ML20056H285
| ML20056H285 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 08/30/1993 |
| From: | FLORIDA POWER CORP. |
| To: | |
| References | |
| PROC-930830, NUDOCS 9309090091 | |
| Download: ML20056H285 (200) | |
Text
{{#Wiki_filter:DOCUMENT TRANSMITTAL 714
.FOR DOCUMENT NOTIFICATION AND/OR TRANSMITTAL P . TO: NRC (DC DESK) MAC:
[ L DATE: Mon Aug 30 11:08:00 2993 CPY COPY TOTALS DOCUMENT REV COMENTS # INFO CNTL MSTR l L EOP0002 01 7 1 0 0 EOP0003 01 7 1 0 0 EOP0005 01 7 1 0 0 EOP0007 01 7 1 0 0 [' ' EOP0013 01 7 1 0 0 EOP0008 01 7 1 0 0 EOP0006 01 7 1 0 0 EOP0004 01 7 1 0 0 l h i IBSTRUCTipts TO THE ADDRESSEE: 1 N YOU ARE A HOLDER Of A HARD CDPY.PLE ASE VIRIFY TN! DOCUMENT!si RECEIVE 0 AGREIS WITN THE ABOVE Of $CRIPfl0E l C SURE TO DESTROV DDCualEWilEl DR PORTIDh5 D7 DOCUMENT (5) SUPERSEDED FY THE ABDVL THE SIGSATURE NIDICATIS THAT YOU HAVE RE AD AND UNDEAST AND THESE NISTRUCTION$ AND THE CHASEE8 TO THE DOCUMENTS. l~ GTORN SIGOED AND DATfD T AANIMITT4a 10 MAIL CODE: _ I _ NRIB
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VITAL SYSTEM STATUS VERIFICATION 1.0 ENTRY CONDITIONS jf in MODE 1 or 2, AND a Reactor Trip has QB should have occurred, THEN use this E0P. gewina :,, jj .;
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2.0 IMMEDIATE ACTIONS () ACTIONS DETAILS . .............................................................................. 1 CAUTION , Steps 2.1 through 2.3 mu;t be performed prior to performing any subsequent actions. This is to ensure adequate heat rer. oval j capabilities. 2.1 Depress Rx Trip pushbutton j 2.2 Ensure CRD Groups 1 - through 7 are fully ; inserted. ! i If any CRD Group has NOT 1 De-energize CRD system: . fully inserted, THEN de-energize the CRD o Open 480V Bkr 3305 ! system. o Open 480V Bkr 3312 2 Re-close feeders to 480V Reactor Aux Bus 3A and Plant Aux Bus: [ o Close 480V Bkr 3305 . o Close 480V Bkr 3312 . i ; i i l E0P-02 REV 01 PAGE 3 of 31 VSSV
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I 2.0 IMMEDIATE ACTIONS (CONT) I ACTIONS DETAILS 2.3 Ensure Reactor Power is decreasing on Intermediate Range. ; IE NOT, 1 Ensure MVP suction from BWST. THEN borate to 1 1% o MUV-58 open , shutdown margin. o MUV-73 open : 2 Open HPI valve MUV-24 to establish 2 55 gpm. l 3 Divert letdown flow to the RCBTs as necessary to allow continued ; boration. j E the BWST is not available, l THEN perform the following: 1 Start CAP-1A or CAP-1B. ,
? Open CAV-60.
3 Ensure makeup system flow is 2 10 gpm. 2.4 Depress Turbine Trip , pushbutton. , J 2.5 Ensure Turbine Throttle Valves 0_R Governor Valves i are closed. T
- E NOT, 1 Select closed, ALL MSIVs: .
THEN close MSIVs. ' Close MSV-411 Close MSV-412 Close MSV-413 Close MSV-414 i 2 Control OTSG PRESS using Atmospheric Dump Valves: o MSV-25, A OTSG ADV o MSV-26, B UTSG ADV i O E0P-02 REV 01 PAGE 5 of 31 VSSV I l
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3.0 FOLLOW-UP ACTIONS ACTIONS DETAILS i 3.1 Notify personnel of plant o SOTA l conditions as required. j o Plant Operators to perform required post-trip actions per , Enclosure 1 i o SSOD to evaluate plant 4 conditions for potential entry i into the Emergency Plan. i 3.2 Ensure output Breakers are o Ensure open Bkr 1661 open. o Ensure open Bkr 1662 , i E NOT, 1 At rear of MCB TGF, select "BKR ltiG select tne Backup TRIP COIL SELECTOR SWITCH" to l Trip Coils and attempt to " BACKUP": t open the output breakers. o Bkr 1661 on " BACKUP" ! o Bkr 1662 on " BACKUP" l O E Output Breakers fail to open using Backup Trip Coils, 2 Open Output Breakers: l i THEN notify Dispatcher to o Bkr 1661 open I separate CR-3 from the o Bkr 1662 open 500KV grid. ' 3.3 Ensure the main generator ! Field Bkr is open. 3.4 Select voltage regulator ' to "0FF". O , E0P-02 REV 01 PAGE 7 of 31 VSSV i
RULE #3, EFW CONTROL ; Ensure EFW flow limits are NOT exceeded... t 1 Ensure required OTSG level... O 2 3 JF adequate subcooling margin does NOT exist, THEN ensure OTSG levels are continuously progressing towards 80 - l 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > . 100 psi below desired setpoint... 1 i O : I i l i O E0P-02 REV 01 PAGE 8 of 31 VSSV
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3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS 3.5 Ensure BOTH of the MAIN FW BLOCK" valves: following are occurring: A OTSG B OTSG o " MAIN FW BLOCK" valves are closing, FWV-30 FWV-29 o MFW flows have decreased. IE NOT, o Trip both MFWPs: THEN trip both MFWPs. o Trip FWP-2A o Trip FWP-28 o Ensure both EFWPs start and control flow, o EFP-1 o EFP-2 [ RULE #3, EFW CONTROL] O 1E both EFPs fail to start, THEN GO TO E0P-04, Inadequate Heat Transfer, beginning with step 3.1. 3.6 Ensure "L0 LOAD FW BLOCK" LO LOAD FW valves: valves are closing. VALVE A OTSG B OTSG IE NOT, THEN close associated "L0 BLOCK FWV-31 FWV-32 LOAD FW CONTROL" valve. CONTROL FWV-37 FWV-38 O E0P-02 REV 01 PAGE 9 of 31 VSSV
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3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS 3.7 E MFW is 1101 available, o E both MFWPs are tripped, I THEN ensure both EFWPs THEN ensure both EFWPs start and I start AND control flow. control flow. j o EFP-1 I o EFP 2 [ RULE #3, EFW CONTROL] E both EFPs fail to start, ; THEN GO TO E0P-04, Inadequate Heat Transfer, beginning with step 3.1. 3.8 Ensure PZR level > 50". Restore PZR Level: l E NOT, 1 Close MUV-51, Block Orifice Byp. l THEN restore PZR level. ! 2 Open MUV-24, Normal MU HPI : valve. i 3 Ensure BWST suctions to MU open: o Open MUV-58 l o Open MUV-73 ! i E PZR level does NOT recover, , THEN perform the following: [ i 4 Start second MVP and required i cooling water pumps j i 5 Open additional HPI valves as ! required to restore PZR level: { t MUV-23 l MUV-25 - MUV-26 i f 3.9 Control PZR level between o Adjust MUV-31 setpoint or position ; 80 and 120". as required to maintain PZR level .i between 80 and 120". ! E PZR level < 80", ; THEN close MUV-51, Block o Ensure PZR heater control is in ; Orifice Byp. AUTO. ; O
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3.0 FOLLOW-UP ACTIONS (CONT 1 ACTIONS DETAILS l 3.10 Ensure OTSG PRESS TBV position can only be verified , controlling at = 1010 locally. (980 - 1040) psig. E PRESS > 1040 psig, OTSG PRESS control: JE!i ensure TBVs and ADVs controlling PRESS. N/A A OTSG B OTSG TBVs MSV-9 MSV-11 - MSV-10 MSV-14 ADVs MSV-25 MSV-26 E PRESS < 980 psig, o E TBVs NOT closed, THEN check for open: THEN notify TB Operator to close o TBVs, affected TBV block valve. j o, ADVs, o MSSVs, o E ADVs NOT closed, ; AND take directed action THEN notify TB Operator to close for any valve found open. affected ADV block valve. i O o E MSSVs are NOT closed, THEN attempt to reseat any nat 'ully seated MSSVs. a 1 __ Momentarily lower affected 0TSG PRESS to = 800 psig to , reseat valve. ; 2 - E MSSVs do NOT reseat, ! THEN GO TO E0P-05, Excessive Heat Transfer, beginning with step 3.1. , i O E0P-02 REV 01 PAGE 13 of 31 VSSV I I
RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded... O 2 3 Ensure required 0TSG level... If adequate subcooling margin does NOT exist, IHEN ensure OTSG 1evels are continuously progressing towards 80 - 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > l 100 psi below desired setpoint... l l
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t ! 3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS l 3.11 E an uncontrolled OTSG 1 Depress pushbuttons on EFIC pressure reduction exists, Channels A and B for affected QR a steam leak is in the OTSG: RB, l THEN isolate the affected o " Main Stm Isolation" r l OTSG, o " Main Feed Isolation"
.A_M GO TO E0P-05, Excessive Heat Transfer, 2 Do NOT allow EFIC to feed the i beginning with step 3.1. isolated OTSG until directed by E0P-05. i o Place EFIC control valves in l HAND / CLOSED for affected OTSG: :
A-0TSG B-0TSG EFV-5B EFV-57 EFV-56 EFV-55 3 GO TO E0P-05, Excessive Heat Transfer, beginning with step O 3.1 1 l 3.12 Verify ICS power is 1 Trip both MFWPs: , available, o Trip FWP-2A I E NOT, o Trip FWP-2B i THEN trip both MFWPs: 2 Ensure both EFWPs start and . I control flow. o EFP-1 o EFP-2 [ RULE #3, EFW CONTROL] [ E both EFPs fail to start, THEN GO TO E0P-04, Inadequate Heat Transfer, beginning with step 3.1. l ' l 3 Ensure ADVs control OTSG ! l pressure: - o MSV-25, A OTSG PRESS o MSV-26, B OTSG PRESS E0P-02 REV 01 PAGE 15 of 31 VSSV
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3.0 FOLLOW-UP ACTIONS (CONT) l () ACTIONS DETAILS 3.13 Verify both ES 4160V and l 480V buses are energized. If HQ ES 4160V bus is ! energized, THEN GO TO E0P-12, Station Black Out, beginning with step 3.1. l IE ONLY 1 ES 4160V bus is energized, IHfB CONCURRENTLY PERFORM . AP-770, Emergency Diesel l i Generator Actuation, beginning with step 3.2. : i i i i I 4 + i L 4 ( i E0P-02 REV 01 PAGE 17 of 31 VSSV
RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded...
