ML18180A374
| ML18180A374 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 06/29/2018 |
| From: | NRC |
| To: | NRC/NRO/DNRL/LB4 |
| References | |
| Download: ML18180A374 (3) | |
Text
Vogtle PEmails From: Habib, Donald Sent: Friday, June 29, 2018 4:13 PM To: Haggerty, Neil; 'Hicks, Thomas E.'; 'Amundson, Theodore Edwin'; Redd, Jason P.
Cc: WASPARKM@southernco.com; Amy Aughtman SNC; Chamberlain, Amy Christine; Dixon-Herrity, Jennifer; Kavanagh, Kerri; Patel, Chandu; Prescott, Paul; Bradford, Anna; Vogtle PEmails
Subject:
Discussion Topic for Future Public Meeting (Tier 2* - ITP)
Neil et al. -
The staff would like to discuss the discussion topic at the public meeting on July 5.
Thanks Don Habib Project Manager NRO/DLSE, Licensing Branch 4 O-8D13 301-415-1035 In Vogtle Electric Generating Plants (VGEPs) Units 3 and 4 Final Safety Analysis Report (FSAR), Chapter 14, Initial Test Program, Revision 6, it states that the overall objective of the initial test program is to demonstrate that the plant has been constructed as designed, that the systems perform consistent with the plant design, and that activities culminating in operation at full licensed power including initial fuel load, initial criticality, and power ascension are performed in a controlled and safe manner.
Special tests to further establish a unique phenomenological performance parameter of the AP1000 design features beyond testing performed for Design Certification of the AP600 and that will not change from plant to plant, are performed for the first plant only. Because of the standardization of the AP1000 design, these special tests (designated as first plant only tests) are not required on follow plants. These first plant only tests are identified in the individual test descriptions (See Subsections 14.2.9 and 14.2.10 of the VEGP 3&4 FSAR). The following is a listing of the first plant only tests, and the corresponding section in which they appear:
First Plant Only Test Section IRWST Heatup Test 14.2.9.1.3 Item (h)
Pressurizer Surge Line Stratification Evaluation 14.2.9.1.7 Item (d)
Reactor Vessel Internals Vibration Testing 14.2.9.1.9 - Prototype Test
[Natural Circulation Tests]* 14.2.10.3.6, [14.2.10.3.7]*
Rod Cluster Control Assembly Out of Bank Measurements 14.2.10.4.6 Load Follow Demonstration 14.2.10.4.22 Other special tests which further establish a unique phenomenological performance parameter of theAP1000 design features beyond testing performed for Design Certification for the AP600 and that will not change from plant to plant, are performed for the first three plants. Because of the standardization of the AP1000 design, once these special tests have affirmed consistent passive system function they are not required on follow plants. These tests required on the first three plants are identified in the individual test descriptions (See Subsection 14.2.9). The following is a listing of the tests required on the first three plants, and the corresponding section in which they appear.
1
First Three Plant Tests Section Core Makeup Tank Heated Recirculation Tests 14.2.9.1.3 Items (k) and (w)
ADS Blowdown Test 14.2.9.1.3 Item (s)
These tests are Tier 2*, as described in the VEGP 3&4 FSAR.
In letter dated December 21, 2017, Southern Nuclear Operating Company Vogtle Electric Generating Plant Units 3 and 4 Request for License Amendment and Exemption: Changes to Tier2* Departure Evaluation Process (LAR-17-037), the licensee requests to apply the existing departure evaluation process for Tier 2 departures in the evaluation of certain Tier 2* departures. This would entail an exemption from certain change requirements in 10 CFR Part 52, Appendix D, to allow departures form Tier 2* information evaluated against criteria proposed in a new License Condition without a license amendment by expanding the applicability of the existing Tier 2 evaluation process.
The staff did not identify in the VEGP 3&4 FSAR chapter, Tier 1 Revision 5, any Tier 1 Inspection, Tests, Analyses and Acceptance Criteria (ITAAC), with the exception of the natural circulation test, that address the first-plant-only and third-plant-only tests described to be performed in accordance with Tier 2.
The staff is concerned that SNC would be able to make certain changes to the Tier 2* test descriptions without NRC approval. In particular, where a change to a Tier 2* test description would influence the outcome of the test such that it would affect whether the corresponding Tier 1 acceptance criteria would be met, the change should require NRC approval.
The staff would like SNC to discuss either revising SNCs proposed screening criteria license condition to assure that such a change would come to NRC for approval, or explaining why it is not necessary.
2
Hearing Identifier: Vogtle_COL_Docs_Public Email Number: 308 Mail Envelope Properties (BY1PR09MB0935C47AD6B22942E791D94F974E0)
Subject:
Discussion Topic for Future Public Meeting (Tier 2* - ITP)
Sent Date: 6/29/2018 4:13:01 PM Received Date: 6/29/2018 4:13:06 PM From: Habib, Donald Created By: Donald.Habib@nrc.gov Recipients:
"WASPARKM@southernco.com" <WASPARKM@southernco.com>
Tracking Status: None "Amy Aughtman SNC" <agaughtm@southernco.com>
Tracking Status: None "Chamberlain, Amy Christine" <ACCHAMBE@southernco.com>
Tracking Status: None "Dixon-Herrity, Jennifer" <Jennifer.Dixon-Herrity@nrc.gov>
Tracking Status: None "Kavanagh, Kerri" <Kerri.Kavanagh@nrc.gov>
Tracking Status: None "Patel, Chandu" <Chandu.Patel@nrc.gov>
Tracking Status: None "Prescott, Paul" <Paul.Prescott@nrc.gov>
Tracking Status: None "Bradford, Anna" <Anna.Bradford@nrc.gov>
Tracking Status: None "Vogtle PEmails" <Vogtle.PEmails@nrc.gov>
Tracking Status: None "Haggerty, Neil" <X2NHAGGE@SOUTHERNCO.COM>
Tracking Status: None
"'Hicks, Thomas E.'" <X2TEHICK@southernco.com>
Tracking Status: None
"'Amundson, Theodore Edwin'" <X2TAMUNS@southernco.com>
Tracking Status: None "Redd, Jason P." <JPREDD@southernco.com>
Tracking Status: None Post Office: BY1PR09MB0935.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 4870 6/29/2018 4:13:06 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:
Recipients Received: