ML20079R735
| ML20079R735 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 05/31/1983 |
| From: | Cihi J GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20079R733 | List: |
| References | |
| NUDOCS 8306240232 | |
| Download: ML20079R735 (46) | |
Text
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SHOREHAM C0tMON SENSORS FAILURES j EVALUATION REPORT l
' I MAY 1983 l
PREPARED FOR LONG ISLAND LIGHTING COMPANY SHOREHAM NUCLEAR POWER STATION I
l PREPARED BY J. J. CIHI GENERAL ELECTRIC COMPANY NUCLEAR ENERGY BUSINESS OPERATIONS SAN JOSE, CA 95125 l
APPROVED:
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_a_ -__
l T. R. WORTHAM, MANAGER l
TECHNICAL LICENSING NUCLEAR CONTROL AND INSTRUMENTATION DEPARTMENT ccfg l
E. C. ECKERT, MANAGER FIANT TRANSIENT PERFORMANCE ENGINEERING NUCLEAR POWER SYSTEMS ENGINEERING DEPARINENT c -- -
P. A. 30HM, SENIOR LICENSING ENGINEER SAIITY AND LICENSING OPERATION 12-0287 8306240232 830620 1 PDR ADOCK 05000322 E PDR
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CONTENTS ,
1 PARAGRAPH '
., PAGE 4 1.0 Object 1 2.0 Conclusions 1 3.0 Analysis Nethodology 2 4.0 Common Sensor Summary Results and 5 Chapter 15 Comparison l
TABLE PAGE Conson Sensor Failure Table I thru 38 1
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i Cott10N SENSORS FAILURES EVALUATION REPORT FOR IANG ISLAND LIGHTING COMPANY SHOREHAM NUCLEAR POWER STATION 1.0 OBJECT This document constitutes:
e An analysis in response to the NRC concern that the failure of an instrument line which contains sensors to multiple control systems could result in consequences outside the bounds of the Shoreham Nuclear Power Station (SNPS) Final Safety Analysis Report (FSAR)
Chapter 15 analysis and beyond the capabilities of operator responses or safety systems.
e A positive demonstration that adequate review and analysis has been performed to ensure that, despite such failure, the Shoreham FSAR Chapter 15 analyses are bounding, and no consequence beyond the capability of operator responses or safety systems would result.
A comprehensive approach was developed by General Electric (GE) to analyze the control systems capable of affecting reactor water level, pressure, or power in the SNPS Control Systems Failures Evaluation Report. This report uses the knowledge gained from the Control Systems Failures Evaluation Report for a valid restriction of this analysis to only those systems, which affect reactor water level, pressure or power.
This report was prepared by GE for the Long Island Lighting Company's (LILCO) Shoreham Nuclear Power Station with a significant technical contribution from the Stone & Webster Engineering Corporation (SWEC), the principal architect engineer.
2.0 CONCLUSION
S This report, supplemented by the existing FSAR Chapter 15 transient analyses, documents an evaluation of the Shoreham Nuclear Power Station for common sensor failures. Evaluation of a broken or plugged instrument standpipe on the feedwater heaters indicated that there would be a reduc-
, tion in the temperature of the feedwater to the reactor vessel and/or a j turbine trip. This combined loss of feedwater heating plus turbine trip l
transient was not analyzed in Chapter 15 analyses. Subsequent evaluation of reduced feedwater temperature, followed by a turbine trip, indicates the consequences to be bounded by the events considered in the Chapter 15 analysis. All of the analyzed consequences of common instrument failures
..are bounded by FSAR Chapter 15 analysis.
3.0 ANALYSIS METHODOLOGY The common sensor failure analysis was conducted in the following manner by GE and SWEC:
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i Activity Assianed To i
- Summarize Common Sensor Failures GE
- Analyze Combined Effects GE
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- Compare Results to Chapter 15 GE
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- Analyze Exceptions GE
- - Modify / Augment Chapter 15 if Necessary GE l 3.1 IDENTIFY COMMON SENSORS !
The following systems have been identified as being capable of affecting reactor parameters:
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SYSTEMS CAPABLE OF AFFECTING REACTGR WATER LEVEL, PRESSURE, OR POWER )
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MPL Systems l
r B21 Nuclear Boiler l B31 Reactor Recirculation J i
C11 CRD Hydraulic C32 Feedwater l CSI Neutron Monitoring D11 Process Radiation Monitoring 1 l D21_ Area Radiation Monitoring
( G33 Reactor Water Cleanup N11 Exhaust Steam N21 Condensate and Feedwater '
N32 Main Turbine Control I N34 Main Turbine and Feedwater Turbines Lube Oil ;
,_ N35 Moisture Separator and Heater Drains 1 N36 Bleed Steam - Extraction Steam <
N42 Main Generator Hydrogen and Hydrogen Seal l N43 Main Generator Cooling N44 Air Removal N45 Generator Hydrogen and CO2 I
, N51 Main Generator Excitation l
. N62 Offgas l N71 Circulating Water l P41 RB Service Water !
P42 RB Cooling Water I P43 TB Cooling Water '
P50 Compressed Air P71 Low Conductivity Drains 293 Primary Containment Instrumentation 12-0287 4
. . , .. 2 --__ _ __u = = - := _ . _ _ _ __ __ _ __ .
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- l The systems which can affect reactor parameters, as determined by the !
Control Systems Failures Evaluation Report, were analyzed for multiple j system sensors or multiple system contacts from a common instrument line, i 4
Instrument lines which serve only one system were eliminated because their I failure effects are bounded by the current Chapter 15 analysis. ;
l 3.2 DETERMINE FAILURE MODES 1
An instrument line may fail in the following ways. A broken line will cause pressure instruments to falsely sense a low pressure condition. For l a differential pressure instrument a broken reference line will result in ,
a maximum differential pressure condition, while a variable line break l will cause a minimum differential pressure condition. Because of the very !
smell line break, the depressurization and loss of coolant effects are i negligible for all of these analyses. I l
A plugged or pinched line will maintain the instrument at the condition it !
was at the time of failure. To ensure the worst case Chapter 15 conse- l quence is represented the pinched or plugged line will be analyzed at full i power. Any line failures which produce instrument conditions differing ;
from those described above are bounded by those conditions produced by the ;
completely broken or completely plugged cases.
l 3.3 SUMMARIZE COMMON SENSOR FAILURES The common sensor failure table (attached) lists the results of this investigation. The table identifies all instruments .which are connected to a particular line, their failure modes, and their direct effect on the reactor.
3.4 ANALYZE COMBINED EFFECTS This step totaled all of the individual effects of each instrument failure. The interaction of each effect relative to one another was evaluated and combined effect consequences were determined and are de-scribed in Section 4.0, " Common Sensor Summary Results and Chapter 15 Comparison."
3.5 COMPARE RESULTS TO CHAPTER 15 The combined effects, as identified in Section 4.0, were compared to the existing Chapter 15 analysis to determine if any new transient was dis-covered which is not bounded by the current analysis.
3.6 ANALYZE EXCEPTIONS
. . There were no exceptions to FSAR Chapter 15 analysis.
3.7 MODIFY / AUGMENT CHAPTER 15 IF NECESSARY This step was not necessary in the Shoreham analysis.
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i 4.0 C0ftt0N SENSOR SIR 91ARY RESULTS AND CHAPTER 15 COMPARISONS Instrument Line* Line Failure Consequences i
No. 1 None, i No. 2 A break of this line will cause immediate reduction of i feedwater flow. At worst, this will be identical to a loss of feedwater event as described in the Chapter 15 analysis.
A plugged line can cause, at worst, a loss of feed-water event or feedwater controller maximum demand event. Both of these events are considered in the Chapter 15 analysis.
L No. 3 A break in this line will immediately initiate a i reactor scram and cause an increase in feedwater flow.
I Reactor scram takes precedence over other transients
[ and is considered in the Chapter 15 analysis.
A plugged line will produce the same consequences as described for Line No. 2.
I c No. 4 None i
! No. 5 A broken instrument line vill initiate a main and feedwater turbine trip. This sequence is similar to the loss of feedwater event described for Instrument Line No. 2.
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A plugged line will produce the same consequences as
- described for Instrument Line No. 2.