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Ensure required 0TSG 1evel... IE adequate subcooling margin does NOT exist, IBEH ensure OTSG levels are continuously progressing towards 80 - 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > , 100 psi below desired setpoint... :
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i 3.0 FOLLOW-UP ACTIONS (CONT) t ACTIONS DETAILS i 3.14 E @ RCPs are operating, 1 Ensure both EFWPs start and l THEN ensure EFIC actuates control flow. AND verify natural . circulation develops. [ RULE #3, EFW CONTROL] E EFW is NOT available, 2 Ensure EFIC NATURAL CIRCULATION THEN use MFW. setpoint is selected for level control. .. 3 Indications of Nat Circ: Tc coupled with and tracking Tut for OTSGs. AT (Tincore - Tc) develops and stabilizes. T4ncore within 10*F of Th. 3.15 Ensure IA PRESS is 1 85 Ensure available air compressors are psig. running: E NOT, IAP-1A , THEN ensure all available - air compressors are IAP-1B running. AND CONCURRENTLY PERFORM SAP-1A AP-470, Loss of Instrument Air, beginning with step SAP-1B ,. 3.1. SAP-1C SAP-ID SAP-1E Diesel air compressor
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I Table 1 l
. Tsat Monitor Adequate Subcooling Margin:
- RCS Margin
> 1500 psig 30*F i f
< 1500 to 50*F i
> 250 psig j s 250 to 70*F !
> 150 psig 3
s 150 psig SPDS , s 200*F N/A j Table 2, OTSG Tube to Shell AT Limits: Tensile AT Limit: Avg Tshe11 - Teolo ! s 100*F Compressive AT Limit: That - Avg Tsnell 1 60
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"A" 0TSG shell Temps: A-730, 731, 732, 733, 734, Avg: R-771 ,
"B" OTSG shell Temps: A-735, 736, 737, 738, 739, Avg: R-772 O i t
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3.0 FOLLOW-UP ACTIONS (CONTl ACTIONS DETAILS E ' Starting an RCP could result in a temporary loss of adequate subcooling , i margin due to collapsing of voids. All RCPs must be secured if ASCM does ; not recover within 2 minutes. j j ' 3.16 lE, at any time while RCPs are available when ALL of the performing this E0P, N0 following conditions exist. RCPs are running, . AND RCPs become available, 6900V Rx Aux Buss Energized ! THEN start at least 1 RCP. ! 2 70*F Subcooling Margin exists. All RCP start permissives are met Compressive Tube to Shell AT is *
< 60*F. Refer to Table 2. -
RCP starting: 1 E RCPs were tripped due to loss l of Subcooling margin, 1 l THEN establish PZR level 1 200" 2 E either OTSG is available, THEN start 1 RCP in each loop, starting the RCP in the loop l with the highest OTSG level first. 1E NO OTSG is available, THEN start 1 RCP. O E0P-02 REV 01 PAGE 21 of 31 VSSV
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. Applicable Carry-over steps: l 3.16 Start at least 1 RCP when available... l O
1 RULE #2, HPI CONTROL I 1 Ensure FULL HPI... l' 2 HPI MUST be throttled to prevent exceeding Pump runout, NDT limit, PTS guidelines... ! 3 HPI MAY be throttled anytime adequate subcooling exists based on l incores. j l 4 MVP recirc valves MUST be open prior to throttling HPI flow < 200 l
- l. gpm/ pump... l 5 HPI Termination Criteria... j i
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l 3.0 FOLLOW-UP ACTIONS (CONT) l () ACTIONS DETAILS 3.17 If at any time, Engineered o IE RBIC is actuated, l Safeguards systems have or THEN bypass actuation, j should have actuated, AND restore RCP seal return and SW ! IHEN ensure ES status cooling to running RCPs. lights are blue for i actuated systems. o IE LPI is actuated, THEN bypass actuation, i AND control LPI: If RCS PRESS > 500 psig, THEN stop both LPI pumps. o IE HPI is actuated, , THEN bypass and control HPI. . i [ RULE #2, HPI CONTROL] f i l l i t 1 T l l i O i I, E0P-02 REV 01 PAGE 23 of 31 VSSV l i i
Applicable Carry-over steps: 3.16 Start at least 1 RCP when available... 3.17 JE at any time, ES has or should have actuated... i i i i e 1 l , I l 1 i l i i a i i, ,. J l 4 i i i ! i i I i ! i 4 i
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l 3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS ) i 3.18 IE OTSG pressure lowered 1 Select each valve closed, l i to 600 psig, AND QB OTSG isolation was ensure valves are closed on - manually initiated, affected OTSG, see table below: t THEN ensure proper ! operation of affected , components. Valve A-0TSG B-0TSG l MBV FWV-30 FWV-29 LLBV FWV-31 FWV-32 ! SUBV FWV-36 FWV-33 Disch FWV-28 FWV-28 ! X-Tie MFWP FWV-14 FWV-15 , Suction ' i MSV-411 MSV-413 : ~ MSIVs - MSV-412 MSV-414 i - 2 Ensure MFWP trips on affected ; OTSG. j o "A" 0TSG, FWP-2A ! o "B" 0TSG, FWP-2B [ l' 3 IE OTSG PRESS contirues to decrease, , THEN do NOT allow EFIC to feed ! the isolated 0TSG: I o Place EFIC control valves in !
- HAND / CLOSED for affected 0TSG
- A-0TSG B-0TSG i
EFV-58 EFV-57 i EFV-56 EFV-55 1 ; I i O ! t E0P-02 REV J1 PAGE 25 of 31 VSSV , r
i l Applicable Carry-over steps: . 3.16 Start at least 1 RCP when available... ! O 3.17 IE at any time, ES has or should have actuated... ! 4 1 RULE #1, LOSS OF SUBC00 LING MARGIN : If adequate subcooling margin is lost, l!!B perform the following: 1 Trip e,LL RCPs immediately... < 2 Ensure FULL HPI... 3 Ensure HPI flows are balanced... l l i i i k i O l I i l O E0P-02 REV 01 PAGE 26 of 31 VSSV
3.0 FOLLOW-UP ACTIONS (CONT 1 ACTIONS DETAILS CAUTION l Tripping ALL RCPs > 2 minutes after losing Adequate SCM could cause core damage. 3.19 E adequate subcooling 1 All RCPs tripped. margin does NOT exist, JJiEH ensure ALL of the 2 BWST suction to MU open: following: o MUV-73 , o MUV-58 o ALL RCPs tripped within : 2 minutes. 3 2 MUPs and associated cooling i o Full HPI flow exists. water pumps operating. I o HPI flow is balanced. , [ RULE #1, LOSS OF SCM] MUV-23 , MUV-24 SN_Q MUV-25 i MUV-26 i GO TO E0P-03, Inadequate t Subcooling Margin, beginning MVP recirc valves closed: O 5 ! l with step 3.1. o MUV-53 o MUV-257 i 6 HPI flow is balanced. l l 3.20 E RC TEMP is increasing o Loss of EFW AND MFW. due to lack of heat transfer, o Natural Circulation can NOT be
- THEN GO TO E0P-04, verified. l Inadequate Heat Transfer, beginning with step 3.1. o No OTSG available.
I 3.21 E RC TEMP is decreasing o Cooldown can NOT be controlled. due to excessive primary to secondary heat o OTSG PRESS decrease can NOT be transfer, controlled. THEN GO TO E0P-05, Excessive Heat Transfer, beginning with step 3.1. O E0P-02 REV 01 PAGE 27 of 31 VSSV l
I i Applicable Carry-over steps: ,
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3.16 Start at least 1 RCP when available... l n 3.17 ff at any time, ES has or should have actuated... . I i i 4 t t ! I 1 ; 4 i j- t I i l I .i ! i L I i I I i i : t l
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3.0 FOLLOW-UP ACTIONS (CONT) () ACTIONS DETAILS 3.22 1E an OTSG tube leak Condenser or MS line radiation exists, monitors have alarmed: THEN GO TO E0P-06, Steam Generator Tube Rupture, Condenser exhaust: RMA-12 beginning with step 3.1. : MS lines: ! o RMG-25 o RMG-27 i o RMG-26 o RMG-28 i 3.23 If unexplained AND o Check for PORV and PZR spray , significant RC pressure valve leakage: decrease exists, , THEN ensure proper o Close RCV-11, PORV Block operation of: o Close RCV-13, PZR Spray Block , RCV-10, PORV o Verify PZR Heaters operation by observing PZR heater KW loading i RCV-14, PZR Spray as indicated at rear of MCB. l i PZR Heaters o IE PORV OR PZR Spray are ! O required to be open, THEN while observing RCS Pressure, - t I i
) o Open RCV-11 !
- AND/0R l 3 o Open RCV-13 !
i d l f i F i l E0P-02 REV 01 PAGE 29 of 31 VSSV
- t Applicable Carry-over steps: !
