ML23241A148

7 to Updated Final Safety Analysis Report, Chapter 7, Figure 7.2-1, Drawing 495878, Sheet 1, Rev. 5, I & C Functional Logic Diagram Safeguards Actuation Signals

ML23241A148
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: ML23241A148 (1)

Text

CONTAI NMENT PRESS URE

!NOTE 4l CONTAI NME NT PURGE EXHA UST DETECTORS CHLORI NE UNI T I MANUAL STEAM GE NERA TOR PRESSURIZER RA D I AT I ON DE TECTORS DETECTORS RADI ATION & I NITIA TION H!CHSTEA M LOW LO<

CHLORI NE PRESSURE SHAMLIN£ PRESSURIZER DETECTORS RHE PRESSURE PRESSURE  ! SIMI LAR TO

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NOTES REFERENCES I. TWOMO MENTARYSWl TCH ES ,A CTUATI ONO F EITHER S'o/lTCH Will A.C TUATE I , FUNCTI ONAL LOGIC D!AGRAM I NDEX AND SYlflOLS __ _ ___ ________ ______________ _______ _ 56S3074 -I ______ 49 5871

2. T WO MOMENTARY PUSH BUTTONS , ACTUATION JS EFFECTED 2.FUNCT10NALL GG!CDIAGRAMREACTDRTRIPS!GNAL S _________________ ___ _ ___ _ ____ _ __ _ 5653D74-2_ _____ 49 S87 2 ONLY ! f BO TH PUSH BUTTONS AR E PRESSED SUMJ L TANEOUS L Y. 3. FUNCTJ OO AL LO GI C DIAGRAM NUCLEAR INSTR ANO MANUAL TRIP SIGNALS ___ _ ____ _ _________ 5653074-L _____ 495813 J. ON E CONTROL SWITCH FOR EACH MAIN STEAM LINE STOP 4. FUNCTJONALLOG!CD I AGRAMNUCLEARINS TRPERM!SSI YES ANO SLOCKS . _ ____ __ _____ ______ 5553074 - 4 _____ 495874 AND EACH BYPASS VALVE 5 . FUNCT10NALLOG I CO IAGRAMPRJ MARY COOL ANTSYST[MTR I P S!GNALS. _____________ ______ 56S3074 - 5 _____ 49S815

4. CONTA I NMENTPRESSUR EBIST A8L ESFORSPRAYACTUAT10N FUNCT!ONALLOG I CDIAGRAMPRESSURIZERTR I PSIGNA LS._ _ _____________ _______ 56530 74 - 6 ______ 495876 AREENERGIZE-TO - ACTUA l[(OlH[R BISTABLES AREOE- ENERG IZE TO-ACT UAT E ), FUNCTIONAL LOGIC OIAGRAM STEAM GENERATOR TRIP SIGNAL$_____ _ _ ____ 5653D'/4-r ______ 495 8 H

5. ENC LOSED CIRCUITRY IS PART OF THE CONTROL ROOM VENT FUNCT IONAL LOG I C OIAGRAM SAFEGUARDS ACTUATI ON SIGNALS ____ ______ _ _ __ _____ ______ 5653074 - 8 __ ____ 495878 AND PRESSURIZATI ON (CRVP) SYSTEM. FUNC T10NALLOG!C DIAGRAMRODCONTROLS ANORODB LOCKS ______________________ _____ 5653074 - 9_ _____ 495879

6. COMPONENTS ARE ALL INDIV I DUALLY SEALED IN (LATCHED) SO 10. FUNCTJONALLOGICOIAGRAMSTEAM DUWCONTROL __ ___________ ________________ _ ____ 5653074-10 _____ 495880 THAT LOSS OF THE AC TUATI ON SIGNA L '<II LL NOT CAUS E THESE I I. FUNCT]OOALLOG !C OI AGRAMPRESSUR! ZER PRESSUREA NDLEVELCONTROI. ._ _ _______ 56530T 4 - ll _ ____ 49 S88 I COMPONENTS TO RETURN TO THE POSITION HELO PR I OR TO THE ADVENTOF THE ACTUA T ION SIGNAL. I2. FUNC TJONALLOCIC OIAGRAMPR ESSURIZERIIEATERC ONIROL ______ _____ _____ ___ ___ __ ___ S653074-I2 ___ _ _ 49 58B2 T. FEEO '<IATER I SOLATION INC LUDES THE TRIPPING OF AL L MAIN I3. FUNCTI ONALLOCIC OIAGRAMFEEOWATERCONTROL ANOISO LATION____ _ __ _____ _ 5653074 - 13 _ ____ 49 5 863 FEEOWATER PU/JPS . I4. FUNCTIONALLOG IC OIAG RAM FEEDWATERC DNTROLANDJSOLAT ION. _______ __ ___ _____ _____ 5553074-I4 ___ __ 49 593 4