No. 6 A broken instrument line will cause an immediate increase in feedwater flow and also disable all high level turbine trip logic. This event is described in Chapter 15 analysis and is similar to the failure of the feedwater controller maximum demand with an additional single failure.
A plugged line will produce the same consequences as described for Instrument Line No. 2.
Nos. 7,9,11,13 A break in any of these lines will cause feedwater flow to decrease. This will ultimately lead to a
, reactor scram on low reactor water level. This event
( is bounded by the analyzed loss of feedwater event I
described in the Chapter 15 analysis.
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- See lower left corner of each table page.
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Instrtusent Line Line Failure Consequences I l
A plugged line will cause an error in feedwater steam flow following resulting in, at worst, a gradual increase or decrease in reactor water level. Both events are bounded by the Chapter 15 analysis.
Nos. 8,10,12,14 A break in any of these lines initiates an immediate MSIV closure and increase in reactor feedwater flow.
i The MSIV closure event will take precedence, causing a i reactor scram as the MSIVs begin to close. This event j is considered in Chapter 15 analysis.
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A plugged line will produce the same consequences as described for Instrument Line No. 7.
Nos. 15,16 A break in one of these lines initiates rod block.
Rod block will not cause adverse consequences.
A plugged line causes no consequences that affect
' reactor water level, pressure or power, l l
Nos. 17,19,21,23,'25 A break in any of these lines would result in a reduc- i
-- tion in temperature of feedwater to the reactor !
vessel. This event is bounded by Chapter 15 analysis. l A : plugged line could cause either a false high or false low water level signal in the heater or re- !
heater. This' would result in a reduction in temper-ature of feedwater to the reactor vessel and/or a j
turbine trip. The feedwater temperature could drop by an estimated 20'F. Subsequent evaluation of reduced ;
feedwater temperature, followed by a turbine trip, indicate the consequences to be bounded by the events considered in Chapter 15 analysis.
- Nos. 18,20,22,24,26 A break in any of these lines would result in a j reduction in temperature of feedwater to the reactor i
vessel and/or a turbine trip. Subsequent evaluation of reduced feedwater temperature, followed by a turbine trip, indicate the consequences to be bounded by the events considered in Chapter 15 analysis.
A plugged line could cause either a false high or false low water level signal in the heater or re-heater. This would result in reduction in temperature
.. of feedwater to the reactor vessel and/or a turbine
~ trip. The feedwater temperature will drop by an estimated 120'F. Subsequent evaluation of reduced feedwater temperature, followed by a turbine trip, indicate the consegences to be bounded by the events considered in Chapter 15 analysis.
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e Instrument Line Line Failure Consequences No. 27 A break of this line would possibly result in isola-tion of the Reactor Water Cleanup System. This will not affect reactor water level, pressure, or power.
A plugged line causes no consequences that affect reactor water level, pressure, or power.
No. 28 A break in this line causes no consequences that affect reactor water level, pressure, or power.
A plugged line causes no consequences that affect reactor water level, pressure, or power.
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!i SHOIIEIWI COISIDW SENSOR FAILURE TABt2
'* TARE PGE 1
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FAIL M TT M i, IMBBEM TAP (Mr1 OIt ST5TWI ID SENSOR IFL FLUC AD) FRitt4RT EFFECT SEC M EFFECT (NBBI M EFFECT W CLEAR B21-9027 M'REN IthEIIERE IIBACTOR VESSEL DIFFEllENTIAL 821-R60$ IETElt IBOFERATIM Wi m BOIRER FRESSUllE SIGNAL (LEVEL)
FL MEED IIIACCtstATE IEACTOR VESSEL DIFFER- 321-3605 IETER AT IIIACCIRAM NOW
! ENTIAL F98mm SIGIIAL (12 VEL) ItEADIIIG t
- MAXIIRBI DIFFEIIElfflAL N m C32-II648 IECOISER IIIDFERATIM NOIE FEREIETER C32-IISI7 SIGaAL (vlDE RApGE-wSET IEACTOR 12 VEL)
FLDOEED IIIACCERATE DIFFEMirTIAL FM C32-R606 REC 0NIER AT IRACCtmAM IIM SIGIIAL (vlDE IUWeGE-UPSET REACTUlt ItEADIIBC LEVEL)
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I IIBSTItUDENT LINE I 3/4"-E-22-1502-2 "B" SIDE ItEFERENCE LEG PAGE I OF 1 12-0295 (I)
SNORENAM (XNION SENSOR FAILURE TABLE 4
TARIA Fade 2
, , FAP = TTFE
! Celens far -
(enOuxu OR sTsfum le amSoR IrL FLaGGEs) FRInART E m CT SECOsanRT EFFECT cnEluss sFPsCT BUCERAR 321-N20C M0EIN NOR; FRESSWE SWITCM 110 IANGER NONE EDE i BOIIER AIS IN RFS CIRCUlf, E11CTRICALLY 321-11020D DISABI2D f
FLUGERB ED E ; FE SSW E SWITCH NO IANGER
[ IN RFS CIRCUIT, EIECTRICALLY NOK BOE f, DISABIED
.t 321-BB97C MOEEN MINIMING F ESSURE SIGNAL Ist IAW FM FEgggggIR gygTER BOE l AND 321-N0979 A AND STSTDI B; ATUS & RPT CE
'[ NICII PRESSWE TRIP DISABIAD; 4 MCIRC DISCuARGE VALu Clasm E ,
- FEMIS81VE
, FLUGGED C011STANT FItESSME SIGRAL % M IAW FMSSW ST5 fell A AE Elm SYSTEM B TRIP INOFERATIVE; ATWS/
l- RPT CED RIGil FRESSU E TRIP DISASIJD; LOSS OF RECIRC Diernaam VALVE CIASINIE FEMISSIVE B219-Be70C manrmt MINIMt31 FRES$4Ett SIGIIAL RICE PRESSWE SCRAN TRIP FOR IION Am CIIANNEls "A2" AIID "32" DISABIED; 321-5078D "Al" AIID "Bl" BAGUF AVAIIASIA FLUGGED CONSTAlff PRESSURE SIGIIAL EIGN FRESSWE SCRAM TRIP FOR HOR CNAINIELS "A2" AND "B2" DISASIED; "Al" AND "Bl" BACEUF AVAllABIE i.
IIETIRBElif LIE 2 3/4"-E-24-1502-2 "B* SIDE MFERElICE IIG
, FAGE 1 0F 4 l 12-02ss (2) t
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- SNORENAlt COIMON SENBOR FAILINE TABI2 TW2 FAS 'i !
! FAIL W TTFE
, CWOME TAP (3806 5 OR 7 STWW 19 unens lyL PLUceD) FRIMART EFFECT WN IFRCT CWWIM EFFECT __
t MIV-IES E32-5950 BROEIN MINIWWE PRESStRIE SIGNAL MAIN STEAM LIM FMSSW MI4W NW AND SETrolNT; ISIV-IIS INBOAMI SYSTWI E32-IIO60 PEllMISSIVE FOR MANUAL INITIATION AND lETER E32-M60 INOFERATIVE PLUGGED CONSTANT FIIESSUIE SIGNAL IqAIN STEAM LIM PM SS W ABOUR NOR SEfrotNT; MSIV-LCS INgoA m STSTWI IIIDFERATIVE AIS lETER E32-R660 AT -
NUCl2AR 321-BO90C 380 518 ftAXilGRI DIFFEllElff1AL FitESSUltE WTER LEVEL 3 SCRAlt CIIAINELS "A2" WDR BOIIER AIID SICIIAL (LEVEL) ABID "B2" IIIDFERATIVE; "Al" AIS "Bl" 321-18080D BACEUF AVAIIABLE PLUGCED INACCUltATE DIFFEllElrTIAL FIIESSUllE WTER 12 VEL 3 SGAM Cilm12 "A2" NOR SIGIIAL (LEVEL) ABID *B2* IIIOFERATIVE; "Al" AIID "B1" BACEUF AVAILABIX NUCl2AR 321-5055B MOREll MINIMIDI PRESSUllE SICIIAL 12 VEL / PRESSURE M N B21-R6238 WDR BOII2R IIIDFERATIVE; itECORDER AT lilGil SPEED PLUGGED CONSTAll? F1tESSUltE SICIIAL I2 VEL /PRESSUllE IECORDER 321-116238 NW AT CONSTANT READING I
B21-110953 BIIOIEN MAXIMUM DIFFEltElrTIAL FftESSINtt ADS (B) WTER LEVEL 3 PEllMISSIVE IIONE SIGNAL (LEVEL) IDST.
