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Category:Slides and Viewgraphs
MONTHYEARML24228A2102024-08-20020 August 2024 2024 NEI Early Warning System (EWS) Presentation - NEI Slides ML24229A0012024-08-19019 August 2024 NEI - Spent Fuel Management: Safety and Efficiency Improvements Through Technology and Performance Margins - NRC PIRTs Public Meeting Rev. 8.15.2024 Final ML24218A1832024-07-30030 July 2024 NEI 7-30-24 Trial Use RG 1.247 Path Forward Final ML24197A0652024-07-17017 July 2024 SDP Realism Public Meeting NEI Presentation ML24172A1952024-06-27027 June 2024 NEI Slides for 06-27-2024 Public Meeting Structures as IROFS at Fuel Cycle Facilities ML24178A0372024-06-26026 June 2024 NRC Power Uprate Review Preparation June 26, 2024 Public Meeting Slides ML24164A1972024-06-17017 June 2024 Public Meeting Slides - NRC Staff Comments and Observations on NEI 10-01, Rev 2 Industry Guideline for Developing a Plant Parameter Envelope in Support of an Early Site Permit ML24130A1972024-05-0909 May 2024 NEI Presentation Slides on Rapid and Large-Scale Nuclear Reactor Deployments for Remote Industrial Applications - May 14 2024 Public Meeting ML24129A1382024-05-0808 May 2024 NEI Slides on Centralized Inspections for May 9, 2024 Public Workshop ML24114A1142024-04-18018 April 2024 NEI Supplemental Information on NRC Comments on NEI 20-07, Draft Revision E - April 18 Meeting (Non-Proprietary) ML24103A1532024-04-12012 April 2024 NEI Supplemental Information on NRC Comments of NEI 20-07 Rev E (Non-Proprietary) - Slides ML24092A3132024-04-0303 April 2024 Public Mtg_2024-04-03 Pre-submittal Meeting with the Nuclear Energy Institute (NEI) to Discuss an Update to NEI 03-12, Security Plan Template (Revision 8)_NEI Slides ML24088A2252024-03-26026 March 2024 NEI Slides for Centralized Inspections March 2024 ROP Public Meeting ML24075A2092024-03-14014 March 2024 NEI Advanced Reactor Di&C Task Force Slides - Accident Monitoring Instrumentation ML24075A2102024-03-14014 March 2024 NEI Alan Campbell Slides - Non-Safety-Related with Special Treatment – Digital Considerations ML24082A1792024-03-14014 March 2024 RIC-2024 TH18 True Slides ML24086A5342024-03-14014 March 2024 RIC 2024 TH23 Slides - the Industry’S Innovation Imperative ML24067A2592024-03-13013 March 2024 RIC-2024 W14 Slides - NEI-BHoltzman an Industry Perspective on Advanced Reactor Construction Oversight ML24067A0062024-03-0808 March 2024 1 - NRC - Workshop3 - Non-LOCA Release Fractions Feedback - Final ML24067A0072024-03-0808 March 2024 2 - NRC - Workshop3 - Non-LOCA - FFRD - Final ML24067A0092024-03-0808 March 2024 3 - NRC - Worshop3 - CR Dose Presentation - Final ML24067A0102024-03-0808 March 2024 4 - NRC - Workshop3 - EQ Presentation - Final ML24067A0122024-03-0808 March 2024 6 - NRC - Workshop3 - Best Estimate Dose ML24067A0132024-03-0808 March 2024 7 - NRC - Workshop3 - Closing Remarks ML24067A2882024-03-0808 March 2024 1 (Revised)-NRC_Workshop3_Non-LOCA Release Fraction Feedback-Final ML24043A1162024-02-13013 February 2024 3- EQ Presentation Workshop 2 ML24043A1192024-02-13013 February 2024 1- Impacts on RG 1.183 for Workshop2 ML24043A1202024-02-13013 February 2024 2- CR Dose Presentation Workshop 2 ML24016A2372024-01-17017 January 2024 NEI Environmental Reviews Slides Public Meeting 1-17-24 ML24010A0202024-01-11011 January 2024 Public Meeting on SLR