3.16 Start at least 1 RCP when available... ! 3.17 Jf at any time, ES has or should have actuated... : i i i il , zi - t i t l
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3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS 3.24 E RC leakage exists, o E PORV is NOT required to be JJiEN isolate possible leak open for HPI/PORY cooling, paths. THEN close RCV-II, PORV block valve. 1 Isolate potential leak sources. o Close RCV-13, PZR spray block valve. 2 Observe for indication of leak isolation. o Close letdown cooler inlet valves: 3 Return companents to service if they are MUV-38 eliminated as the MVV-39 source of the leak. MUV-498 o E leak source was not isolated, THEN as time permits, refer to OP-301, Operation of the Reactor Coolant System, section 4.12 for additional guidance. 3.25 E RCS leak > 50 gpm exists, THEN GO TO E0P-06, LOCA Cooldown, beginning with step 3.1. 3.26 GO TO E0P-10, Post-Trip Stabilization, beginning with step 3.1. O E0P-02 REV 01 PAGE 31 of 31 VSSV
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. ISM REV 01 DATE 08/13/93 E0P-03 O INADEQUATE SUBC00 LING MARGIN :
l 1.0 ENTRY CONDITIONS , 1.E in MODES 3 OR 4, AND either of the following conditions exist: o Tsat Monitor indicates inadequate subcooling margin, o SPDS indicates inadequate subcooling margin, THEN use this E0P. - (; . =n .wr ::,- r
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E0P-03 PAGE 1 of 15 ISM
f I Table 1 i
. Tsat Monitor Adequate Subcooling Margin: j RCS Margin
>.1500 psig 30*F s 1500 to 50*F !
> 250 psig i i
1250 to 70*F
> 150 psig ;
s 150 psig SPDS s 200*F N/A 4 i i I i
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O ; i i r I l O E0P-03 REV 01 PAGE 2 of 15 ISM l _- _______a
Rio IMMEDIATE ACTIONS t f ACTIONS DETAILS
*************************+ *************************************************** t I
CAUTION Tripping ALL RCPs > 2 minutes after losing Adequate SCM could cause core damage.
****************************************************************************** j 2.1 JI I 2 minutes have :
elapsed since losing ASCM, l THEN trip ALL RCPs. l t If > 2 minutes have ; elapsed since losing ASCM, : THEN leave 1 RCP running in each loop. I i l f i i e i E0P-03 REV 01 PAGE 3 of 15 ISM i
r RULE #1, LOSS OF SUBC00 LING MARGIN t IE adequate subcooling margin is lost, O THEN perform the following: 1 2 Trip ALL RCPs immediately... Ensure FULL HPI... 3 Ensure HPI flows are balanced... I RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded... 2 Ensure required 0TSG 1evel... ! 3 IE adequate subcooling largin does NOT exist, THEN ensure.0TSG levels are continuously prograssing towards 80 - 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > t 100 psi below desired setpoint... ! RULE #4, PRESSURIZED THERMAL SHOCK : 1 The PTS guidelines MUST be implemented when either of the following } ,1 conditions exist: i o Forced RCS Flow: Tcoid < 380*F AND cooldown rate exceeds T.S. l limit. ' o NQ Forced RCS Flow: RCPs 0FF AND HPI flow exists. 2 PTS guidelines: Ensure minimum adequate subcooling margin is maintained... j l
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O Table 1 Tsat Monitor Adequate Subcooling Margin: RCS Margin
> 1500 psig 30*F j s 1500 to 50*F
> 250 psig {
1 250 to 70*F
> 150 psig j 1 150 psig SPDS l t
i 200*F N/A ! i l h t r i E0P-03 REV 01 PAGE 4 of 15 ISM i
3.0 FOLE0W-UP ACTIONS . i ACTIONS DETAILS 3.1 Notify personnel of plant o SOTA conditions as required. o Plant Operators o SSOD to evaluate plant conditisns for potential entry , into the Emergency Plan. 3.2 Ensure the following: 1 BWST suctions to MU open: i o MUV-73
- o full HPI flow exists. o MUV-58 o HPI flow is balanced. 2 2 MUPs and associated cooling ;
water pumps operating. ; [ RULE #1, LOSS OF SCM] 3 HPI valves open: MUV-23 ;
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MUV-24 MUV-25 i MUV-26 i MVP recirc valves closed: I O 4 o MUV-53 o MUV-257
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5 HPI flow is balanced. 3.3 Ensure OTSG levels are at o Ensure both EFWPs are running and , or trending towards EFW flow is controlled. > 80 - 90% using EFW. [ RULE #3, EFW CONTROL) i E EFW is NOT available, i THEN use MFW. o IF > 500 gpm HPI flow exists, ; AND an OTSG tube leak exists, EM only raise level in the , unaffected 0TSG. ! 1 1
)
i O E0P-03 REV 01 PAGE 5 of 15 ISM I
t RULE #1, LOSS OF SUBC00 LING MARGIN IE adequate subcooling margin is lost, ! THEN perform the following: O 1 2 Trip ALL RCPs immediately... Ensure FULL HPI... 3 Ensure HPI flows are balanced. . . RULE #2, HPI CONTROL 1 Ensure FULL HPI... 2 HPI NUST be throttled to prevent exceeding Pump runout, NDT limit, PTS , guidelines... ; 3 HPI MAY be throttled anytime adequate subcooling exists based on ; incores. ! l 4 MVP recirc valves MUST be open prior to throttling HPI flow < 200 l gpm/ pump... 5 HPI Termination Criteria... , i RULE #4, PRESSURIZED THERMAL SH0CK i 1 The PTS guidelines MUST be implemented when either of the following : conditions exist: o forced RCS Flow: Tcold < 380*F AND cooldown rate exceeds T.S. ! limit. o EQ Forced RCS Flow: RCPs 0FF AND HPI flow exists. l l 2 PTS guidelines: Ensure minimum adequate subcooling margin is i maintained... I O Table 1 Tsat Monitor Adequate Subcooling Margin: RCS Margin
> 1500 psig 30*F ,
s 1500 to 50*F f
> 250 psig l 70*F i 1 250 to
> 150 psig ,
s 150 psig SPDS :
- 1 200*F N/A l
4 O ; E0P-03 REV 01 PAGE 6 of 15 ISM i i y , , m._, _ - - _. _ _ - , - . , , ,
3.0 FOLLOW-UP ACTIONS (CONT) ' ACTIONS DETAILS 3.4 E RCPs were NOT stopped 1 RCP/ loop must remain running until: ' within 2 minutes, ; THEN ensure 1 RCP/ loop o ASCM is restored remains running. QB o LPI flow 21000 gpm in each line. - E a running RCP trips, THEN start the other RCP in that loop. i Note: ; Rule 4, Pressurized Thermal Shock guidelines are applicable. I 3.5 E at any time, Engineered o E RB PRESS 2 30 psig and Safeguards systems have or increasing, - should have actuated, THEN ensure BSP-1A and BSP-1B are , THEN ensure ES status operating with = 1550 gpm flow each, lights are blue for the t actuated systems. o E RBIC is actuated, THEN bypass actuation, i AND restore RCP seal return and SW : O cooling to running RCPs. I o E LPI is actuated, THEN bypass actuation, 3 AND control LPI-I E RCS PRESS > 500 psig THEN stop both LPI pumps. ' E RCS PRESS < 500 psig, .
- AND LPI FLOW < 300 gpm, !
i THEN refer to Enclosure 2 LPI ! Low flow Control. i o E HPI is actuated, i THEN bypass and control HPI. ;
- i
[ RULE #1, LOSS OF SUBC00 LING MARGIN] , [ RULE #2, HPI CONTROL] i
- i
~ O ! i E0P-03 REV 01 PAGE 7 of 15 ISM j l
i Applicable Carry-over steps: : 3.5 IE ES has or should have actuated... O 1 RULE #4, PRESSURIZED THERMAL SHOCK 1 The PTS guidelines MSI be implemented when either of the following < conditions exist: o Forced RCS Flow: Tcold < 380*F AND cooldown rate exceeds T.S. > limit. o @ Forced RCS Flow: RCPs Qff AND HPI flow exists.
?. P'iS guidelines: Ensure minimum adequate subcooling margin is maintained... !
Table 1 Tsat Monitor Adequate Subcooling Margin: ! RCS Margin t
> 1500 psig 30*F s 1500 to 50*F
> 250 psig s 250 to 70*F l
> 150 psig s 150 psig SPDS O s 200*F N/A <
1 i I I d O ; s E0P-03 REV 01 PAGE 8 of 15 ISM j l
l 3.0 FOLLOW-UP ACTIONS (CONT) () ACTIONS DETAILS 3.6 If LPI flow is 21000 gpm in each injection line, IBEN : GO TO E0P-08, LOCA Cooldown, beginning with step 3.1. 3.7 IE RCS leak exists, o IE PORV is NOT required to be ' THEN isolate possible leak open for HPI/PORV cooling, paths. THEN close RCV-11, PORV block valve. 1 Isolate pot'ential leak sources. o Close RCV-13, PZR spray block valve. 2 Observe for indication of leak isolation, o Ensure DHV-3 is closed. 3 Return components to o Close letdown cooler inlet > service if they are valves: eliminated as the .1 source of the leak. MUV-38 MUV-39 MUV-498 4 3.8 IE incores indicate 1 20*F Tsat mor.itor or SPDS indicate 1 20*F superheat, superheat. ' THEN GO TO E0P-07, Inadequate Core Cooling, beginning with step i 3.1. t 3.9 IE RC TEMP is increasing Any of the following exist: due to lack of heat transfer, o Loss of EFW AND MFW, THEN o No OTSG a.ailable, GO TO E0P-04, Inadequate Heat i Transfer, beginning with stcp o Incore temperatures rising. 3.1. [ E0P-03 REV 01 PAGE 9 of 15 ISM
Applicable Carry-over steps: 3.5 IE ES has or should have actuated... RULE #4, PRESSURIZED THERMAL SH0CK I 1 The PTS guidelines MUST be implemented when either of the following conditions exist: : o Forced RCS Flow: Tcoid < 380*F AND cooldown rate exceeds T.S. ! limit. : o HQ Forced RCS Flow: RCPs 0FF AND HPI flow exists, i 2 PTS guidelines: Ensure minimum adequate subcooling margin is : maintained...
