ML23241A250

7 to Updated Final Safety Analysis Report, Chapter 7, Figure 7.2-1, Drawing 495850, Revision 3, Sheet 1, Electrical Functional Diagram Steam Dump Control

ML23241A250
Person / Time
Site:	Diablo Canyon
Issue date:	05/25/2023
From:	Pacific Gas & Electric Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML23241A052	List: DCL-23-044, 7 to Updated Final Safety Analysis Report, Chapter 9, Figure 9.4-10, Drawing 512904, Revision 15, Mechanical Air Monitoring Technical Support Center and Post-Accident Sampling System Air Flow Diagrams ML23241A053 ML23241A054 ML23241A055 ML23241A056 ML23241A057 ML23241A058 ML23241A059 ML23241A060 ML23241A061 ML23241A062 ML23241A063 ML23241A064 ML23241A065 ML23241A066 ML23241A067 ML23241A068 ML23241A069 ML23241A070 ML23241A071 ML23241A072 ML23241A073 ML23241A074 ML23241A075 ML23241A076 ML23241A077 ML23241A078 ML23241A079 ML23241A080 ML23241A081 ML23241A082 ML23241A083 ML23241A084 ML23241A085 ML23241A086 ... further results
References
DCL-23-044
Download: ML23241A250 (1)

Text

TURBINE IMPULSE CHAMBER PRESSURE c:d/@'b_*:.* AUCT I O~EERED T AYG

__ ~m:t SELECT ISHEE1Tll l REFERENCE T AVG INTERNAL SETPOINT STEAH CONDENSER AVAILABLE SIGNALS HEADER PRES;3URE STEAM LINE PRESSURE REACro-R4 TRIP i STEAM DUMP CONTROL NODE TR1AStM((\i:i~\M

" A" "8' i

I 1 SELECTOR SW

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! I l<lOULATE ~ODULATE 1-00ULATE l<lOULATE THELOCF I THE LOO~ Z TMELOOP3 TM[ LOO~ ~

All<lVH(~IC All<lVH [ ~IC ATM:JSPMERIC A 111)Sl"Ml~ I C

~ELIEF HL~E ~El IEF VALVE RELIEF VALVE ~ELIEF HL~E PCV- 11 ~n-20 PCV -21 1>cv-n

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8L0Cl SIM DUl4' I 4 8L0Cl SHI DU"" JALL TAIPCf'[II COOLOO .... COMDEMSER COIID[MSE~ DUl4' Ul<ISPH[RIC l.:;c-c--twti~,'-';,'--~~~------1 DUI-FVH¥ES l YAL\'[S DCEn DU.PVHVES:

THE4COOLDOlill nV-49, ~o. ~I, ~l. ~3, ~CV- i,, lO , 2 1 , 22

-- ,c,-,,,.,.' 01.J,FVALVES J ~4, ' ' * " L &7 NOTES REFERE NCES WE DWG PG&E DWG 2, CIRCUITRY ON TH IS SHEET !SNOT REDUNDANT EXCEPT WHERE INDICATED REDUNDANT. FUNCT!ONAL LOGIC DIAGRAM JNOEX ANO SY~OLS _5653074-1 ____ 49584 I 3, SELECTOR SWITCH WITH THE FOLLOWING3POSITIONS: FUNCT!ONALLOGICOIAGRAMREACTORTRIPSIGNALS 5653074-2 . 495842 ON STEAM DU~ IS PERMITTED 3. FUNCTIONALLOGICDIAGRAMhUCLEARINSTRANOMANUALTRIPSIGNALS_ __5653074-3 ____ 495843 BYPASS - TAVG INTERLOCK ISBYPASSEDFORLO-LOT AVG. SPRING RETURN TO 4. FUNCTTONAL LOGIC DIAGRAM hUCLEAR INSTR PERMTSSIVES ANO BLOC KS ............................. 5653074-4 . 495844

" ON" POSITION. 5. FUNCTIONALLOGICDIAGRAMPRIMAR Y COOLANTSYSTEMTRIPSIGNALS 5653074 - 5 OFF" -STEAM DUMP !SNOTPERMJ TT EDANDRESET T AVGBYPASS. 6. FUNCT!ONAL LOGIC DIAGRAM PRESSURIZER TRIP SJGNALS 5653074 -6 ____ 495646 THE Rrnui.o,o,n INTERLOCK SELECTOR SWITCH CONSISTS OF TWO CONTROLS m, THE 7. FUNCTIONALLOGICDIAGRAMSTEAMGENERATORTRIPSIGNALS 5653074 - 7 C

coi.TROL BOARD, ONE FOR EACH TRA I N. .------------~ ~ - ~ 8. FUNCllONAL LOGIC DIAGRAM SAFEGUARDS ACTUATION SIGNALS _5653074-8 ____ 495848 TH IS MEDIA'- SIGi.AL SELECT Ai.D T-REFEREi.CE IS DERIHD FROM SOf"T'ol'.,l,..RE FLtiCTI(loj 9. FUN CT ION AL LOG IC DI AGRAM ROD CONTROLS ANO ROD BLOCKS 5653074-9 ____ 495949 BLOC~$ Ii. PCS SE T 1. MEDIAN SJGMAL SELECT ,1,i.D T -REFEROiCE FCfl ROO C(lojTf!O._ <RU . 10. FUNCT!ONAL LOGIC DIAGRAM STEAM OUl-1' CONTROL __ _5653074-10 _ _ 495850 JS DERIVED FROM SOFT I/ARE Fui.cr roi. f!LOC~S Ii. PCS SE T 1v. THJS P1'i'OV I ocs ,1, F.1.UL T 11 . FUNCTlONALLOGICOIAGRAMPRESSURIZERPRESSUlEANOL EVELCONTROL . 5653074-11 495851 TOLERAN T SYSTEM FOR SINGLE Ii.PU T FAILURES.