FLUCCED INACCUltATE DIFFT.ItENTIAL FitESSINtE ADS (B) WTER 12 VEL 3 PEllMISSIVE IIONE SIGNAL (LEVEL) IDST.
IIISTItUPENT LINE 2 3/4"-E-24-3%D2-2 "B" SIDE RETT.RENCE LEC FACE 2 OF 4 12-0285 (3)
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l-l SNORERAM COIGION SENSOR FAILIIIE TABIA
. TAME PAS 4 l1 Fall M TT M
!! CEBBRE TAP (BROE D OR SECO W ANT EFFECT CIBBIMD EFFECT FRIIIARY EFFECT j' WWIBI TD 553163 IWL FLUGCED)
EIIIIIAR TD 183B SF FugimIER
.> C32-36068 IIATER 12WL mm8mmR*
FREBMTER C32-IIse6B 30EEli MAEIIRet DIFFERElrTIAL FIRESSURE INOFERATIVE; REA(*0It FEEINmTER EVElff,12 ABS 10 BCRAII, ISIV SIGNAL (12 VEL) CIASW M , NFCI/BCIC INITIATIM DECREASED FIDW C32-3606B IRACCINIATE IEADIBB; WASRAL IWCMAS M EBUCT13 FI;IGGED IIIACCtNtATE DIFFEltWrTIAL PRESSINtE OF 12 VEL IN IEACTUR.
SIGNAL (12 VEL) IIEACTOR FEEDWATER ERROR IN 12 VEL FOLIDWIIIG COM SFRAT ST5 twt B INITIATICII IION 321-59913 mannes MAXIIIIBI DIFFERElff!AL FItESSURE NUCl2AR IMOPEltATIVE; lugt ST51 Elf B INITIA.
BOII25t AIW SIGNAL (I2 VEL) 71018 IIIOFERATIVE; ATWS-ARI
- 321-180919 STSTEM B INITIATICII IMOFERATIVE;
- ATWS-RPT STSTEM B INITIATICII i IMOPEllATIVE; % IIPCI/DCIC TUltBIM l TRIP SICWAL.
CORE SFItAT ST5 TEM B INITIATION BOR FLUCCED IIIACCURATE DIFTTIIENTIAL FitESSilltE IIIOPERATIVE; RIst SYSTEM B INITIA-
' SIGNAL (IEVEL) TION IIIOPEltATIVE; ATWS-Alt!
STSTEM B INITIATICII IIIOPERATIVE; ATWS-RPT STSTEM B INITIATIolt IIIOPERATIVE; NPCI INJECT 10It SNUTOFF IIIOPERATIVE IIDIE MAXIMUM DIFFERENTIAL FItESStNtE B21-R623B AIS B21-R604 IIIDFWIATIVE NUCl2 Alt 321-NOSIC BROEEN SIGNAL (IEVEL) RAIX OF WATER LEVEL 2 MAIN STEAM Bo1LER AIID t LINE ISotATI001 IIIOPEltATIVE l 921-18081D l
3/4"-E-24-1502-2 "B" SIDE REIT.RENCE LEC INSTRINElff LINE 2 FACE 3 _ _ 0F 4 12-0285 (4)
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SWOIWWI C0f0 ION SENSOR FAIListE TASIX I TAGER FAR S FAII M TTFE I3 CEBOEM TAF (BROGN OR SECOWBART EFFECT CSSIMD EFW PLUGGED) FItINART EFFECT ST5151 ID SENSOR frL ij NOR INACCURATE DIFFEIWITIAL FIIESSUIE RAIE OF 1AATER 12 VEL 2 HAIN STEAH FIAGGED i: SIGNAL (12 VEL) LINE IS0!ATION INOPEllATIVE WINE mannum MAXINtWI DIFFEIElff1AL FItESSURE 321-Mie 12 VEL IMICA1UR M 321-50373 SIGNAL INOPERATIVE 30112R 321-Mle 12 VEL TWDICATION 90 5
' FIAGEED IIIACCURATE DIFFEMIITIAL FItESSUllE SIGNAL IIIACCURATE ItEADIlfG I
C61-LIT 007 IACAL 12 VEL IWICATOR 50E 321-50268 3R05E3B NAXIMINI DIFFE MIITIAL PRESSURE WWCl2AR IIIDFEllATIVE 30Il2R SIGNAL (12 VEL)
NOR IIIACCtmATE DIFFEftEIITIAL FItESSURE C61-LIT 0071ACAL 12 VEL INDICA 10R FIDGGED INACCUltATE ItEADIIIG SIGNAL (12 VEL) 50M MINIMtM PRESSUllE SIGNAL C32-M 09 RE8m era ERACTOR FEEBRAATER C32-II006 3ROKEN FItESSUltE FEN IMOFERATIVE WOM COIISTAirT PitESSUltE SIGilAL C32-M09 IEECORDER REACTOR FLUGGED FItESSUltE PEN AT CONSTAIET ltEADING l
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3/4"-E-24-1502-2 "R" SIDE REFT.RF.NCE IIG INSTRUPENT LINE 2 j FACE & OF 4 ~
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a, SNOREIIAM COI9t0N SENSOR FAILI5tE TADM Tast2 Fem 6 FAIL M TTFE
!, CINORNE TAP (BROU N OR CNRSIMD EFFRCT FRittART EFFECT SECONDART IFFECT 5T5T31 ID ENSOR IFL PLUGGED)
WTER 12 VEL 3 SCRAM REACTOR SCRAft pursama 321-8000C 330 518 MINIIRRI DIFFEREllTIAL FitESSURE BOIIER AND SIGNAL (12 VEL) 321-NoteD 50M FLUfMD INACCURATE DIFFEstElff!AL FItESSUllE MTElt LEVEL 3 CIIAINIEIR "A2" AID SIGNAL (12 VEL) "BA" IIIOPERATIVE REACTOR LOW MTER ST5TWI S IAff pm B21-59958 BROKEli MININIM DIFFERElff1AL FItESSURE SIGNAL (LEVEL) LIGIITS. ADS B IAlW IEVEL FENIISSITE (011ER FEltMISSIVES REQUIRED)
Ah8 3 MTER 12 VEL 3 FEIWIISSITE IAIST NOR FLUGGED IIIACCIMATE DIFFEltElrTIAL FItESSUltE SIGNAL (LEVEL)
C32-R606B MTEst 12 VEL IECORRER IIOR FEEgid4TER C32-II0045 BROWN MINIFIINI DIFFEstEllTIAL FitESSUltE INOPERATIVE; ItEACTolt FEEDWATER SIGNAL (LEVEL)
IIICREASED FIDW; % TURBIIIE TRIP GRAgenL INCMAN OR EBUCTICII FLUGGED DACCURATE DIFFYItENTIAL FetESSUltE C32-R606B MTER 12 VEL MCORNIt AT INACCUARTE READING; ItEACTolt FEED- IN IIEACTelt MTER I2 VEL SIGNAL (LEVEL)
, WATER EIUtOft IN LEVEL FOLLOWIIDG IllSTRtfENT LINE 3 3/4"-E-25-ISO 2-2 "B" SIDE VAltI ABLE LEG PAGE I 0F 2 I2-0285 (6)
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i SNORENAM CNSION SENSCR FAILURE TABI2
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!? TABI2 FAR 7
- , l' FAIIM TTM IXNeulu TAP (smosEII OR ST5TWO IB meena pyt PLUGGED) PRIMARY EFFECT SECONDARY EFFECT CINSIMD EFFBCT C32-Ile17 WOKEII MINININI DIFFERENTIAL FitBSSUltE C32-It600 M(XIRDER INOPERATIVE NUM i SIGIIAL (WIDE ItAIICE-UPSET REACTOR IIVEL)
PLUGCED INACCURATE DIFFEIElfTIAL PIESSUllE C32-9608 IECOMER AT IIIACCURATE NCE SIGNAL (WIDE RANGE-UPSET REACTOR WIDE RAIUCE-UPSET llEACTOR I2 VEL I2 VEL) SIGNAL 321-5027 BROIEN MINININI DIFFEIEllTIAL PRESSUltE 321-11605 IETER INOPEllATIVE NONE l
