ND-22-0158, ITAAC Closure Notification on Completion of 2.3.09.03.ii (Index Number 424)
| ML22066B287 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 03/07/2022 |
| From: | Yox M Southern Nuclear Operating Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| ND-22-0158 | |
| Download: ML22066B287 (13) | |
Text
A Southern Nuclear MAR 0*7 2022 Docket No.:
52-025 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 Michael J. Yox Regulatory Affairs Director Vogtle 3 & 4 Southern Nuclear Operating Company Vogtle Electric Generating Plant Unit 3 7825 River Road Waynesboro, GA 30830 706-848-6459 tel ND-22-0158 1 O CFR 52.99(c)(1)
ITAAC Closure Notification on Completion of 2.3.09.03.ii [Index Number 424]
Ladies and Gentlemen:
In accordance with 1 O CFR 52.99(c)(1 ), the purpose of this letter is to notify the Nuclear Regulatory Commission (NRC) of the completion of Vogtle Electric Generating Plant (VEGP)
Unit 3 Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC) Item 2.3.09.03.ii [Index Number 424] to verify that 66 hydrogen igniters are provided at the locations specified, that the surface temperature meets or exceeds 1700°F, that controls in the main control room (MCR) operate to energize the igniters, and that displays identified in the Combined License (COL)
Appendix C Table 2.3.9-1 can be retrieved in the MCR. The closure process for this ITAAC is based on the guidance described in NEI 08-01, "Industry Guideline for the ITAAC Closure Process under 1 O CFR Part 52", which is endorsed by the NRC in Regulatory Guide 1.215.
This letter contains no new NRC regulatory commitments. Southern Nuclear Operating Company (SNC) requests NRC staff confirmation of this determination and publication of the required notice in the Federal Register per 1 O CFR 52.99.
If there are any questions, please contact Kelli Roberts at 706-848-6991.
Respectfully submitted, Michael J. Yox Regulatory Affairs Director Vogtle 3 & 4
Enclosure:
MJY/JTK/sfr Vogtle Electric Generating Plant (VEGP) Unit 3 Completion of ITAAC 2.3.09.03.ii [Index Number 424)
U.S. Nuclear Regulatory Commission ND-22-0158 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. J.B. Williams Mr. M. J. Yox 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 Nuclear Regulatory Commission Ms. M. Bailey 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 Mr. T. Fanelli Ms. K. Mccurry Mr. J. Parent Mr. B. Griman Mr. V. Hall
U.S. Nuclear Regulatory Commission ND-22-0158 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 Mr. J. L. Coward 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-22-0158 Enclosure Page 1 of 10 Southern Nuclear Operating Company ND-22-0158 Enclosure Vogtle Electric Generating Plant (VEGP) Unit 3 Completion of ITAAC 2.3.09.03.ii [Index Number 424]
U.S. Nuclear Regulatory Commission ND-22-0158 Enclosure Page 2 of 10 IT AAC Statement Design Commitment
- 3. The VLS provides the nonsafety-related function to control the containment hydrogen concentration for beyond design basis accidents.
4.a) Controls exist in the MCR to cause the components identified in Table 2.3.9-2 to perform the listed function.
- 5. Displays of the parameters identified in Table 2.3.9-1 can be retrieved in the MCR.
Inspections/Tests/ Analyses i) Inspection for the number of igniters will be performed.
ii) Operability testing will be performed on the igniters.
Testing will be performed on the igniters using the controls in the MCR.
Inspection will be performed for retrievability of the displays identified in Table 2.3.9-1 in the MCR.
Acceptance Criteria i) At least 66 hydrogen igniters are provided inside containment at the locations specified in Table 2.3.9-2.
ii) The surface temperature of the igniter meets or exceeds 1700°F.
Controls in the MCR operate to energize the igniters.
Displays identified in Table 2.3.9-1 can be retrieved in the MCR.