- Table 1 Tsat Monitor Adequate Subcooling Margin:
i RCS Margin
> 1500 psig 30*F 5 1500 to 50*F
> 250 psig s 250 to 70*F ;
> 150 psig t 1 150 psig SPDS
$ 200*F N/A l
l 6 i O E0P-03 REV 01 PAGE 10 of 15 ISM i
3.0 FOLLOW-UP ACTIONS (CONT) , t () ACTIONS DETAILS 3.10 if RC TEMP is decreasing o Cooldown can NOT be controlled. ' due to excessive primary to secondary heat o OTSG PRESS decrease can NOT be transfer, controlled. IEN , GO TO E0P-05, Excessive Heat Transfer, beginning with step 3.1. 3.11 IE OTSG tube leak exists, Condenser or MS line radiation THEN monitors have alarmed: GO TO E0P-06, Steam Generator Condenser exhaust monitor: RMA-12 Tube Rupture, beginning with i step 3.1. ' MS line monitors: o RMG-25 o RMG-27 o RMG-26 o RMG-28 : () 3.12 ___ If adequate subcooling margin has NOT been Refer to Table 1, Adequate Subcooling Margin. restored, THEN GO TO E0P-08, LOCA Cooldown, beginning with step 3.1. 3.13 IE N0 OTSG is available OTSG heat transfer is available IF all for heat transfer, 3 of the following conditions exist, THEN MFW or EFW or AFW available : GO TO E0P-08, LOCA Cooldown, beginning with step 3.1. TBVs or ADVs available OTSG integrity exists L O t E0P-03 REV 01 PAGE 11 of 15 ISM
Applicable Carry-over steps: 3.5 JF ES has or should have actuated... RULE #4, PRESSURIZED THERMAL SH0CK 1 The PTS guidelines MUST be implemented when either of the following conditions exist: , 4 o Forced RCS Flow: Teoid < 380*F AND cooldown rate exceeds T.S. i 4 limit. o F_Q Forced RCS Flow: RCPs 0FF AND HPI flow exists. 2 PTS guidelines: Ensure minimum adequate subcooling margin is maintained... Table 1 Tsat Monitor Adequate Subcooling Margin: ' i RCS Margin
> 1500 psig 30*F .
s 1500 to 50*F ;
> 250 psig '
s 250 to 70*F
> 150 psig 1 150 psig SPDS s 200*F N/A Table 2 t OTSG Tube to Shell AT Limits: }
Tensile AT Limit: Avg Tshell - Icold 5 100*F Compressive AT Limit: Tnot - Avg Tsne11 1 60*F "A" 0TSG shell Temps: A-730, 731, 732, 733, 734, Avg: R-771 ,
"B" 0TS6 shell Temps: A-735, 736, 737, 738, 739, Avg: R-772 r
i O E0P-03 REV 01 PAGE 12 of 15 ISM
3.0 FOLLOW-UP ACTIONS (CONTl ACTIONS DETAILS l PLANT STATUS: ADEQUATE SUBC00 LING MARGIN EXISTS I OTSG HEAT TRANSFER EXISTS UO.E l Starting an RCP could result in a temporary loss of adequate subcooling ! margin due to collapsing of voids. All RCPs must be secured if ASCM does i not recover within 2 minutes. ; 3.14 H , at any time while RCPs are available when ALL of the performing this E0P, N0 following conditions exist: RCPs are running, AND RCPs become available, 6900V Rx Aux Bus is energized THEN start at least 1 RCP. 2 70*F Subcooling Margin exists All RCP start permissives are : met ! Compressive Tube to Shell AT is !
< 60'F. Refer to Table 2.
RCP starting: 1 Establish PZR level 2 200" ; 2 E either OTSG is available, i THEN start 1 RCP in each loop, i starting the RCP in the loop ) with the highest OTSG level first. ; E NO OTSG is available, ) THEN start 1 RCP. i O E0P-03 REV 01 PAGE 13 of 15 ISM I
Applicable Carry-over steps: , 3.5 If ES has or should have actuated... O 3.14 Start at least 1 RCP when available... j RULE #4, PRESSURIZED THERMAL SH0CK 1 The PTS guidelines MUST be implemented when either of the following i conditions exist: . o Forced RCS Flow: Tcons < 380*F AND cooldown rate exceeds T.S. ' limit. _ o HQ Forced RCS Flow: RCPs 0FF AND HPI flow exists. 2 PTS guidelines: Ensure minimum adequate subcooling margin is l maintained... Table 1 Tsat Monitor Adequate Subcooling Margin: l RCS Margin !
> 1500 psig 30*F ,
s 1500 to 50*F ;
> 250 psig ;
< 250 to 70*F i 5 150 psig 1 150 psig SPDS 1 s 200*F N/A f i
l ^ i
-t l
F t I 4 I I I i e I E0P-03 REV 01 PAGE 14 of 15 ISM [ i.
3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAllS 3.1S E this E0P was entered while responding to a reactor trip, THEN GO TO E0P-02, Vital System Status Verification, beginning with step 3.1. 3.16 E RCS leak exists, AND leak rate is > 50 gpm, IDEE GO TO E0P-08, LOCA Cooldown, at step 3.1. 3.17 GO TO E0P-10, Post-Trip Stabilization, beginning with step 3.1. O E0P-03 REV 01 PAGE 15 of 15 ISM
I
-A . IHT REV 01 DATE 08/13/93 E0P-04 O INADEQUATE HEAT TRANSFER ;
1.0 ENTRY CONDITIONS 1E in MODES 3 OR 4, AND ANY of the following occur: o loss of Main AND Emergency Feedwater, o Nat Circ can not be verified, , o No OTSG available, o Unacceptable increase in RC TEMP, THEN use this E0P. . 2.0 IMMEDIATE ACTIONS o There are NO Immediate Actions for this E0P.
? 'iY:C'_: . 3, p
; , , z " . . m .,,,,
y, o mq
! ,g g
", nn OiJ!,ty/ k; ;
p' % 2 c # = '~~_
~* %:sw~.
}
~[ f s t w: cm y This Procedure Adpresses Safety Related Components )
Approved by MNP0 [Sh AWhrf Date ? -30 ,13 v E0P-04 PAGE I of 39 IHT 1 l . 1
i Table 1 i Tsat Monitor Adequate Subcooling Margin: RCS Margin
> 1500 psig 30*F ;
s 1500 to 50*F
> 250 psig ,
s 250 to 70*F
> 150 psig 1 150 psig SPDS 1 200*F N/A i
1 j) i i e O l l i l l I i
.I
.(
E0P-04 REV 01 PAGE 2 of 39 IHT s
3.0 FOLLOW-UP ACTIONS ! () ACTIONS DETAILS , 3.1 Notify personnel of plant S0TA conditions as required. Plant Operators , 1 SS00 to evaluate plant ' conditions for potential entry into the Emergency Plan. i 3.2 If at any time RC PRESS o If ASCM does NOT exist,
> 2400 psig, THEN open PORV to reduce RC PRESS to i THEN use the PORV to = 1600 psig reduce RC PRESS based on subcooli.g margin. o if ASCM exists, THEN open PORV to reduce RC PRESS Refer to table 1. until either:
o RC PRESS > ASCM curv6 OB o RC PRESS = 1600 psig , If the PORV is NOT High Point Vent valves: avail able, THEN energize and use the PZR A HOT LEG B HOT LEG High Point Vents. ! DPDP-8A DPDP-5A DPDP-5B t SW #13 SW #1 SW #1 RCV-159 RCV-157 RCV-163 RCV-160 RCV-158 RCV-164 l 3.3 WHEN either OTSG PRESS is Depress "< 725 PSI OTSG PRESS EFIC between 725 and 600 psig, ACT. BYPASS" pushbuttons: THEN bypass EFIC MS and MFW isolation actuation. Channel A Continue in this E0P. Channel B i Channel C ; Channel D l E0P-04 REV 01 PAGE 3 of 39 IHT t
Applicable Carry-over steps: 3.2 Control RC Pressure < 2400# using PORV... 3.3 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... O O E0P-04 REV 01 PAGE 4 of 39 IHT
3.0 FOLLOW-UP ACTIONS (CONTl ACTIONS DETAILS 3.4 E 21 OTSG is available OTSG heat transfer is available if the for heat transfer, following 3 conditions exist: THEN: MFW or EFW are available GO T0 step 3.19 of this E0P. TBVs or ADVs are available OTSG integrity exists NOTE; Do NOT delay initiating HPI / PORV cooling while establishing AFW. 3.S E entry into this E0P is 1 Notify plant operator to OPEN: from loss of MFW and EFW, THEN prepare AFW for o FWV-222, 119' IB, A OTSG iso. opera. ion. o FWV-223, 119' IB, B OTSG iso. Continue on in this E0P. 2 WHEN AFW isolation valves are open, THEN GO T0 step 3.16 in this E0P. O 3.6 E HPI is NOT available, ' THEN . i GO T0 step 3.48 of this E0P. j i i l i O l E0P-04 REV 01 PAGE 5 of 39 IHT , i
Applicable Carry-over steps: 3.2 Control RC Pressure < 2400# using PORV... O 3.3 3.5 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... When AFW is available, GO T0 step 3.16... RULE #2, HPI CONTROL 1 Ensure FULL HPI... 2 HPI MUST be throttled to prevent exceeding Pump runout, NDT limit, PTS guidelines... 3 HPI MAY be throttled anytime adequate subcooling exists based on incores. l 4 MVP recirc valves MUST be open prior to throttling HPI flow < 200 gpm/ pump... 5 HPI Termination Criteria... RULE #4, PRESSURIZED THERMAL SH0CK 1 The PTS guidelines MUST be implemer,ted when either of the following conditions exist: o forced RCS Flow: Tcold < 380*F AND cooldown rate exceeds T.S. limit. o ILO Forced RCS Flow: RCPs 0FF AND HPI flow exists. 2 PTS guidelines: Casure minimum adequate subcooling margin is maintained... O O E0P-04 REV 01 PAGE 6 of 39 IHT
i 3.0 FOLLOW-UP ACTIONS (CONT) () ACTIONS DETAILS STATUS: o HPI/PORV cooling is required due to lack of OTSG heat transfer.. ; o Continuous efforts should be in progress to restore OTSG heat transfer. , o PTS guidelines per RULE #4 are applicable if no RCPs are running and HPI flow exists. j 3.7 Establish FULL HPI. 1 Open MVP suction valves from BWST: [ RULE #2, HPI CONTROL] o MUV-73 o MUV-58 2 Ensure 2 MUPs and their cooling water pumps are operating. 3 Open all 4 HPI valves: MUV-23 MUV-24 MUV-25 MUV-26 {
) 4 Close MVP retirc valves: -
o MUV-53 o MUV-257 i 5 Balance HPI flow: i o Close MUV-27, Normal MU iso. l o Balance HPI flow between ! injection lines. t s i I i i f E0P-04 REV 01 PAGE 7 of 39 IHT i
i l Applicable Carry-over steps- t 3.2 Control RC Pressure < 2400# using PORV... I O _ 3.3 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... 3.5 When AFW is available, GO T0 step 3.16... l l RULE #2, HPI CONTROL 1 Ensure FULL HPI... i 2 HPI MUST be throttled to prevent exceeding Pump runout, NDT limit, PTS l guidelines... : 3 HPI MAY be throttled anytime adequate subcooling exists based on i incores. i l 4 MVP recire valves MUST be open prior to throttling HPI flow < 200 ! I gpm/ pump... 5 HPI Termination Criteria... i I l RULE #4, PRESSURIZED THERMAL SHOCK 1 The PTS guidelines MUST be implemented when either of the following . , conditions exist: I o Forced RCS Flow: T:old < 380*F AND cooldown rate exceeds T.S. I limit. o F_Q Forced RCS Flow: RCPs 0FF AND HPI flow exists. 2 PTS guidelines: Ensure minimum adequate subcooling margin is ! maintained... j !O [
- i i
i l i i i t I O 4 E0P-04 REV 01 PAGE 8 of 39 IHT 1 1 f
3.0 FOLLOW-UP ACTIONS (CONTl I ACTIO_N_S DETAILS e 3.8 Open the PORV as directed: The PORV should be left open until HPI can be stopped. . E only 1 MVP is available, [ RULE #2, HPI CONTROL] T!iDi open the PORV when HPl flow is established. E FULL HPI flow exists, RC pressure limits: IHf!f open the PORV prior to exceeding RC pressure 2400 psig , limits.