SIGNAL (IIEACTOR VESSEL LEVEL)
' IIOut PLUCCED IIIACCUltATE DIFFEllElfflAL PitESSUltE 321-11605 PETElt AT INACCUllATE
{j SIGNAL (ItEACTOR VESSEL LEVEL) ItEADING Ii t
INSTitt#ENT LINE 3 3/4"-E-24-1502-2 "B" SIDE VARIABLE PACE 2 0F _2_
12-0285 (7)
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! SNORENAM COPSION SENS0k FAILUllE TAtlJ,
{j TASIA N R 6 f
- i FAII M TTFE CEngEIN TAF (meners ca PRIMART EFFECT SECONRMT EFFECT C133333 EFFECT ST5TWI 19 **mann gyl, FLuccED)
B21-M13 MCOMR COM FIATE NOK em B21-NO32 WOREN NINIIDI DIFFEllEllTIAL FItESSUltE SIGNAL DIFFERENTIAL FitESSUltE STACK FEN BOII2R IMOFERATIVE IIIACCllRATE DIFFEltEllTIAL PRESSUltE B21-M13 MCOM CM FIATE NM PLUGIED SIGNAL DIFFEftElfflAL FIESSINIE BIACK FEII
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AT INACCURATE READilIG IthXIIDE DIFFEltElff1AL FIIES$UltE Cll-IISO9 IDCAL AIS CONMOL ROOM NOR CM Cll-IIDOS 30EEll Cil-R602 IETEIIS IIIDFERATIVE NTWRAULICS Cll-R009 IDCAL AND DIIffp0L ROOM NOR PLUDGED INACCURATE DIFFEltEllTIAL F9tESSUltE C:1-R602 IETEsts AT INACCtstATE READIIIC Cll-ROSS IACAL AIID Cll-3603 NOIE CII-IIoll BROKEN MAXIMIM DIFFEllElff1AL FItESSUltE COOLING WATER PETEstS III0FEftATIVE a IIONE l FLUGGED INACCUltATE DIFTERElff1AL FitESSUltE Cll-It005 LOCAL Als C11-II603 COOLIIIC WATER IETER AT IMACCURATE l ItEADING MAXIPIUM DIFTEltENTIAL PRESSUltE SYSTEM I NICII DIFFERENTIAL NM CORE SPRAY E21-N006A DIt0EEN SIGNAL PRESSUltE SFRAY HEADER TO TOP OF ColtE FIATE ANNUNCI ATION I II0 LIE NONE FLUGGED INACCUltATE DIFFERENTIAL PRESSUltE i
< SIGNAL l
i IIISTRUPENT LINE 4 3/4"-E-55-1502-2 FRESSUltE ADOVF. CORE PLATE PAGE 1 OF 2 12-0205 (8)
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!i SWORENAM CONION SENSOR FAlt.tstE TABIA i
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I FAIIM TTR CINENIN TAP ( m 8OR CENSIM EFRCT ST5TWI 19 SENSOR IFL PtUGGED) FRIMARY EFFECT SECEMIARY EFFECT BROUN MAXIMilM DIFFEftENTIAL FitESSUltE SYSTEN 2 NICII DIFFEMNTIAL NONE E21-II0045 SIGIIAL PIIESSURE SPitAT IEADER TO TOP OF ColtE PLATE AlflIUllCIATIoll FLUGGED INACCW ATE DIFFERENTIAL PRESSURE NONE NOR SIGIIAL e
IIISTIttNElfT LIIIE 4 3/4"-K-55-1502-2 PRF.SSimE ADOVE CORE PLATE PAGE 2 0F 2 12-0205 (9)
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i i SNOREIWI COIMON SENSOR FAILURE TABIA 1
TAsu Fem i. ,
f 1 1 6 FAllANE TTFE ,
CWERIN TAP (BROKEN OR FIllitART EF NCT SECONDARY EFFECT COMIN D EFFECT j
- WTETEII IS SENSOR IWL PLUGGED)
!< M1W VESSEL PRESSWE SCRAft TRIP NONE
, IIUCl2AR 321-Ne78A EROEIN llINIMUll FIESSUltE SICIIAL t BOII2R Am FOR CIIAIINELS "Al" AIID "Bl"
{ DISABI2D; "A2" AIID "B2" BACEUP
' 321-180708 AVAllAtl2 t
CONSTAllT PRESSUIE SIGIIAL R15 VESSEL FM SCRAll TIIIP IION PLUDGED FOR CRAIINELS "Al" AIS "Bl" DISAB12D; "A2" AIID "B2" BACMP AVAllAB12 ,
IIONE - E12CTRICALLY DISABIRD NOR B21-IIB 20A W10EEli CIVES ISIV CIAISWlE STPASS SICIIAL Ale TO SCitAft TRIP IDGIC (An AIID Bs) 321-90208 - OltLY IN SNUTDOWII, ItEFUELING AlfD STAltTUP PIODE IIONE - EI2CTRICALLY DISABIED IIONE PLUCCED NEACTOR WICII PRESSUltE TRIP OF IISIV CIASURE SCitAM BYPASS 15 t . IIIOPEltATIVE t
RIEL IAlW FRESSUIE PEWilSSIVE SYSTWt IION j 321-NO97A bit 0EEN MINIMtM FItESSilltE SIGNAL A AIID SYSTEM B; ATUS AIID RPT A&a A15 llIGII FIIESSUltE TitIP DISABI2D; % ItECIRC B21-18097B DISCMARGE VALVE CIDSUltE PEIGtISSIVE IBOIE PLUCCED CONSTANT PItESSUltE SIGIIAL % RM IAW PIIESSWlE SYSTDI A Ale SYSTEM B TRIP IIIOPERATIVE; ATwS AIID RPT A AND 3 FIIESSUltt TRIP DISABI2D; IDSS OF % RECIRC DISCHAltGE VALVE CthSURE PERMISSIVE.
3/4"-E-28-1502-2 "A" SIDE REftRENCE LEG IIISTRt#EllT LINE _5_
PAGE l 0F 5 12-0285 (10) 1
i
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SNOREIIAM COISION SENSOR FAILURE TABLE i
I TABES PAR II i
I 5 FAIIM TTFE CEBERl5 TAP (maner* OR
'. STRIBI IS BENSCR IFL PLUGGED) PRIIIARY EFFECT SECONDARY EFFECT CENSIMS EFFECT
' maan 321-NB00A mannes H4XIMINE DIFFEllENTIAL FIIESSURE ilATER LEVEL 3 TRIP CRANELS "AI' NON i
BOII2p AIS SIGNAL (LEVEL) AND "BI" INOFERATIVE: "A2" AND B21-110005 "B2" BACEUF AVAIIABI2 PLUGGED IIIACCURATE DIFFEltEIITIAL FItESSURE WTER 12 VEL 3 TRIP MLB "AI" M SIGNAL (12 VEL) AIID "Bl" IIIOFEllATIVE; "A2" AIID i "B2" BACEUF AVAIIABIA 321-509S4 MWEN HAXIIRNE DIFFERENTIAL PRESSURE ADS (A) tlATER 12 VEL 3 PENIISSIVE M SIGIIAL (I2 VEL) IAST.
PLUCCED IIIACCUllATE DIFFEltENTIAL FIIESSUltE ADS (A) ifATER IRVEL 3 FElWIISSIVE IION SIGNAL IAST.
FEEB MTER C32-II00AA BROEEN HAXIIIUM DIFFEltEIITIAL FItESSUltE C32-It606A IIATElt 12 VEL an- C32-980AA Alm C FAIIM EIW, MIN SIGNAI. (I2 VEL) IMOFERATIVE; ItEACTUR FEEDtIATER AIID FEEBETER TWtBIIIE TRIP DIE TO DECitEASED FIAW; % MAIN AIID IIIGH SEIISED 12 VEL BY A AIID C FEEDWATER TUltBINE TRIP ON MIGII INSTRtNENTS, FEEDifATER FIAW IAST.
tfATER LEVEL.
