IMC 0609, App A - NRC

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Table 2 - Generic BWR Example - Initiators and System Dependency Affected System Major Components Support Systems Initiating Event Scenarios Code Name ADS Reactor Vessel Pressure Control and Automatic Depressurization System PCS Power Conversion System RHR Residual Heat Removal 5 relief Valves (ADS) & 8 safety valves 3 reactor feed pumps, 4 condensate pumps,4 condensate booster pumps 2 Loops, each with 2 RHR pumps & 1 RHR HX, MOVs IA/nitrogen, 125 V-DC All except LLOCA 4160 V-AC, 125 V-DC, TBCCW, IA TRAN, IORV, SLOCA, ATWS 4160 V-AC, 125 V-DC, 480V AC, RHRSW, Pump Room HVAC AC AC Power (non-EDG) 4160V AC, 480V AC 125V DC All DC DC Power 125V DC (2 batteries & 4 battery charger), 250V DC (2 batteries & 3 battery charger) (shared between two units) EDG Emergency Diesel Generators 1 dedicated EDG, 1 shared EDG, & 1 SBO DG RHRSW RHR Service Water 2 Loops, 2 pumpmotor set per loop 0609, App A, Att 1 A1-12 Issue Date: 12/01/04 All 480V AC All 125 V-DC, DGCW, EDG HVAC LOOP HVAC, 4160 V-AC, 480 V-AC, 125 V-DC All
Affected System Major Components Support Systems Initiating Event Scenarios SW Service water 5 pumps in Unit 1/ 2 Crib house; shared system supplying a common header TBCCW Turbine Building Closed Cooling Water System HPCI High Pressure Coolant Injection LPCS Low Pressure Core Spray RCIC Reactor Core Isolation Cooling FPS Fire Protection System CRD Control Rod Drive Hydraulic System 2 pumps, 2 HXs, an expansion tank 4160 V-AC, 125 V-DC, IA LOSW SW, IA, 4160 V-AC TRAN, TPCS, SLOCA, IORV, LOOP, ATWS 1 TDP, MOV 125 V-DC, 250 V-DC, Room HVAC All except LLOCA, LOSW 2 Trains or Loops; 1 LPCS pump per train 4160 V-AC, 480 V-AC, 125 V-DC, SW, Pump Room HVAC All except LOSW 1 TDP, MOV 125 V-DC, Room HVAC All except LLOCA, MLOCA 2 diesel fire pumps, MOV IA Instrument Air 2 compressors for each unit plus a shared compressor supplying both units SLC Standby Liquid Control APCV Augmented Primary Containment Vent 120V AC, SW, 24V Nickelcadmium batteries 2 MDP, MOV Non-emergency ESF AC Buses, TBCCW 2 MDP, 2 explosive valves SW, 480V AC LOIA LOSW, LOIA 480 V-AC, 125 V-DC ATWS Valves, Dampers Essential Service Bus, IA backed up by accumulators for each valve operator TRAN, TPCS, SLOCA, IORV, LOOP, ATWS Issue Date: 12/01/04 A1-13 0609, App A, Att 1 All
Page 1 and 2: I APPLICABILITY APPENDIX A Determin
Page 3 and 4: Phase 3 is intended to be performed
Page 5 and 6: APPENDIX A ATTACHMENT 1 User Guidan
Page 7 and 8: (1) For each of the inspection scen
Page 9 and 10: Human Reliability Analysis (HRA) Mo
Page 11 and 12: CORNERSTONES AND FUNCTIONS DEGRADED
Page 13 and 14: Initiating Events Cornerstone LOCA
Page 15: Row Initiating Event (IE) Frequency
Page 19 and 20: Recovery of Failed Train Table 4 -
Page 21 and 22: Table of Contents APPENDIX A ATTACH
Page 23 and 24: 1.3 Inspection Finding (Normally Cr
Page 25 and 26: first revision of the site specific
Page 27 and 28: Basis: Evaluation of this type of i
Page 29: these three accident sequences woul

IMC 0609, App A - NRC

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