Donald C. Cook Nuclear Plant NFPA 805 Pre

Donald C. Cook Nuclear
Plant
NFPA 805
Pre--LAR Submittal Meeting
Pre
Presented by: Richard Gray – NFPA 805 Project Manager
Dan MacDougall – SSD Engineer
Jim Hawley – Supervisor, Risk Management
Michael Scarpello - Manager, Regulatory Affairs
1
Meeting Purpose
Project Status
¾ Nuclear Safety Capability Assessment (NSCA)
¾ Fire Modeling
¾ Fire PRA
¾ Fire Risk Evaluation (FRE)
¾ Fire Safety Analysis (FSA)
¾ Recovery Actions (RAs)
¾ Monitoring Program
¾ NPO Analysis
LAR Submittal and Implementation
2
Nuclear Safety Capability
Assessment (NSCA)
z
Documents Chapter 4 Compliance
z
NFPA 805 Analysis Model (SAFE)
z
Fire Area Analysis
y Strategies
g
z
Identification of VFDRs
z
Status - Analysis Complete
3
Fire Modeling
¾Used Verified & Validated (V&V’d) Fire Models
¾57 Fire Areas
¾18 Deterministic,
¾39 Performance Based
¾Process followed NUREG/CR-6850 and the Fire
PRA Standard
¾Performed over 900 scenarios supporting the Fire
PRA
¾Status - Complete
4
Fire PRA
¾
Fire PRA Peer Review - October, 2009 by
WOG
¾ Fire PRA Integrated with Internal Events PRA
¾ No Significant
g
Finding
g
¾ 61 F&Os - 36 Suggestions, 25 Findings – All
Impacts Resolved
¾ PWROG Indicated That Overall, the Fire PRA
Quality was Found to be Very Good with Many
Elements Being Performed at the State-of-the-Art
Level
¾
Status – Analysis Complete
5
Fire Risk Evaluation
¾ Determined Delta Risk between Compliant
Plant and NFPA 805 Plant
¾ Over 900 Scenarios Evaluated
¾ Over 260 VFDR Risk Evaluations
¾ Based on NUREG-6850 Guidance
¾ Status – Analyses Complete
6
Fire Safety Analysis
¾ 57 FSAs Document Each Fire Area
¾ Fire Protection Systems and Features
¾ NSCA Compliance Strategy
¾ VFDRs
VFDR and
d Recovery
R
Actions
A ti
¾ Fire PRA Risk Evaluation Results
¾ Radioactive Release Review
¾ NPO Compliance Review
¾ Monitoring Program Input
¾ Defense-In-Depth and Safety Margin Review
¾ Status - Complete
7
Recovery Actions
Appendix R
¾Cold Shutdown – 1221 OMAs
¾Hot Standby – 598 OMAs
NFPA 805
¾VFDRs - 260
¾Recovery Actions – 140
¾Status – Evaluations Complete
8
Monitoring Program
z Scoping of Fire SSCs based on Key
Programmatic Elements and Engineering
Assumptions
z Screening Using Risk Criteria – CDF and
LERF
z Risk Target Value Determination based on
Risk Assessment
z Monitoring Implementation To Be Consistent
with FAQ-0059
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Non--Power Operations
Non
¾ Higher Risk Evolution (HRE) Key Safety
Functions (KSF) Contingency Plans/Protective
Measures Identified
¾ Reviewed Existing Plant Outage Processes to
Determine Equipment Required for KSF,
Including Support Functions
¾ Established Defense-In-Depth Features
¾ Update Procedures Before “Going Live”
10
LAR Status
z Using NEI Template
z Nine Packages + Assembly
– 3rd Party Review
z Eight Packages Complete
z No Significant Gaps or Alternate Methods
z Completion Target for Final Review –
5/31/2011
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Project Implementation
z Modifications and Implementation Items to be
Completed Prior to Issuance of NRC SE
– MOV IN 92-18 Mods
– Conversion of CO2 Systems from Manual to
Automatic
– Transient Combustibles Control with Combustible
Free Zones (CFZ)
– Develop Monitoring and NPO Programs
– Update Procedures and Other Documentation
z Training After Receipt of NRC SE
z “Go Live” 90 Days after Receipt of NRC SE
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Summary
z
z
z
z
z
Complete LAR to be Forwarded On or Before
6/29/2011
Nothing Unique or Challenging
No Issues Requiring Enforcement Discretion
Modifications to be Completed Prior to
Issuance of NRC SE
“Go Live” 90 Days after Receipt of SE (To
Allow for Training)
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