?TS Guidelines, Refer to [ RULE :
#4, PRESSURIZED THERMAL SHOCK] i NDT limit, Refer to Figure 1, '
C/D curves. , 1000 psig with an isolated tube i ruptured OTSG ; E PORV is NOT available, High Point Vent valves: ! THEN energize and open all ! High Point vent valves: PZR A HOT LEG B HOT LEG DPDP-8A DPDP-5A DPDP-5B SW #13 SW #1 SW #1 RCV-159 RCV-157 RCV-163 l _RCV-160 _RCV-158 _RCV-164
?
3.9 Turn off ALL PZR heaters. Select PZR heater banks to "0FF": Bank A 0FF l Bank B 0FF : Bank C 0FF ' Bank D OFF , Bank E OFF ! 3.10 E RCPs are running, RCP-1B should be left operating to i THEN reduce operating RCPs provide PZR spray. . to 1. ! O : E0P-04 REV 01 PAGE 9 of 39 IHT
j Applicable Carry-over steps: . t 3.2 Control RC Pressure < 2400# using PORV... O 3.3 3.5 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... When AFW is available, GO T0 step 3.16... RULE #1, LOSS OF SUBC00 LING MARGIN , if adequate subcooling margin is lost, IE[H perform the following: i 1 Trip ALL RCPs immediately... ! 2 Ensure FULL HPI... 3 Ensure HPI flows are balanced... Table 1 Tsat Monitor Adequate Subcooling Margin: RCS Margin r
> 1500 psiq 30*F i 1500 to 50*F
> 250 psig
< 250 to 70*F !
5 150 psig i 1 150 psig SPDS i 200*F N/A (} Table 2, OTSG Tube to Shell AT Limits: ; Tensile AT Limit: Avg Tsnen - Tcou s 100*F [ Compressive AT Limit: Tnot - Avg Tsnen 1 60*F ! i "A" OTSG shell Temps: A-730, 731, 732, 733, 734, Avg: R-771 . 4 "B" 0TSG shell Temps: A-735, 736, 731, 738, 739, Avg: R-772 i 1 t l D [ r E0P-04 REV 01 PAGE 10 of 39 IHT
.l 3.0 FOLLOW-UP ACTIONS (CONT)
ACTIONS DETAILS i CAUTION Tripping ALL RCPs > 2 minutes after losing Adequate SCM could cause core ! damage.
****************************************************************************** j 3.11 E at any time, adequate o Refer to Table 1 !
subcooling margin can NOT , be maintained while [ RULE #1, LOSS OF ASCM] i HP1/PORV cooling is in ; progress, i THEN stop RCPs, AND continue in this E0P. r HOTE ' Starting an RCP could result in a temporary loss of adequate subcooling margin due to collapsing of voids. All RCPs must be secured if ASCM does l not recover within 2 minutes. ! RCPs are available when ALL of the O 3.12 E , at any time while performing this E0P, N0 RCPs are running, following conditions exist: ; i AND RCPs become available, 6900V Rx Aux Bus is energized j THEN start at least 1 RCP. > 70*F subcooling margin : All RCP start permissives are j met ! Compressive Tube to Shell AT is
< 60*F. Refer to Table 2.
RCP starting: l 1 E RCPs were tripped due to loss , of Subcooling margin, : THEN establish PZR level > 200" ! 2 E either OTSG is available, , THEN start 1 RCP in each loop, l starting the RCP in the loop ' with the highest OTSG level l first. ! i E NO OTSG is available, l THEN start 1 RCP. O ! l E0P-04 REV 01 PAGE 11 of 39 IHT i
I Applicable Carry-over steps:
= t 3.2 Control RC Pressure < 2400# using PORV....
O 3.3 3.5 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... When AFW is available, GO 10 step 3.16.. . 3.11 lE ASCM is lost, trip all RCPs, stay in this E0P...
-t l
3.12 Start at least 1 RCP when available... l Table 1 Tsat Monitor Adequate Subcooling Margin: l RCS Margin !
> 1500 psig 30'F ,
s 1500 to 50*F ,
> 250 psig s 250 to 70*F ;
> 150 psig i 150 psig SPDS :
1 200*F N/A l l . i
}
i l E0P-04 REV 01 PAGE 12 of 39 IHT { I
h 3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS [) 3.13 WHEN RC PRESS 1 1700 psig, Bypass HPI actuation: lH[H bypass HPI. , CHAN A CHAN B Continue in this E0P. RCl RCl RC2 RC2 RC3 RC3 P 3.14 Isolate RB sump and WG o Place BOTH RB sump pumps in header. Pull-to-Lock: o WDP-2A o WDP-28 o Isolate the RB sump discharge line by closing: O o WDV-3 o WDV-4 o Isolate RCDT from WG by closing: o WDV-405 o WDV-406 0 . E0P-04 REV 01 PAGE 13 of 39 IHT
i i Applicable Carry-over steps: 3.2 Control RC Pressure < 2400# using PORV... 3.3 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... 3.5 When AFW is available, GO T0 step 3.16... 3.11.lf ASCM is lost, trip all RCPs, stay in this E0P... 3.12 Start at least 1 RCP when available... . 3.13 Bypass HPI Actuation at 1700#... Table 1 Tsat Monitor Adequate Subcooling Margin: RCS Margin
> 1500 psig 30*F 5 1500 to 50*F
> 250 psig s 250 to 70*F
> 150 psig s 150 psig SPOS s 200*F N/A
. O i 1
~
l 0 l E0P-04 REV 01 PAGE 14 of 39 IHT 1
3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS 3.15 Establish r4ximum RB o Ensure Emergency duty SW Pump cooling: running: o SWP-1A running M o SWP-1B running o Ensure Emergency duty RW Pump running: o RWP-2A running M o RWP-28 running o Start ALL available RB cooling units running in slow sped: AHF-1A slow speed AHF-lc slow speed AHF-1B slow speed o Align SW cooling to RB cooling units: 1 Ensure Closed: SWV-152 SWV-151 SWV-355 2 Ensure open: SWV-353 SWV-354 i O E0P-04 REV 01 PAGE 15 of 39 IHT
1 Applicable Carry-over steps: ! 3.2 Control RC Pressure < 2400# using PORV... - 3.3 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... 3.5 When AFW is available, GO T0 step 3.16... : I 3.11 lf ASCM is lost, trip all RCPs, stay in this E0P... 3.12 Start at least 1 RCP when available... f 3.13 Bypass HPI Actuation at 1700#... l l Table 1 ' Tsat Monitor Adequate Subcooling Margin: RCS Margin l
> 1500 psig 30*F !