Efficiencies - NEI Presentation ML24008A0442024-01-0909 January 2024 NEI - Slides for NRC Workshop 1 on Revision to RG 1.183 R1 - Final - ML24008A044 ML23342A0262023-12-14014 December 2023 December 14, 2023, Presentation on NEI 23-01 Operator Cold Licensing Training Plan for Advanced Nuclear Reactors ML23347A1782023-12-13013 December 2023 12-14 NEI EPRI Presentation NRC Public Meeting 16-03 R1 ML23303A1922023-10-30030 October 2023 NEI Slides for SLR Public Meeting - Oct 31 2023 ML23324A2392023-10-24024 October 2023 S1P6 - Hilary Lane - NRC AMT Workshop - Oct. 2023 ML23261C3792023-09-27027 September 2023 NEI 22-04 Pre-Submittal Meeting with NRC - September 27, 2023 ML23258A1992023-09-20020 September 2023 NEI 99-02 Draft Rev. 8 Update for Sept 2023 ROP Public Meeting ML23242A0782023-08-30030 August 2023 Hbu Workshop IV Industry Presentation: Drive to Deploy ATF with Increased Enrichment and Higher Burnup ML23242A1662023-08-30030 August 2023 the Future of Nuclear Power: 2023 Baseline Survey (Slides) ML23230A0142023-08-22022 August 2023 Industry Slide Presentation for 8-22-23 Meeting on ARCAP-TICAP and DG-1404 Guidance Documents ML23228A0042023-08-18018 August 2023 NEI Slides for Public Meeting to Discuss Possible Efficiencies on the Subsequent License Renewal Review - August 18, 2023 ML23191A0162023-07-11011 July 2023 NEI Comments on Risk-Informed Process for Evaluation (RIPE) DORL TSG - 7/11/23 Public Meeting Slides from NEI ML23191A0632023-07-0707 July 2023 NEI Cybersecurity Presentation for July 2023 ROP Public Meeting ML23191A0662023-07-0707 July 2023 NEI 99-02 Draft Rev. 8 Update for July 2023 ROP Public Meeting ML23160A1512023-06-15015 June 2023 25 - Industry - Industry Perspectives on ASME III and XI Pre-Service Inspection ML23160A1422023-06-15015 June 2023 20 - Industry - Industry Perspective on Performance Monitoring ML23116A1892023-05-31031 May 2023 Industry Observations of NRC Licensing Program (NEI Slides May 2023) ML23136A5912023-05-18018 May 2023 NEI Safety Culture Presentation for May 2023 ROP Public Meeting ML23125A3192023-05-0909 May 2023 NEI Presentation for May 9, 2023, Public Meeting on NEI 22-05, Revision a ML23117A3712023-05-0202 May 2023 NEI Lessons Learned Meeting Slides, May 2, 2023 2024-08-20
[Table view] Category:Meeting Briefing Package/Handouts
MONTHYEARML24228A2102024-08-20020 August 2024 2024 NEI Early Warning System (EWS) Presentation - NEI Slides ML24229A0012024-08-19019 August 2024 NEI - Spent Fuel Management: Safety and Efficiency Improvements Through Technology and Performance Margins - NRC PIRTs Public Meeting Rev. 8.15.2024 Final ML24218A1832024-07-30030 July 2024 NEI 7-30-24 Trial Use RG 1.247 Path Forward Final ML24172A1952024-06-27027 June 2024 NEI Slides for 06-27-2024 Public Meeting Structures as IROFS at Fuel Cycle Facilities ML24178A0372024-06-26026 June 2024 NRC Power Uprate Review Preparation June 26, 2024 Public Meeting Slides ML24164A1972024-06-17017 June 2024 Public Meeting Slides - NRC Staff Comments and Observations on NEI 10-01, Rev 2 Industry Guideline for Developing a Plant Parameter Envelope in Support of an Early Site Permit ML24129A1382024-05-0808 May 2024 NEI Slides on Centralized Inspections for May 9, 2024 Public Workshop ML24103A1532024-04-12012 April 2024 NEI Supplemental Information on NRC Comments of NEI 20-07 Rev E (Non-Proprietary) - Slides