ML17340B102
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| ML17340B102 | |
| Person / Time | |
|---|---|
| Site: | Nuclear Energy Institute |
| Issue date: | 12/13/2017 |
| From: | Nuclear Energy Institute |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17340B096 | List: |
| References | |
| Download: ML17340B102 (7) | |
Text
Proposed Prioritization of Fire PRA FAQ Efforts December 13, 2017
=
Background===
- Several FPRA realism improvement opportunities identified during October 2017 workshop deemed potentially suitable for FAQ process.
- Industry reviewed input from workshop and prioritized FAQ work to be completed in the next 6-9 months
- Did not attempt to prioritize against more in-depth research work
- Will discuss new proposed FAQs in detail today
Immediate Priority - Completion of Ongoing Work
- Transient controls PAU (14-007)
- Cable tray ignition at 500 C (16-011)
Highest Priority
- HEAF event frequency divided into 1E and non-1E groups
- Updated EC NSP curve
- Time to detection is zero for manual NSP calculations
High Priority
- Plant trip probability
- Reduce NSP floor
Moderate Priority
- Fire damages part of equipment in cabinet
Proposed Schedule Delivery of FAQs to NRC Target Closure Date Immediate Priority N/A January 2018 Highest Priority January 2018 April 2018 High Priority April 2018 July 2018 Moderate Priority July 2018 September 2018