ML043640269
| ML043640269 | |
| Person / Time | |
|---|---|
| Site: | Harris, Brunswick, Crystal River, Robinson  |
| Issue date: | 12/09/2004 |
| From: | Progress Energy Co |
| To: | Office of Nuclear Reactor Regulation |
| Patel C P, NRR/DLPM, 415-3025 | |
| References | |
| Download: ML043640269 (18) | |
Text
Fire Protection Initiatives NRC Meeting December 9, 2004 Brunswick (BNP)
Crystal River 3 (CR3)
Harris (HNP)
Robinson (RNP)
Nuclear Generation Group a3 Progress Energy No commitments are made or implied by this presentation.
Information is presented to stimulate dialogue.
'Fire Protection Initiatives Progress Energy Participants P Paul Gaffney, Corporate - Chief Elect/l&C Engineer P Jeff Ertman, Corporate - Fire Protection Engineer o Frank Dola, CR3 - Operations o Steve Hardy, BNP - SSA Project Manager o John Kunzmann, HNP - SSA Engineer
- Frank Modlin, RNP - Appendix R Engineer o Chuck Baucom, RNP - Licensing Supervisor o Ken Heffner, Corporate - Licensing P Additional personnel by phone
lNuclear Group Page 2 0
Progress Energl
Fire Protection Initiatives Outline
- Background
- Status
- Results
- Areas of Continuing or Future Interest
- Provide additional results and insights using examples
- Closing Summary NeaG~
eneraton Page 3 r
Progress Energj
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Background===
- What Progress Energy is doing:
o Safe Shutdown Analysis (SSA) Validation o Revised Manual Action Feasibility Evaluations
- Why:
o Address specific site issues o Incorporate latest industry information into the SSA NcGeneration Pager4 u
Progress Energy Gru
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Background===
Fire Protection SSA Goals
- Safety P Compliance - Current Design Methodology (CDM)
- Existing Design Criteria
- Appendix R/NUREG 800 (HNP) o Add New Criteria - Revised Methodology (RDM) based Design on new data
- Consistent Approach at all PE Sites
- Forward Looking Tools P Use Computer Aided Fault Tree Analysis (CAFTA) tool for logic development Nucear
( U Generation d
w Group Page 5 Progress Energj
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Background===
PE SSA Methiodology Overview Nuclear Generation d bGroup Page 6 Progress Energl
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Background===
SSA Revised Design Methodology
- Examples - RDM Criteria added SSA:
o Multiple circuit failures per circuit - for
'enhanced' cable selection
- Multiple components with in a single cable o Up to two concurrent spurious actuations
- Examples - Enhanced Manual Actions Criteria:
- Define higher complexity areas P Add timeline definition GuceaGeneration Pageruc p
Progress Energl
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Background===
SSA Methodology Development Some of the
References:
P EPRI cable test data P February 2003 NRC Fire Induced Cable Failure workshop results P Revised IP71111.05 P RIS 2004-03 P NRC Federal Register Notice on Manual actions late 2003 P NEI 00-01, NEI 04-06 Nudear Generaton Group Page 8 W Progress Energj
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Background===
PE FPSSA Project Problem Resolution
, ib Nudear Generabon
,Group Page 9 Progress EnergI
Status SSA Validation Project
- Established design guidelines from available published information - some details previously provided
- Various stages of Project implementation at each site
- HNP current target complete in 2005
- BNP, RNP, CR3 current target complete analysis by end of 2006
- Recognize PE will need to address final NRC criteria in the future
- Problem resolution and modifications not included in this project schedule E
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Nudear if Generation Page 10fi rgesE rg
Status SSA Validation Project The PE SSA Validation Project meets the intent of NEI 04-06 Self Assessment guidance PE views our Validation Project as meeting the self assessment requirement for applicability of NRC proposed enforcement discretion for circuit failure findings
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~Generation Page IIU PoresEeg
Status Revised Manual Action Feasibility
- Used NRC Criteria from the late 2003 Federal Register notice - not a major change from previous PE criteria
- Demonstrate that the time to complete manual operator actions is bounded by the time to reach an unrecoverable condition
- CR3 and RNP completed in 2004; BNP scheduled in early 2005; HNP in mid 2005 1 Recognize PE will need to address final NRC criteria in the future l
Nuclear
(
Gue arGeneration Page 12 Group 0
Progress EnergI
Results to Date SSA Current Design Methodology
- Majority of the existing analysis has been demonstrated effective
- Have identified some cables that are not protected
- Improved Fire
- Added system' SSD Procedures s for increased flexibility such as off site power Nuclear Generation d
Group Page 13 Progress Energl
Results to Date SSA Revised Design Methodology
- Equipment added to Safe Shutdown Equipment List (SSEL)
P Boundary Valves in series
- Scope of Cables Selected o For SSEL components, typically did not result in more cables pulled into the analysis o More cables were evaluated as spurious
- Multiple spurious actuations being systematically addressed l
Nuclear Po d
Generation Page 14 PrgesE rg Gru rgesEeg
Areas of Continuing or Future Interest
- Progress Energy Internal Initiatives o Addition of RDM criteria into SSA P Use of PB/RI tools to address multiple cable failures and resulting spurious actuations
- Credit offsite power for non-lIl.G.3 Fire Areas P Change Fire Area resolution strategy from llI.G.3 to shutdown from the control room P Use of available off site power in addition to on site emergency power supplies for selected Il.G.3 Fire Areas (Nudear Group Page 15 3 Progress Energy
Areas of Continuing or Future Interest F* ire Rated Cable to Meet Il.G.2 (or NUREG-0800 Equivalent)
Requirements
- Resolution of Manual Actions P Manual actions not previously approved in accordance with Il.G.2 o Suppression in Fire Areas with manual actions P Alternative means of establishing manual action time line
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Nuclear Group Page 16 0
Progress Ei rerg
Additional Discussion of Results and Insights Discuss Answer
, [
Nuclear Generation d
Group Examples Questions Page 17 Progress Energy
Summary
. All sites current engaged in SSA Validation
. Waiting for completion of staff guidance on some aspects of the initiatives Nuclear
/ b Generation I
Group Page 18 Progress Energj