ND-18-0326, ITAAC Closure Notification on Completion of ITAAC 2.2.03.08c.xiv (Index Number 199)
| ML18082A064 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 03/23/2018 |
| From: | Yox M Southern Nuclear Operating Co |
| To: | Document Control Desk, Office of New Reactors |
| References | |
| ITAAC 2.2.03.08c.xiv, ND-18-0326 | |
| Download: ML18082A064 (6) | |
Text
Southern Nuclear HAR 2 3 2018 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 7825 River Road Waynesboro, GA 30830 706-848-8459 tei 410-474-8587 cell myox@southernco.com ND-18-0326 10CFR 52.99(c)(1)
Southern Nuclear Operating Company Vogtle Electric Generating Plant Unit3 ITAAC Closure Notification on Completion of ITAAC 2.2.03.0Bc.xiv [Index Number 1991 Ladies and Gentlemen:
In accordance with 10 CFR 52.99(c)(1), the purpose of this letter is to notifythe Nuclear Regulatory Commission (NRC) ofthe completion of Vogtle Electric Generating Plant (VEGP)
Unit 3 Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC) Item 2.2.03.08c.xiv [Index Number 199]for verifying that the aluminum surfaces ofthe Nuclear Instrumentation System excore detectors are encased in a watertight stainless steel or titanium housing. 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 under10 CFR Part52," 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 inthe Federal Register per 10 CFR 52.99.
If there are any questions, please contact Tom Petrak at 706-848-1575.
Respectfully submitted, Michael J. Yox Regulatory Affairs Director Vogtle 3 &4
Enclosure:
Vogtle Electric Generating Plant (VEGP) Unit3 Completion of ITAAC 2.2.03.08c.xiv [Index Number 199]
MJY/RAS/amw
U.S. Nuclear Regulatory Commission ND-18-0326 Page 2 of 3 To:
Southern Nuclear Operating Company/ Georgia Power Company Mr. D. A. Bost (w/o enclosures)
Mr. M. D. Rauckhorst (w/o enclosures)
Mr. M. D. Meier Mr. D. H. Jones (w/o enclosures)
Mr. D. L. McKinney Mr. M. J. Vox Mr. D. L. Fulton Mr. J. B. Klecha Mr. G. Chick Mr. F. H. Willis Ms. A. L. Pugh Mr. A. 8. Parton Mr. W. A. Sparkman Mr. C. E. Morrow Ms. K. M. Stacy Mr. M. K. Washington Mr. J. P. Redd Ms. A. C. Chamberlain Mr. D. R. Culver Mr. T. G. Petrak Document Services RTYPE: VND.LI.L06 File AR.01.02.06 cc:
Nuclear Reouiatorv Commission Mr. W. Jones (w/o enclosures)
Ms. J. M. Heisserer Mr. C. P. Patel Mr. M. E. Emstes Mr. G. J. Khouri Mr. T. E. Chandler Ms. S. E. Temple Ms. P. Braxton Mr. N. D. Karlovich Mr. A. J. Lerch Mr. C. J. Even Mr. F. D. Brown Mr. B. J. Kemker Ms. A. E. Rivera-Varona Ms. L. A. Kent Mr. P. B. Donnelly Oalethoroe Power Corporation Mr. R. B. Brinkman
U.S. Nuclear Regulatory Commission ND-18-0326 Page 3 of 3 Municipal Electric Authority of Georgia Mr. J. E. Fuller Mr. 8. M. Jackson Daiton Utilities Mr. T. Bundros Westinahouse Electric Company. LLC Dr. L. Oriani (w/o enclosures)
Mr. D. C. Durham (w/o enclosures)
Mr. M. M. Corletti Ms. L. G. Iller Mr. D. Hawkins Ms. J. Monahan Mr. J. L. Coward Ms. N. E. Deangelis Other Mr. J. E. Hesler, Bechtel Power Corporation Ms. L. Matis, Tetra Tech NUS, Inc.
Dr. W. R. Jacobs, Jr., Ph.D., CDS Associates, Inc.