PLUGGED INACCUllATE DIFFEltENTIAL FItESSUltE C32-R606A WATER LEVEL llEt = 88 AT CRABEL INCMAst OR REDUCTICII Ik SIGNAL (12 VEL) IllACCURATE READIIIG; ItEACTOR TEED- ItEACTOR 1AATER I2 VEL WATER ERRolt IN LEVEL FOLIAWIIIG IIISTRUDENT LIIIE 5 3/A"-E-28-1502-2 "A" SIDE ItEFERENCE 12G PAGE 2 0F 5 12-0285 (II)
- s
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4
,I i! SNoltEllAM CorWION SENSOR FAILURE TABLE j j.
,l TRMA PAM 12 a
j; i' CtNSEN TAF FAII M n rr.
(BROREN OR PRIMAftY EFFEg SECONDARY EFFECT EXNSIMB EFFECT
'8 ST5TEH 19 nemens IN'L FIAIGGED)
I BROKEN MAXIMIM DIFFEltFJTIAL FItESSUltE C32-R606C MTER 12 VEL MCOMER SEE C23-We06A C32-N006C SIGNAL (LEVEL) INOFERATIVE; % MAIN TURBIM AND FEEDWATER TRIP ON RIGN tlATER I
2 IIVEL C32-R606C MTER 12 VEL IEECORRR AT NUM FLUGMD INACCUltATE DIF?rr.IIEllTIAL FitESSINtt SIGNAL (12 VEL) INACCURATE ItEADING.
4 Mt0 Mil MINifRM FItESSUltE SIGNAL C32-It605 MACTOR EIGil FIESSUllE NOM C32-5005 ItECORDER IMOFERATIVE FLUGGED CONSTAlif FilESSUllE SIGNAL C32-R605 IIBACTOR Elm FRESSEEtt NOM l ItECORDER AT CONSTANT MADING 12 VEL /PRESSIME MColtDER 321-R623A, NONE NUCLEAR 321-IIO55A BROMN MIN!!RM PRESSINtE SIGIIAL 30 LIER 12 VEL /PItESSUltE IETERS 21-L1004 AND B21-F1004 INOFEllATIVE;
' ItEcoltDER AT NIGN SPEED PLUGGED CONSTAllT FItESSUltE SICIIAL 12 VEL /PItESStNIE MCOMER 321-R623A, NOM 12 VEL / PRESSURE PETERS B2I-L1004 AND B21-Fl004 AT CONSTANT ItEADIIIC MAXIMUM DIFFEltENTIAL FitESSUltE CORE SPRAY SYSTEM A INITIATION WIN NUC12AR 321-N991A SIlOREN SIGNAL (12 VEL) IIIDFERATIVE; Itigt STSTEM A INITIA-Rolt2R AND T1018 IIIOFERATIVE; ATWS-Alt! STSTEM A 321-N091C INITIATION IIIOFERATIVE; ATWS-RFT SYSTEM A INITIATION IIIOFERATIVE;
% RCIC/MFCI TURRIIIE TRIP SIGNAL.
INSTItUPENT LINE 5 3/4"-E-28-1502-2 "A" SIDE REFERENCE LEG PAGE 3 OF _5_
12-0285 (12)
J f
If It i) lI SNORENAM COPOION SE550R FAILURE TABIA f TAM A FA S 13 I
3 FAllmE TTR COBBIE TAP (anners OR RCOMMY EFFECT IXBBIM B EFFECT
- i. PRIMARY EFFECT STRIBI IS armana lyL PLuoGED)
NI M 4
IIIACCURATE DIFTEllENTIAL FitES$111tE CO M SFRAY SYSTEM A 151TIATilE FLUDGED IN0FEstATIVE; IUR 513198 A IIIITIA-il SIGNAL (LEVEL) T1011 IIIDFERATIVE; ATWB-ARI SYSTElf A ll
- ! IIIITIATION IIIOFERATIVE; A1WW-RPT
!; SYSTDI A INITIATION IIIDFERATIVE; l ', RCIC TultBIIIE STUF IIIDFERATIVE;
} itPCI INJECTION SIIUIDFF IIIOFEllATIVE.
I IION i>
HAXINtNI DIFFERElfflAL FitESSUltE B21-R23A RECORIER IMOFERATIVE 321-IIsetA annerW
, SIGNAL (I2 VEL) IIALF OF WATER 12 VEL 2 IIAIN STENI AIID LIIIE IS0lAT1015 IIBOFEltATIVE l
321-180813 4
NOR i MAIX OF HATER 12TEL 2 NAIN ETEAM
' FLUGGED IIIACCURATE DIFFEREIITIAL FilESSUltE SIGNAL (I2 VEL) LIIIE ISOIATICII INOFERATIVE
- IIONE i
MINIMLNI FitESSisit SIGIIAL C61-30ll FIIESSIEE IIIDICA10It
! MIEFFE C61-II006 EIIDElf IIIOFERATIVE SNUTD0tf1I NOR C61-Roll FitESSUllE INDICATUIt AT FLUGCED CONSTAllT FitESStIItE SIGNAL CONSTAAT ItEADIIIG
! C61-It0lc I2 VEL filDICAfolt M
321-59268 bit 0EEN MAXIntNI DIFFEltElrTIAL FitfSSUltE IIUCl2 Alt IIIOFERATIVE SIGNAL (LEVEL)
BOIIER HONE C61-R010 LEVEL INDICATOR AT FLUGGED INACCUltATE DIFFEREWflAL FitESSUltE INACCUllATE READING l SIGNAL (IEVEL) i 4
3/4"-K-28-1502-2 "A" SIDE REFERENCE LEG INSTRUIENT LINE 5 PAGE 4 OF _5_
12-0285 (13)
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ll SNOItERAM C0f910N SENSOR FAILtBE TABIA
'. FLUGGED) FRIfIARY EFFECT
. I, ST5TWI IS SENSOR OWL pem EnnNWM 914ElfRM DIFFEltENTIAL FItESSUltE B21-M15 REACTOR MTElt 12 VEL 321-WO37A IIRCneWE IMOFEllATIVE
- SIGNAL (LEVEL) j'
, B21-M15 MACTOR MTER 12TEL M
PLUGCED IRACCtmATE DIFFMENTIAL PRESSINEE IIEColtDER AT INACCURATE ItEADING SIGNAL (IEVEL) 4 3/4"-E-28-1502-2 "A" SIDE REFERENCE LEG INSTRtNENT LINE 5 FACE 5 0F 5 12-0285 (14)
SNORElWI C01910N SENSOR FAILURE TABLE TABIA PAGE 15 FMLENE TTFE
. CtNOEM MP . -( NOREN OR SYSTWI ID emna lyL PLUGGED) PRIMARY EFFECT SECOMARY EFFECT CBSIMD EFFECT l IIUCLEAR B21-N000A McEEN MINIfRM DIFFEllElff!AL PMSSURE ETFR 12 VEL 3 SCRAM REAC1OR SCAAM i BOIIER AM SIGIIAL (12 VEL) 321-110008 PLUGGED IIIACCullATE DIFFEREllTIAL FitES$15tE MTER 12 VEL 3 TRIP OIAIRELS "Al" NM
! SIGIIAL (12 VEL) AND "Bl" IIIOPEllATIM q B21-IIO95A BROEIll MINIMIDI DIFFEllENTIAL FitES$UltE REAC~f0R 18tf MTER SYSTEM A IAff EM i SIGIIAL (LEVEL) LICIITS. ADS IAW MTER 12 VEL 3
- I PEllMISSIVE (UTIER PEIWIISSIVES I
REQUlltED)
PLUGGED IIIACCWIATE DIFFEllEltTIAL PRESSUltE ADE LOW MTER 12 VEL 3 PEMISSIVE NOM
?j; SIGNAL (12 VEL) IAST
, C32-IIS044 BROMN MINIMUlf DIFFEltENTIAL PRE 55UllE C32-R606A MTER 12 VEL REIXIMER C32-N0044 Am C MMEB, WILL CAM SIGNAL (12 VEL) IIIOPERATIVE; ItEAC10R FEEINATER FIEBWATER 10 FILL VESSEL PAST 12 IIICKEASED FIDW,1455 0F TUltSIM TRIP, F1000 STEAIE.INES. TIESIM TRIP IACIC. TRIP IAGIC 188T OII NIER MTElt 12 VEL. TIRBIM TRIP Oil RIGN VIIIIATICII.
