ML17340B102: Difference between revisions

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{{#Wiki_filter:Proposed Prioritization of Fire PRA FAQ Efforts December 13, 2017
{{#Wiki_filter: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.
===Background===
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
* Several FPRA realism improvement opportunities identified during October 2017 workshop deemed potentially suitable for FAQ process.
-depth research work Will discuss new proposed FAQs in detail today
* 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  
Immediate Priority - Completion of Ongoing Work
- Completion of Ongoing Work Transient controls PAU (14
* Transient controls PAU (14-007)
-007) Cable tray ignition at 500 C (16
* Cable tray ignition at 500 C (16-011)
-011) Improved HEA F NSP (17-013)
* Improved HEAF NSP (17-013)
Highest Priority HEAF event frequency divided into 1E and non-1E groups Updated EC NSP curve T ime to detection is zero for manual NSP ca lculations High Priority Plant trip probability Reduce NSP f l oor Moderate Priority Fire damages part of equipment in cabine t 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}}
 
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 Target Closure Date NRC Immediate Priority         N/A           January 2018 Highest Priority     January 2018         April 2018 High Priority         April 2018         July 2018 Moderate Priority       July 2018       September 2018}}

Revision as of 10:53, 22 October 2019

12/13/2017 Meeting Presentation, Proposed Prioritization of Fire PRA FAQ Efforts
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)
v • d • e


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

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 Target Closure Date NRC Immediate Priority N/A January 2018 Highest Priority January 2018 April 2018 High Priority April 2018 July 2018 Moderate Priority July 2018 September 2018

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