5 1500 to 50*F ,
> 250 psig i 1
1 250 to 70*F ,
> 150 psig j s 150 psig SPDS ;
I 1 200*F N/A i i O ! i i i 1 1 I l O , E0P-04 REV 01 PAGE 16 of 39 IHT I
I s 3.0 FOLLOW-UP ACTIONS (CONT) () ACTIONS DETAILS 3.16 WHEN AFW is available, AFW is available when isolation valves - 181H establish AFW. FWV-222 and FWV-223 are open. Continue on in this E0P. 1 IE OTSG level is < 6", i IHEN refer to Enclosure 3, Dry l OTSG Recovery. 2 Start FWP-7. 4 Control AFW flow using: 3 o FWV-216, AFW to A OTSG [ o FWV-217, AFW to B OTSG 4 Maintain total indicated AFW flow s 590 gpm to prevent pump i runout. ; t 3.17 IE MFW is NOT available, Ensure closed: THEN prevent inadvertent MFWBP flow to Dry OTSG A O B depressurized OTSGs ! Main BV FWV-30 FWV-29 Lo Load BV FWV-31 FWV-32 l Lo Load CV FWV-37 FWV-38 l SUCV FWV-40 FWV-39 SUBV FWV-36 FWV-33 3.18 IE restoration of OTSG Restoration of OTSG heat transfer is heat transfer is NOT expected IF all 3 of the following expected, conditions exist, THEN FW or EFW or AFW are available GO TO E0P-08, LOCA Cooldown, TBVs or ADVs are available beginning with step 3.1. OTSG integrity exists , i E0P-04 REV 01 PAGE 17 of 39 IHT I i
I I Applicable Carry-over steps: 3.2 Control RC Pressure < 2400# using PORV... ' O 3.3 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... 3.11 IF ASCM is lost, trip all RCPs, stay in this E0P.. . 3.13 Bypass HPI Actuation at 1700#... l Table 1 Tsat Monitor Adequate Subcooling Margin: l l I RCS Margin ,
> 1500 psig 30*F s 1500 to 50*F
> 250 psig 1 250 to 70*F l
> 150 psig 1 150 psig SPDS 5 200*F N/A ,
i Table 2, OTSG Tube to Shell AT Limits: Tensile AT Limit: Avg Tsheil - Teoid s 100*F O Compressive AT Limit: That - Avg Tsneit 5 60*F "A" 0TSG shell Temps: A-730, 731, 732, 733, 734, Avg: R-771 "B" 0TSG shell Temps: A-735, 736, 737, 738, 739, Avg: R-772 , i i i i l l
. i E0P-04 REV 01 PAGE 18 of 39 IHT i l
I
3.0 FOLLOW-UP ACTIONS (CONTl ACTIONS DETAILS M i Starting an RCP could result in a temporary loss of adequate subcooling j margin due to collapsing of voids. All RCPs must be secured if ASCM does i not recover within 2 minutes. 3.19 H , at any time while RCPs are available when ALL of the i performing this E0P, N0 following conditions exist: ; RCPs are running, > AND RCPs become available, 6900V Rx Aux Bus is energized : THEN start at least 1 RCP. ; 2 70*F Subcooling Margin exists All RCP start permissives are ; met i Compressive Tube to Shell AT is [
< 60*F. Refer to Table 2. ,
j RCP starting: l 3 i p' 1 E RCPs were tripped due to loss
- v of Subcooling margin, ,
- THEN establish PZR level 2 200" l
! i I 2 E either OTSG is available, t ! THEN start 1 RCP in each loop, l 3 starting the RCP in the loop ; with the highest OTSG level first. l l
; E NO OTSG is available, l THEN start 1 RCP.
I i d , O ! E0P-04 REV 01 PAGE 19 of 39 IHT t
i Applicable Carry-over steps:
- 3.2 Control RC Pressure < 2400# using PORV... !
3.3 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... ! u 3.13 Bypass HPI Actuation at 1700#... 3.19 Start at least 1 RCP when available... RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded... ' 2 Ensure required 0TSG level... 3 If adequate subcooling margin does NOT exist, , THEN ensure OTSG levels are continuously progressing towards 80 - r 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > ; 100 psi below desired setpoint... j I Table 1, Tsat Monitor Adequate Subcooling Margin: t RCS Margin l
> 1500 psig 30*F 1 1500 to 50*F l
> 250 psig s 250 to 70*F ;
> 150 psig s 150 psig SPDS i
s 200*F N/A Table 3 Required 0TSG Levels.: : Inadequate Adequate Subcooling Margin , Subcooling ; Margin No RCPs RCPs 80 - 90% 60 - 70% LLL ! l Table 4 OTSG pressure for establishing natural circulation heat transfer l Incore - 50*F - 100*F Temp Psat Psat 600*F 1035 685 550*F 685 410 l I 500*F 410 235 450*F 235 120 ; 400*F 120 55 ! O i E0P-04 REV 01 PAGE 20 of 39 IHT
- . .. . . = . ..
t l 3.0 FOLLOW-UP ACTIONS (CONTl j i ACTIONS DETAILS NOTE The following steps attempt to establish primary to secondary heat transfer. , t 3.20 Start raising OTSGs to the H OTSG level is < 6", , required level. THEN refer to Enclosure 3, Dry OTSG ; Recovery. ! , WHEN at least 1 OTSG is 2 6", Refer to Table 3 l THEN continue in this E0P. [ RULE #3, EFW CONTROL] 3.21 E OTSG heat transfer has OTSG heat transfer exists if feeding been established, OR steaming causes a decrease in i THEN incore temperatures. GO T0 step 3.41 of this E0P. l 3.22 Establish and maintain Use TBVs or ADVs. 4 OTSG Ts t 40 - 60*F below incore temperature until Refer to Table 4 heat transfer is established. j 3.23 E OTSG heat transfer has 0TSG heat transfer exists if feeding been established, OR steaming causes a decrease in THEN incore temperatures. GO T0 step 3.41 of this E0P. 3.24 E adequate subcooling o Refer to Table 1. . margin does NOT exist, THEN GO T0 step 3.31 of this E0P. j l 1
- O 2 E0P-04 REV 01 PAGE 21 of 39 IHT
Applicable Carry-over steps: 3.2 Control RC Pressure < 2400# using PORV... [\~-'\ 3.3 Bypass EFIC lsolation actuation when OTSG Press 725 - 600#... 3.13 Bypass HPI Actuation at 1700#... 3.19 Start at least 1 RCP when available... RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded... 2 Ensure required GTSG level... 3 lE adequate subcooling margin does NOT exist, THEN ensure OTSG levels are continuously progressing towards 80 - 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > 100 psi below desired setpoint... Table 1 Tsat Monitor Adequate Subcooling Margin: RCS Margin
> 1500 psig 30*F s 1500 to 50*F
> 250 psig
$ 250 to 70*F O > 150 psig s 150 psig SPDS s 200*F N/A Table 4 OTSG pressure for establishing natural circulation heat transfer Incore - 50*F - 100*F Temp Psat Psat 600*F 1035 685 550*F 685 410 500*F 410 235 450*F 235 120 400*F 120 55 O
E0P-04 REV 01 PACE 22 of 39 IHT
. ___ _ - - _ _ ~
i 3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS 3.25 Vent both hot legs. 1 Establish stable or slightly , increasing RC PRESS using MU or HPI flow. 2 Energize and open hot leg high point vent valves. A HOT LEG B HOT LEG DPDP-5A DPDP-5B SW #1 SW #1 RCV-157 RCV-163 RCV-158 RCV-164 3 Maintain stable or slightly increasing RC PRESS using MU or HPI flow. JF RC PRESS can NOT be maintained, i THEN close the hot leg high O point vents prior to losing adequate subcooling margin. 3.26 Lower and maintain OTSG Use TBVs or ADVs. ' Tut 90 - 110*F below incore temperature until Refer to Table 4. heat transfer is established. OTSG heat transfer exists if feeding OR steaming causes a decrease in , incore temperatures. 3.27 Raise OTSG levels to [ RULE #3, EFW CONTROL] 80 - 90%. O , E0P-04 REV 01 PAGE 23 of 39 IHT
Applicable Carry-over steps: , 3.2 Control RC Fressure < 2400# using PORV... , O V 3.3 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#,.. 3.13 Bypass HPI Actuation at 1700#...
-l 3.19 Start at least 1 RCP when available... '
Table 1 i Tsat Monitor Adequate Subcooling Margin: l t RCS Margin ;
> 1500 psig 30*F !
$ 1500 to 50*F ,
> 250 psig ,
1 250 to 70*F
> 150 psig 5 150 psig SPDS
- 5 200*F N/A 1
O l I I 4 O E0P-04 REV 01 PAGE 24 of 39 IHT
i 3.0 FOLLOW-UP ACTIONS (CONT)
/~'T ACTIONS DETAILS V
3.28 Close hot leg high point Ensure closed: i A HOT LEG B HOT LEG i RCV-157 RCV-163 RCV-158 RCV-164 i 3.29 1[ heat transfer has been OTSG heat transfer exists if feeding established to at least 1 OR steaming causes a decrease in OTSG, incore temperatures. IBEN GO T0 step 3.41 in this E0P. 3.30 G0 10 step 3.7 in this E0P Efforts to establish OTSG heat to establish HPI/PORV transfer have been unsuccessful, cooling. O 5 3.31 IE RCPs are NOT available RCPs are available for bumping if both for bumping, of the following conditions exist: THEN o RCP power is available, GO T0 step 3.7 in this E0P to establish HPI/PORV cooling. o All RCP start permissives are met. L I O E0P-04 REV 01 PAGE 25 of 39 IHT
l i Applicable Carry-over steps: i
- i 3.2 Control RC Pressure < 2400# using PORV... l Bypass EFIC Isolation actuation when OTSG Press 725 - 600#...
Ot 3.3 3.13 Bypass HPI Actuation at 1700#... i 3.19 Start at least 1 RCP when available... Table 1 Tsat Monitor Adequate Subcooling Margin: l RCS Margin
> 1500 psig 30*F 1 1500 to 50*F t
> 250 psig l
< 250 to 70*F !
5 150 psig i s 150 psig SPDS : s 200*F N/A Table 4 : 0TSG pressure for establishing ! natural circulation heat transfer l O Incore Terrp
- 50*F - 100*F !
i Psat Psat l 600*F 1035 685 550*F 685 410 ! 500*F 410 235 450*F 235 120 400*F 120 55 t O E0P-04 REV 01 PAGE 26 of 39 IHT
. _ . , _ _ i
3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS ( 3.32 Bump 1 RCP. 1 Ensure PORY is closed 2 Bump RCP in loop with highest OTSG level first. 3.33 E OTSG heat transfer OTSG heat transfer exists if feeding exists after allowing RC OR steaming causes a decrease in Pressure to stabilize, incore temperatures. THEN GO T0 step 3.41 in this E0P. 3.34 Bump remaintag available Repeat steps 3.32 and 3.33 for the RCPs allowing RC Pressure remaining available RCPs: to stabilize between bumps. RCP-1A RCP-1B RCP-1C RCP-ID O 3.35 E OTSG heat transfer is OTSG heat transfer exists if feeding established, OR steaming causes a decrease in THEN incore temperatures. GO T0 step 3.41 in this E0P. 3.36 Lower and maintain OTSG Use TBVs or ADVs. Tut 90 - 110 F below incore temperature until Refer to Table 4 OTSG heat transfer is established. O E0P-04 REV 01 PAGE 27 of 39 IHT
t I
~
Applicab'ie Carry-over steps: , t 3.2 Control RC Pressure < 2400# using PORV... j O 3.3 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... 3.13 Bypass HPI Actuation at 1700#... 3.19 Start at least 1 RCP when available... l l, Table 1 l Tsat Monitor Adequate Subcooling Margin: ! t RCS Margin
> 1500 psig 30*F
< 1500 to 50*F 5 250 psig l
5 250 to- 70*F :
> 150-psig l 5 150 psig SPDS :
. s 200*F N/A I
\
i i I i l l t i i i [ t Y i l i O i i E0P-04 REV 01 PAGE 28 of 39 IHT - i
f 3.0 FOLLOW-UP ACTIONS (CONT) i () ACTIONS DETAILS 3.37 Bump 1 RCP. 1 Ensure PORV is closed. 2 Bump RCP in loop with highest OTSG level. I 3.38 lE OTSG heat transfer OTSG heat transfer exists if feeding exists after allowing RC OR steaming causes a decrease in Pressure to stabilize, incore temperatures. THEN GO T0 step 3.41 in this E0P.