PLUGGED INACCMATE DIFTEREllTIAL FitESSURE C32-R606A WTER 12 VEL RECCIIDER AT GRABUAL IIICMASE M MBUCTICII SIGNAL (I2 VEL) INACCURATE READING; itEACTolt FEED- IN REACTOR MTER 12 VEL.
MTER Erit 0R IN IIVEL FOLIAWIIIG C32-IIOS4C EROKEN MINIMIM DIFFEltENTIAL PItESSURE C32-It606C WTER 12 VEL IIECCIIDER SM C32-II004A SIGNAL (12 VEL) IIIOPEltATIVE; LOSS OF TURBINE TRIP IAGIC.
-t IIISTRIBElif LIM 6 3/4"-E-29-1502-2 "A" SIDE VAltIABLE IIG PAGE I 0F 2 12-0285 (15) i l
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FAILM E TTR CEIGION TAP (SROU N OR FRIMARY EFFECT SECCIEMRT EFFECT CINSIMD EFFECT STSTElf 19 MIISORIWL PLUGGED)
- } FMICSED IIIACCUIIATE DIFFERENTIAL FitESSUltE C32-R606C IIATER IAVEL N AT IION SIGIIAL (12 VEL) IIIACCUltATE ItEADIIIC; IA55 0F TUlttim TRIP IAGIC.
MOMN MINIIRNE PRESSEME SIGIIAL 1AW FM SS W FENilSSIVE W O MEGA M NM MIV-ICS E32-WW54 MSIV IAAEACE COIITROL SYSTEM AIID I
MTER E32-II658 OFFJtATIVE C011STANT PRESSME SIGIIAL 00fBOAM MIV IAAEAM CGfft0L NON PLUGGED STS1TM IIIOFERATIVE AIS ETER E32-R658 AT CONSTAIIT ltEADilIC IIISTRUPEltf LINE 6 3/4"-K-29-1502-2 "A" SIDE VARIARLE LEG PAGE 2 0F 2 12-0285 (16)
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FAIL M TTFE
. CINOION TAP (BNOIEN OR i! - prL FRIMAltY EFFECT SECONDAltT IFFECT COUBIE S EFFECT STWIGI IB PLUGCED)
I FEIp4ATER BBCM AN D FIAlf
!! FEEBMTER C32-N003A ENOIEN MINifftBI DIFFEstENTIAL FItESSUltE REACTest FEEDWATEst DECIIEASED FIAW
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- i SIGilAL (FLOW) i PLUGIED INACC1 RATE DIFFERENTIAL FitESSUltE REACTOR FEIB MTER ERNOR IN STEAM Ntm SIGNAL (FIAW) FIAW FOLIAWING 1- IIONE jj NUCIAAR 321-N006A MIOEER MINININE DIFFEltENTIAL FItESSUltE SIGNAL (FIAW)
MAIN STEAM ISOEATICII TALTES CIASUIts CHAINItts Asa llIDFEltATIVE;
, 30lI2It AIID m21-N006s SACKED UF af CluulNELS C&D j
INACCUllATE DIFFEltENTIAL FitESSUltE MAIN STEAM ISOCATICII VALMS NONE FLUGCED SIGNAL (FIAW) CIASUltE CMAINIELS A&B INOFEllATIVE; j
BACKED UP BT CMAINIELS C&D
- j .
r INSTRUPENT LINE 7 3/4"-K-t-1502-2 3/4"-K-101-1502-2 FAGE I 0F l MAIN STEAM LINE FIAW INSTRUMENTATION LINES 12-0285 (17)
SNOREIIAM COPSION SENSOR FAILUIE TABI2 TABt2 FAE 10 Fall m TTFE
!- CEISION TAF (annews 05 ST5fMI IB SENs05 IWL PLUGGED) FRIIIARY EFFECT SECO RARY EFFECT CS SI M EFFECT FREglIATER C32-IIce34 Em0EEli H4XIIIUM DIFFEltENTIAL FilESSURE ItEACTUlt FEEDWATUt IIINaern Flatt FERIRETElt INCISAN D FISIf (Flatt)
' WOIR FLOOCED IIIACClmATE DIFFEltENTIAL FIESSUltE REACTOR FIEDWATDt ERROR IN STEAN (FIDW) Flati FOLIAWING 1 ,
IIWCLEAR B21-We86A manews MAXIMIDI DIFFEllElff!AL FIRSSUltE HAIN STEAM IS0tATION TALVES HAIN STEAll IsotATICII TALVES BOII22 AND (FInti) CIASURE CLASUIRE B21-110065 FLUGGED IIIACCIMATE DIFFEllEllTIAL FItESSUltE MAIN STEAM IsotATION VALVES NOR (FIAti) CLOSUllE CIIAINIELS A&B IIIOFEAATIVE; BACEED UP BT CMAIINELS C&D l
l INSTRUPENT LINE 8 3/4"-R-2-1502-2 3/4"-E-102-1502-2 FACE I 0F I HAIN STF. API LINE FLOW INSTRUMF.NTATION LINES 12-0285 (18)
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]f I TAK E FA S 19
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! Fall m surm ii CINERE TAP ( NOREN OR M Weon Ig'L RIMARY EFRCT SEC0154RT EFFECT CIBBIM D EFFECT
!l STE M IS PLUGGED)
FEEgtmTER BROKEII MINIMUM DIFRREllTIAL FitESSultE REACTOR FEEDWATER DEranam FIntf yggBIIATER MCMAGES FISIf C32-IIe03B
,f .
SIGIIAL (Flaw)
- ' FLUGGED IIIACCUltAM DIFFutEllTIAL FitESSUltE IIBACTOR FSDIIATElt IIGIOR IN STEAll Nilm
.. SIGIIAL (FIDW) FIAW FOLLOWIIIG 1
WWCIEAR 321-3007A MIORE3I MINIfRM DIFFutERIAL FitESSUltE IIAIN STEAfl ISOIATION VALVES IIDE BOIIER ABID SIGNAL (FIDW) CIDSWtE CRAIINEIA AEB III0FutATIVE; 321-5007s BACKED UF sf CnANNELS CsD FLUGGED IIIACCURATE DIFFEREIITIAL FitESSUltE MAIII STEAff IS01ATION VALVES BOM SIGNAL (FLOW) CIDSUltE CMANNELS A&B III0FutATIVE; BACED UF BY CNAIIIIELS C&D t
e INSTRUMENT LINE 9 3/4"-E-5-1502-2 3/4"-E-105-1502-2 PAGE I 0F 1 MAIN STEAM LINE FLOW INSTRUMENTATION LINES 12-0285 (19)
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REACTOR FEEDWATER IN m a m yggle yEEgIAATER INCMAMD FIAltf FEEsimTER C32-II0039 INIOKElf MAXIMINI DIFFEltENTIAL FItESSUllE (FIAW)
PLUGGED INACCtNtATE DIFFERENTIAL FRESSINtE NEACTOR FEEDWATER EISOR IN STEAff NOR (FIDf) FIAW FOLIANIIIC 1;
MAIN STEAM ISOIATICII VALVES IIAIN STRAll ISOIATIW VALVES M 321-N007A MORElf MAXIMtM DIFFENENTIAL FItESSURE CIAsclts B0llAR AIID (FImi) CLoStstE i B21-N0078 I FLUGGED IIIACCUltATE DIFFEltENTIAL FitESSultE MAIN STIAff IS0tATIN VALVES NOR (FLOW)
CIASUltE CNAlnIELS AES IIIOPERATIVE; I
BACKED UP BY CMAIINELS C&D l
i INSimuriENT LiNE _to_ 3/4"-a-6-is02-2 3/4 -u-106-1502-2 FACE _l_ 0F l MAIN STEAM LINE FIDW INSTRUFF.NTATiON LINES12-028s (20)
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., FAIL M TT R CIBEEN TAP (ann e OR SWW 13 emanna gyL yLUGGED) PRIMARY EF RCT 3W M ham? IFFECT WIED EFRCT 1 FEEptmTha C32-N003C 380 5 18 MINIMINI DIFFEstElfflAL FitESSUltE REACTOR FEEDWATER BEr****** FIAtt FEE 5WRTER BEIMAMB FIAlf
, SIGIIAL (FLOW)
