ML18051A175

Pre-Application Meeting License Amendment for TSTF-425 Relocation of Specific Surveillance Frequency Requirements to a Licensee Controlled Program Xcel Energy 2/20/2018

ML18051A175
Person / Time
Site:	Prairie Island
Issue date:	02/20/2018
From:	Northern States Power Co, Xcel Energy
To:	Robert Kuntz Plant Licensing Branch III
Kuntz R
References
Download: ML18051A175 (12)

Text

Pre-Application Meeting License Amendment for TSTF-425 Relocation of Specific Surveillance Frequency Requirements to a Licensee Controlled Program Xcel Energy (XE)

Prairie Island Nuclear Generating Plant 02-20-2018 1

Agenda

• Background & Schedule

• Discuss

- Variations from TSTF-425

- Site-specific TS SR 3.0.2

- Probabilistic Risk Assessment (PRA)

• Fire Model

• Questions and Feedback 2

Background & Schedule

• TSTF-425

- Risk-Informed Justification for the Relocation of Specific Surveillance Frequency Requirements to a Licensee Controlled Program (Initiative 5b)

- Licensee controlled program called the Surveillance Frequency Control Program (SFCP) and is in accordance with NEI 04-10

- Planned submittal first quarter 2018

- Requesting approval by April 2019

- Implement prior to Fall 2019 Refueling Outage (RFO) 3

Variations

• Variations for the application include:

- Revised (clean) TS pages not included

- TS Bases insert consistent with the April 14, 2010 NRC letter removing the frequency basis

- Cross-reference list for TSTF-425 (NUREG-1431) markups to PINGP site specific TS SRs provided

- Administrative changes

• An expired one-time frequency extension is deleted

• Two minor formatting changes 4

PINGPs TS SR 3.0.2

• PINGP SR 3.0.2 contains a restriction not in NUREG-1431:

- NUREG-1431 SR 3.0.2 permits a 25% extension of the interval specified in the Frequency

- PINGP SR 3.0.2 also permits a 25% extension of the specified interval, except for Frequencies specified as 24 months

• Not a variation to the TSTF

• Applies to 50 TS SR

• One exception - TS SR 3.8.1.8 amended in 2010 to allow the application of the 25% extension to its 24 month surveillance requirement 5

PINGPs TS SR 3.0.2

• PINGP TS SR 3.0.2 does not affect application of TSTF-425 nor does it affect implementation of the SFCP

- Site specific SR 3.0.2 is applied to the SFCP as described in TSTF-425

• SFCP Administrative Controls maintained (TS 5.5.17)

• Current Licensing Basis (CLB) maintained (TS SR 3.0.2)

- No affect on TSTF-425

• Model License Amendment Request (LAR) unchanged

• Model No Significant Hazards Consideration determination unchanged

• NRC Model Safety Evaluation (SE) unchanged

• Not considered a variation to the TSTF 6

PRA Technical Adequacy

• Internal Events including internal flooding

- RG 1.200 peer reviewed with Appendix X to NEI 05-04 finding closure review complete

• Seismic

- IPEEE Seismic Margins Analysis (SMA)

• Other External Hazards

- PINGP IPEEE concluded other external hazards to be negligible contributors to overall plant risk

• Shutdown Events

- Shutdown risk management program consistent with NUMARC 91-06 7

PRA Technical Adequacy

• Fire

- Fire PRA developed for NFPA-805

• NFPA-805 LAR approved August 8, 2017

• Fire PRA reflects future state of the as-built/as-operated plant following NFPA-805 modifications

- Unit 1 - Fall 2020 RFO, Unit 2 - Fall 2019 RFO

• Fire PRA is RG 1.200 peer reviewed with an Appendix X closure review

• Fire PRA Open F&Os provided in the Technical Adequacy Section of the SFCP LAR

- During transition, the SFCP evaluations use IPEEE FIVE results supplemented by sensitivities from Fire PRA in accordance with NEI 04-10

- Following implementation of NFPA-805, evaluations use the Fire PRA in accordance with NEI 04-10 8

PRA Technical Adequacy

• Conclusion

- PINGP PRA models sufficiently robust and suitable for SFCP 9

Questions and Feedback

?

10

Acronyms

• CLB - Current Licensing Basis

• F&O - Finding and Observations

• FIVE - Fire Induced Vulnerability Evaluation

• LAR - License Amendment Request

• IPEEE - Individual Plant Examination of External Events

• NEI - Nuclear Energy Institute

• NSHC - No Significant Hazards Determination

• NSPM - Northern States Power Minnesota

• PINGP - Prairie Island Nuclear Generating Plant

• PRA - Probabilistic Risk Assessment

• RFO - Refueling Outage

• SE - Safety Evaluation 11

Acronyms

• SFCP - Surveillance Frequency Control Program

• SMA - Seismic Margins Analysis

• TS - Technical Specification

• TS SR - Technical Specification Surveillance Requirement

• TSTF - Technical Specification Task Force

• XE - Xcel Energy 12