)
3.39 Bump remaining available Repeat steps 3.37 and 3.38 for the - RCPs allowing RC Pressure remaining available RCPs: to stabilize between bumps. RCP-1A RCP 1.8 RCP-lC RCP-ID O 3.40 GO T0 step 3.7 in this E0P to establish HPI/PORV cooling. 4 l I I O E0P-04 REV 01 PAGE 29 of 39 IHT i
i 1 Applicable Carry-over steps: 3.2 Control RC Pressure < 2400# using PORV... O 3.3 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... 3.13 Bypass HPI Actuation at 1700#... 3.19 Start at least 1 RCP when available... ! RULE #2, HPI CONTROL 1 Ensure FULL HPI... 2 HPI MUST be throttled to prevent exceeding Pump runout, NOT limit, PTS ' guidelines... ' 3 HPI MAY be throttled anytime adequate subcooling exists based on incores. : l 4 MVP recirc valves MUST be open prior to throttling HPI flow < 200 l . gpm/ pump... ! 5 HPI Termination Criteria... ' Table 1 i Tsat Monitor Adequate Subcooling Margin: l RCS Margin i
> 1500 psig 30*F i 1500 to 50'F ,
> 250 psig :
$ 250 to 70*F O > 150 psig i 150 psig SPDS
~ s 200*F N/A ; I i l l l ( E0P-04 REV 01 PAGE 30 of 39 IHT
i r 3.0 FOLLOW-UP ACTIONS (CONT) () ACTIONS DETAllS STATUS: ; OTSG heat transfer has been restored. At least one OTSG level is 1 6". RCPs are running if available. NOTE Performance of the next step may require prompt resetting of HPI , bistables to prevent upset to RC inventory balance. l t 3.41 1E HPI/PORY cooling is in 1 Ensure letdown flow exists. l progress, THEN stop HPl/PORV If letdown flow does NOT exist, , cooling. THEN refer to Enclosure 4, RC ' Letdown recovery. [ RULE #2, HPI CONTROL] j 2 Ensure MUV-27 is open and normal makeup flow exists. l 3 Open MU recirc valves. I o MUV-53 l ('~ s o MUV-257 l 4 Close the PORV, RCV-10. 5 Stop HPI. 6 Maintain ASCM by balancing MU and Letdown flow rates. 7 Stabilize RC TEMP by steaming and feeding available OTSGs. 3.42 1E a PZR steam bubble does 1 Turn on all PZR heaters, cycling NOT exist, them as required to maintain s THEN start heating the PZR 100*F/hr heatup rate. to Tsat for the desired RC Pressure. 2 ___ WHEN PZR TEMP is Tsat for desired RC PRESS, Continue in this E0P THEN establish a PZR bubble by lowering level to 80 - 120" I E0P-04 REV 01 PAGE 31 of 39 IHT l l
i Applicable Carry-over steps: [
^
3.2 Control RC Pressure < 2400# using PORV... O 3.3 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... 3.13 Bypass HPI Actuation at 1700#... 3.19 Start at least 1 RCP when available... Table 1 Tsat Monitor Adequate Subcooling Margin: RCS Margin ,
> 1500 psig 30*F ;
5 1500 to 50*F !
> 250 psig l 5 250 to 70*F
> 150 psig :
1 150 psig SPDS ! 1 200*F N/A i O i l, l l l O E0P-04 REV 01 PAGE 32 of 39 IHT i
~
3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS i 3.43 E only 1 RCP is running, ' , A1Q additional RCPs are
- available, ;
THEN start one RCP in the ' opposite loop. l t i 3.44 E an OTSG tube leak Condenser or MS line radiation i
=
exists, monitors have alar:ned-IHEffi GO TO E0P-06, Steam i Generator Tube Rupture, Condenser exhaust monitor: RMA-12 ; beginning with step 3.1. l 0 RMG-25 o RMG-27 i o RMG-26 o RMG-28 : l 3.45 E adequate subcooling o Refer to Table 1 l margin does NOT exist, ; I THEN GO TO E0P-08, LOCA Cooldown, beginning with ! O step 3.1. l l [ i 3.46 E this E0P was entered ; while responding to a ' reactor trip, THEN GO TO E0P-02, Vital : System Status Verification i beginning with step 3.1. 3.47 GO TO E0P-10, Post-Trip i Stabilization, beginning ' with step 3.1. l i i O - E0P- 04 REV 01 PAGE 33 of 39 IHT l
Table 1 ;
, Tsat Monitor Adequate Subcooling Margin: j RCS Margin
> 1500 psig 30*F l 1
1 1500 to 50*F i
> 250 psig !
l 5 250 to 70*F l
> 150 psig j s 150 psig SPDS j s 200*F N/A !
l L i n :, t i I l i c ; 1
?
I ! i t i ! l i a ? i i ! I
- E I
{ O l t E0P-04 REV 01 PAGE 34 of 39 IHT ! l i l I
, _ . _. - I
i 1 3.0 FOLLOW-UP ACTIONS (CONT) f ACTIONS DETAILS 1 l PLANT STATUS. - REACTOR IS TRIPPED NO OTSGs AVAILABLE FOR HEAT TRANSFER N0 HPI AVAILABLE , ii ****************************************************************************** i l CAUTION Continuous efforts should be made to restore HPI Flow and/or OTSG cooling. 1 If neither HP1 or OTSG(s) are restored, Inadequate Core Cooling and Core Damage will result. t l 3.48 Ensure PORV is closed. Close RCV-10, PORV 3.49 Trip all running RCPs [ unless RCPs were not i tripped within 2 min after ' losing ASCM. i O 3.50 E at any time RC PRESS o E ASCM does NOT exist, i
> 2400 psig, THEN open PORV to reduce RC PRESS to THEN reduce RC PRESS based = 1600 psig on subcooling margin.
o E ASCM exists, i Refer to table 1. THEN open PORV to reduce RC PRESS : until either: ; o RC PRESS > ASCM curve 03 ; o RC PRESS = 1600 psig High Point Vent valves: E the PORV is NOT available, PZR A HOT LEG B HOT LEG ; THEN energize and use the , High Point Vents. DPDP-8A DPDP-5A DPDP-5B ; SW #13 SW #1 SW #1 i RCV-159 RCV-157 RCV-163 RCV-160 RCV-158 RCV-164 O E0P-04 REV 01 PAGE 35 of 39 IHT
s RULE #3, EFW CONTROL l 1 Ensure EFW flow limits are NOT exceeded... ; Ensure required 0TSG level... O 2 3 If adequate subcooling margin does NOT exist, 181H ensure OTSG levels are continuously progressing towards 80 - l 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > 100 psi below desired setpoint... l l f l t 6 l 1 O l 1 E0P-04 REV 01 PAGE 36 of 39 IHT l
.E
3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS (} 3.51 WHEN HPI flow is established AND verified, THEN open the PORV, blQ GO T0 step 3.7 of this E0P. Continue on in this E0P. 3.52 WHEN OTSG(s) become OTSGs are available for heat transfer available, if all of the following exist, THEN FW, EFW, or AFW are available G0 10 step 3.19 of this E0P to establish OTSG heat transfer. TBVs or ADVs available Continue on in this E0P OTSG integrity exists - 1 3.53 If both HPI and OTSGs are o Repair efforts have NOT been > O- NOT available for recovery, successful. THEN establish feed to the o Incore temps are increasing. OTSGs using available MFWBPs. o Refer to Enclosure 5, MFWBP feed to OTSGs. 3.54 IE incore temperatures Continue efforts to restore HPI Flow 4 indicate 2 20*F superheat, and/or OTSG Cooling. I!iD1 GO TO E0P-07, Inadequate Core Cooling, beginning with step 3.1. i O i E0P-04 REV 01 PAGE 37 of 39 IHT
l O <= BLANK PAGE 0 ( O E0P-04 REV 01 PAGE 38 of 39 IHT
Fiaure 1 i Cooldown Curve for Natural Circulation and Forced Flow O , 2600 NORMAL POST TRIP WINDOW . 2400 - w 4 4 4 J NDT , CURVE: i 2000 w ASCM 1800 CURVE ! j 1600 ;
$ NATURAL
- 1400 - CIRCULATION- ;
@ CURVE S 1200 - - - - - - - - -- -
1 1000 0 0 800 ! 600
\.A- ,
SATURATION l CURVE i 400 , i 200 . i 0 ; 100 200 300 400 500 600 700 l RCS TEMPERATURE
- F Acceptable region is: l o below and to the right of the NDT curve l o above and to the left of the ASCM curve i o above and to the left of the Natural Circulation curve if RCPs l
, are off and cooldown rate > 10 F/hr l , i E0P-04 REV 01 PAGE 39 of 39 IHT 4
. EuT REV 01 DATE 08/13/93 E0P-05 O EXCESSIVE HEAT TRANSFER 1.0 ENTRY CONDITIONS H. in MODES 3 or 4, AND EITHER of the following conditions exist: o Excessive or Uncontrolled Cooldown o Excessive or Uncontrolled 0TSG Pressure Reduction THEN use this cocedure. ' 2.0 IMMEDIATE ACTIONS i o There are NO Immediate_ Actions for this procedure. O , an - ~ _ ,
# ."<m-._.,,,_
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1 9 f I i I This Procedure Addresses Safety Related Components Approved by MNP0 [fd_ G toup/ - Date 7 T3 7)-
~
E0P-05 PAGE 1 of 29 EHT
. - .. . . _ . ~ . . . . . . - ..- - - . . - . - . . . - . . . . .
