DETERMINING THE MINIMUM FIRE PROTECTION ... THE MINIMUM FIRE PROTECTION REQUIREMENTS FOR...
Transcript of DETERMINING THE MINIMUM FIRE PROTECTION ... THE MINIMUM FIRE PROTECTION REQUIREMENTS FOR...
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DETERMINING THE MINIMUM FIRE PROTECTION REQUIREMENTS FOR DECOMMISSIONING
Kory Krueger, PTech
PLC Fire Safety Solutions
18/06/2015
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OBJECTIVES
• Types of Facilities
• Regulatory Requirements
• Decommissioning Planning
• Assessment Methodology
• OPEX
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REGULATORY REQUIREMENTSNON-REACTOR FACILITIES
• NFPA 801
• CSA N393
• Fire Protection Program
• Fire Hazard Assessment (or Analysis)
• Means Of Egress
• Water Supply System
• Sprinklers Systems
• Standpipes
• Fire Detection, Alarm and Notification
• Fire Barriers
• Portable Fire Extinguishers
• Emergency Response
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REGULATORY REQUIREMENTSFACILITIES WITH REACTORS
• CSA N293
• CSA N393
• Mothballing; Encasement; and Dismantling and Removal
• Remove Unnecessary Combustibles
• Control Ignition Sources
• Accessible Areas
• Protection of Operating Units
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DECOMMISSIONING PLANNING
• Cease Commercial Operations
– no or limited revenue
• Required Structures Systems and Components
– storage of spent fuel (25 years)
• Reduction of Hazards
• Change of Use
– warehousing or office space
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ASSESSMENT OBJECTIVES
• Minimize the fire protection footprint while continuing to meet the fire protection goals.
• Determine the fire protection support resources required to maintain the facility.
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ASSESSMENT METHODOLOGY
DEFINE BLDGSAFE STORAGE STATE
IN-SERVICE PARTIALLY IN-SERVICE
OUT-OF-SERVICE
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ASSESSMENT METHODOLOGYIN-SERVICE BUILDINGS
IN-SERVICE
FHA
CHANGES?
NO
YES
FP SYSTEMS FOR SAFE
SHUTDOWN?
RAD MAT.CRITICAL SSC?
DET. NEWFP REQ.
FHA REQ. APPLY
NO
YES
NO
CODE REVIEW
YESCODE REVIEW
AND FHA
DEVIATIONS?YESCONFIRM DEV.
OR JUSTIFY ALT. SOLUTION
NO
STOP
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ASSESSMENT METHODOLOGYOUT-OF-SERVICE BUILDINGS
OUT-OF-SERVICE
VACANT BLDG REQ. NO INT.
REQUIREMENTS
TRANS. COMB.?RAD. MATERIALS?
IGN. SOURCES?SECURED ENTRY?
PRESENT
RE-DEF. SAFE STORAGE STATE
REMOVEDPOSSIBLE FIRE
IMPACT ON ADJ. BLDG/AREA
DET. NEWFP REQUIRMENTS
YES
NO
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ASSESSMENT METHODOLOGYPARTIALLY IN-SERVICE BUILDINGS
PARTIALLYIN-SERVICE
DEF. AREA STATES
EGRESS ROUTE?
NO
IN-SERVICE OUT-OF-SERVICEDET. EGRESS
FROM IN-SERVICE
YES
OUT-OF-SERVICE
IN-SERVICEIN-SERVICE
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ACME NUCLEAR POWER PLANT
Define building Safe Storage States
1) IN-SERVICE
2) OUT–OF–SERVICE
3) PARTIALLY IN-SERVICE
SB
TB
RB
AD
TRA
ILERW
AR
EHO
USE
SG FT
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ACME NUCLEAR POWER PLANT
1) IN-SERVICE
2) OUT–OF–SERVICE
3) PARTIALLY IN-SERVICE
AD
SB
TB
RB
TRA
ILERW
AR
EHO
USE
SG FT
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ACME NUCLEAR POWER PLANT
1) IN-SERVICE
2) OUT–OF–SERVICE
3) PARTIALLY IN-SERVICE
AD
SB
TB
RB
TRA
ILERW
AR
EHO
USE
SG FT
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ACME NUCLEAR POWER PLANT
1) IN-SERVICE
2) OUT–OF–SERVICE
3) PARTIALLY IN-SERVICE
AD
SB
TB
RB
TRA
ILERW
AR
EHO
USE
SG FT
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ACME NUCLEAR POWER PLANT
1) IN-SERVICE
2) OUT–OF–SERVICE
3) PARTIALLY IN-SERVICE
AD
SB
TB
RB
TRA
ILERW
AR
EHO
USE
SG FT
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ACME NUCLEAR POWER PLANT
3) PARTIALLY IN-SERVICE
SB
TB
RB
SB
TB
RB
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ACME NUCLEAR POWER PLANT
3) PARTIALLY IN-SERVICE
SB
TB
RB
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ACME NUCLEAR POWER PLANT
3) PARTIALLY IN-SERVICE
SB
TB
RB
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ACME NUCLEAR POWER PLANT
Define building Safe Storage States
3) PARTIALLY IN-SERVICE
SB
TB
RB
SB
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ACME NUCLEAR POWER PLANT
1) IN-SERVICE
2) OUT–OF–SERVICE
3) PARTIALLY IN-SERVICE
AD
TB
TRA
ILERW
AR
EHO
USE
SG FTSB
RB
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OPEX • Example Photos Here1. Reactor buildings have become
warehouses for highly contaminated materials and equipment.
2. Life safety systems within Reactor buildings have been overlooked.
3. Turbine Halls and other vacancies have become valuable real-estate.
4. Although areas are classified as Out-of-Service, inspection and maintenance work is required; introducing occupants.
5. The life expectancy of the FP systems, including the water supply loop, may not be as long as the safe storage phase before demolition.
6. Inclusion of Fire Protection Assessments in the planning stage.
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CONCLUSIONS
• There are many types of nuclear facilities that at some point need to be decommissioned.
• Regulatory Standards basically have the same requirements; keep the protection in place until the hazards are removed.
• Decommissioning Planning is a required step to determine area use and required critical structures, systems and components.
• Use the existing fire hazard assessments in conjunction with evaluations of the proposed area use.