ML18051A175
| 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
1 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
2 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
3 Background & Schedule
- 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
4 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
- 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
- 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
- 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
7 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
8 PRA Technical Adequacy
- Fire
- Fire PRA developed for NFPA-805
- Unit 1 - Fall 2020 RFO, Unit 2 - Fall 2019 RFO
- 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
9 PRA Technical Adequacy
- Conclusion
- PINGP PRA models sufficiently robust and suitable for SFCP 9
10 Questions and Feedback 10
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11 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
- PINGP - Prairie Island Nuclear Generating Plant
- RFO - Refueling Outage
- SE - Safety Evaluation 11
12 Acronyms
- SMA - Seismic Margins Analysis
- TS - Technical Specification
- TS SR - Technical Specification Surveillance Requirement
- TSTF - Technical Specification Task Force
- XE - Xcel Energy 12