ND-22-1157, ITAAC Closure Notification on Completion of 2.7.02.03a (Index Number 703)

ITAAC Closure Notification on Completion of 2.7.02.03a (Index Number 703)

ML22048C207
Person / Time
Site:	Vogtle
Issue date:	02/17/2022
From:	Yox M Southern Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
ND-22-1157
Download: ML22048C207 (9)

Text

Michael J. Yox 7825 River Road Southern Nuclear Regulatory Affairs Director Waynesboro, GA 30830 Vogtle 3 & 4 706-848-6459 tel Docket No.: 52-025 ND-22-1157 FEB 1 7 2022 10 CFR 52.99(c)(1)

U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 Southern Nuclear Operating Company Vogtle Electric Generating Plant Unit 3 ITAAC Closure Notification on Completion of 2.7.02.03a [Index Number 7031 Ladies and Gentlemen:

In accordance with 10 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 2.7.02.03a [Index Number 703]

which verifies component flow rates. Main Control Room (MCR)controls, and MCR indications for the Central Chilled Water System (VWS). The closure process for this ITAAC is based on the guidance described in NEI 08-01, "Industry Guideline for the ITAAC Closure Process under 10 CFR Part 52," which was 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 10 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:

Vogtle Electric Generating Plant(VEGP) Unit 3 Completion of ITAAC 2.7.02.03a [Index Number 703]

MJY/DLW/sfr

U.S. Nuclear Regulatory Commission ND-22-1157 Page 2 of 3 To:

Southern Nuclear Qperatino Companv/ Georgia Power Company Mr. Peter P. Sena III Mr. D. L. McKinney Mr. H. NIeh Mr. G. Chick Mr. S. Stimac Mr. P. Martino Mr. J.B. Williams Mr. M. J. Vox 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. Beiike Mr. S. Leighty Ms. A. C. Chamberlain Mr. J. C. Haswell Document Services RTYPE: VND.LI.L06 File AR.01.02.06 Nuclear Reoulatorv 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. O. 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-22-1157 Page 3 of 3 Qqlethorpe Power Corporation Mr. R. B. Brinkman Mr. E. Rasmussen Municipal Electric Authority of Georgia Mr. J. E. Fuller Mr. 8. M. Jackson Daiton Utilities Mr. T. Bundros Westinqhouse Electric Company. LLC Dr. L. Oriani Mr. D. 0. Durham Mr. M. M. Corletti Mr. Z. 8. Harper Mr. J. L. Coward Other Mr. 8. W. Kline, Bechtel Power Corporation Ms. L. Matis, Tetra Tech NU8, Inc.

Dr. W. R. Jacobs, Jr., Ph.D., GD8 Associates, Inc.

Mr. 8. Roetger, Georgia Public Service Commission Mr. R. L. Trokey, Georgia Public Service Commission Mr. K. C. Greene, Troutman Sanders Mr. 8. Blanton, Balch Bingham

U.S. Nuclear Regulatory Commission ND-22-1157 Enciosure Page 1 of 6 Southern Nuclear Operating Company ND-22-1157 Enclosure Vogtle Electric Generating Plant(VEGP) Unit 3 Completion of ITAAC 2.7.02.03a [Index Number 703]

U.S. Nuclear Regulatory Commission ND-22-1157 Enciosure Page 2 of 6 ITAAC Statement Design Commitment 3.a) The VWS provides chilled water to the supply air handling units serving the MCR,the Ciass 1E electricai rooms, and the unit coolers serving the RNS and CVS pump rooms.

4. Controls exist in the MCR to cause the components identified in Tabie 2.7.2-1 to perform the listed function.

5. Dispiays of the parameters identified in Table 2.7.2-1 can be retrieved in the MCR.

Inspections/Tests/Analvses Testing will be performed by measuring the flow rates to the chilled water cooling coils.

Testing wiii be performed on the components in Table 2.7.2-1 using controls in the MCR.

Inspection will be performed for retrievability of parameters in the MCR.

Acceptance Criteria The water flow to each cooling coil equals or exceeds the following:

Coil Flow (gpm)

VBSMYC01A/B 96 VBS MY C02A/C 97 VBS MY C02B/D 52 VASMYC07A/B 12.3 VASMYC12A/B 8.2 VAS MY C06A/B 8.2 Controls in the MCR operate to cause the components listed in Table 2.7.2-1 to perform the listed functions.

The displays identified in Table 2.7.2-1 can be retrieved in the MCR.

ITAAC Determination Basis This ITAAC required testing and inspections to be performed to verify that the Central Chilled Water System (VWS) provided the required chilled water flows to the air handiing units for the Main Control Room (MCR), the Class IE electrical rooms, and the Normal Residual Heat Removal System (RNS) pump room coolers and Chemical and Volume Control System (CVS) pump room coolers (Attachment A). Testing also verified controls in the MCR operated to cause components iisted in COL Appendix C Tabie 2.7.2-1 (Attachment B)to perform their listed function and an inspection was performed to verify the dispiays identified in COL Appendix C Table 2.7.2-1 can be retrieved in the MCR (Attachment C).

U.S. Nuclear Regulatory Commission ND-22-1157 Enclosure Page 3 of 6 The water flow to each cooling coil equals or exceeds the followino:

Coll Flow faom)

VBSMYC01A/B 96 VBS MY C02A/G 97 VBS MY C02B/D 52 VASMYC07A/B 12.3 VASMYC12A/B 8.2 VAS MY C06A/B 8.2 Testing was performed In accordance with the work order and preoperatlonal test procedures found In Reference 1 that verified the cooling water flow to each cooling coll equals or exceeded the required flow rates.