ML24088A2252024-03-26026 March 2024 NEI Slides for Centralized Inspections March 2024 ROP Public Meeting ML24075A2092024-03-14014 March 2024 NEI Advanced Reactor Di&C Task Force Slides - Accident Monitoring Instrumentation ML24075A2102024-03-14014 March 2024 NEI Alan Campbell Slides - Non-Safety-Related with Special Treatment – Digital Considerations ML24086A5342024-03-14014 March 2024 RIC 2024 TH23 Slides - the Industry’S Innovation Imperative ML24067A0062024-03-0808 March 2024 1 - NRC - Workshop3 - Non-LOCA Release Fractions Feedback - Final ML24067A0072024-03-0808 March 2024 2 - NRC - Workshop3 - Non-LOCA - FFRD - Final ML24067A0092024-03-0808 March 2024 3 - NRC - Worshop3 - CR Dose Presentation - Final ML24067A0102024-03-0808 March 2024 4 - NRC - Workshop3 - EQ Presentation - Final ML24067A0122024-03-0808 March 2024 6 - NRC - Workshop3 - Best Estimate Dose ML24067A0132024-03-0808 March 2024 7 - NRC - Workshop3 - Closing Remarks ML24067A2882024-03-0808 March 2024 1 (Revised)-NRC_Workshop3_Non-LOCA Release Fraction Feedback-Final ML24043A1162024-02-13013 February 2024 3- EQ Presentation Workshop 2 ML24043A1192024-02-13013 February 2024 1- Impacts on RG 1.183 for Workshop2 ML24043A1202024-02-13013 February 2024 2- CR Dose Presentation Workshop 2 ML24016A2372024-01-17017 January 2024 NEI Environmental Reviews Slides Public Meeting 1-17-24 ML24008A0442024-01-0909 January 2024 NEI - Slides for NRC Workshop 1 on Revision to RG 1.183 R1 - Final - ML24008A044 ML23342A0262023-12-14014 December 2023 December 14, 2023, Presentation on NEI 23-01 Operator Cold Licensing Training Plan for Advanced Nuclear Reactors ML23347A1782023-12-13013 December 2023 12-14 NEI EPRI Presentation NRC Public Meeting 16-03 R1 ML23303A1922023-10-30030 October 2023 NEI Slides for SLR Public Meeting - Oct 31 2023 ML23324A2392023-10-24024 October 2023 S1P6 - Hilary Lane - NRC AMT Workshop - Oct. 2023 ML23258A1992023-09-20020 September 2023 NEI 99-02 Draft Rev. 8 Update for Sept 2023 ROP Public Meeting ML23242A0782023-08-30030 August 2023 Hbu Workshop IV Industry Presentation: Drive to Deploy ATF with Increased Enrichment and Higher Burnup ML23230A0142023-08-22022 August 2023 Industry Slide Presentation for 8-22-23 Meeting on ARCAP-TICAP and DG-1404 Guidance Documents ML23191A0632023-07-0707 July 2023 NEI Cybersecurity Presentation for July 2023 ROP Public Meeting ML23191A0662023-07-0707 July 2023 NEI 99-02 Draft Rev. 8 Update for July 2023 ROP Public Meeting ML23160A1422023-06-15015 June 2023 20 - Industry - Industry Perspective on Performance Monitoring ML23160A1512023-06-15015 June 2023 25 - Industry - Industry Perspectives on ASME III and XI Pre-Service Inspection ML23116A1892023-05-31031 May 2023 Industry Observations of NRC Licensing Program (NEI Slides May 2023) ML23136A5912023-05-18018 May 2023 NEI Safety Culture Presentation for May 2023 ROP Public Meeting ML23125A3192023-05-0909 May 2023 NEI Presentation for May 9, 2023, Public Meeting on NEI 22-05, Revision a ML23115A0302023-04-27027 April 2023 NEI Perspective on Performance Monitoring in Use of Probabilistic Fracture Mechanics for Optimizing Inspections of Non-RPV Pressure Vessels, April 27, 2023 ML23088A0822023-03-30030 March 2023 NEI Presentation - March 30, 2023 PRA Configuration Control Public Meeting ML23082A0572023-03-28028 March 2023 Proposal to Establish Alternate