ML12115A311

Meeting Slides: 04/24/2012 Meeting with Xcel Energy NFPA 805 Presubmittal - Prairie Island Nuclear Generating Plant

ML12115A311
Person / Time
Site:	Prairie Island
Issue date:	04/24/2012
From:	Xcel Energy
To:	Office of Nuclear Reactor Regulation
Wengert T
References
Download: ML12115A311 (25)

Text

NFPA 805 LAR Pre-Submittal Meeting 1

Attendees Carl Lane Engineering Programs Manager Mark McKeown NFPA 805 Project Manager Rick Rohrer Manager of Fleet Program Engineering Michelle Kelly NFPA 805 Engineering Lead Gene Eckholt Manager of Nuclear Projects Licensing Amy Hazelhoff NFPA 805 Licensing Lead 2

Agenda Meeting Purpose NFPA 805 Schedule NFPA 805 Transition Project Overview LAR Transition Tasks NFPA 805 Modifications LAR Implementation Fire PRA Project Challenges

• Note - LAR is in development and technical information provided is preliminary 3

Meeting Purpose Discuss the PINGP NFPA 805 Transition Status Discuss project challenges Gain insights from NRC on NFPA 805 Transition 4

NFPA 805 Schedule

Background

Commitment letter submitted June 2011 LAR Staggered Approach FPRA Peer Review Scheduled to begin May 7, 2012 Commitment to submit LAR by September 30, 2012 Currently on schedule 5

NFPA 805 Transition Project Overview Overview of NFPA 805 LAR PINGP following Revision 1L of NEI 04-02 template LAR development and internal review activities are on-going Plant Operating Review Sub-Committee created 6 PORC Sub-COM reviews planned One PORC Sub-COM review completed Second PORC Sub-COM review scheduled for April 25, 2012 Additional four PORC Sub-COM reviews scheduled 6

NFPA 805 Transition Project Overview Fire Protection Program Transition License Condition being revised Technical Specification being revised Minor Administrative Change to TS Reviewing existing exemptions (Attachment K)

Expecting items for NRC approval (Attachment L)

Expecting items for clarification (Attachment T) 7

NFPA 805 Transition Project Overview NFPA 805 Chapter 3 Compliance Attachment A, Table B-1 (Fundamental FP Program Transition)

Compliance basis:

(95) Complies (6) Complies with Item for Implementation (11) Complies by previous NRC approval (7) Complies with use of EEEEs (1) Submit for NRC Approval (0) Complies with Clarification 8

NFPA 805 Transition Project Overview Nuclear Safety Capability Assessment Attachment B, Table B-2 Performed using NEI 00-01, Revision 1 Gap Analysis comparing to NEI 00-01, Revision 2 being performed Guidance required additional reviews to current Appendix R Analysis 9

NFPA 805 Transition Project Overview Non-Power Operations Review in progress using NEI 04-02, Rev 2 guidance and FAQ 07-0040 Work in progress for NPO model incorporation into SAFE/GENESIS Success paths have been identified Component list by key safety function High Risk Evolutions have been identified Plant Operating State Pinch Points identified Recommendations to manage Fire Risk 10

NFPA 805 Transition Project Overview Radioactive Release Report is complete, in final review using NEI 04-02, Rev 2 guidance and FAQ 09-0056 Plant evaluated on a fire area basis Credit engineering controls for gaseous and liquid effluents Pre-Fire plans and training material to be developed/revised to clarify monitoring and control requirements (S-3 items) 11

NFPA 805 Transition Project Overview Monitoring Program Following FAQ 10-0059, Rev 5 Scoping systems and components to be monitored based on results of FPRA and Defense-in-Depth analysis Required components to be added to Maintenance Rule Program 12

NFPA 805 Transition Project Overview Recovery Actions Review in progress using NEI 04-02, Rev 2 and FAQ 07-0030 Significantly reduced Recovery Actions

~50% Removed 13

NFPA 805 Transition Project Overview Fire Area Transition (Fire Area by Fire Area Report)

Attachment C, Table B-3 Review of EEEEs, including GL 86-10 evaluations and 13 exemptions was performed Of the current ~134 EEEEs, 62 EEEEs will be eliminated 9 Exemptions were eliminated Describes resolution of variances from deterministic requirements

~150 VFDRs 14

NFPA 805 Transition Project Overview Existing Licensing Actions Transition (Attachment K)

PINGP has total of 13 Appendix R exemptions 9 exemptions will be eliminated utilizing the Performance Based-Risk Informed compliance strategy 4 exemptions transition as compliant with 10 CFR 50.48(c) 15

NFPA 805 Transition Project Overview NFPA 805 Chapter 3 Approvals (Attachment L)

NFPA 805 Section 3.5.16 - Use of fire water system for other purposes not fire protection related 16

NFPA 805 Transition Project Overview Clarification of Prior NRC Approvals (Attachment T)

Use of exemption for Hi/Lo Pressure interface valves for multiple fire areas per original request Clarification of manual action to use breaker switch instead of removing fuses for PORVs 17

NFPA 805 Transition Project Overview NFPA 805 Major Modifications (Preliminary)

Install New Cables U1 Bus 16 New Cable OCT U2 Design (FA 58, Design (FA 20) 73, 66, 7, 59, 74)

Incipient Fire Detection Design Electrical Safeguards Bus Design (FA 18) (FA 20, 58, 73)

Fire Detection Code Compliance Fire Suppression Code Compliance Hot SD Panel Design (FA 31 & Suction Press Trip Charging Pumps

32) Install (FA 18)

Cable Wrap Design (FA 18) Cable Protection Install (FA 69) 18

NFPA 805 Transition Project Overview LAR Implementation Plans (Attachment S)

Table S-1 items - No completed modifications Table S-2 items - Requesting 2 full operating cycles post SE to implement modifications 2018 refueling outage for full mod implementation Table S-3 items - 6 months post SE to implement training/procedure changes

• Note - LAR implementation plans assume issuance of an SE within two years of submittal date (2014) 19

NFPA 805 Transition Project Overview Fire PRA FPRA built on high quality Internal Events Model Internal events model peer reviewed to RG 1.200 Internal flooding still being developed 20

NFPA 805 Transition Project Overview Status of FPRA Initial analysis complete Refined HRA and Fire Modeling in progress FPRA Peer Review Scheduled for May 7 - May 11 Findings and Observations expected ~June 2012 21

NFPA 805 Transition Project Overview FPRA Unique Approaches MSOs explicitly modeled using PRISM More rigorous than normal approach of expert team review Expert panel review was also done Use of Alternate Methods No alternate methods used in the PINGP FPRA 22

NFPA 805 Transition Project Overview Fire Modeling No deviations taken Using established methodologies NUREG-1805 Fire Dynamic Tools Spreadsheets FDS Limitations and cautions of the methodologies considered 23

Conclusion LAR submittal by 9/30/12 Challenges FPRA status Uncertainty in LAR Scope Evolving NRC expectations New expectations from November 2011 being addressed in LAR NFPA 805 LAR scope has been frozen Necessary to ensure LAR is completed by 9/30/12 Evaluation of OE continues, but may not be addressed in LAR 24

Questions and Discussion 25