ML23241A148

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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: ... further results
References
DCL-23-044
Download: ML23241A148 (1)


Text

STEAM GENERA TOR PRESSURIZER H!CHSTEA M PRESSURE RHE

<REF. 7l LOW SHAMLIN£ PRESSURE (REF. 7)

LO<

PRESSURIZER PRESSURE lSHE£T6)

MAANNUDAL8t0~SkET (N0TE9)

CLOSE STEAM I GEN BLOWOOWN ISOL VALVES C!.C.)

NOTES I.

TWOMOMENTARYSWl TCHES,ACTUATI ONOF EITHER S'o/lTCH Will A.CTUATE

2.

T WO MOMENTARY PUSH BUTTONS, ACTUATION JS EFFECTED ONLY ! f BOTH PUSH BUTTONS ARE PRESSED SUMJLTANEOUSLY.

J.

ONE CONTROL SWITCH FOR EACH MAIN STEAM LINE STOP AND EACH BYPASS VALVE

4.

CONTA I NMENTPRESSUREBISTA8L ESFORSPRAYACTUAT10N AREENERGIZE-TO - ACTUAl[(OlH[R BISTABLES AREOE-ENERG IZE TO-ACTUATE ),

5.

ENCLOSED CIRCUITRY IS PART OF THE CONTROL ROOM VENT AND PRESSURIZATI ON (CRVP) SYSTEM.

6.

COMPONENTS ARE ALL INDIV I DUALLY SEALED IN (LATCHED) SO THAT LOSS OF THE AC TUATI ON SIGNAL '<II LL NOT CAUSE THESE COMPONENTS TO RETURN TO THE POSITION HELO PR I OR TO THE ADVENTOF THE ACTUA TION SIGNAL.

T.

FEEO '<IATER I SOLATION INC LUDES THE TRIPPING OF ALL MAIN FEEOWATER PU/JPS.

8.

~~M~~~57~E~?°LING '<IHER SYSTEM ISOLAT I ON 15 USED ONLY

9.

THE REDUNDANT MANUAL RESET CONSISTS OF TWO MOMENTARY CONTROLS ON THE CONTROL BOARD, ONE FOR EACH TRAIN.

10.

AUTOMATIC ACTUATION ALSO CLOSES THE BYPASS VALVE I N PARALLEL WITH THE ASSOCIATED M.,t.JN STEAM LINE STOP VA LVE.

MANUA L CLOSURE OF EITHER VALVE REQUIRES SEPARATE MANUAL ACT ION FOR THE OTHER ASSOCIATED VALVE 11.

NUCLEAR STEAM SUPPLY SYSTEM SEQUENCE REQUI REMENTS SPECIFIEOBY'<IEST I NGHOUSE.

SHEETNU1"BERSREFERTOTHEREFERENCENUMBERSBELOW, 13.

WHENEVER A PROCESS SIGNAL I S USED FOR CONTROL AND DER IVED FROM A PROTECTION CHANNEL,

ISOLAT ION MUST BE PROV IDEO.

14.

TfllS ILLUSTRATES THE FUNCTIONAL REQUI REMENTS OF THE REACTOR CONTROL ANO PROTECTION SYSTEM.

n11s DRAWING DOES NOT REPRESENT ACTUAL HAROll'ARE I MPLEMENTATION.

FOR HARDWARE IMPL EMENTATION, REFER TO APPLICABLE SCHEMATIC.

CONTAI NMENT PRESSURE

!NOTE 4l CONTAI NMENT PURGE EXHAUST DETECTORS (NOTE 4J 2/4 HI-HI 1

MA NUAL ACTUATI ON FROM CONTROL BOARD 7

I STEAM...lNE ISOL AT ION

! NOT[31 I ----------

I I

'""IS~'""' B I CONT ~ENT ISO!.

!NOTE2l REFERENCES I, FUNCTI ONAL LOGIC D!AGRAM I NDEX AND SYlflOLS __ _ ___ ________ ______________ _______ _ 56S3074 -I ______ 495871 2.FUNCT10NALLGG!CDIAGRAMREACTDRTRIPS!GNALS _________________ ___ ____ _____ ___ _ 5653D74-2_ _____ 49S87 2

3. FUNCTJ OOAL LOGI C DIAGRAM NUCLEAR INSTR ANO MANUAL TRIP SIGNALS ___ _____ __________ 5653074-L _____ 495813 4.

FUNCTJONALLOG!CD I AGRAMNUCLEARINSTRPERM!SSI YES ANO SLOCKS. _____ __ _____ ______ 5553074 - 4 _____ 495874 5.