L PLUDIED IIIACCURATE DIFFEllElff!AL FitESSUltE REACTOR FEEstIATER ERROR IN STRAft IllM SICIIAL (FIAW) FIDW FOLIAWIIIG WWCIEAR 321-ROSSA man e MINIMUN DIFFEltElfflAL FitESSURE MAIN STRAM ISOIATICII VALTES 1101E BOIIIst Als SIGNAL (FIAW) CIASURE CIIAIINELS A&B IMOFERATIW; 321-110008 BACEED UP BY CMAIINELS C&D PLUGGED INACCIRATE DIFFEllENTIAL FItESStNtE MAIN STEAM ISOIATICII VALTES IIOR SIGNAL (FIAW) CIASUltE CMAinIELS A&R IMOPERATIVEg BACKED UP BY CNAlnIELS CSD I
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MINIntNg stFFEREgrflAL PRESSUltE IIEAC10R FEEDWATER MCitEASED FTAlf FEEBMATER MCMAND FImtf 4
FEE 3tIATER C32-3003g menes SIGNAL (Fisti)
REACTOR FEEBMTER IMOR IN STEAM M PLDOCED INACCIRATE DIFFEREIITIAL FRESSUltE SIGNAL (FIDW) Flatt FOLLOWIIIG MAIN STEAft 190tATIN VALVES WINE WK12AR 321-3009A M0GII MilllMINI DIFFMENTIAL PRESStstE SIGNAL (FLOW) CIDSUllE CIIAIINELS A&B IMOPERATIVEI 80ll2R AND BACitED UP BY CIIAIINLLS C&D B21-100099 IIONE PLUGGED INACCUllATE DIFFEltENTIAL FItESSUltE MAIN STEAlt ISOLATION VALVES ClaSUltE C11AIIIIELS AES IIIOFERATIVE; SIGNAL (FIDW)
SACKED UP BY CNAIINELS C&D INSTRUPENT LINE _l3_ 3/4"-E-13-1502-2 3/4"-E-Il3-1502-2 FACE 1 0F l MAIN STF.AM LINE FIDW INSTRtIMF.NTATION LINES 12-0285 (23)
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C32-IIs030 =m8 MAXIIMI DIFFEllElff1AL FitESSUltE ItEACTOR FEEDWATER Igrenaarn FIAM FEEBIm1ER IUCEAMS FIAtt FEEBuhTER (TLOW) l
! FLUDIED INACCIMATE DIFFERElff!AL PRESSUltE MACTW FEE 5tE1ER EBOR IN STRAll M (FIAW) FIAW FOLIANIIBG NUCIRAR 321-WO99A BROEEll IIAIllIISI DIFFERElfTlAL FItESSUltE MAIN STEAft ISOIATICII VALVES IIAIN STEAff ISOLATICII VALVES AIID (FIAM) CIASUllE CIASINE BOIIER 321-N0099 FLU 0CED IMACCullATE DIFFEltElff1AL FitESSURE MAIN STEAll IS0lATICII VALVES IIDE (FIAW) CIASUllE CNAIINELS A&S INOFERATIVEg BACKED UP ST CMAIINELS CED 1;
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SWORENAM COMON SENSOR FAILINtE TAB 12 l.*
l TASIA P M 29 ,
(*t . ,
?t FAILUIE surm GNSEN TAP (MOMN OR PRIMARY E M CT SECONDARY EFFECT CW SlhV 3FFECF ST5fEH IS E NSOR OW'L PLUGGED) _
2ND Polltf M ATER BRAIN VALVES 1485 0F 2 W POIM TEEguhTER ISIS 1M IN35-LS112A REFERENCE A MEAE IN ANY RFEllENCE 12G ON 12G bit 0RN T M STAlmPIPE WILL CAUSE A DROP IN (IN35-LCV02AN, LCV02All) WILL FULLT MATIIIG WILL MSNLY IN A SLIET
, EEPARATOR IN35-L302A STANDPIPE PRES 8UltE. THIS WILL OPEN. DWOP IN FEEDIALTER TLMPERATENE.
1 MMATER IN35-LT02Al A m M ATER IN35-LT02A2 CAUSE ALL INSTitLN!NTS TO MAINS INACCINIATELY IIIDICATE A MIGNER 215 Polltf MATER EITRACTICII STEAM TIUUI ACTUAL LEVEL. ISOLATION VALVE (IN35-MDV032A) WILL CLOSE.
i IIEFEMNCE 7515 WILL CAUSE M SWITCII TO SEE A CONSTAlff PRES $tNIE IN M REFElt- M EMDR CUula CAM RITER A 12C PLUGGED A CONSTAlff PltESSINtE AT TE ENCE 12G WILL CAUSE IIIACCUltACIES FAIJE NIGN OR FALSE IAlf SIGIIAL. i l Ill TIE OPEllATION OF 211D P0lllT TNIS WOUta M SULT IN A BRDP IN j ItEFEREIICE 12G, CAUSillC INACCUltATE .
OPERATICII 0F TR SWITCM. RATElt DItAIN VALVES (III35-LCV02AN, FEEDtIATER TFMEllATUllE A11D/0R A l LCV02All, AND 2IID POINT IEATER TUltBlK TRIF.
EXTitACTIoll VALVE (IN36-NOV032A).
IIDWEVER, TE INACCUltACT IS ItEIATIVE f 70 TK ItATIO OF FitESSUllE IN TIE i
}.
TAIIE VERSUS TE PitESSUltE IN REf11tERICE 12G. TNIS ItEIATIONSWIP j' CAN pit 0 VIDE EITER AN Erit 0R WIIICII
]
WILL CAUSE A SIGIIAL THAT IS NIGNER i
i OR IDWER TIUUI TE ACTUAL LEVEL.
4 i
i NUTE:
"A" SIDE INSTRWEllTS LISTED
! "B" SIDE SIMllAlt i
I
! INSTRUMENT u K 19 2ND PolNT FEEDWATER EATER LEVEL INSTRUMENTATION
! PAGE I 0F l
! 12-0285 (29)
1 l
i I SMORENAM CO M ON SENSOR FAILURE TAB 12 TABIA PA E 30 FAllM airr.
. 00fGENI TAP (BROE N OR ST5TWI 19 emmens Ig'L PLUGGED) PRIMARY EFFECT SECONDARY EFFECT CENSIM B EPPECT HDIST M IN35-LSl92A VARIABI2 WIEl M 12 VEL IS ABOVE T M 3ROKEN 2ND POINT NEATER DRAIN VALVES M ETER 12 VEL IN M EctW SEPARA1DR 12G BROKEN LIlft. T E BREAR WILL CAUSE T E (IN35-LCV02AN, ICV 02AN) WILL FULLY M ATER WILL RI E. TEIS WILL M EATER OfEt IETR STANDPIPE TO E AT A 14NER LEVEL CIDSE. ItESULT IN A BROP IN FERENTER Als EAM ON STANDPIPE TIIAN TE EATER. THIS WILL CAUSE TEMPERATURE AND/OR A TURBIIIE TRIP.
aRAINS IN35-1302A ALL TE INSTRINEENTS ON T E STAND-IN35-LT02Al PIPE TO INACCURATELY INDICATE A IN35-LT02A2 IAMER LEVEL. WIEEN M IIVEL IS E!DW TE BROEN LINE, TK INSTRU-E NTS WILL ItEACT AS IN A bit 0 KEN REFEltENCE 12G (SEE LINE 17).
VARIABIX THIS WILL CAUSE TE WITCN TO SE A CONSTAllT PRESSEE IN TE VARI- T E E BOR COWla CA M RI1 E R A I2G PLUGGED A CONSTAlff PitESSURE AT TE ASIX LEG WILL CAUSE IIIACCUllACIES FALSE NIGN OR FALSE IAW 12 VEL VARIABLE 12G, CAUSING INACCURATE Ill TE OPEltATION OF 2ND POINT SIGNAL. THIS WOUta IIESULT IN A OPERATI0lt OF THE SWITCN. NEATER DRAIN VALVES (IN35-LCV02All, DROP IN FEEDWTER TEMPEllATURE LCV02AN) AND 211D POINT MEATER AND/OR A TUltBINE TRIP.
EXTitACTI0li VALVE (IN36-NOV032A).
IIOWEVER, TE IIIACCURACT IS ItE!ATIVE TO TE RATIO OF PRESSUltE IN TE TAIIK VF.RSUS THE PRESSUltE IN REfillENCE LEG. TNIS RELATIONSRIP CAN PROVIDE EITER All Erit 01t WIIICM WILL CAUSE A SIGNAL TNAT IS NIGER OR LOWER TNAN THE ACTUAL 12 VEL.
