ND-23-0306, ITAAC Closure Notification on Completion of ITAAC 2.2.01.07.ii (Index Number 108)
| ML23111A194 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 04/21/2023 |
| From: | Coleman J Southern Nuclear Operating Co |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| ND-23-0306 | |
| Download: ML23111A194 (1) | |
Text
Jamie M. Coleman Regulatory Affairs Director Vogtle 3 & 4 7825 River Road Waynesboro, GA 30830 706-848-6926 tel April 21, 2023 Docket No.:
52-026 ND-23-0306 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 4 ITAAC Closure Notification on Completion of ITAAC 2.2.01.07.ii [Index Number 108]
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 4 Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC) Item 2.2.01.07.ii [Index Number 108], for verifying that remotely operated containment isolation valves close within the required response times. 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 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 10 CFR 52.99.
If there are any questions, please contact Kelli Roberts at 706-848-6991.
Respectfully submitted, Jamie M. Coleman Regulatory Affairs Director Vogtle 3 & 4
Enclosure:
Vogtle Electric Generating Plant (VEGP) Unit 4 ITAAC Closure Notification on Completion of ITAAC 2.2.01.07.ii
[Index Number 108]
JMC/PCM/sfr
U.S. Nuclear Regulatory Commission ND-23-0306 Page 2 of 2 cc:
Regional Administrator, Region ll Director, Office of Nuclear Reactor Regulation (NRR)
Director, Vogtle Project Office NRR Senior Resident Inspector - Vogtle 3 & 4
U.S. Nuclear Regulatory Commission ND-23-0306 Enclosure Page 1 of 8 Southern Nuclear Operating Company ND-23-0306 Enclosure Vogtle Electric Generating Plant (VEGP) Unit 4 ITAAC Closure Notification on Completion of ITAAC 2.2.01.07.ii [Index Number 108]
U.S. Nuclear Regulatory Commission ND-23-0306 Enclosure Page 2 of 8 ITAAC Statement Design Commitment
- 7. The CNS provides the safety-related function of containment isolation for containment boundary integrity and provides a barrier against the release of fission products to the atmosphere.
Inspections/Tests/Analyses ii) Testing will be performed to demonstrate that remotely operated containment isolation valves close within the required response times.
Acceptance Criteria ii) The containment purge isolation valves (VFS-PL-V003, -V004, -V009, and -V010) close within 10 seconds, containment vacuum relief isolation valves (VFS-PL-V800A and -V800B) close within 30 seconds, SGS valves SGS-PL-V040A/B and SGS-PL-V057A/B are covered in subsection 2.2.4, Table 2.2.4-4 (item 11.b.ii) and all other containment isolation valves close within 60 seconds upon receipt of an actuation signal.
ITAAC Determination Basis Multiple ITAAC were performed to verify by tests that the Containment System (CNS) provides the safety-related function of containment isolation for containment boundary integrity and provides a barrier against the release of fission products to the atmosphere. Testing was performed to demonstrate that remotely operated containment isolation valves close within the required response times. The containment purge isolation valves (VFS-PL-V003, -V004, -V009, and -V010) close within 10 seconds, containment vacuum relief isolation valves (VFS-PL-V800A and -V800B) close within 30 seconds, steam generator system valves SGS-PL-V040A/B and SGS-PL-V057A/B are covered in the Combined License (COL) Appendix C (Reference 1) subsection 2.2.4, Table 2.2.4-4 (item 11.b.ii) included in consolidated ITAAC Index 250 and all other containment isolation valves close within 60 seconds upon receipt of an actuation signal. The VEGP Unit 3&4 Updated Final Safety Analysis Report (UFSAR)
(Reference 2) Table 6.2.3-1 identifies all remotely operated containment isolation valves.
Testing was performed in accordance with Unit 4 component test packages listed in References 3 through 13 to verify Containment isolation valve closure times.
Work orders listed in References 3 through 13 establish initial conditions with each Containment isolation valve in the open position. An actuation signal was generated by Protection and Safety Monitoring System (PMS) using the PMS Maintenance and Test Panel (MTP) to close each Containment isolation valve. Each Containment isolation valve closure is timed from the time the closed demand signal is generated until the valve is fully closed. The Containment isolation valve is verified locally closed by a person located at the valve.
