ML19162A417
| ML19162A417 | |
| Person / Time | |
|---|---|
| Issue date: | 06/13/2019 |
| From: | Nick Melly NRC/RES/DRA |
| To: | |
| T. Rivera | |
| Shared Package | |
| ML19162A411 | List: |
| References | |
| Download: ML19162A417 (16) | |
Text
NUREG/CR-6850 FIRE PRA METHODOLOGYModule 1Internal Event, At
-Power ProbabilisticRisk Assessment Model for SNPPSample Plant DescriptionNicholas Melly
-Nuclear Regulatory CommissionFire PRA WorkshopJune 24, 2019
-June 28, 2019Rockville, MD U.S. NRC HQ Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 2Sample Problems / Sample PlantFire PRA module will involve hands
-on exercisesIntent: To illustrate key aspectsof the methodology through a cohesive set of sample problemsAll exercises are built around a common sample plant
-the Simple Nuclear Power Plant (SNPP)The exercises are designed such that taking all modules together presents a fairly complete picture of the FPRA methodologyNot every task is covered by the SNPP sample problemsNot every aspect of covered tasks are illustrated Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 3The SNPP: Intent and ApproachThe SNPP is not intended to reflect either regulatory compliance or good engineering practiceIt is purely an imaginary construct intended to highlight key aspects of the methodology
-Nothing more!The SNPP has been kept as simple as possible while still serving the needs of the training modulesAspects of the plant are assumed for purposes of the training exercises, e.g.,:BOP equipment not covered in detailSome systems are assumed to remain available Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 4The SNPP: Plant CharacteristicsPWR with one primary coolant loopOne steam generator, one RCP, one pressurizerChemical volume control/high
-pressure injection systemResidual heat removal systemSecondary side includes:Main steam and feedwater loop for the single steam generator (not modeled)Multiple train auxiliary feedwater system to provide decay heat removalSupport systems includes:CCW (not modeled)Instrument airAC and DC powerInstrumentationSee Chapter 2 for complete plant description Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 5The SNPP: Primary Systems P&ID HPI-A HPI-B MOV-1 MOV-9 RHR HEAT EXCHANGER CV-3 CV-4 LETDOWN HEAT EXCHANGER FO MOV-5 MOV-6 CV-2 MOV-2 OPERATED VIA SOV-2 (AIR)TI-1 FC CCW CCW LI-2 LI-1 SKID MOUNTED AIR COMPRESSOR AIR SUPPLY VCT PZR MOV-13 FC OPERATED VIA SOV-1 WITH N 2 BACKED BY AIR AOV-1 (PORV)PT-1 SG RV MOV-7 MOV-3 MOV-4 MOV-20 LI-3 LI-4 AOV-3 OPERATED VIA SOV (AIR)RHR PUMP MOV-8 RWST 3 5/23/12 A-10 Revision No
.: Date: Drawing No
.: PRIMARY SYSTEM P & I D SNPP RCP-1 Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 6 SG MOV-14 MOV-15 MOV-11 MOV-10 MOV-18 MOV-19 MOV-16 MOV-17 MSIV CST AFW-B (STEAM)AFW-A AFW-C (DIESEL DRIVEN
)V-11 L.O.GOVERNOR FROM FEEDWATER TO TURBINE CONDENSER ATOMOSPHERE RELIEF VALVE AOV-4 A-1 STEAM TURBINE 2 5/23/12 A-11 Revision No
.: Date: Drawing No
.: SECONDARY SYSTEM P & I D SNPP LI-6 LI-5 FCThe SNPP: Secondary Systems P&ID Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 7 SWGR-1 RCP-1 UAT-1 SWGR-2 Spare COMP-1 SST-1 LC-1 MCC-1 SST-2 LC-2 MCC-2 BC-1 SWGR-A AFW-A HPI-A SUT-1 SST-A LC-A SWGR-B RHR-B HPI-B SST-B LC-B ATS-1 EDG-A EDG-B G MCC-A 1 BC-A MOV-1 MOV-3 MOV-5 MOV-7 MOV-10 MOV-13 MOV-16 (Racked Out
)BC-B MCC-B 1 MOV-2 MOV-4 MOV-6 MOV-8 MOV-9 MOV-17 MOV-20 MOV-19 MOV-18 DC BUS-A VITAL-A TI-1 SOV-1 LI-5 LI-3 ANN-1 INV-A BAT-A DC BUS-B VITAL-B LI-2 LI-4 PT-1 INV-B BAT-B SOV-3 SOV-2 SWGR-B SWGR-A EDG-A PNL-A PNL-B MOV-14 MOV-11 MOV-15 Vol Reg DC BUS-1 BAT-1 RCP-1 NON-VITAL DC LOADS SWYD OFF-SITE POWER 4 5/23/12 A-12 Revision No
.: Date: Drawing No
.: ELECTRICAL ONE-LINE DIAGRAM SNPP LI-1 LI-6 EDG-B HPI-A AFW-A RHR-B HPI-B AOV-4The SNPP: Electrical One
