ML19291D553
| ML19291D553 | |
| Person / Time | |
|---|---|
| Site: | 99902028 |
| Issue date: | 10/17/2019 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Rowley J | |
| References | |
| Download: ML19291D553 (14) | |
Text
Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md. October 17, 2019 PRE GI-018 Aluminum HEAF Current Status Public Communications
- March 4, 2016, Start Generic Safety Issue Process (ML16064A250)
- The generic issue review panel (GIRP) determined that the seven screening criteria were met in accordance with management directive 6.4 (ML14245A048)
- July 10, 2019, Most Current Status of Pre GI-018 Available (ML19127A202)
- However, this is currently being updated based on recent events
Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md. October 17, 2019 PRE GI-018 Aluminum HEAF Industry Concerns
- Identified two primary areas of industry concern:
- Questions remain on what and how the testing is being performed
- Lesson Learned from one series before moving to the next
- There is a lack of understanding how the whole program fits together
- Need for a Roadmap/Project plan so stakeholders can follow/understand the project
- NRC agreed to delay the testing until these issues can be addressed
NEI Risk-Informed Regulation and Fire Protection Forum September 17-19 2019, Bonita Springs, FL NRC/EPRI Establish Working Group
- Mission Statement
- To improve understanding of risk from electrical arcing fault hazards in nuclear power plants (NPPs).
- Goals
- Better understand key factors contributing to:
- Occurrence
- Severity
- Based on experimental data, operating experience, and engineering judgement
- Ignition frequency
- Zone of influence (ZOI)
- Analyze plant impact and risk implications
- What can go wrong?
- How likely is it?
- What are the consequences?
NEI Risk-Informed Regulation and Fire Protection Forum September 17-19 2019, Bonita Springs, FL Current Major Working Group Actions
- Weekly Working Group Webinar
- EPRI Survey Plant Equipment
- Development of Project Plan
- Sandia Model Development
- Target Fragility Development
- November 2019 Face to Face Meeting
- Operational Experience Review
Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md. October 17, 2019 Bus Duct Medium Voltage Testing Status - On Hold
- Planned 5 tests currently on hold
- Current Bus duct guidance for high energy arcing faults (FAQ 07-0035)
Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md. October 17, 2019 Summary
- Full Scale Testing is currently on hold
- Working Group is continuing to make solid progress
- Expect additional public interaction
- Public Meeting/Workshops
- Expect improved public communications
BACK UP SLIDES Current Status NRC Pre Generic Issue - 018 High Energy Arching Faults (HEAF) involving Aluminum Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md.
October 17, 2019
NEI Risk-Informed Regulation and Fire Protection Forum September 17-19 2019, Bonita Springs, FL HEAF Working Group Members Ken Fleischer (Fleischer Consultants) JS Hyslop (NRC)
Dane Lovelace (Jensen Hughes) Nicholas Melly (NRC)
Shannon Lovvern (TVA) Kenn Miller (NRC)
Tom Short (EPRI) Gabriel Taylor (NRC)
Marko Randelovic/ Chris LaFleur (SNL)
Ashley Lindeman(EPRI) Kenny Hamburger (NRC)
Jason Floyd (Jensen Hughes)
Project Managers Project Sponsors Kelli Voelsing (EPRI) Tina Taylor (EPRI)
Mark Henry Salley (NRC) Michael Cheok (NRC)
Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md. October 17, 2019 PRE GI-018 Aluminum HEAF Public Involvement - Transparency
- Examples of Public Involvement:
- April 19-20, 2018 2 day public HEAF workshop
- August 24, 2018 Public ACRS Subcommittee Meeting
- September 13, 2018 RISC Public Meeting
- October 31, 2018 Public NEI Regulatory Issue Task Force
- January 23, 2019 Generic Issue Public Meeting
- March 20, 2019 HEAF Public Meeting
- July 24, 2019 Two HEAF Public Meetings
- Sessions at 2016, 2017, 2018 Regulatory Information Conference
- Presentations at multiple NEI Fire Forums
Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md. October 17, 2019 Electrical Enclosure Low Voltage HEAF Testing Status - On Hold
- Planned 4 Test Enclosure
- 9 separate tests run on 2 Enclosure
- August 2019
- Testing Voluntarily Suspended
- Difficulty maintaining the arc
- Questions on enclosure configuration/manufacturer
Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md. October 17, 2019 Industry Requested HEAF Testing Status - Under Development
- Decrement Curve
- Simulate spin down of the main generator
- Working with KEMA to determine if testing is possible
- Supply Side Configuration
- Direct Link to Operating Experience
- Investigating Initiating Compartment volume effects
- Relocating shorting wire supply side to simulate supply side initiating event
- Currently in Planning Stage
Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md. October 17, 2019 Improved HEAF Research Public Communication
- Accessible from the NRC Public Website (https://www.nrc.gov)
About NRC >> Research Activities >> Fire Research Program >> HEAF Research
Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md. October 17, 2019 HEAF Research Web Page
- Or navigate directly to:
https://www.nrc.gov/about-nrc/regulatory/research/fire-research/heaf-research.html
Public Risk Informed Task Force Meeting NRC Headquarters Rockville Md. October 17, 2019 HEAF Research Project Plan
- Detailed project plan under development. It will include:
- Experimental tasks
- Analytical tasks
- Public interaction
- Task input/output and data flow
- Gantt chart to track milestones/timeline
- Increase project transparency and communication
- The project plan will remain in draft format and be subject to revisions as research progresses