U.S. Nuclear Regulatory Commission ND-23-0306 Enclosure Page 3 of 8 The completed Unit 4 component test results (References 3 through 13) confirm the containment purge isolation valves (VFS-PL-V003, -V004, -V009, and -V010) close within 10 seconds, containment vacuum relief isolation valves (VFS-PL-V800A and -V800B) close within 30 seconds, SGS valves SGS-PL-V040A/B and SGS-PL-V057A/B are covered in COL Appendix C subsection 2.2.4, Table 2.2.4-4 (item 11.b.ii) and all other containment isolation valves close within 60 seconds upon receipt of an actuation signal as shown in Attachment A.
Attachment A was generated to document the remotely operated containment isolation valves and the information contained in Attachment A was obtained from the VEGP Unit 3&4 Updated Final Safety Analysis Report (UFSAR) Table 6.2.3-1 and COL Appendix C.
References 3 through 13 are available for NRC inspection as part of ITAAC 2.2.01.07.ii Unit 4 Completion Package (Reference 14).
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 ITAAC findings associated with this ITAAC. The ITAAC completion review is documented in the ITAAC Completion Package for ITAAC 2.2.01.07.ii (Reference 14) and is available for NRC review.
ITAAC Completion Statement Based on the above information, SNC hereby notifies the NRC that ITAAC 2.2.01.07.ii was performed for VEGP Unit 4 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.
U.S. Nuclear Regulatory Commission ND-23-0306 Enclosure Page 4 of 8 References (available for NRC inspection)
- 1.
Combined License Vogtle Electric Generating Plant Unit 4 Appendix C Amendment 187
- 2.
VEGP 3&4 UFSAR Rev. 11.2 Table 6.2.3-1
- 3.
SV4-CNS-ITR-800108, Rev. 0, Unit 4 Compilation of CAS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 4.
SV4-CNS-ITR-801108, Rev. 0, Unit 4 Compilation of CCS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 5.
SV4-CNS-ITR-802108, Rev. 1, Unit 4 Compilation of CVS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 6.
SV4-CNS-ITR-803108, Rev. 0, Unit 4 Compilation of PSS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 7.
SV4-CNS-ITR-804108, Rev. 0, Unit 4 Compilation of PXS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 8.
SV4-CNS-ITR-805108, Rev. 0, Unit 4 Compilation of RNS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 9.
SV4-CNS-ITR-806108, Rev. 0, Unit 4 Compilation of SFS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 10. SV4-CNS-ITR-807108, Rev. 0, Unit 4 Compilation of SGS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 11. SV4-CNS-ITR-808108, Rev. 0, Unit 4 Compilation of VFS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 12. SV4-CNS-ITR-809108, Rev. 0, Unit 4 Compilation of VWS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 13. SV4-CNS-ITR-810108, Rev. 0, Unit 4 Compilation of WLS Containment Isolation Valve Testing: ITAAC 2.2.01.07.ii NRC Index Number 108
- 14. 2.2.01.07.ii-U4-CP-Rev0, ITAAC Completion Package
U.S. Nuclear Regulatory Commission ND-23-0306 Enclosure Page 5 of 8 Attachment A Equipment Name(1)
Tag No.(2)
Required Valve Closure Time (3)
(seconds)
Actual Valve Closure Time (seconds)
Test Procedure Instrument Air Supply Outside Containment Isolation Valve CAS-PL-V014 60 (1) 2.84 B-GEN-ITPCI-039-F247 Component Cooling Water System (CCS)
Containment Isolation Motor-operated Valve (MOV) - Inlet Line Outside Reactor Containment (ORC)
CCS-PL-V200 60 (1) 35.84 B-GEN-ITPCI-039-F248 CCS Containment Isolation MOV - Outlet Line IRC CCS-PL-V207 60 (1) 39.84 B-GEN-ITPCI-039-F249 CCS Containment Isolation MOV - Outlet Line ORC CCS-PL-V208 60 (1) 35.84 B-GEN-ITPCI-039-F250 CVS Letdown Containment Isolation Valve CVS-PL-V045 60 (1) 20.84 B-GEN-ITPCI-039-F254 CVS Letdown Containment Isolation Valve CVS-PL-V047 60 (1) 14.84 B-GEN-ITPCI-039-F255 CVS Makeup Line Containment Isolation Motor-operated Valve CVS-PL-V090 60 (1) ( 30) (2) 15.84 B-GEN-ITPCI-039-F257 CVS Makeup Line Containment Isolation Motor-operated Valve CVS-PL-V091 60 (1) ( 30) (2) 23.84 B-GEN-ITPCI-039-F258 CVS Zinc Injection Containment Isolation Valve ORC CVS-PL-V092 60 (1) 5.84 B-GEN-ITPCI-039-F259 CVS Zinc Injection Containment Isolation Valve IRC CVS-PL-V094 60 (1) 5.84 B-GEN-ITPCI-039-F260 CVS Hydrogen Injection Containment Isolation Valve ORC CVS-PL-V219 60 (1) 6.84 B-GEN-ITPCI-039-F263 Containment Air Sample Containment Isolation Valve Inside Reactor Containment (IRC)
PSS-PL-V008 60 (1) 27.84 B-GEN-ITPCI-039-F305 Liquid Sample Line Containment Isolation Valve IRC PSS-PL-V010A 60 (1) 1.84 B-GEN-ITPCI-039-F306 Liquid Sample Line Containment Isolation Valve IRC PSS-PL-V010B 60 (1) 1.84 B-GEN-ITPCI-039-F307
U.S. Nuclear Regulatory Commission ND-23-0306 Enclosure Page 6 of 8 Attachment A (cont.)