ITAAC Determination Basis This ITAAC performed testing and inspections to verify that the Containment Hydrogen Control System (VLS) provides the nonsafety-related function to control the containment hydrogen concentration for beyond design basis accidents by ensuring that the required number of hydrogen igniters were installed in the appropriate locations as specified by VEGP Combined License (COL) Appendix C Table 2.3.9-2 (Attachment A) and that the surface temperature of the igniters met or exceeded 1700°F. This ITAAC also verifies that controls exist in the Main Control Room (MCR) to cause the components identified in COL Appendix C Table 2.3.9-2 (Attachment A) to perform the listed function and that displays of the parameters identified in COL Appendix C Table 2.3.9-1 (Attachment B) can be retrieved in the MCR.
U.S. Nuclear Regulatory Commission ND-22-0158 Enclosure Page 3 of 10 i) At least 66 hydrogen igniters are provided inside containment at the locations specified in Table 2.3.9-2.
An inspection was performed in accordance with the Unit 3 ITAAC Technical Report SV3-VLS-ITR-800424 (Reference 1) to verify that at least 66 hydrogen igniters are provided inside containment at the locations specified In Attachment A.
The inspection was conducted by performing a walk down of the installed hydrogen igniters to verify the correct number of hydrogen igniters were installed and that they were all in the proper location. The results of the inspection verified that for Unit 3 there are at least 66 hydrogen igniters provided inside containment at the locations specified In Table 2.3.9-2.
ii) The surface temperature of the igniter meets or exceeds 1700°F.
Testing was performed in accordance with Unit 3 preoperational test procedure and work orders listed in Reference 2 to verify that the surface temperature of the igniter meets or exceeds 1700°F.
Testing began by installing appropriate personnel protection barriers and closing the power supply breakers for the hydrogen igniters and control cabinets. Each hydrogen igniter group control was placed to ON and the temperature of each igniter was taken and verified to meet acceptance criteria.
The results of the testing on Unit 3 verifies the surface temperature of each igniter meets or exceeds 1700°F.
Controls in the MCR operate to energize the igniters.
Testing was performed in accordance with Unit 3 preoperational test procedures and work orders listed in Reference 2 to verify that controls in the MCR operate to energize the igniters.
Testing was performed at an operator workstation in Unit 3 MCR and placed the hydrogen igniter controls to ON. All of the igniters listed in Attachment A were verified to energize by measuring the temperature which was performed by item ii) above.
Displays identified in Table 2.3.9-1 can be retrieved in the MCR.
An inspection was performed in accordance with the Unit 3 component test package work order listed in Reference 2 for VLS indication verifications, and visually confirmed that when each of the displays of parameters identified in Attachment B was summoned at an MCR workstation, the summoned plant parameter appeared on a display monitor at that MCR workstation.
The completed test and inspection results (References 1 and 2) confirm that at least 66 hydrogen igniters are provided inside containment at the locations specified in Table 2.3.9-2, that the surface temperature of the igniters meets or exceeds 1700°F, that controls in the MCR operate to energize the igniters, and that the displays identified in Table 2.3.9-1 can be retrieved in the MCR.
References 1 and 2 are available for NRC inspection as part of Unit 3 ITAAC Completion Package (Reference 3).
U.S. Nuclear Regulatory Commission ND-22-0158 Enclosure Page 4 of 1 O ITAAC 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 are no relevant IT AAC findings associated with this ITAAC. The ITAAC completion review is documented in the ITAAC Completion Package for ITAAC 2.3.09.03.ii (Reference 3) and is available for NRC review.
ITAAC Completion Statement Based on the above information, SNC hereby notifies the NRC that ITAAC 2.3.09.03.ii was performed for VEGP Unit 3 and that the prescribed acceptance criteria were met.
Systems, structures, and components verified as part of this ITAAC are being maintained in their as-designed ITAAC compliant condition in accordance with approved plant programs and procedures.
