questions, please contact Kelli Roberts at 706-848-6991.
Respectfully submitted,
~()WWtWr Jamie M. Coleman Regulatory Affairs Director Vogtle 3 & 4
Enclosure:
JMC/AD/sfr Vogtle Electric Generating Plant (VEGP) Unit 4 Completion of ITAAC 2.3.06.12a.i [Index Number 384]
U.S. Nuclear Regulatory Commission ND-22-0573 Page 2 of 3 To:
Southern Nuclear Operating Company/ Georgia Power Company Mr. Peter P. Sena Ill Mr. D. L. McKinney Mr. H. Nieh Mr. G. Chick Mr. S. Stimac Mr. P. Martino Mr. D. Pitts Mr. J. B. Williams Mr. A. S. Parton Ms. K. A. Roberts Ms. J.M. Coleman Mr. C. T. Defnall Mr. C. E. Morrow Mr. K.J. Drudy Mr. J.M. Fisher Mr. R. L. Beilke Mr. S. Leighty Ms. A. C. Chamberlain Mr. J. C. Haswell Document Services RTYPE: VND.LI.L06 File AR.01.02.06 cc:
Nuclear Regulatory Commission Mr. M. King Mr. G. Bowman Ms. A. Veil Mr. C. P. Patel Mr. G. J. Khouri Mr. C. J. Even Mr. B. J. Kemker Ms. N. C. Coovert Mr. C. Welch Mr. J. Gaslevic Mr. 0. Lopez-Santiago Mr. G. Armstrong Mr. M. Webb Mr. T. Fredette Mr. C. Santos Mr. B. Davis Mr. J. Vasquez Mr. J. Eargle Ms. K. Mccurry Mr. J. Parent Mr. B. Griman Ms. V. Hall
U.S. Nuclear Regulatory Commission ND-22-0573 Page 3 of 3 Oglethorpe Power Corporation Mr. R. B. Brinkman Mr. E. Rasmussen Municipal Electric Authority of Georgia Mr. J. E. Fuller Mr. S. M. Jackson Dalton Utilities Mr. T. Bundros Westinghouse Electric Company, LLC Dr. L. Oriani Mr. D. C. Durham Mr. M. M. Corletti Mr. Z. S. Harper Ms. S.L. Zwack Other Mr. S. W. Kline, Bechtel Power Corporation Ms. L. Matis, Tetra Tech NUS, Inc.
Dr. W. R. Jacobs, Jr., Ph.D., GOS Associates, Inc.
Mr. S. Roetger, Georgia Public Service Commission Mr. R. L. Trokey, Georgia Public Service Commission Mr. K. C. Greene, Troutman Sanders Mr. S. Blanton, Balch Bingham
U.S. Nuclear Regulatory Commission ND-22-0573 Enclosure Page 1 of 5 Southern Nuclear Operating Company ND-22-0573 Enclosure Vogtle Electric Generating Plant (VEGP) Unit 4 Completion of ITAAC 2.3.06.12a.i [Index Number 384]
U.S. Nuclear Regulatory Commission ND-22-0573 Enclosure Page 2 of 5 IT AAC Statement Design Commitment 12.a) The motor-operated and check valves identified in Table 2.3.6-1 perform an active safety-related function to change position as indicated in the table.
Inspections/Tests/ Analyses i) Tests or type tests of motor-operated valves will be performed that demonstrate the capability of the valve to operate under its design conditions.
ii) Inspection will be performed for the existence of a report verifying that the as-built motor-operated valves are bounded by the tested conditions.
Acceptance Criteria i) A test report exists and concludes that each motor-operated valve changes position as indicated in Table 2.3.6-1 under design conditions.
ii) A report exists and concludes that the as-built motor-operated valves are bounded by the tested conditions.
ITAAC Determination Basis Multiple Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC) were performed to demonstrate that the Normal Residual Heat Removal System (RNS) motor-operated valves identified in the Combined License (COL) Appendix C, Table 2.3.6-1 perform an active safety-related function to change position as indicated in the table.
i} A test report exists and concludes that each motor-operated valve changes position as indicated in Table 2.3.6-1 under design conditions.
This portion of the subject ITAAC required tests or type tests of motor-operated valves to be performed to demonstrate the capability of the valve to operate under its design conditions.
The motor-operated valves identified in COL Appendix C, Table 2.3.6-1 were qualified in accordance with the provisions of American Society of Mechanical Engineers (ASME) QME-1-2007, Qualification of Active Mechanical Equipment Used in Nuclear Power Plants (Reference 1 ).
Functional qualification was performed under the design conditions identified in the design specification for the valves (Reference 2) to demonstrate that each motor-operated valve is qualified to perform its designated function when used in its intended service. In accordance with ASME QME 2007, qualification was substantiated by demonstrating the relationship between the service requirements and the type testing and analysis that was conducted as part of this qualification program.
Type testing was performed, including natural frequency determination, side load static deflection testing, final static seat and stem leakage testing, steam testing, and water testing, for the ranges of the pressure, temperature and flow for each valve and the maximum seat-sealing differential pressure.
In accordance with ASME QME-1-2007, the functional qualification process for these motor-operated valve assemblies also included valve and actuator internal inspections and measurement, orientation requirements, seat and stem leakage limitations, diagnostic data collection and analysis methods,
U.S. Nuclear Regulatory Commission ND-22-0573 Enclosure Page 3 of 5 static and dynamic flow diagnostic testing, and pressure locking and thermal binding evaluations. The qualification also followed the provisions of ASME QME-1-2007 for the extrapolation of functional qualification to another valve assembly, and demonstration of functional capability of production valve assemblies.