Requirements for Components Commensurate with Safety and Risk ML23079A2642023-03-23023 March 2023 General Visual Examination of Containment Surfaces Covered by Insulation - March 23, 2023 Public Meeting Slides from NEI ML23210A0042023-03-15015 March 2023 Destination: Termination, NRC Regulatory Information Conference ML23045A2892023-03-14014 March 2023 RIC 2023 - 03/14/2023 to 03/16/2023 Regulatory Information Conference (Ric).Operational and Safety Benefits of Risk Informed Applications ML23061A0292023-03-0202 March 2023 NEI Presentation - Advanced Reactor Digital I&C Licensing Workshop 1 ML23013A0782023-01-13013 January 2023 PI&R Inspection Discussion for January 2023 ROP Public Meeting ML23041A4342022-12-15015 December 2022 NEI Presentation for December 15, 2022 Industry Spent Fuel Activities Prioritization Meeting ML22291A4442022-10-11011 October 2022 NEI 22-01 License Termination Plan Process Presentation at October 11 2022 Meeting on NUREG-1757 Vol. 2 ML22266A2632022-09-28028 September 2022 Session 2 - Advanced Reactor Developers Perspectives on Codes and Standards ML22250A7122022-09-21021 September 2022 NEI 22-03 Presentation Slides for NRC Public Meeting (Sept. 21, 2022) 2024-08-20
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Moving Towards more Realistic Cabinet Damage Rob Cavedo
Potential Realism Improvement All trains and functions that can be affected by a fire are assumed to occur at the cabinet ignition frequency.
For most cabinets, this is a mildly conservative assumption (e.g. breaker goes open/breaker goes closed).
For cabinets that control multiple trains from different power supplies, this can be overly conservative.
Industry events of cabinets with multiple trains do not show the loss of all trains (e.g. single alarm card damaged others functional, single HS malfunction, etc.).
1 Moving towards more Realistic Cabinet Damage
Identification of Relevant Guidance NUREG/CR-6850 Section 8.5.1.2 (pg. 8-10) 2 Moving towards more Realistic Cabinet Damage
Proposed Approach to Enhance Realism Use a 25% chance all functions in a cabinet are lost and a 75% chance a single function is lost. This is based on a review of the sixteen control cabinet scenarios in the Fire Events Database (FEDB) only three are considered to represent broad damage to the cabinet.
A train is defined as any equipment in the cabinet powered from the same ultimate external power supply to the cabinet.
If all equipment in the cabinet is powered from the same external source, then this method cannot be applied.
This would only apply to scenarios with NO EXTERNAL damage. If the fire is large enough to damage external equipment, then larger internal losses are expected.
3 Moving towards more Realistic Cabinet Damage
Data for Proposed Approach to Enhance Realism Data (3-of-16 is wide spread damage):
Specific Challenging FireID Component Determination Event Date Fire Characterization Fire Characterization Type Extent Source Damage Power Effect 69 Control Cabinet 4 U(NC-PC) 8/29/1994 Fire damaged cables in control cabinet (located in the Switchyard). Other (specify) Unknown Scram Fire caused by breakdown of insulation in a control cable. The insulation breakdown was located where the insulation came in contact with a protruding tap of a wire wound power resistor.
Insulation breakdown due to aging (25 years) and water intrusion.