Mr. 8. Roetger, Georgia Public Service Commission Ms. 8. W. Kernizan, Georgia Public Sen/ice Commission Mr. K. C. Greene, Troutman Sanders Mr. 8. Blanton, Balch Bingham
U.S. Nuclear Regulatory Commission ND-18-0326 Enclosure Page 1 of 3 Southern Nuclear Operating Company ND-18-0326 Enclosure Vogtle Electric Generating Plant (VEGP) Unit 3 Completion of ITAAC 2.2.03.08c.xiv [Index Number 199]
U.S. Nuclear Regulatory Commission ND-18-0326 Enclosure Page 2 of 3 ITAAC Statement Design Commitment:
S.c)The PXS provides PCS makeup, boration, and safety injection duringdesign basis events.
insoections. Tests. Anaivses:
xiv) inspection will be conducted ofthe excore (source range, intermediate range, and power range) detectors.
Acceptance Criteria:
xiv) A reportexists and concludes that the aluminum surfaces ofthe excore detectors are encased in a watertight stainless steel or titanium housing.
ITAAC Determination Basis Multiple Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC) are performed to demonstrate that the Passive Core Cooling System (PXS) provides Reactor Coolant System (PCS) makeup, boration, and safety injection during design basis events. Thesubject ITAAC requires inspections ofthe excore(source range, intermediate range,and power range) detectors to verify aluminum surfaces ofthe excore detectors are encased in a watertight stainless steel or titanium housing.
The Nuclear Instrumentation System (NIS) excore source range, intermediate range, and power range detectors' technical manual material specifications were visually inspected to verify that the aluminum surfaces of the excore detectors are encased in a stainless steel or titanium housing. Theinspection concluded thatall the NIS excore detectors' aluminum surfacesare encased in titanium housing.
Additionally, helium leak rate testingwas performed bythe vendoron each ofthe excore source range, intermediate range, and power rangedetectors to demonstrate thatthe excore detectors are encased in a watertight housing. Correlations werethen made between gaseous helium leakageand equivalent liquid waterleakagebased on the viscosity and surfacetension differences between the two fluids. The correlations accounted for design basis accident pressure and temperature and considered the makeup ofreactor coolant fluid compared to liquid water. Thecorrelations showed thata helium leak rate of s 1 x10" standard cubic centimeters per second (std cc/sec), the vendortest acceptance criteria, would result in no liquid water leakage into the housing. Inspection ofthe vendorhelium leak rate test results showed that all excore detector leakage rates were ^ 8.7 x10" std cc/sec, concluding that the excore detectors are encased in watertight housing.
The results of the inspections are documented inthe NIS Excore Detector Inspection Report (Reference 1). The results ofthe inspections conclude thatthe aluminum surfaces ofthe excore detectors are encased in a watertight stainless steel or titanium housing.
U.S. Nuclear Regulatory Commission ND-18-0326 Enclosure Page 3 of 3 ITAAC Finding Review Inaccordance with plant procedures for ITAAC completion, Southern Nuclear Operating Company (SNC) performed a review of all ITAAC findings pertaining to the subject ITAAC and associated corrective actions. This review found that there are no relevant ITAAC findings associated withthis ITAAC. The ITAAC finding review is included in the Vogtle Unit 3 ITAAC Completion Package for ITAAC 2.2.03.08c.xiv (Reference 2) and available for NRC inspection.
ITAAC Completion Statement Based on the above information,SNC hereby notifiesthe NRCthat ITAAC 2.2.03.08c.xiv was performed forVogtle Unit 3 and that the prescribed acceptance criteria are met. Systems, structures, and components verified as part ofthis ITAAC are being maintained intheir as-designed, ITAAC compliant condition in accordance with approvedplantprogramsand procedures.
References (available for NRC inspection)
- 1. SV3-JE92-J0I-001, Revision 0, NIS Excore Detector Unit3 ITAAC 2.2.03.08c.xiv Inspection Report 2.
ITAAC Completion Package No. 2.2.03.08c.xiv-U3-CP-Rev 0 3.
NEI 08-01, IndustryGuideline for the ITAAC Closure Process Under 10 CFR Part 52