I_IOTE: TitAIN "A" Ills 11tUENTS LISTED TitAIN "B" SIMILAR INSTRUENT LINE 20 2ND POINT FEEDWATER NEATER LEVEL INSTRUMENTATION PACE I 0F_{-
12-02s5 (30)
SNORERAM C0fRION SENSOR FAILINtE TAB 12
} TAERE FAM 31 _
I -
FAIIJNE s uru GMEM TAP ( MOREN OR GESI M IPPRCT PRIMARY EFFECT SECONARY EFFECT ST5TWI 19 SENSOR frL PLUGGED)
MFEMIICE A MEAE IN ANY REFEllENCE 12C ON 3RD POINT MATER INIAIN VALVES 1a58 0F M 70lWTFREBM W ISISTM IN35-151034 (IN35-LCV03AN, LCV03All) WILL FULLY IRATING WILL ESULT IN A SLi m SEPAMNR IN35-L303A IEG BRO M TIE STANDPIPE WILL CAUSE A DROP IN OPEN. DROP IN FEEDMATER TEITERAT M E.
MMATER IN35-L193Al STA MPIPE PitESSURE. TNIS WILL AND MATER IN35-LT03A2 CAUSE ALL INSTittNENTS TO IIIACCURATELY INDICATE A MIGNER 318 PolNT MATER EXTRACTICII STEAM BRAlWS TIUWI ACTUAL 12 VEL. ISotATION VALVE (IN36-NOVO 33A) WILL CIASE.
TNIS WILL CAUSE TM SWITCH TO SEE A CONSTANT PMSSM IN TE MFER- T M E MER COM B CA M RITE R A REFERENCE EIICE 12G WILL CAUSE Ill4CCURACIES FALSE RICE OR FALSE I4W SIGIIAL.
12G PLUGGED A CONSTANT FitESSUltE AT TIE REFEltElICE 120 CAUSIIIG INACCURATE IN TM OPEltATICII 0F 31tD POINT THIS WOUla MSULT IN A MOP III IEATER DRAIN VALVES (IN35-IIV03AR, FEDNATER TEMPERAftNE AIID/OR A OPERATION OF THE SWITCN.
LCV03AN, AND 3IID POINT IEATER TURSIIIE TRIP.
EXTRACT 101I VALVE (IN36-NDV033A).
NOWEVER, TIE INACCINtACT IS ItEIATIVE ,
TO THE RATIO OF PRESSURE IN TIE TAIIE VERSUS TIE FitESSUllE IN ItEFEIIF.IICE IZG. TNIS REIATIOMIP CAN Pit 0 VIDE EITER All Eltitolt WIIICE WILL CAUSE A SIGIIAL TIIAT IS NIGER OR IAWER TIIAN TIIE ACTUAL LEVEL.
NOTE:
~
"A" SIDE IIISTIMENTS LISTED "B" SIDE SINILAR INSTIMENT LINE 21 3RD P0lNT FYEDWATER NEATER LEVEL INSTRUNENTATION PAGE I 0F i 12-0285 (31)
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'! TABIA PAIE 36 i
FAIIM a u rn CEIERIE TAP (manrru OR SECONDARY EFFECT CENSI M EFNCT SEIISOR W L PLUGGED) PRIMARY EFFECT ST5TRII IS 47N POINT MATER IIRAIN VALVES M MTER 12 VEL IN M FUEN ISIST M IN35-LSl944 VARIAB12 MN TIE 12 VEL IS ABOVE TIE BROEN M ATER WILL RIE . TNIS WILL LilE , T E BREAK WILL CAUSE T E (IN35-LCV04AN, LCV04All) WILL PULLY i SEPARA1UR 12G BROEN IIESULT IN A BROF IN PEEEETEk STANDPIPE 10 E AT A IMER LEVEL CLOSE.
j E EATER OVER INSTR TDIPEllATURE AND/OR A TUltBINE TRIP.
i AIR EATER ON STANDPIPE TNAN T E M ATER. THIS WILL CAUSE IN35-LSO4A ALL TIIE INSTRUIENTS 018 THE STAND-
! DRAINS
,I IN35-LT04A1 PIPE TO INACCURATELY INDICATE A
' IN35-LT04A2 IMER 12 VEL. WIEN TE LEVEL IS EIDW TE BROKEN LINE. TE INSTRU-j MENTS WILL ItEACT AS IN A bit 0 KEN 1
REFEltENCE LEG (SEE LIE 17).
A CONSTAlif FIRSSURE IN TIE VARI- TE IIROR COWIS CAREE EITER A VARIABIZ THIS WILL CAUSE TIE SWITCil TO SEE FALSE NIE OR FALSE ISW IAVEL A CONSTAirf PRESSUltE AT T E ASIZ IEG WILL CAUSE INACCUllACIPS LEG PLUGGED SIGNAL. TEIS WOUla ESULT IN A VARIABLE 12G, CAUSING INACCtNtATE IN T E OPERATION OF 4TM PolNT EATER DitAIN VALVES (IN35-LCV04All, DROP IN PEEstAATER TEIWERATWE i
OPERATION OF THE SWITCN.
, LCV04All) AND 4TN POINT EATER AND/OR A TURBI E TRIP.
]t EXTRACTION VALVE (IN36-MOV034A).
N0 WEVER, TE IIIACCURACT IS IIEIATIVE TO TE RATIO OF FitESSUllE IN THE j
TAIIK VERSUS T E PRESSURE IN REFERENCE IAC. THIS ItEIATIONSIllP j CAN Pit 0 VIDE EITER All Eltit0R WIIICH WILL CAUSE A SIGNAL THAT IS NIGNER OR IDWER TRAM TME ACTUAL LEVEL.
l g: TitAIN "A" litSTRUENTS LISTED TRAIN "B" SIMILAR l
\
INSTRINENT LINE 24 6TM POINT FEEDWATER HEATER LEVEL INSTRUMENTATION PAGE I 0F l 12-0285 (34)
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.I jl SHORUWI C01910N SENSOR FAILURE TABLE TABIZ PAR 35
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FAILINE a vra COISENI TAP (EnolEN OR CERWI M EFFECT SECONDARY EF RCT
- SEPARATOR IN35-L905A 11G BROKEN TE STANDPIPE WILL CAUSE A DROP Ill STANDPIPE FilESSURE. THIS WILL OPEN. DNOP IN PEEDImTER TWEEllATM.
! MEATER IN35-LT05Al I A15 IEATER IN35-LT05A2 CAUSE ALL INSTRUMENTS TO BRAllIS IllACCURATELY INDICATE A MIGIIER STR Polll? IEATER EITRACTION STEAN TMAN ACTUAL 12 VEL. IS01ATI0ll VALVE (INM-IIOV035A) WILL i,
CIDSE.
11 M E MOR C05t3 CA M RIT Elt A IEPEllEIICE tills WILL CAUSE M SWITCM TO SEE A CONSTAIIT FitESSWE IN M MFER-i A CollSTAlfr PitESSURE AT TE EIICE 12G WILL CAUSE INACCUltACIES FALSE NIGIl OR FALSE Ialf SIGNAL.
- l. LEG PLUGGED REFEREllCE 12G, CAUSING INACCURATE IN TE OPERAT10110F STil Pollrr THIS WOUla RESULT IN A Im0F IN
,,g LCV05All, AllD 5711 PolllT IEATER TUlttillE TRIP.
EXTRACT 10ll VALVE (IN %-MOV035A).
Ii IIDWEVER TIE IIIACCUltACT IS ItEIATIVE i!
', TO TE RATIO OF FitESSM IN TK TANK VERSUS TE PitESSUltE Ill REFEltENCE LEG. THIS REIATIONSRIP
! CAN pit 0 VIDE EITIER All Erit 0R WIIICM WILL CAUSE A SIGNAL THAT IS MIGNER OR IDWER TMAll TE ACTUAL LEVEL.
l INNE:
"A" SIDE INSTittRENTS LISTED j "B" SIDE SIMIIAR i
INSTittNEllT LINE 25 STM POINT FEEDWATER HF.ATER LEVEL INSTRUMENTATION PACE I 0F i 12-0285 (35)
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