-Line Diagram Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 8The SNPP: General Plant Layout
-Plan SECURITY BLDG.AUX BLDG.DG BLDG.SWITCH YARD INTAKE STRUCTURE TURBINE BLDG
.CONTAINMENT RWST AA AA CST DG-B DG-A MAIN TRANSFORMER UAT SUT YARD 14 7 12 8 B 8 A 15 13 BATTERY ROOM 1 1 6/22/09 A-01 Revision No
.: Date: Drawing No
.: PLANT LAYOUT GENERAL SNPP Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 9The SNPP: Plant Layout
-Elevation Containment and Auxiliary Building MAIN CONTROL ROOM CABLE SPREADING ROOM SWITCHGEAR ROOMS RHR PUMP ROOM CHARGING PUMP ROOM
+70 FT+55 FT+40 FT+20 FT+0 FT GRADE-20 FT MOV-7 RCP-1 SOV-1 PRESSURIZER AOV-1 MOV-13 PLANT AIR N 2 5 6 9 10 11 2 4 A 4 B 7 1 3 2 7/21/11 A-02 Revision No
.: Date: Drawing No
.: PLANT LAYOUT SECTION AA SNPP Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 10The SNPP: Auxiliary Building
-RHR Pump Room NOTES: 1. VERTICAL PIPE PENETRATION TO UPPER ELEVATION
.2. PENETRATION TO UPPER FLOOR IS SEALED
.UP MOV-3 MOV-4 RHR PUMP RHR HX VCBT 10 (NOTE 2)HCBT 0 (NOTE 2)HCBT: HORIZONTAL CABLE TRAY VCBT: VERTICAL CABLE TRAY MOV-8 NOTE 1 MOV-20 4 B 4 A MOV-10 MOV-11 MOV-15 MOV-14 AFW-A AFW-B 2 7/21/11 A-03 Revision No
.: Date: Drawing No
.: AUX BLDG EL. - 20 FT SNPP Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 11The SNPP: Auxiliary Building
-Charging Pump Room NOTE: 1. VERTICAL PIPE PENETRATING THE FLOOR.UP VCBT 0 A VCBT: VERTICAL CABLE TRAY VCBT 0 B MOV-1 MOV-9 AOV-3 HPI-A HPI-B MOV-6 MOV-5 NOTE 1 MOV-2 VCT AOV-2 RWST LETDOWN HX CV-3 CV-4 CV-2 1 6/22/09 A-04 Revision No
.: Date: Drawing No
.: AUX BLDG EL. 0 FT SNPP 2 Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 12The SNPP: Auxiliary Building
-Switchgear Rooms UP VCBT +20 A VCBT +20 B HCBT +35 A HCBT: HORIZONTAL CABLE TRAY VCBT: VERTICAL CABLE TRAY HCBT +37 A SWITCHGEAR ROOM A SWITCHGEAR ROOM B BATTERY ROOM A BATTERY ROOM B 120 VAC-A MCC-A 120 VAC-B MCC-B SST-A 4 KV BUS-A 4 KV BUS-B 120 V DC-A 120 V DC-B SST-B LC-A LC-B BC-A INV-A PNL-A BC-B INV-B PNL-B SWG ACCESS ROOM 6 5 7 10 11 9 HCBT +37 A 1 6/22/09 A-05 Revision No
.: Date: Drawing No
.: AUX BLDG EL. +20 FT SNPP Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 13The SNPP: Auxiliary Building
-Cable Spreading Room UP HCBT: HORIZONTAL CABLE TRAY VCBT: VERTICAL CABLE TRAY HCBT +50 B VCBT +40 B VCBT +40 A HCBT +50 A 3 1 6/22/09 A-06 Revision No
.: Date: Drawing No
.: AUX BLDG EL. +40 FT CABLE SPREADING ROOM SNPP Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 14The SNPP: Auxiliary Building
-Main Control Room UP MAIN CONTROL ROOM KITCHEN MCB SHIFT SUPERVIS OR OFFICE CONTROL ROOM ACCESS 7 1 1 6/22/09 A-07 Revision No
.: Date: Drawing No
.: AUX BLDG MAIN CONTROL ROOM SNPP Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 15The SNPP: Turbine Building AOV-4 MOV-16 MOV-19 MOV-17 AFW-C (Diesel Driven
)V-12 CST HCBT +10 A HCBT +10 B 4 KV BUS 1 4 KV BUS 2 SST-1 LC-1 SST-2 LC-2 250 V/DC BUS-1 BC-1 MCC-1 MCC-2 AIR COMPRESSOR 1 MOV-18 ATS BAT-1 BATTERY ROOM 15 12 1 1 6/22/09 A-08 Revision No
.: Date: Drawing No
.: TURBINE BLDG EL. 0 FT SNPP Fire PRA Workshop 2019, Rockville, MDModule 1: Internal Event, At
-Power PRA Model for SNPP Slide 16The SNPP: Main Control Board Layout ELECTRICAL TURBINE AND MAIN FEED RX CONTROL PRESSURELZER CONTROL AUX. FEEDWATER HPI + RHR SW + CCW DG-A DG-B AOV-1 PT-1 MOV-13 MOV-14 , MOV-15 MOV-17 , MOV-16 , MOV-19 AUX. FEEDWATER PUMP A , PUMP C MOV-11 , MOV-10 , MOV-18 SEE DETAIL BELOW LI-1 LI-2 TI-1 MOV-6 MOV-5 RHR PUMP LI-3 LI-4 MOV-4 MOV-3 MOV-9 MOV-1 AOV-3 PUMP HPI-B PUMP HPI-A MOV-2 AOV-2 MOV-8 MOV-7 DETAIL FROM ABOVE TURBINE MAIN FEED CB-6 CB-4 CB-2 CB-1 CB-3 CB-5 CB-7 AOV-4 MOV-20 1 6/22/09 A-09 Revision No
.: Date: Drawing No
.: MAIN CONTROL ROOM MAIN CONTROL BOARD SNPP