References (available for NRC inspection)
- 1. SV3-VLS-ITR-800424, Rev. 0, "Unit 3 Containment Hydrogen Control (VLS) Igniter Locations Inspection: ITAAC 2.3.09.03.ii Item 3.i) NRC Index Number: 424"
- 2. SV3-VLS-ITR-801424, Rev. 0, "Unit 3 Containment Hydrogen Control (VLS) Igniter Functionality Test and Parameter Displays: ITAAC 2.3.09.03.ii, Items 3.ii),4.a), and 5 NRC Index Number: 424
- 3. 2.3.09.03.ii-U3-CP-Rev0 "ITAAC Completion Package"
U.S. Nuclear Regulatory Commission ND-22-0158 Enclosure Page 5 of 10 Attachment A COL Appendix C Table 2.3.9-2 Equipment Tag Number Function Power Group Name Number Hydrogen VLS-EH-01 Energize 1
Igniter 01 Hydrogen VLS-EH-02 Energize 2
Igniter 02 Hydrogen VLS-EH-03 Energize 1
Igniter 03 Hydrogen VLS-EH-04 Energize 2
Igniter 04 Hydrogen VLS-EH-05 Energize 1
Igniter 05 Hydrogen VLS-EH-06 Energize 2
Igniter 06 Hydrogen VLS-EH-07 Energize 2
Igniter 07 Hydrogen VLS-EH-08 Energize 1
Igniter 08 Hydrogen VLS-EH-09 Energize 1
Igniter 09 Hydrogen VLS-EH-10 Energize 2
Igniter 10 Hydrogen VLS-EH-11 Energize 2
Igniter 11 Hydrogen VLS-EH-12 Energize 1
Igniter 12 Location Room No.
Tunnel 11204 connection loop compa rtments Tunnel 11204 connection loop compartments Tunnel 11204 connection loop compartments Tunnel 11204 connection loop compartments Loop 11402 compartment 02 Loop 11502 compartment 02 Loop 11402 compartment 02 Loop 11502 compartment 02 In-containment 11305 refueling water storage tank (IRWST) sparger side IRWST sparger 11305 side Loop 11401 compartment 01 Loop 11501 compartment 01
U.S. Nuclear Regulatory Commission ND-22-0158 Enclosure Page 6 of 10 Attachment A (con't)
Equipment Tag Number Function Power Group Name Number Hydrogen VLS-EH-13 Energize 1
Igniter 13 Hydrogen VLS-EH-14 Energize 2
Igniter 14 Hydrogen VLS-EH-15 Energize 2
Igniter 15 Hydrogen VLS-EH-16 Energize 1
Igniter 16 Hydrogen VLS-EH-17 Energize 2
Igniter 17 Hydrogen VLS-EH-18 Energize 1
Igniter 18 Hydrogen VLS-EH-19 Energize 2
Igniter 19 Hydrogen VLS-EH-20 Energize 2
Igniter 20 Hydrogen VLS-EH-21 Energize 1
Igniter 21 Hydrogen VLS-EH-22 Energize 1
Igniter 22 Hydrogen VLS-EH-23 Energize 2
Igniter 23 Hydrogen VLS-EH-24 Energize 2
Igniter 24 Hydrogen VLS-EH-25 Energize 2
Igniter 25 Location Room No.
Loop 11401 compartment 01 Loop 11501 compartment 01 IRWST vacuum 11305 breaker vents IRWST vacuum 11305 breaker vents Northeast valve 11207 room Northeast 11207 accumulator room East valve room 11208 Southeast 11206 accumulator room Southeast valve 11206 room Lower 11400 compartment area (core makeup tank
[CMT] and valve area)
Lower 11400 compartment area (CMT and valve area)
Lower 11400 compartment area (CMT and valve area)
Lower 11400 compartment area {CMT and valve area)
U.S. Nuclear Regulatory Commission ND-22-0158 Enclosure Page 7 of 10 Attachment A (con't)
Equipment Tag Number Function Power Group Name Number Hydrogen VLS-EH-26 Energize 2
Igniter 26 Hydrogen VLS-EH-27 Energize 1
Igniter 27 Hydrogen VLS-EH-28 Energize 1
Igniter 28 Hydrogen VLS-EH-29 Energize 1
Igniter 29 Hydrogen VLS-EH-30 Energize 2
Igniter 30 Hydrogen VLS-EH-31 Energize 1
Igniter 31 Hydrogen VLS-EH-32 Energize 1
Igniter 32 Hydrogen VLS-EH-33 Energize 2
Igniter 33 Hydrogen VLS-EH-34 Energize 1
Igniter 34 Hydrogen VLS-EH-35 Energize 1
Igniter 35 Hydrogen VLS-EH-36 Energize 2
Igniter 36 Hydrogen VLS-EH-37 Energize 1
Igniter 37 Location Room No.
Lower 11400 compartment area (CMT and valve area)
Lower 11300 compartment area {CMT and valve area)
Lower 11400 compartment area (CMT and valve area)
Lower 11400 compartment area (CMT and valve area)
Lower 11403 compartment area (CMT and valve area)
Lower 11400 compartment area (CMT and valve area)
Lower 11400 compartment area (CMT and valve area)
North CVS 11209 equipment room North CVS 11209 equipment room IRWST hooded 11500 vents IRWST hooded 11500 vents IRWST hooded 11500 vents
U.S. Nuclear Regulatory Commission ND-22-0158 Enclosure Page 8 of 10 Attachment A (con't)
Equipment Tag Number Function Power Group Name Number Hydrogen VLS-EH-38 Energize 2
Igniter 38 Hydrogen VLS-EH-39 Energize 1
Igniter 39 Hydrogen VLS-EH-40 Energize 2
Igniter 40 Hydrogen VLS-EH-41 Energize 2
Igniter 41 Hydrogen VLS-EH-42 Energize 1
Igniter 42 Hydrogen VLS-EH-43 Energize 1
Igniter 43 Hydrogen VLS-EH-44 Energize 1
Igniter 44 Hydrogen VLS-EH-45 Energize 2
Igniter 45 Hydrogen VLS-EH-46 Energize 2
Igniter 46 Hydrogen VLS-EH-47 Energize 1
Igniter 47 Hydrogen VLS-EH-48 Energize 2
Igniter 48 Hydrogen VLS-EH-49 Energize 1
Igniter 49 Hydrogen VLS-EH-50 Energize 2
Igniter 50 Hydrogen VLS-EH-51 Energize 1
Igniter 51 Location Room No.
IRWST hooded 11500 vents Upper 11500 compartment lower region Upper 11500 compartment lower region Upper 11500 compartment lower region Upper 11500 compartment lower region Upper 11500 compartment lower region Upper 11500 compartment lower region Upper 11500 compartment lower region Upper 11500 compartment lower region Upper 11500 compartment lower region Upper 11500 compartment lower region Pressurizer 11503 compartment Pressurizer 11503 compartment Upper 11500 compartment mid-region
U.S. Nuclear Regulatory Commission ND-22-0158 Enclosure Page 9 of 10 Attachment A (con't)
Equipment Tag Number Function Power Group Name Number Hydrogen VLS-EH-52 Energize 2
Igniter 52 Hydrogen VLS-EH-53 Energize 2
Igniter 53 Hydrogen VLS-EH-54 Energize 1
Igniter 54 Hydrogen VLS-EH-55 Energize 1
Igniter 55 Hydrogen VLS-EH-56 Energize 2
Igniter 56 Hydrogen VLS-EH-57 Energize 2
Igniter 57 Hydrogen VLS-EH-58 Energize 1
Igniter 58 Hydrogen VLS-EH-59 Energize 2
Igniter 59 Hydroge n VLS-EH-60 Energize 1
Igniter 60 Hydrogen VLS-EH-61 Energize 1
Igniter 61 Hydrogen VLS-EH-62 Energize 2
Igniter 62 Hydrogen VLS-EH-63 Energize 1
Igniter 63 Hydrogen VLS-EH-64 Energize 2
Igniter 64 Hydrogen VLS-EH-65 Energize 1
Igniter 65 Hydrogen VLS-EH-66 Energize 2
Igniter 66 Location Room No.
Upper 11500 compartment mid-region Upper 11500 compartment mid-region Upper 11500 compartment mid-region Refueling 11504 cavity Refueling 11504 cavity Refueling 11504 cavity Refueling 11504 cavity Pressurizer 11503 compartment Pressurizer 11503 compartment Upper 11500 compartment-upper region Upper 11500 compa rtment-upper region Upper 11500 compartment-upper region Upper 11500 compartment-upper region IRWST roof 11500 vents IRWST roof 11500 vents
U.S. Nuclear Regulatory Commission ND-22-0158 Enclosure Page 10 of 10 Attachment B COL Appendix C Table 2.3.9-1 Equipment Tag No.
Containment Hydroqen Monitor VLS-001 Containment Hydroqen Monitor VLS-002 Containment Hydrogen Monitor VLS-003 Display Yes Yes Yes