98 Control Cabinet 2-PC 10/8/1998 During a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> post maintenance run of the EDG Smoldering combustion - internal Confined to the object of origin Entered an LCO to component 187 Control Cabinet 2-PC 8/16/1999 thick grey smoke observed Flaming combustion - internal to Confined to the object of origin None component (broad/extensive damage) 303 Control Cabinet 2-PC 3/1/2000 Electrical short resulting in burning insulation and paint in Plant Flaming combustion - external to Confined to the object of origin None Heating Boiler Control Cabinet. component (broad/extensive damage) 20272 Relay Rack 4 U(NC-PC) 9/10/1990 Unknown Other (specify) Confined to the object of origin Unknown 30276 Other 2-PC 7/24/2006 Lighting battery box smoking, flames observed coming out near Flaming combustion - internal to Confined to the object of origin None transformer component 30281 Relay Rack 1-CH 6/5/2008 Failed relay in controm room cabinet due to overheating. Smoldering combustion - external Confined to the object of origin None Evidence of smoke, opened panel and saw relay with failed to component (localized/single subcomponent) insulation. No flaming observed.
30338 Control Cabinet 2-PC 3/30/2006 Discovered fire in blower. Extinguished using CO2. Contacted Flaming combustion - internal to Confined to the object of origin None electricians to investigate problem. Electricians disconnected the component (localized/single subcomponent) blower from its power source and removed the blower from the cabinet. Blower found to be full of dust and dirt. Smoke detecter in cabinet did not alarm while the area inside the panel was hazy with smoke.
30478 Control Cabinet 2-PC 9/9/2005 Source of fire a bunch of relays, wiring sustained significant Flaming combustion - internal to Confined to the object of origin None damage to insulation component (broad/extensive damage) 30513 Control Cabinet 2-PC 5/27/2008 Voltage transformer overheated and ignited combustible material Flaming combustion - internal to Confined to the object of origin None located inside transformer housing component 30522 Control Cabinet 2-PC 9/12/2000 fire kept to electrical cabinet. Damage to internals with noticable Flaming combustion - internal to Confined to the object of origin None charring and smoke damage, external box had some heat and component smoke damage.
50473 Wall Mounted 2-PC 6/26/2000 small flames from relay with smoke, water intrusion, sparking and Flaming combustion - internal to Confined to the object of origin None smoke before power removed component 50784 Relay Rack 2-PC 11/20/2005 Testing relay, started to smoke - fuses pulled and shot with Flaming combustion - external to Confined to the object of origin None extinguisher component (localized/single subcomponent) 50811 Control Cabinet 2-PC 1/9/2001 relay burning, found extinguisher and put out Flaming combustion - internal to Confined to the object of origin None component (localized/single subcomponent) 83-1 Wall Mounted 2-PC 4/4/1996 Smoke was discovered in the back boards area of the control room Flaming combustion - internal to Confined to the object of origin None by a security offer who was performing an hourly fire watch. component (localized/single subcomponent)
Smoke was emitting from the emergency lightning UPS. Damage limited to cabinet involved and adjoining cables 83-2 Wall Mounted 2-PC 4/4/1996 DC EQUP room fire - fire limited to transformer enclosure and Flaming combustion - internal to Confined to the object of origin None involved only internals. component (localized/single subcomponent) 4 Moving towards more Realistic Cabinet Damage
Example Flow controllers for Pump A and B are in Cabinet X.
Given a per panel ignition frequency of 1E-4, the conservative and more realistic results are:
Conservative full Cabinet Improved Cabinet Only Loss Modeling benefit is in Case Description Impact Frequency Frequency the Fire X1 Fire within Cabinet Both FC A and B Lost 7.00E-05 1.75E-05 within a X2 Fire within Cabinet FC A lost; FC B functional N/A 2.63E-05 cabinet X3 Fire within Cabinet FC B lost; FC A functional N/A 2.63E-05 region X4 Fire Damages cabinet and Target FCs A and B Lost and 1st Target 2.80E-05 2.80E-05 X5 Fire Damages whole room Whole Room Lost 2.00E-06 2.00E-06 Sum Check 1.00E-04 1.00E-04 5 Moving towards more Realistic Cabinet Damage
Industry Benefit Maximum site benefit is 20% CDF reduction. The average industry benefit is 2%.
6 Moving towards more Realistic Cabinet Damage
Questions 7 Moving towards more Realistic Cabinet Damage