Equipment Name(1)
Tag No.(2)
Required Valve Closure Time (3)
(seconds)
Actual Valve Closure Time (seconds)
Test Procedure Liquid Sample Line Containment Isolation Valve Outside Reactor Containment (ORC)
PSS-PL-V011A 60 (1) 7.84 B-GEN-ITPCI-039-F308 Liquid Sample Line Containment Isolation Valve ORC PSS-PL-V011B 60 (1) 8.84 B-GEN-ITPCI-039-F309 Sample Return Line Containment Isolation Valve ORC PSS-PL-V023 60 (1) 5.84 B-GEN-ITPCI-039-F310 Sample Return Containment Isolation Valve IRC PSS-PL-V024 60 (1) 2.84 B-GEN-ITPCI-039-F311 Air Sample Line Containment Isolation Valve ORC PSS-PL-V046 60 (1) 5.84 B-GEN-ITPCI-039-F312 Nitrogen Supply Containment Isolation Valve PXS-PL-V042 60 (1) 5.84 B-GEN-ITPCI-039-F321 RCS Outer Hot Leg Suction Motor-operated Isolation Valve RNS-PL-V002A 60 (1) 33.84 B-GEN-ITPCI-039-F415 RCS Outer Hot Leg Suction Motor-operated Isolation Valve RNS-PL-V002B 60 (1) 33.84 B-GEN-ITPCI-039-F416 RNS Discharge Motor-operated Containment Isolation Valve RNS-PL-V011 60 (1) 28.84 B-GEN-ITPCI-039-F417 RNS Suction Header Motor-operated Containment Isolation Valve RNS-PL-V022 60 (1) 26.84 B-GEN-ITPCI-039-F418 RNS Suction from IRWST Motor-operated Isolation Valve RNS-PL-V023 60 (1) 32.84 B-GEN-ITPCI-039-F419 RNS Return from Chemical and Volume Control System (CVS)
Containment Isolation Valve RNS-PL-V061 60 (1) 4.84 B-GEN-ITPCI-039-F420 SFS Suction Line Containment Isolation MOV - IRC SFS-PL-V034 60 (1) 20.84 B-GEN-ITPCI-039-F423 SFS Suction Line Containment Isolation MOV - ORC SFS-PL-V035 60 (1) 22.84 B-GEN-ITPCI-039-F424
U.S. Nuclear Regulatory Commission ND-23-0306 Enclosure Page 7 of 8 Attachment A (cont.)
