ML21200A147

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Nextera/Fpl Meeting Slides for July 22, 2021 Partially Closed Meeting Concerning Control Room Digital Modernization - Closed Public
ML21200A147
Person / Time
Site: Turkey Point  NextEra Energy icon.png
Issue date: 07/22/2021
From:
Florida Power & Light Co
To:
Plant Licensing Branch II
Brown E
Shared Package
ML21200A145 List:
References
Download: ML21200A147 (22)


Text

1 Turkey Point Unit 3 and Unit 4 Reactor Protection System Engineered Safety Feature Actuation System Nuclear Instrumentation System Replacements Non-proprietary information suitable for public disclosure Safety System Replacement Project LAR NRC 6th Pre-submittal Meeting Telecon July 22, 2021 CLOSED MEETING

2 Agenda - Closed Portion

  • Diverse Actuation System Architecture and Reliability
  • Modification Code Year Discussion for LAR
  • Project LAR and Life Cycle Update
  • Action Items/Follow-up Non-proprietary information suitable for public disclosure

3 Diverse Actuation System (DAS) Background Diverse Actuation System Non-proprietary information suitable for public disclosure

4 DCS/DAS Architecture (Conceptual)

Non-proprietary information suitable for public disclosure

5 DAS System Inputs (Conceptual)

Non-proprietary information suitable for public disclosure

6 DAS System Output Logic (Conceptual)

Non-proprietary information suitable for public disclosure

7 DCS/DAS Reliability DCS Experience Reliability Features Non-proprietary information suitable for public disclosure

8 DCS Application Features DAS Application Features end of topic DCS/DAS Reliability Non-proprietary information suitable for public disclosure

9 Leak-Before Break Analysis for PTN 3&4 D3 Report in accordance with BTP 7-19, Rev 8 Large Break LOCA Event (UFSAR Section 14.3.2.1)

- Automatic DAS actuation not required by D3 because of crediting Leak-Before Break (LBB)

Supported by NRC Safety Evaluation Report (ML19310D777),

approved Dec. 4, 2019 for Section 4.7.3 (ML19310D777), LBB Analysis for Reactor Coolant System Piping and 4.7.4, LBB Analysis for Class 1 Aux Piping (ADAMS No. ML19191A057)

The evaluation addresses all potential pipe breaks sized 10 inches or above.

Review of primary piping identified no intermediate pipe sizes susceptible to breaks or cracking between 4 and 10 inches.

Non-proprietary information suitable for public disclosure

10 Leak-Before Break Analysis for PTN 3&4 D3 Report Large Break LOCA Event All piping locations considered in the LBB evaluation, approved by NRC, exhibit a minimum leakage rate of 10 GPM.

NUREG-1061 Vol. 3 recommends that the leakage detection system be capable of measuring 1/10th of the minimum leakage rate. TP 3&4 plant leak detection capability SER approved at 1 GPM.

Small Break LOCA Event (UFSAR Section 14.3.2.2) end of topic Non-proprietary information suitable for public disclosure

11 Modification Code Year Discussion in RPS/ESFAS/NIS LAR Major Codes and Standards Commitment Listing No.

Code and Standard No.

Title NUREG-0800 Rev 6 Chapter 7 Appendix 7.1-A,C,D or Chapter 3.10 (2016) or 3.11 (2007)

Project Commitment Justification:

Non-proprietary information suitable for public disclosure

12 No.

Code and Standard No.

Title NUREG-0800 Rev 6 Chapter 7 Appendix 7.1-A,C,D or Chapter 3.10 (2016) or 3.11 (2007)

Project Commitment Justification:

Modification Code Year Discussion in RPS/ESFAS/NIS LAR Major Codes and Standards Commitment Listing (continued)

Non-proprietary information suitable for public disclosure

13 No.

Code and Standard No.

Title NUREG-0800 Rev 6 Chapter 7 Appendix 7.1-A,C,D or Chapter 3.10 (2016) or 3.11 (2007)

Project Commitment Justification:

Modification Code Year Discussion in RPS/ESFAS/NIS LAR Major Codes and Standards Commitment Listing (continued)

Non-proprietary information suitable for public disclosure

14 end of topic Modification Code Year Discussion in RPS/ESFAS/NIS LAR Major Codes and Standards Commitment Listing (continued)

No.

Code and Standard No.

Title NUREG-0800 or ISG-06 R/2 Project Commitments Justification Non-proprietary information suitable for public disclosure

15 end of topic Modification Code Year Discussion in RPS/ESFAS/NIS LAR Major Codes and Standards Commitment Listing (continued)

No.

Code and Standard No.

Title NUREG-0800 or ISG-06 R/2 Project Commitments Justification Non-proprietary information suitable for public disclosure

16 Project LAR and Lifecycle Schedule LAR Submittal target Schedule is September, 2021 Design Phase

- August 2021 through November 2021 Equipment Qualification Schedule

- July 2021 through January 2022 Implementation Phase

- October 2021 through April 2022 Factory Acceptant Testing

- May 2022 through October 2022 Human Factor Engineering (HFE)

- April 2021 through October 2022 Non-proprietary information suitable for public disclosure

17 Action Items/Follow-Up Future Meeting Subjects Open items Equipment replacement scope outside Tricon SER Command Prioritization Commercial grade dedication/qualification status Human Factors Engineering and simulator schedule Implementation Items Attachments to the LAR Remaining Follow-up Items Non-proprietary information suitable for public disclosure

18 Questions?

Non-proprietary information suitable for public disclosure

19 Acronym List Non-proprietary information suitable for public disclosure ATWS Mitigation System Actuation Circuitry AMSAC Alternate Review AR Anticipated Transient Without Scram ATWS Branch Technical Position BTP Control Processor CP Diverse Actuation System DAS Defense-in-Depth and Diversity D3 Distributed Control System DCS Engineered Safety Features Actuation System ESFAS Florida Power and Light FPL Feedwater Isolation FWI Human Factors engineering HFE Instrumentation and Control I&C

20 Acronym List (continued)

Non-proprietary information suitable for public disclosure Institute of Electrical and Electronic engineers IEEE Interim Staff Guidance ISG Improved Technical Specifications ITS Leak-Before-Break LBB License Amendment Request LAR Nuclear Instrumentation System NIS Nuclear Regulatory Commission NRC Operator Workstation OWS Regulatory Guide RG Quality Assurance QA

21 Reactor Protection System RPS Residual Heat Removal RHR Safety Evaluation Report SER Safety Injection SI Safety Related SR Safety Requirements Memoranda SRM Standard Review Plan SRP System Requirements Specification SyRS Safety Visual Display Unit SVDU Software Common Cause Failure SWCCF Subsequent License Renewal SLR Turkey Point PTN Vendor Oversight Program VOP Non-proprietary information suitable for public disclosure Acronym List (continued)

22 Any reproduction, alteration, transmission to any third party or publication in whole or in part of this document and/or its content is prohibited unless Framatome has provided its prior and written consent.

This document and any information it contains shall not be used for any other purpose than the one for which they were provided. Legal action may be taken against any infringer and/or any person breaching the aforementioned obligations