Initial conditions were established with Low Capacity Chiller MS-02 In service and temporary flow Instruments were Installed on the outlet line from each of the coolers tested. The flow control valves were manually opened to ensure full flow through the affected 6 coolers. When the chilled water flow stabilized, 10 flow readings were taken at 3 minute Intervals. The flow value for each cooler was verified to be above the required values, and the system was restored to normal. This testing was then repeated with the Low Capacity Chiller MS-03 and the remaining 6 cooler units. This testing shows that the flows obtained (Attachment A) were greater than or equal to the ITAAC acceptance criteria required flows.

Controls In the MCR operate to cause the components listed In Table 2.7.2-1 to perform the listed functions.

Testing was performed In accordance with component test work order found In Reference 2 and verified that controls exist In the MCR and the controls operated to cause the components listed In Table 2.7.2-1 (Attachment B)to perform the listed functions.

The component test began with the components In Attachment B In the closed position or shutdown condition. The valves were stroked to the open position using controls In the MCR, were locally verified to be In the correct position, and documented In the test. The ventilation components were started using controls In the MCR, were locally verified to have started, and documented In the test. The test results confirm that controls In Unit 3 MCR operate to cause the components listed In Table 2.7.2-1 to perform the listed functions.

The displavs Identified In Table 2.7.2-1 can be retrieved In the MCR.

The Inspection was performed In accordance with component test work order listed In Reference 2 and verified that the displays Identified In Table 2.7.2-1 (Attachment C)can be retrieved In the MCR.

Inspection occurred at an operator work station In the Unit 3 MCR and verified all of the displays Identified In Attachment C could be retrieved. This confirms that the displays Identified In Table 2.7.2-1 can be retrieved In the Unit 3 MCR.

The completed test results (References 1 and 2), confirm that the low capacity chillers provide the required flow to the listed components, that the controls In the MCR operate to cause the

U.S. Nuclear Regulatory Commission ND-22-1157 Enclosure Page 4 of 6 components listed In Table 2.7.2-1 to perform the listed functions, and that the displays Identified In Table 2.7.2-1 can be retrieved In the MGR.

References 1 and 2 are available for NRG Inspection as part of Unit 3 ITAAG 2.7.02.03a Completion Package (Reference 3).

ITAAC Finding Review In accordance with plant procedures for ITAAG completion, Southern Nuclear Operating Company(SNG) performed a review of all findings pertaining to the subject ITAAG and associated corrective actions. This review found there are no relevant ITAAG findings associated with this ITAAG.

ITAAC Completion Statement Based on the above Information, SNG hereby notifies the NRG that ITAAG 2.7.02.03a was performed for VEGP Unit 3 and that the prescribed acceptance criteria were met.

Systems, structures, and components verified as part of this ITAAG are being maintained In their as-designed, ITAAG compliant condition In accordance with approved plant programs and procedures.

References favailable for NRC inspection^

1. SV3-VWS-ITR-800703, Rev 0,"Unit 3 Recorded Results of VWS Chilled Water Cooling Colls Flow: ITAAG 2.7.02.03a, Item 3.a"

2. SV3-VWS-ITR-801703, Rev 0,"Unit 3 Recorded Results of Central Chilled Water System Component Test and Inspection: ITAAG 2.7.02.03a, Item 4 and 5"

3. 2.7.02.03a-U3-GP-Rev0, ITAAG Completion Package

U.S. Nuclear Regulatory Commission ND-22-1157 Enclosure Page 5 of 6 Attachment A Chiller ITAAC Required Actual Flow Unit Coil Number Unit Flow(gpm) (gpm) 3 VBS MY C01A 96 109.5 3 VBS MY C02A 97 112.1 3 VBS MY C02D 52 62.8 MS-02 3 VAS MY C06A 8.2 9.5 3 VAS MY C07A 12.3 14.3 3 VAS MY C012B 8.2 9.6 3 VBS MY 001B 96 102.7 3 VBS MY C02B 52 57.3 3 VBS MY 0020 97 107.2 MS-03 3 VAS MY 006B 8.2 9.66 3 VAS MY O07B 12.3 14.25 3 VAS MY O012A 8.2 9.46 Attachment B Equipment Name

• Tag No.* Controi Function

• Air-cooled Chiller VWS-MS-02 Start Air-cooled Chiller VWS-MS-03 Start Air-cooled Chiller Pump VWS-MP-02 Start Air-cooled Chiller Pump VWS-MP-03 Start CVS Pump Room Unit Cooler Fan A VAS-MA-07A Start CVS Pump Room Unit Cooler Fan B VAS-MA-07B Start RNS Pump Room Unit Cooler Fan A VAS-MA-08A Start RNS Pump Room Unit Cooler Fan B VAS-MA-08B Start Air-cooled Chiller Water Valve VWS-PL-V210 Open Air-cooled Chiller Water Valve VWS-PL-V253 Open

U.S. Nuclear Regulatory Commission ND-22-1157 Enclosure Page 6 of 6 Attachment C Equipment Name

• Tag No.* Display

• Air-cooled Chiller VWS-MS-02 Yes(Run Status)

Air-cooled Chiller VWS-MS-03 Yes(Run Status)

Air-cooled Chiller Pump VWS-MP-02 Yes(Run Status)

Air-cooled Chiller Pump VWS-MP-03 Yes(Run Status)

CVS Pump Room Unit Cooler Fan A VAS-MA-07A Yes(Run Status)

CVS Pump Room Unit Cooler Fan B VAS-MA-07B Yes(Run Status)

RNS Pump Room Unit Cooler Fan A VAS-MA-08A Yes(Run Status)

RNS Pump Room Unit Cooler Fan B VAS-MA-08B Yes(Run Status)

Air-cooled Chiller Water Valve VWS-PL-V210 Yes (Position Status)

Air-cooled Chiller Water Valve VWS-PL-V253 Yes (Position Status)