Equipment Name(1)
Tag No.(2)
Required Valve Closure Time (3)
(seconds)
Actual Valve Closure Time (seconds)
Test Procedure SFS Discharge Line Containment Isolation MOV - ORC SFS-PL-V038 60 (1) 16.84 B-GEN-ITPCI-039-F425 Power-operated Relief Valve Block Motor-operated Valve Steam Generator 01 SGS-PL-V027A
< 44 (1) 25.84 B-GEN-ITPCI-039-F426 Power-operated Relief Valve Block Motor-operated Valve Steam Generator 02 SGS-PL-V027B
< 44 (1) 24.84 B-GEN-ITPCI-039-F427 Steam Line Condensate Drain Isolation Valve SGS-PL-V036A 60 (1) 4.84 B-GEN-ITPCI-039-F428 Steam Line Condensate Drain Isolation Valve SGS-PL-V036B 60 (1) 4.84 B-GEN-ITPCI-039-F429 Main Steam Line Isolation Valve SGS-PL-V040A
< 5 (1) 4.62 B-GEN-ITPCI-039-F430-433 Main Steam Line Isolation Valve SGS-PL-V040B
< 5 (1) 4.68 B-GEN-ITPCI-039-F434-437 Main Feedwater Isolation Valve SGS-PL-V057A
< 5 (1) 4.72 B-GEN-ITPCI-039-F438-441 Main Feedwater Isolation Valve SGS-PL-V057B
< 5 (1) 4.56 B-GEN-ITPCI-039-F442-445 Startup Feedwater Isolation Motor-operated Valve SGS-PL-V067A 60 (1) 32.84 B-GEN-ITPCI-039-F446 Startup Feedwater Isolation Motor-operated Valve SGS-PL-V067B 60 (1) 31.84 B-GEN-ITPCI-039-F447 Steam Generator Blowdown Isolation Valve SGS-PL-V074A 60 (1) 7.84 B-GEN-ITPCI-039-F448 Steam Generator Blowdown Isolation Valve SGS-PL-V074B 60 (1) 8.84 B-GEN-ITPCI-039-F449 Main Steam Isolation Valve Bypass Isolation SGS-PL-V240A 60 (1) 6.84 B-GEN-ITPCI-039-F456-457
U.S. Nuclear Regulatory Commission ND-23-0306 Enclosure Page 8 of 8 Attachment A (cont.)
Equipment Name(1)
Tag No.(2)
Required Valve Closure Time (3)
(seconds)
Actual Valve Closure Time (seconds)
Test Procedure Main Steam Isolation Valve Bypass Isolation SGS-PL-V240B 60 (1) 7.84 B-GEN-ITPCI-039-F458-459 Containment Purge Inlet Containment Isolation Valve - ORC VFS-PL-V003 10 (1) 3.84 B-GEN-ITPCI-039-F478 Containment Purge Inlet Containment Isolation Valve - IRC VFS-PL-V004 10 (1) 3.84 B-GEN-ITPCI-039-F479 Containment Purge Discharge Containment Isolation Valve - IRC VFS-PL-V009 10 (1) 3.84 B-GEN-ITPCI-039-F480 Containment Purge Discharge Containment Isolation Valve - ORC VFS-PL-V010 10 (1) 2.84 B-GEN-ITPCI-039-F481 Vacuum Relief Containment Isolation A MOV - ORC VFS-PL-V800A 30 (1) 19.84 B-GEN-ITPCI-039-F482 Vacuum Relief Containment Isolation B MOV - ORC VFS-PL-V800B 30 (1) 20.84 B-GEN-ITPCI-039-F483 Fan Coolers Supply Containment Isolation Valve - ORC VWS-PL-V058 60 (1) 3.84 B-GEN-ITPCI-039-F484 Fan Coolers Return Containment Isolation Valve - IRC VWS-PL-V082 60 (1) 3.84 B-GEN-ITPCI-039-F485 Fan Coolers Return Containment Isolation Valve - ORC VWS-PL-V086 60 (1) 3.84 B-GEN-ITPCI-039-F486 Sump Discharge Containment Isolation Valve - IRC WLS-PL-V055 60 (1) 2.84 B-GEN-ITPCI-039-F487 Sump Discharge Containment Isolation Valve - ORC WLS-PL-V057 60 (1) 3.84 B-GEN-ITPCI-039-F488 Reactor Coolant Drain Tank (RCDT) Gas Outlet Containment Isolation Valve - IRC WLS-PL-V067 60 (1) 6.84 B-GEN-ITPCI-039-F489 RCDT Gas Outlet Containment Isolation Valve - ORC WLS-PL-V068 60 (1) 9.84 B-GEN-ITPCI-039-F490 (1) From U4 COL Appendix C.
(2) From VEGP Unit 3&4 Updated Final Safety Analysis Report (UFSAR) Table 6.2.3-1.
(3) Required Valve Closure time will be the minimum value listed.