The results of the qualification are documented in the Equipment Qualification (EQ) Reports (Reference 3) which are identified in Attachment A for each applicable valve. These reports summarize the test methodology and ASME QME-1-2007 functional qualification that demonstrate that each motor-operated valve changes position as indicated in COL Appendix C, Table 2.3.6-1 under design conditions.
ii) A report exists and concludes that the as-built motor-operated valves are bounded by the tested conditions.
This portion of the subject IT AAC required that an inspection be performed for the existence of a report verifying that the as-built motor-operated valves are bounded by the tested conditions.
The motor-operated valves in COL Appendix C, Table 2.3.6-1 were verified by type tests in accordance with section i) above, to demonstrate the capability of the valves to operate under their design conditions. The EQ Reports in Attachment A identify the equipment mounting employed for the testing and the specific conditions tested.
In accordance with the EQ ITAAC As-built Walkdown Guideline (Reference 4) and the EQ ITAAC As-built Installation Documentation Guideline (Reference 5), an inspection was conducted of the RNS to confirm the satisfactory installation of the motor-operated valves. The inspection included verification of equipment make/model/serial number, verification of equipment mounting and location, and verification that the mechanical and electrical connections are bounded by the tested conditions.
The documentation of installed configuration of the motor-operated valves includes photographs and/or sketches of equipment mounting and connections. The verification of installed equipment configuration is documented in As-Built EQ Reconciliation Report (EQRR) (Reference 6).
Attachment A identifies the EQRR which verifies that the installed configuration of the motor-operated valves identified in COL Appendix C, Table 2.3.6-1 are bounded by the tested conditions.
Together, these EQ Reports and the EQRR (References 3 and 6), provide evidence that the ITAAC Acceptance Criteria requirements are met:
A test report exists and concludes that each motor-operated valve changes position as indicated in Table 2.3.6-1 under design conditions; and A report exists and concludes that the as-built motor-operated valves are bounded by the tested conditions.
References 3 and 6 are available for NRC Inspection as part of the Unit 4 ITAAC 2.3.06.12a.i Completion Package (Reference 7).
IT AAC Finding Review In accordance with plant procedures for ITAAC completion, Southern Nuclear Operating Company (SNC) performed a review of all findings pertaining to the subject ITAAC and associated corrective actions. This review found there were two relevant ITAAC findings associated with this ITAAC.
U.S. Nuclear Regulatory Commission ND-22-0573 Enclosure Page 4 of 5 Notice of Nonconformance 99900905/2012-201-01 (closed)
Notice of Nonconformance 99900905/2012-201-04 (closed)
The corrective actions for these findings have been completed and the findings are closed. The ITAAC completion review is documented in the ITAAC Completion Package for ITAAC 2.3.06.12a.i (Reference 7) and is available for NRC review.
ITAAC Completion Statement Based on the above information, SNC hereby notifies the NRC that ITAAC 2.3.06.12a.i was performed for VEGP Unit 4 and that the prescribed acceptance criteria were met.
Systems, structures, and components verified as part of this IT AAC are being maintained in their as-designed, ITAAC compliant condition in accordance with approved plant programs and procedures.
References (available for NRC inspection)
- 1. American Society of Mechanical Engineers (ASME) QME-1-2007, "Qualification of Active Mechanical Equipment Used in Nuclear Power Plants"
- 2. SV4-PV01-Z0-001, Revision 4, "3" and Larger Motor Operated Gate and Globe Valves, ASME Boiler and Pressure Vessel Code Section Ill, Class 1, 2, and 3"
- 3. Equipment Qualification (EQ) Reports as Identified in Attachment A
- 6. As-Built Equipment Qualification Reconciliation Report (EQRR) as Identified In Attachment A
- 7. 2.3.06.12a.i-U4-CP-Rev0, ITAAC Completion Package
U.S. Nuclear Regulatory Commission ND-22-0573 Enclosure Page 5 of 5 Attachment A System: Normal Residual Heat Removal System (RNS)
Active EQ Reports Equipment Name +
Tag No.+
Function+
(Reference 3)
RCS Inner Hot Leg Suction Transfer SV4-PV01-VBR-012/
Motor-operated Isolation RNS-PL-V001A Closed SV4-PV01-VBR-011
~alve RCS Inner Hot Leg Suction Transfer SV4-PV01-VBR-012/
Motor-operated Isolation RNS-PL-V001 B Closed SV4-PV01-VBR-011
~alve RCS Outer Hot Leg Suction Transfer SV4-PV01-VBR-012/
Motor-operated Isolation RNS-PL-V002A Closed SV4-PV01-VBR-011 Valve RCS Outer Hot Leg Suction Transfer SV4-PV01-VBR-012/
Motor-operated Isolation RNS-PL-V002B Closed SV4-PV01-VBR-011
~alve RNS Discharge Motor-Transfer SV4-PV01-VBR-012/
operated Containment RNS-PL-V011 Closed SV4-PV01-VBR-011 Isolation Valve RNS Suction Header Transfer SV4-PV01-VBR-012/
Motor-operated Containment RNS-PL-V022 Closed SV4-PV01-VBR-011 Isolation Valve RNS Suction from IRWST Transfer SV4-PV01-VBR-012/
Motor-operated Isolation RNS-PL-V023 Closed SV4-PV01-VBR-011
~alve Notes:
+ Excerpt from COL Appendix C Table 2.3.6-1 As-Built EQRR (Reference 6) 2.3.06.12a.i-U4-EQRR-PCD001 2.3.06.12a.i-U4-EQRR-PCD001 2.3.06.12a.i-U4-EQRR-PCD001 2.3.06.12a.i-U4-EQRR-PCD001 2.3.06.12a.i-U4-EQRR-PCD001 2.3.06.12a.i-U4-EQRR-PCD001 2.3.06.12a.i-U4-EQRR-PCD001