12 . FUNCTTONAL LOGIC DIAGRAM PRESSURIZER MEATER cmHROL .5 653074-12 . 495852

5. THE RELIEF VALVESSTARTMODULATINGOPENATPOINTWHEREALLDUMPVALVES 13. FUIKTIONAL LOGIC DIAGRAM FEEDw'ATER CONTROL A'W ISOLATlmJ 5653074 - 13 495853 SHOULD BE FULLY OPEN. 14. FUNCTIONHLOGICOIAGRAMFEEDw'ATERCONTROLANDISOLHION _5653074-14_ 495854

6. HIE REOUi.DAN T LOGIC OU TPUT OPERATES 2 SOLEi.OJO VAL'fES Ji. SERIES IM THE A!R 15. FUNCTIONAL LOGIC DIAGRAM AUXILIAR Y FEEDWATER PU ff' S STARTLE' _5653074 - 15_

LINE BEHIE[N TH[ HAI'- AIR SUPP LY A'-0 EACH RE LI EF VALVE DIAPHRAGM. TH[ 16. FUNCT!ONAL LOGIC DIAGRAM TURBINE TRIPS, RUNBACKS !.. SIGNALS 5653074 -16 495856 SOLENOID VALVES ARE DE-E'-ERGJZED TO CLOSE . IIHICH REDUNDANTLY STOPS TH[ TRIP 17 . FUNCTIONAL LOGIC DIAGRAM AMSAC SIGNALS 5653074-17 OPENFUMCTION.

18. FUNCT!ONAL LOGIC DIAGRAM SEISMIC TRIP _8759077 _____ 495858

7. THE CONDENSER AVAILABLE SIGNAL LOGIC IS TYPICAL . ACTUAL I MPLEHENTATION 19. FUNCT!ONAL LOGIC OIAGRAMOJGITAL FWCCtlT SYS INPUT SIGNA L VALIDATION 5653074-18 495859 MA Y BE D I FFERENT. 20. FUNCTIONAL LOGIC DIAGRAM DIG ITAL Fl<,' CCtlT SYS Fl<,' FLOw' cmHROLLER & Cv DEMAND 5653074-19 495860

8. THE REDUNDANT TAVG INTERLOCK CONSIST OF 2CONTACTS IN SERIES TO 21. FUNCTTONAL LOGIC DIAGRAM DIGITAL Fw' CCtlT SYS coin vcv SEO & TRACKING LOGIC . . . . . . 5653074 - 20. 49586 1 REOUNDANTLYSTOPTH!STRANSFERSIGNAL. 22. FUNCTIONAL LOGIC DIAGRAM DIG ITAL Fl<,' CONT SYS SIGNAL SELECTOR LOGIC ___________ 5653074 - 21 495862

23. FUNCTION DIAGRAM REACTOR-TURBINE-GENERATOR PROTECTION 500825

9. LIGHTS SHOULD BE PROVIDED IN THE CONTROL ROOMFOREACHOUMPVALVETO JNOICATE\o'HENTHEVALVE !SFULLYCLOSEDOR FULLYOPEN. 24 . SCHEMATIC DIAGRAM STEAM DUMP SOLENOID VALVES _ _ _ _ _ _ _ _ _ _ _ __

10. TH[STEAHLl'-EPR[SSUR[SJGNALORIGI'-HUSTeEOIFF[R[NTFROMTHATWHJCH IS USED FOR ST[AHL!N[ DIFFERENTIAL PRESSURE SAF[TT l'-JECTJON SIGNAL SHO\<<N oi. SHEET 7 TO MEET TH[ SJ'-OLE FAILURE CRITER!OM.

II . SHEET NUMBERS REFER TO THE REFERENCE NU~ERS BELO\</.

12. \,/l-lENEVERAPROCESSSIGNAL ISUSEO FORCONTROLAND ISDER IVEDFROMAPROTECTION CHANNEL, ISOLAT ION MUST BE PROVIDED. NUCLEAR SAFETY RELAT ED 13 . TH I S ORAi/ING I LLUSTRATES THE rni.cTJoi.,1,L REQU I REMENTS OF THE REACTOR CONTROL AHO ~ROTECTIOi. srSTEM. THIS DRA\/Ii.o DOES NOT REPRESEi.T ACTUAL HARDI/ARE IMPLEMEi.TATIOi.. FOR HARDI/ARE IMPLEMEi.TATIOi., REFER TO THE APPLJCAeLE SCHEMATICDIAGRAHIS J.

KEY DWG. SECTI0N_3_

UNIT I FUNCTIONAL DIAGRAM STEAM DUMP CONTROL