ML17263A306

Rev 8 to FR-C.2, Response to Degraded Core Cooling.

ML17263A306
Person / Time
Site:	Ginna
Issue date:	05/19/1993
From:	Marlow T ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17263A305	List: ML17263A304 ML17263A306 ML17309A519
References
FR-C.2, NUDOCS 9306040165
Download: ML17263A306 (82)

Text

EOP: FR-C.2'ESPONSE TO DEGRADED CORE COOLING REV 8 PAGE 1 of 15 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE Sich PLANT SUPERI TENDENT EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:!9'30b040165 930524 PDR ADQCK 05000244 roe

EOP: FR-C.2 TITLE: RESPONSE TO DEGRADED CORE COOLING REV: 8 PAGE 2 of 15 A.PURPOSE-This procedure provides actions to restore adequate core cooling.B.ENTRY CONDITIONS/SYMPTOMS l.ENTRY CONDITIONS

-This procedure is entered from: a.F-0.2, CORE COOLING Critical Safety Function Status Tree, on any ORANGE condition.

EOP: FR-CD 2 RESPONSE TO DEGRADED CORE COOLING REV: 8 PAGE 3 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: Adverse CNHT values should be used whenever CNMT~ressure is greater than 4 psig or CNMT radiation is greater than 10+R/hr.1 Check RWST Level-GREATER THAN 284 Perform the following:

a.Ensure SI system aligned for cold leg recirculation using Steps 1 through ll of ES-1.3, TRANSFER TO COLD LEG RECIRCULATION.

b.Go to Step 4.

EOP: FR-C.2 RESPONSE TO DEGRADED CORE COOLING REV'PAGE 4 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2 Verify SI Pump And RHR Pump Emergency Alignment:

a.RHR pump discharge to Rx vessel deluge-OPEN~MOV-852A~MOV-852B a.Ensure at least one valve open.b.Verify SI pump C-RUNNING c.Verify SI pump A-RUNNING d.Verify SI pump B-RUNNING b.Manually start pump on available bus.c.Perform the following; 1)Ensure SI pumps B and C running.2)Ensure SI pump C aligned to discharge line A: o MOV-871B closed o MOV-871A open'3)Go to Step 3.d.Perform the following:

1)Ensure SI pumps A and C running, 2)Ensure SI pump C aligned to discharge line B: o MOV-871B open o MOV-871A closed e.Verify both SI pump C discharge valves-OPEN~MOV-871A~MOV-871B.3)Go to Step 3.e.Manually open valves as necessary.

EOP: FR-C.2 T!TLE RESPONSE TO DEGRADED CORE COOLING REV: 8 PAGE 5 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 3 Verify SI Pump Suction Alignment:

a.Check BAST level: o Level-GREATER THAN 10%o Annunciator B-23, BORIC ACID TANK LO LO LEVEL-EXTINGUISHED a.Perform the following:

1)Ensure at least one SI pump suction valve from RWST open.~MOV-825A~MOV-825B 2)Ensure at least one valve in each SI pump suction line from BAST closed.~MOV-826A or MOV-826B~MOV-826C or MOV-826D b.Verify SI pump suction valves from BAST-OPEN~MOV-826A~MOV-826B~MOV-826C~MOV-826D 3)Go to Step 4.b.Ensure both valves in either flow path open.o MOV-826A and MOV-826B-OR-o MOV-826C and MOV-826D c.Verify SI pump suction from RWST CLOSED~MOV-825A~MOV-825B c.Manually align valves as necessary.

'.0P~~

EOP: FR-C.2 TITLE!RESPONSE TO DEGRADED CORE COOLING REV: 8 PAGE 6 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 4 Verify SI Flow In Both Trains: a.SI line loop A and B flow indicators

-CHECK FOR FLOW a.Perform the following:

1)Manually start SI pumps and align valves as necessary.

2)Establish maximum charging flow.b.RCS pressure-LESS THAN 250 psig (465 psig adverse CNMT]c.RHR loop flow indicator-CHECK FOR FLOW b.Go to Step 5.c.Manually start RHR pumps and align valves.

EOP: 'FR-C.2 T!TLE: RESPONSE TO DEGRADED CORE COOLING REV: 8 PAGE 7 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED***************,**************************CAUTION IF ANY PRZR PORV OPENS BECAUSE OF HIGH PRZR PRESSURE, IT SHOULD BE CLOSED AFTER PRESSURE DECREASES TO LESS THAN 2335 PSIG (REFER TO STEP 5B).5 Check RCS Vent Paths: a.Power to PRZR PORV block valves-AVAILABLE b.PORVs-CLOSED a.Restore power to block valves unless block valve was closed to isolate an open PORV:~MOV-515, MCC C position 6C~MOV-516, MCC D position 6C b.IF PRZR pressure less than 2335 psig, THEN manually close PORVs.IF any PORV can NOT be closed, THEN manually close its block valve.c.Block valves-AT LEAST ONE OPEN c.Open one block valve unless it was closed to isolate an open PORV.d.Rx vessel head vent valves CLOSED d.Manually close valves.~SOV-590~SOV-591~SOV-592~SOV-593

EOP: FR-C.2 RESPONSE TO DEGRADED CORE COOLING REV 8 PAGE 8 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: Normal conditions for running RCPs are desired, but RCPs should not be tripped if normal conditions cannot be established or maintained.

6 Check RCP Status: a.At least one RCP-RUNNING b.Support conditions for the operating RCP(s)available (Refer to Attachment RCP START)a, Go to Step 9.b.Try to establish support conditions for the operating RCP.7 Check RVLIS Fluid Fraction a.Fluid fraction (any RCP on)GREATER THAN 60%b.Return to procedure and step in effect.a.IF increasing, THEN return to Step l.IF NOT, then go to Step 8.8 Check If One RCP Should Be Stopped: a.Both RCPs-RUNNING b.Stop one RCP c.Go to Step 10 a.Go to Step 10.

i~I' EOP: PR-C.2 RESPONSE TO DEGRADED CORE COOLING REV: 8 PAGE 9 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 9 Check Core Cooling: a.RVLIS level (no RCPs)-GREATER THAN 43%[46%adverse CNMT]b.Core exit T/Cs-LESS THAN 700'F c.Return to procedure and step in" effect a.IF increasing, THEN return to Step l.IF NOT, THEN go to Step 10.b.IF decreasing, THEN return to Step 1.IF NOT, THEN go to Step 10.10'Check SI ACCUM Discharge Valves-OPEN~MOV-841~MOV-865 IF SI ACCUM discharge valves closed after ACCUM discharge, THEN go to Step 11.IF NOT, THEN perform the following:

a.Dispatch AO with locked valve key to locally close breakers for SI ACCUM discharge valves.~MOV-841, MCC C position 12F~MOV-865, MCC D position 12C b.Open SI ACCUM discharge valves.~ACCUM A, MOV-841~ACCUM B, MOV-865

EOP: FR-C.0 TITLE: RESPONSE TO DEGRADED CORE COOLING REV: 8 PAGE 10 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED*****************************************CAUTION o IF CST LEVEL DECREASES TO LESS THAN 5 FEET, THEN ALTERNATE WATER SOURCES FOR AFW PUMPS WILL BE NECESSARY (REFER TO ER-AFW.1, ALTERNATE WATER SUPPLY TO AFW PUMPS).o A FAULTED OR RUPTURED S/G SHOULD NOT BE USED IN SUBSEQUENT STEPS UNLESS NO INTACT S/G IS AVAILABLE.

NOTE;TDAFW pump flow control valves fail open on loss of IA.*11 Monitor Intact S/G Levels: l a.'arrow range level-GREATER THAN 5%[25%adverse CNMT]b.Control feed flow to maintain narrow range level between 17%[25%adverse CNMT]and 50%a.=Increase total feed flow to restore narrow range level greater than 5%[25%adverse CNMT]in at least one S/G.12 Verify Condenser Steam Dump In Manual: a.Verify condenser available:

o Intact S/G MSIV-OPEN o Annunciator G-15, STEAM DUMP ARMED-LIT a.Place intact S/G ARV controller in MANUAL and go to Step 13, b.Place steam dump mode selector switch in MANUAL c.Place steam dump controller in MANUAL

EOP: PR-C.2 RESPONSE TO DEGRADED CORE COOLING REV 8 PAGE 11 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED*****************************************CAUTION THE FOLLOWING STEP WILL CAUSE SI ACCUMULATOR INJECTION WHICH MAY RESULT IN A RED PATH CONDITION IN F-0.4, INTEGRITY STATUS TREE.THIS PROCEDURE SHOULD BE COMPLETED BEFORE TRANSITION TO FR-P.1, RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK.13 Depressurize All Intact S/Gs To 200 PSIG: a.Maintaincooldown rate in RCS cold legs-LESS THAN 100'F/HR b.Dump steam to condenser b.Manually or locally dump steam from intact S/Gs: o Use S/G ARVs.-OR-o Open TDAFW pump steam supply valve(s)for affected S/G(s):~S/G A, MOV-3505A~S/G B)MOV-3504A-OR-o Locally perform the following:

o Open intact S/G MSIV bypass valve.o Open priming air ejector steam isolation valves.~V-3580~V-3581 c.Check S/G pressures-LESS THAN 200 PSIG c.Return to Step 11.d.Stop S/G depressurization

EOP s FR-C.2 RESPONSE TO DEGRADED CORE COOLING REV'PAGE 12 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED*****************************************CAUTION RHR PUMPS SHOULD NOT BE RUN LONGER THAN 1 HOUR WITHOUT CCW TO THE RHR HEAT EXCHANGERS.

14 Check RHR Pumps-RUNNING Manually start pumps as necessary.

15 Check If SI ACCUMs Should Be Isolated: a.RCS hot leg temperatures

-BOTH LESS THAN 400'F a.Go to Step 17.b.Dispatch AO with locked valve key to locally close breakers for SI ACCUM discharge valves if necessary~MOV-841, MCC C position 12F~MOV-865, MCC D position 12C c.Close SI ACCUM discharge valves~MOV-841~MOV-865 c.Vent any unisolated ACCUMs: 1)Open vent valves for unisolated SI ACCUMs.~ACCUM A, AOV-834A~ACCUM B, AOV-834B d.Locally reopen breakers for MOV-841 and MOV-865 2)Open HCV-945.

C EOP: FR-C.2 TITLE: RESPONSE TO DEGRADED CORE COOLING REV: 8 PAGE 13 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED*****************************************CAUTION SYMPTOMS FOR FR-C.1, RESPONSE TO INADEQUATE CORE COOLING, SHOULD BE CLOSELY MONITORED DURING SUBSEQUENT STEPS.16 Stop All RCPs 17 Depressurize All Intact S/Gs To Atmospheric Pressure: a.Maintain cooldown rate in RCS cold legs-LESS THAN 100'F/HR b.Dump steam to condenser b.Manually or locally dump steam from intact S/Gs: 1)Use S/G ARVs.2)Open TDAFW pump steam supply valve(s)for affected S/G(s):~S/G A, MOV-3505A~S/G B)MOV-3504A 3)Locally perform the following:

o Open intact S/G MSIV bypass valve.o Open priming air ejector steam isolation valves.~V-3580~V-3581

FOP: v~FR-C.2 RESPONSE TO DEGRADED CORE COOLING REV: 8 PAGE 14 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 18 Verify SI Flow: o SI line loop A and B flow indicators

-CHECK FOR FLOW Perform the following:

a.Continue efforts to establish SI flow.-OR-o RHR loop flow indicator-CHECK FOR FLOW b.Try to establish maximum charging flow.c.Return to Step 17.19 Isolate Both SI ACCUMs: a.Close SI ACCUM discharge valves~MOV-841~MOV-865 a.Vent any unisolated ACCUMs: 1)Open vent valves for unisolated SI ACCUMs.b.Locally reopen breakers for MOV-841 and MOV-865~ACCUM A, AOV-834A~ACCUM B, AOV-834B 2)Open HCV-945.20 Stop All RCPs 21 Check Core Cooling: o RVLIS level (no RCPs)-GREATER THAN 68%f73%adverse CNMT]o Both RCS hot leg temperatures-LESS THAN 320'F Return to Step 17.

EOP: FR-C.2 RESPONSE TO DEGRADED CORE COOLING REV 8 PAGE 15 of 15 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 22 Go to Appropriate Plant Procedure a.Check RWST level-GREATER THAN 28'.Go to E-l, LOSS OF REACTOR OR SECONDARY COOLANT, Step 17 a.Go to ES-1.3, TRANSFER TO COLD LEG RECIRCULATION, Step l.-END-

EOP FR-C.2 TITLE: RESPONSE TO DEGRADED CORE COOLING REV: 8 PAGE 1 of 1 FR-C.2 APPENDIX LIST TITLE 1)ATTACHMENT RCP START PAGES 8\r~'

EOP: t FR-P.1 T!TLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 1 of 22 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATXON CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE T SUPERXNTENDENT EFFECTXVE DATE CATEGORY 1.0 REVIEWED BY:

1 EOP: I FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 2 of 22 A.PURPOSE-This procedure provides actions-to avoid, or limit, thermal shock or pressurized thermal shock to the reactor pressure vessel, or overpressure conditions at low temperature.

B.ENTRY CONDITIONS/SYMPTOMS 1.ENTRY CONDITIONS

-This procedure is entered from: a.F-0.4, INTEGRITY Critical Safety Function Status Tree, on either a RED or ORANGE condition.

e EOP:, FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 3 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: Adverse CNMT values should be used whenever CNMT pressure is greater than 4 psig or CNHT radiation is greater than 10+" R/hr.1 Check RCS Pressure-GREATER THAN 250 PSIG[465 PSIG~adverse CNMT]IF RHR flow greater than 475 gpm, THEN return to procedure and step in effect.

f EOP: I FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION II REV: 8 PAGE 4 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: A faulted S/G is any S/G that is depressurizing in an uncontrolled manner or is completely depressurized.

2 Check RCS Cold Leg Temperatures

-STABLE OR INCREASING Try to stop RCS cooldown: a.Ensure S/G ARVs closed.b.Close both S/G MSIVs.c.Ensure MFW flow control valves closed.+MFW regulating valves~MFW bypass valves d.Ensure MFW pumps tripped.e.Rotate reheater steam supply controller cam to close reheater steam supply valves.f.IF S/G pressure less than condensate pressure, THEN stop all condensate pumps.g.IF RHR system in service, THEN stop any cooldown from RHR system.h.Control total feed flow to non-faulted S/G(s)greater than 200 gpm until narrow range level greater than 5%[25%adverse CNMT]in at least one non-faulted S/G.WHEN S/G level greater than 5S[25%adverse CNMTJ in one non-faulted S/G, THEN limit feed flow to stop RCS cooldown.This Step continued on the next page.

EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV 8 PAGE 5 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED (Step 2 continued from previous page)i.Minimize cooldown from faulted S/G(s): 1)Close faulted S/G(s)TDAFW pump steam supply valve(s).~S/G A, MOV-3505A~S/G B, MOV-3504A 2)IF both S/G(s)faulted, THEN control feed flow at 50 gpm to each S/G.3)IF any S/G NOT faulted, THEN isolate all feedwater to faulted S/G unless necessary for RCS temperature control.IF a faulted S/G is necessary for RCS temperature control, THEN control feed flow at 50 gpm to that S/G.3 Check PRZR PORV Block Valves: a.Power to PORV block valves AVAILABLE a.Restore power to block valves unless block valve was closed to isolate an open PORV: b.Block valves-AT LEAST ONE OPEN~MOV-515, MCC C position 6C~MOV-516, MCC D position 6C b.Open one block valve unless it was closed to isolate an open PORV.IF at least one block valve can NOT be opened, THEN dispatch AO to locally check breaker.~MOV-515, MCC C position 6C~MOV-516, MCC D position 6C 1 0 EOP: I FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV 8 PAGE 6 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED**%*4************************************

CAUTION IF ANY PRZR PORV OPENS BECAUSE OF HIGH PRZR PRESSURE, THEN STEP 4 SHOULD BE PERFORMED AFTER PRESSURE DECREASES TO LESS THAN THE APPLICABLE PORV SETPOINT.4 Check PRZR PORV Status: a.Check Reactor Vessel Overpressure Protection System-IN SERVICE a.Go to Step 4d.b.Check RCS pressure-LESS THAN 410 PSIG b.Perform the following:

l)Ensure at least one PRZR PORV open.2)Continue with Step 5.WHEN pressure less than setpoint, THEN do Step 4e.c.Go to Step 4e d.PRZR pressure-LESS THAN 2335 PSIG e.Verify PRZR PORVs-CLOSED d.Perform the following:

1)Ensure at least one PRZR PORV open.2)Continue with Step 5.WHEN pressure less than setpoint, THEN do Step 4e.'7 e.Manually close valve.IF any val~e can NOT be closed, THEN manually close its block valve.

~l>1~1>>I'8 EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 7 of 22 STEP.ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 5 Check SI Pumps-ANY RUNNING Go to Step 14.6 Check If SI Can Be Terminated:

o RCS subcooling based on core exit T/Cs-GREATER THAN 50'F USING FIGURE MIN SUBCOOLING o Check RVLIS indication:

o Level (no RCPs)-GREATER THAN 68%[73%adverse CNMTj-OR-o Fluid fraction (any RCP running)-GREATER THAN 80%Do NOT stop SI pumps'erform the following:

a.IF RCS subcooling based on core exit T/Cs greater than O'F using Figure MIN SUBCOOLING and no RCP running, THEN attempt to start an RCP: 1)Establish conditions for starting an RCP: 'Bus llA or 11B energized o Refer to Attachment RCP START 2)IF conditions established, THEN start one RCP.b.Go to Step 27.*****************************************CAUTION IF OFFSITE POWER IS LOST AFTER SI RESET, THEN SELECTED SW PUMPS AND ONE CCW PUMP WILL AUTO START ON EMERGENCY D/G.MANUAL ACTION WILL BE REQUIRED TO RESTART SAFEGUARDS EQUIPMENT.

7 Reset SI

EOP: I FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 8 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 8 Stop SI And RHR Pumps And Place In AUTO 9 Reset CI: a.Depress CI reset pushbutton b.Verify annunciator A-26, CNMT ISOLATION-EXTINGUISHED b.Perform the following:

1)Reset SI.2)Depress CI reset pushbutton.

10 Verify Adequate SW Flow: a.Check at least two SW pumps RUNNING a.Manually start SW pumps as power supply permits (258 kw each).IF less than two SW pumps running, THEN perform the following:

1)Ensure SW isolation.

2)Dispatch AO to establish normal shutdown alignment (Refer to Attachment SD-l).b.Dispatch AO to establish normal shutdown alignment{Refer to Attachment SD-1)3)Go to Step 12.WHEN adequate SW available, THEN do Step 11.

{a EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 9 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 11 Establish IA to CNMT: a.Verify non-safeguards busses energized from offsite power o Bus 13 normal feed-CLOSED-OR-o Bus 15 normal feed-CLOSED b.Verify SW isolation valves to turbine building-OPEN~MOV-4613 and MOV-4670~MOV-4614 and MOV-4664 c.Verify at least two air compressors

-RUNNING d.Check IA supply: o Pressuxe-GREATER THAN 60 PSIG o Pressure-STABLE OR INCREASING e.Reset both trains of XY relays for IA to CNMT AOV-5392 f.Verify IA to CNMT AOV-5392-OPEN a.Perform the following:

1)Close non-safeguards bus tie breakers:~Bus 13 to Bus 14 tie'Bus 15 to Bus 16 tie 2)Verify adequate emergency D/G capacity to run air compressors (75 kw each).IF HQT, THEM evaluate if CHHT RECIRC fans should be stopped (Refer to Attachment CNMT RECIRC FANS).3)WHEN bus 15 restored, THEN reset control room lighting.b.Manually align valves, c.Manually start air compressors as power supply permits (75 kw each).IF air compressors can NOT be started, THEN dispatch AO to locally reset compressors as necessary.

d.Perform the following:

1)Continue attempts to restore IA (Refer to AP-IA.1, LOSS OF IZISTRUMENT AIR).2)Continue with Step 12.WHEN IA restored, THEN do Steps lie and f.

l4 EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 10 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED*****************4***********************CAUTION ALIGNING SI PUMP SUCTION TO RWST BEFORE ISOLATING BAST MAY RESULT IN BACKFLOW~FROM RWST TO BASTS.12 Verify SI Pump Suction Aligned To RWST: a.SI pump suction valves from BASTs-CLOSED~MOV-826A~MOV-826B~MOV-826C~MOV-826D a.Ensure at least one valve in each flow path closed.~MOV-826A or MOV-826B~MOV-.826C or MOV-826D b.SI pump suction valves from RWST OPEN~MOV-825A~MOV-825B b.Ensure at least one valve is open.c.Consult TSC to determine if SI flush is required (Refer to Attachment SI FLUSH) 1 J EOP: FR-P.1 TITLE%RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV 8 PAGE 11 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED T 13 Check If Charging Flow Has Been Established:

a.Charging pumps-ANY RUNNING a.Perform the following:

1)IF CCW flow is lost to any RCP thermal barrier OR any RCP Pl seal outlet temperature of f scale high, THEN dispatch AO with key to RWST gate to locally close seal injection needle valve(s)to affected RCP:~RCP A, V-300A~RCP B>V-300B 2)Ensure HCV-142 open, demand at OS.b.Align charging pump suction to RWST'LCV-112B-OPEN o LCV-112C-CLOSED b.IF LCV-112B can NOT be opened, THEN perform the following:

1)Verify charging pump A NOT running and place in.PULL STOP.c.Start charging pumps as necessary and adjust charging flow to restore PRZR level 2)Dispatch AO to locally open manual charging pump suction from RWST (V-358 located in charging pump room).3)WHEN V-3S8 open, THEN direct A'0 to close V-268 to isolate charging pumps B and C from VCT (V-268 located in charging pump room).

EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV*8 PAGE 12 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED*14 Monitor SI Reinitiation Criteria: o RCS subcooling based on core exit T/Cs-GREATER THAN FIGURE MIN SUBCOOLING o RVLIS indication:

Manually operate SI pumps as necessary and perform the following:

a.IF RCS subcooling based on core exit T/Cs greater than Figure MIN SUBCOOLING and no RCP running, THEN attempt to start a RCP: o Level-GREATER THAN 68%[73%adverse CNMT]-OR-o Fluid fraction (any RCP running)-GREATER THAN 80%1)Establish conditions for starting an RCP: o Bus 11A or 11B energized o Refer to Attachment RCP START 2)IF conditions established, THEN start one RCP.b.Go to Step 27.15 Check RCS Hot Leg Temperatures

-STABLE IF increasing, THEN control feed flow and dump steam to stabilize RCS hot leg temperatures.

IF decreasing, THEN verify that actions of Step 2 have been performed before continuing with procedure.

0 t1 EOP:, FR-P.1 T1TLE RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 13 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 16 Check If SI ACCUMs Should Be Isolated: a.Check the following:

o RCS subcooling based on core exit T/Cs-GREATER THAN O'USING FIGURE MIN SUBCOOLING a.Return to Step 14.o RVLIS indication:

o Level-GREATER THAN 68%(73%adverse CNMT]-OR-o Fluid fraction (any RCP running)-GREATER THAN 80%b.Dispatch AO with locked valve key to locally close breakers for SI ACCUM discharge valves~MOV-841, MCC C position 12F~MOV-865, MCC D position 12C c.Close SI ACCUM discharge valves~MOV-841~MOV-865 c.Vent any unisolated ACCUMs: 1)Open vent valves for unisolated SI ACCUMs.~ACCUM A, AOV-834A~ACCUM B, AOV-834B d.Locally reopen breakers for MOV-841 and MOV-865 2)Open HCV-945.3)Continue with Step 17.Do NOT decrease RCS pressure to less than unisolated ACCUM pressure.

EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 14 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED**********************************'*******CAUTION THE RCS SHOULD NOT BE DEPRESSURIZED TO LESS THAN SI ACCUM PRESSURE UNTIL SI ACCUMS ISOLATED.NOTE: o If auxiliary spray is in use, spray flow may be increased by closing normal charging valve AOV-294 and normal PRZR spray valves.o When using a PRZR PORV select one with an operable block valve.17 Depressurize RCS To Decrease RCS Subcooling:

a.Depressurize using normal PRZR spray if available a.IF normal spray NOT available, THEN use one PRZR PORV.IF IA NOT available, THEN refer to Attachment N2 PORVS.b.Depressurize RCS until either of the following conditions satisfied:

IF no PRZR PORV available, THEN use auxiliary spray valve (AOV-296).

o RCS subcooling based on core exit T/Cs-LESS THAN 10'F USING FIGURE MIN SUBCOOLING-OR-o PRZR level-GREATER THAN 87%[75%adverse CNMT]c.Stop RCS depressurization

EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV 8 PAGE 15 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 18 Check If RCPs Must Be Stopped: a.RCPs-ANY RUNNING b.Check the following:

o RCP 41 seal D/P-LESS THAN 220 PSID a.Go to Step 19.b.Go to Step 19.-OR-o RCP 51 seal leakoff-LESS THAN 0.25 GPM c.Stop affected RCP(s)**********************4******************CAUTION AN INCREASE IN RCS PRESSURE MAY RESULT IN EXCESSIVE REACTOR VESSEL STRESS.RCS PRESSURE AND TEMPERATURE SHOULD BE MAINTAINED STABLE WHILE PERFORMING SUBSEQUENT STEPS IN THIS PROCEDURE.

19 Check PRZR Level-GREATER THAN 134[404 adverse CNMT]Try to restore level with charging while maintaining stable RCS pressure.IF level can NOT be restored, THEN go to Step 26.

EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 16 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 20 Check If NorInal CVCS Operation Can Be Established a.Verify IA restored: o IA to CNMT{AOV-5392)

-OPEN o IA pressure-GREATER THAN 60 PSIG a.Continue with Step 24'HEN IA restored, THEN do Steps 20 through 23: b.CCW pumps-ANY RUNNING b.Perform the following:

1)IF any RCP 51 seal outlet temperature offscale high, THEN isolate CCW to thermal barrier of affected RCP{s).~RCP A, MOV-749A and MOV-759A~RCP B, MOV-749B and MOV-759B c.Verify instrument bus D-ENERGIZED d.Charging pump-ANY RUNNING 2)Manually start one CCW pump.c.Energize MCC BE IF MCC B NOT available, THEN perform the following:

1)Verify MCC A energized.

2)Place instrument bus D on maintenance supply.d.Continue with Step 25.WHEN any charging pump running, THEN do Steps 21 through 25.

EOP: r FR-P.1 T1TLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REU: 8 PAGE 17 o f 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED******%**********************************CAUTION IF RCS PRESSURE LESS THAN 250 PSIG, THEN PCV-135 SHOULD BE ADJUSTED TO ESTABLISH DESIRED LETDOWN FLOW, NOT TO INCREASE PRESSURE.I 21 Establish Normal Letdown: a.Establish charging line flow to REGEN Hx-GREATER THAN 20 GPM b.Place the following switches to CLOSE'Letdown orifice valves (AOV-200A, AOV-200B, and AOV-202)~AOV-371, letdown isolation valve+AOV-427, 1'oop B cold leg to REGEN Hx c.Place letdown controllers in MANUAL at 25%open~TCV-130~PCV-135 d.Reset both trains of XY relays for AOV-371 and AOV-427 e.Open AOV-371 and AOV-427 f.Open letdown orifice valves as necessary g.Place TCV-130 in AUTO at 105'F h.Place PCV-135 in AUTO at 250 psig i.Adjust charging pump speed and HCV-142 as necessary IF RCP seal return has been established, THEN establish excess letdown as follows: o Place excess letdown divert valve, AOV-312, to NORMAL.o Ensure CCW from excess letdown open, (AOV-745).

o Open excess letdown isolation valve AOV-310.o Slowly open HCV-123 to maintain excess letdown temperature less than 195'F and pressure less than 100 psig.o Ad)ust charging pump speed as necessary.

IF RCP seal return NOT established, THEN consult TSC to determine if excess letdown should be placed in service.

D EOP: 0 FR-P.1 TlTLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 18 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 22 Check VCT Makeup System: a.BAST levels-ANY GREATER THAN 5%b.Check Annunicator B-23, BORIC ACID TANK LO LO LEVEL-EXTINGUISHED a.Go to.Step 23.b.Perform the following:

1)Adjust boric acid flow control valve to required flow from table.BAST LEVEL BORIC ACID FLOW (GPM)<10%10-15%15-208>20%4.5 6.7 8.9 10.0 c.Adjust, boric acid flow control valve in AUTO to 4.5 gpm d.Verify the following'.

1)RMW mode selector s~itch in AUTO 2)Go to Step 22d.d.Ad)ust controls as necessary.

2)RMW control armed-RED LIGHT LIT e.Check VCT level: o Level-GREATER THAN 20%-OR-o Level-STABLE OR INCREASING e.Manually increase VCT makeup flow as follows: 1)Ensure BA transfer pumps and RMW pumps running.IF NOT, THEN reset MCC C and MCC D UV lockouts as necessary.

2)Place RMW flow control valve HCV-111 in MANUAL and increase RMW flow.3)Increase boric acid flow as necessary.

0 EOP: I PR-P.1 T!TLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 19 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 23 Check Charging Pump Suction Aligned To VCT: a.VCT level-GREATER THAN 20%a.IF VCT level can NOT be maintained greater than 5%, THEN perform the following:

1)Ensure charging pump suction aligned to RWST o LCV-112B open o LCV-112C closed 2)Continue with Step 24.WHEN VCT level greater than 408, THEN do Step 23b.b.Verify charging pumps aligned to VCT o LCU-112C-OPEN o LCV-112B-CLOSED b.Hanually align valves as necessary.