FUNCT10NALLOG I CO IAGRAMPRJ MARY COOL ANTSYST[MTR I P S!GNALS. _____________ ______ 56S3074 - 5 _____ 49S815 FUNCT!ONALLOG I CDIAGRAMPRESSURIZERTR I PSIGNALS._

_ _____________ _______ 5653074 -6 ______ 495876 FUNCTIONAL LOGIC OIAGRAM STEAM GENERATOR TRIP SIGNAL$_____ _

_ ____ 5653D'/4-r ______ 4958 H FUNCT IONAL LOG I C OIAGRAM SAFEGUARDS ACTUATI ON SIGNALS

____ ______ ____ _____ ______ 5653074 - 8 __ ____ 495878 FUNCT10NALLOG!C DIAGRAMRODCONTROLS ANORODBLOCKS ______________________ _____ 5653074 - 9_ _____ 495879

10. FUNCTJONALLOGICOIAGRAMSTEAM DUWCONTROL

__ ___________ ________________ _____ 5653074-10 _____ 495880 I I.

FUNCT]OOALLOG !C OIAGRAMPRESSUR! ZER PRESSUREANDLEVELCONTROI.._

_ _______ 56530T4-ll _ ____ 49S88 I I2.

FUNCTJONALLOCIC OIAGRAMPRESSURIZERIIEATERCONIROL ______ _____ _____ ___ ___ __ ___ S653074-I2 ___ __ 4958B2 I3.

FUNCTI ONALLOCIC OIAGRAMFEEOWATERCONTROL ANOISOLATION____

_ __ _____ _ 5653074 - 13 _____ 495863 I4.

FUNCTIONALLOG IC OIAGRAM FEEDWATERCDNTROLANDJSOLAT ION. _______ __ ___ _____ _____ 5553074-I4 ___ __ 495934 15.

FUNCTlONALLOC I COIAGRAMAUXIL!ARYF(EOWATERPUf-f'SSTARTLJP _ - ------------- - -

__ 5653074 - IS _____ 49S885 l6.

FUNCTJONALLOGIC DI AGRAM TUf!8INETR!PS, RUNBACKS&SIGNALS ______________ ________ 5553074 -I 5 _____ 4958B6 17.

FUNCTIONALLOG IC OI AGRAMAMSACSIGNALS ____________ ___________________________ 5653074 - I L ____ 4958BT I 8.

FUNCTI OOALLOG IC OIAGRAMSE ] SMICTRIP _____________________ _____ _____ _________ B759!)77 ________ 495999 19, FUNCTIONAL LOG IC DI AGRAM DIGITAL FW CONT SYS JNF'UTSICNAL VAL!OATJON__

_ __ __ _ 5653074 - 16 _____ 49 5889 20.

FUNCTl0NALLGG IC OIAGRAMD I GITALFW CONTSYSFWFlOWCONTROll [R&CyOEMAN0 ______ 5653074 - I9_ ____ 495890 2I.FUNCTIONALLOG IC OIAGRAMO !GITALFW CONTSYS COOTVCVSEQ & TRACK !NGLOGJC __ _____ 5653D74 - 20 _____ 49589 I 22.

FUNCflONALLOG IC OIAGRAMD IG ITALFW CONTSYSSl GNALSELECTORLGG IC 5653074 - 21 _____ 495892

23. DRAWI NG 1NOEX SOLID STATE P!lOTECTJON SYS l NlERCONNECTION & SCHEM. OlACRAM _______ _ I080442-l ___ __ 458862 KEY OWG. SECT I ON _ 3 _

RAD I AT I ON DETECTORS CHLORI NE UNI T I MANUAL DETECTORS RADIATION &

INITIA TION L___

CHLORI NE DETECTORS

! SIMI LAR TO UNIT 1l R l 25 Rl26 ANSl9AX ANS20AX s:: NOTE 5 ____

NUCLEAR SAFETY REL ATED UN I T 2 FUNCTIONALLOGJCOJACRA M SAFEGUAROSACJUAT I ONSIGNALS