8. ~~M~~~57~E~?°LING '<IHER SYSTEM ISOL AT I ON 15 USED ONLY 15 . FUNCTlONALLOC I COIAGRAMAUXIL!ARYF(EOWATERPUf-f'SSTARTLJP _ - ------------- - - __ 5653074 - IS _____ 49 S885 l6. FUNCTJONALLOGIC DI AGRAM TUf!8INETR!PS , RUNBACKS&SIGNALS ______________ ________ 555 3074 -I 5 _____ 4958B6

9. THE REDUNDANT MAN UAL RES ET CONSISTS OF TWO MOMENTARY 17. FUNC T IONALL OG IC OI AGRAMAMSACSIGNALS ____________ _ __________________________ 5653074 - I L ____ 49 5 8BT CONTROLS ON THE CO NTROL BOARD , ONE FOR EACH TRAIN .

I 8. FUNCTI OOALLOG IC OIAGRAMSE ] SMICTRIP _____________________ _ _ ___ _ ____ _________ B759!)77 ________ 49 5999 10 . AUTOMATIC ACTUATION ALSO CLOSES THE BYPASS VALVE I N PARA LLEL WITH THE ASSOCIATED M.,t.JN STE AM LINE STOP VA L VE. 19, FUNCTIONAL LOG IC DI AGRAM DIGITAL FW CONT SYS JNF'U TSICNAL VAL!OATJON__ _ __ __ _ 5653074 - 16 _____ 49 588 9 MANUA L CLOSURE OF EITHER VALVE REQUIRES SEPARATE MANUAL 20 . FUNCTl0NALLGG IC OIAGRAMD I GITALF W CONTSYSFWFlOWCONTROl l [R&CyOEMA N0 ______ 5653 074 - I9_ ____ 49589 0 ACT ION FOR THE OTH ER ASSOCIATED VAL VE 2I.FUNCTIONALLOG IC OI AGRAMO !GITALF W CONTSYS COO TVCVSEQ & TRACK !NGLOGJC __ _ ____ 5653D74 - 20 _____ 49589 I 11 . NUCLEAR STEAM SUPPLY SYSTEM SEQUE NCE REQ UI REME NTS 22. FUNCflONALLOG IC OIAGRAMD IG IT ALF W CONTSYSSl GN ALSELECTORL GG IC 5653074 - 21 _____ 495892 SPECIFIEOBY'<IEST I NG HOUSE.

SHEETNU1"BERSREFERTOTHEREFERENCENUMBERSBELOW,

23. DRAW I NG 1NO EX SOLID STATE P!lOTECTJON SYS l NlERCON NECTION & SCHEM. OlA CRAM _______ _ I080442 -l ___ __ 458862 NUCLEAR SAFETY REL ATED 13 . WH ENEVER A PROCESS SIGNAL I S USED FOR CONTROL AN D DER IVED FROM A PROTECTION CHANN EL , ISOL AT ION MUST BE PR OV IDEO .

14. TfllS ILLUSTR ATE S THE FUNCTIONA L REQUI REMENTS OF THE REACTOR CONTROL ANO PROTECTION SY STEM. n11s DRAWING DOES NO T REPRESENT ACTUAL HAROll'ARE I MPLEMENTATION . KEY OWG . SECT I ON _ 3 _

FOR HAR DWA RE IMPL EMENTATION, REF ER TO APPLICABLE SCHEMATIC. UN I T 2 FUNCTIONALLOGJCOJACRA M SAFEGUAROSACJUAT I ONSIGNALS