24 Check PRZR Level-LESS THAN 874[754 adverse CNMT]Control charging and letdown as necessary to reduce PRZR level to less than 87%I75%adverse CNMT].If necessary establish excess letdown.IF no letdown available AND CCW to RCPs established, THEN cycle charging pumps as necessary to control PRZR level.

EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 20 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: For optimum long term pressure control, saturated conditions should be restored in the PRZR.25 Verify PRZR Liquid Temperature (TI-424)-AT SATURATION FOR DESIRED PRESSURE IF PRZR liquid temperature low, THEN energize PRZR heaters as necessary to establish desired temperature.

26 Check RCS Subcooling Based On Core Exit T/Cs-BETWEEN O'AND 10'F USING FIGURE MIN SUBCOOLING IF RCS pressure less than 160 psig f200 psig adverse CNMT], THEN go to Step 27.IF NOT, THEN depressurize using normal spray.IF normal spray NOT available and letdown is in service, THEN use, auxiliary spray for any further depressurization.

Return to Step 17b.IF auxiliary spray NOT available, THEN return to Step 17a.27 Check Cool Down Rate In RCS Cold Legs-GREATER THAN 100'F IN ANY 60 MINUTES PERIOD Return to procedure and step in effect.28 Maintain RCS Pressure And Temperature Stable For At Least 1 Hour a.Control steam dump and feed flow as necessary b.Perform actions of other procedures in effect which do not cool down the RCS or increase RCS pressure until the RCS temperature soak has been completed

EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 21 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 29 WHEN 1 HOUR Soak Is Complete, THEN Continue RCS Cooldown And Depressurization As Necessary a.Maintain RCS pressure and cold leg temperature within the limits of Figure SOAK LIMITS b.Establish and maintain cooldown rate in RCS cold legs-LESS THAN 50'F IN ANY 60 MINUTES PERIOD 30 Verify SI Flow Not Required: o RCS subcooling based on core exit T/Cs-GREATER THAN FIGURE MIN SUBCOOLING o RVLIS vindication:

o Level-GREATER THAN 68%[73%adverse CNMT]-OR-o Fluid fraction (any RCP running)-GREATER THAN 80$Manually operate SI pumps as necessary.

IF RCS subcooling based on core exit T/Cs greater than Figure MIN SUBCOOLING and no RCP running, THEN perform the following:

a.Establish conditions for starting an RCP: o Bus 11A or llB energized o Refer to Attachment RCP START b.IF conditions established, THEN start one RCP.

1 IV y EOP: FR-P.1 T1TLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 22 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 31 Return To Procedure And Step In Effect-END-

EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 1 of 1 FR-P.1 APPENDIX LIST TITLE PAGES 1)FIGURE MIN SUBCOOLING 2)FIGURE SOAK LIMITS 3)ATTACHMENT RCP START 4)ATTACHMENT SD-1 5)ATTACHMENT CNMT RECIRC FANS 6)ATTACHMENT N2 PORVS 7)ATTACHMENT SI FLUSH

~V EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 1 of 1 FIGURE MIN SUBCOOLING NOTE: Subcooling Margin=Saturation Temperature From Figure Below[-]Core Exit T/C Indication RC 2500 2400 2300 2200 2100 2000 1900 1800.1700 1600 1500 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0 S PRESSURE (PSIG)RCS PRESSURE INCREHENTS 20 PSIG SUBCOOLED REGION ADVERSE CNHT NORHAL CNHT INADE(UATE SUBCOOL ING REGION TEMPERATURE INCREHENTS 10'F 0 200 250 300 350 400 450 500 550 600 650 700 CORE EXIT SATURATION TEHPERATURE

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EOP: FR-P.1 TITLE: RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 8 PAGE 1 of 1 RCS 2500-2400 2300 2200 2100 2000 1900 ISOO 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0 PRESSURE (PSIG)RCS PRESSURE INCREMENTS 20 PSIG FIGURE SOAK LIMITS REMAIN BELOW CURVE TEMPERATURE INCREMENTS 10'F 200 250 300 350 400 450 500 550 600 650 700 RCS COLD LEG TEMPERATURE

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