9 r I f 1 P i ~ l t i I b e i i 6 l f
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BLANK PAGE 1 'A I . 1 j i ) ! s C 4 ;l I d i i i r i t 6 i t t t 0- ! t 4 i ! E0P-05 REV 01. PAGE 2 of 29 EHT i k
- - .. .. .. ,_ - . ,. . . . - ~ . - . . - . . . . . . ,
3.0 FOLLOW-UP ACTIONS ACTIONS DETAILS 3.1 Notify personnel of plant o SOTA conditions as required. o Plant Operators o 5S00 to evaluate plant conditions for potential entry into the Emergency Plan. NOTE: High RB TEMPS may cause level instrumentation located-inside the RB to read 10?.' higher than actual. 3.2 Ensure PZR level 2 50". Restore PZR Level: IE NOT, 1 Close MUV-51, Block Orifice Byp. THEN restore PZR level. 2 Open MUV-24, Normal MU HPI Continue on in this procedure valve. 3 Ensure BWST suctions to MU open: o Open MUV-58 o Open MUV-73 1E PZR level does NOT recover, THEN perform the following: 4 Start second MVP and required cooling water pumps-5 Open additional HPI valves as required to restore PZR level: FUV-23 MUV-25 MUV-26 O E0P-05 REV 01 PAGE 3 of 29 EHT
RULE #2, HPI CONTROL l I Ensure FULL HPI... ! O 2 3 HPI MUST be throttled to prevent exceeding Pump runout, NDT limit, PTS guidelines... HPI MAY be throttled anytime adequate subcooling exists based on l j incores. ; l 4 MVP recirc valves MUST be open prior to throttling HPI flow < 200 i gpm/ pump... l 5 HPI Termination Criteria... ! t 1 I [ I r f i O l l l I r i l O :, i E0P-05 REV 01 PAGE 4 of 29 EHT ! t
t 4 3.0 FOLLOW-UP ACTIONS (CONT _1 i ACTIONS DETAILS I 3.3 JF an uncontrolled 0TSG I Depress pushbuttons on EFIC
~
pressure reduction exists, Channels A and B for affected QR a steam leak is in the OTSG: , RB, i THEN isolate the affected o " Main Stm Isolation" ; OTSG. o " Main Feed Isolation" ; e 2 Do NOT allow EFIC to feed isolated 0TSG until directed by ! this procedure. ; o Place EFIC control valves in HAND / CLOSED for affected 0TSG: j i A-0TSG B-0TSG EFV-58 EFV-57 ! EFV-56 EFV-55 i 3.4 E at any time, Engineered o E RBIC is actuated, l Safeguards systems have or THEN bypass actuation, ! should have actuated, AND restore RCP seal return and SW ; THEN ensure ES status cooling to running RCPs. l lights are blue for the ! actuated systems. o E LPI is actuated, i THEN bypass actuation, l AND control LPI: 1 E RCS PRESS > 500 psig, i THEN stop both LPI pumps. l l o E HPI is actuated, i TH_@ bypass and control HPI. [ RULE #2, HPI CONTROL) i l l l l l O l E0P-05 REV 01 PAGE 5 of 29 EHT : l l 1
Applicable Carry-over steps: l 3.4 IE ES has or should have actuated... P h h 9 T I P L s i i
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f F h I I i
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I i \ i E I I E0P-05 REV 01 PAGE 6 of 29 EHT , i w c-w n -ew---a -s- m y,, --r w -m.+ - co- --' w fMm
1 i 3.0 FOLLOW-UP ACTIONS (CONT)
, () ACTIONS DETAILS 3.5 If an MS or MFW line break 1 Ensure CH Chillers and pumps '
has occurred in the IB, stopped: IHfH isolate CH chillers l and water pumps from CHHE-1A l Penetration Cooling. CHHE-1B CHP-1A , Continue on in this Procedure. CHP-1B 2 ___ Notify available operator to close CHV-229, 124' CC near : AHF-54A. i 3 Notify available operator to , Start CC cooling per OP-409, Section 4.10. ; E i 3.6 1[ 4 RCPs are operating, Maintain RCP-1B operating for maximum l' THEN stop 1 RCP prior to PZR spray. reaching 5 410*F. , i l i 1 4 O E0P-05 REV 01 PAGE 7 of 29 EHT
4 i Applicable Carry-over steps: i t 3.4 Jf ES has or should have actuated... ! 3.6 Stop the 4th RCP before 410*F RCS TEMP... ! i i i i i i
?
)
l i a i
.I i
4 ; r j t t l i l i E0P-05 REV 01 PAGE 8 of 29 EHT ! l
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3.0 FOLLOW-UP ACTIONS (CONTl ACTIONS DETAILS 3.7 IF OTSG pressure lowered 1 Select each valve closed, to 600 psig, AND QB OTSG isolation was ensure valves are closed on manually initiated, affected OTSG, see table celow: T!!M ensure proper operation of affected Valve A-0TSG B-0TSG components. AND MBV FWV-30 FWV-29 GO TO Step 3.14 in this LLBV FWV-31 FWV-32 procedure. SUBV FWV-36 FWV-33 Disch X-Tie FWV-28 FWV-28 MFWP Suction FWV-14 FWV-15 MSIVs MSV-411 MSV-413 MSV-412 MSV-414 2 Ensure MFWP trips on affected 0TSG. o "A" OTSG, FWP-2A o "B" 0TSG, FWP-2B 3 Do NOT allow EFIC to feed the isolated 0TSG until directed by this procedure. o Place EFIC control valves in HAND / CLOSED for affected 0TSG: A-0TSG B-0TSG EFV-58 EFV-57 EFV-56 EFV-55 4 GO TO Step 3.14 in this procedure. O E0P-05 REV 01 PAGE 9 of 29 EHT
Applicable Carry-over steps: 3.4 E ES has or should have actuated... 3.6 Stop the 4th RCP before 410*F RCS TEMP... RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded... 2 Ensure required OTSG level... 3 E adequate subcooling margin does NOT exist, TJiG ensure OTSG levels are continuously progressing towards 80 - 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > 100 psi below desired setpoint... Table 1 Required 0TSG Levels: Inadequate ?.dequate Subcooling Margin Subcooling Margin No RCPs RCPs 80 - 90% 60 - 70% LLL O O E0P-05 REV 01 PAGE 10 of 29 EHT
3.0 FOLLOW-UP ACTIONS (CONT) i ACTIONS OFTAILS (} i 3.8 If either OTSG is o IE MFW flow exists to the OTSG with ! above required level the high level, AND either MFW OR EFW flow THEN: exists to the OTSG with the high level, 1 Trip both MFWPs: IBfB stop the overfeed, , o Trip FWP-2A Refer to Table 1, Required c Trip FWP-28 OTSG level. - 2 Ensure both EFWPs start and
; control flow.
o EFP-1 i o EFP-2 ' [ RULE #3, EFW CONTROL] o if EFW flow exists to the OTSG with I the high level, ! THEN Control EFW flow to stop the overfeed. . Place EFIC control valves in s HAND / CLOSED for affected 0TSG: [ A-0TSG B-0TSG EFV-58 EFV-57 l EFV-56 EFV-55 l J l 3.9 1E actions taken to o RC Pressure and Temperature stop isolate overfeed have decreasing. i stopped the overcooling, IEEN o OTSG level does NOT continue to increase above required level. GO 10 step 3.19 in this , procedurt, Refer to Table 1, Required 0TSG level. 1 l E0P-05 REV 01 PAGE 11 of 29 EHT t
r Applicable Carry-over steps: 3.4 IE ES has or should have actuated... . 3.6 Stop the 4th RCP before 410*F RCS TEMP... l i i O : i i I
. l t
i h E0P-05 REV 01 PAGE 12 of 29 EHT .
3.0 FOLLOW-UP ACTIONS (CONT) ; ACTIONS DETAILS , 3.10 Ensure closed: TBV position can only be verified o TBVs, locally. . o ADVs, o MSSVs, OTSG PRESS control: AND take directed action for any valve found open. N/A A OTSG B OTSG TBVs MSV-9 MSV-Il MSV-10 MSV-14 ADVs MSV-2S MSV-26 , o E TBVs NOT closed, . l THEN notify TB Operator to close affected TBV block valve. o E ADVs NOT closed, THEN notify TB Operator to close affected ADV block valve. o E MSSVs are NOT closed, THEN attempt to reseat any not fully 1 O seated MSSVs. l 1_ Momentarily lower affected 0TSG PRESS to = 800 psig to reseat valve. 2_ E MSSVs do NOT reseat, THEN notify maintenance to initiate repair efforts. l l l l 3.11 E actions taken to o RC Pressure and Temperature stop i isolate steam loads have decreasing. stopped the overcooling, THEt{ o OTSG Pressure does NOT continue to ; decrease. GO T0 step 3.19 in this procedure. l O l E0P-05 REV 01 PAGE 13 of 29 EHT
.. t Applicable Carry-over steps
~
3.4 IE ES has or should have actuated... I 3.6 Stop the 4th RCP before 410*F RCS TEMP... ! i i i l i i l j l t l i L I i i l
)
t t P E0P-05 REV 01 PAGE 14 of 29 EHT l I
3.0 FOLLOW-UP ACTIONS (CONT) i ACTIONS DETAILS 3.12 If overcooling 0TSG is 1 Depress pushbuttons on EFIC l known, Channels A and B for overcooling DE MSSV will NOT reseat, OTSG: THEN isolate overcooling OTSG, o " Main Stm Isolation" AND o "tiain Feed Isolation" GO T0 step 3.14 in this 2 Select each valve closed, AND ensure procedure. valves are closed on isolated 0TSG, , see table below: ! Valve A-0TSG B-0TSG . I MBV _FWV-30 _FWV-29 LLBV FWV-31 FWV-32 SUBV FWV-36 FWV-33 Disch X-Tie FWV-28 FWV-28 , MFWP Suction FWV-14 FWV-15 : MSIVs MSV-411 MSV-413 MSV-412 MSV-414 3 Ensure MFWP trips on isolated 0TSG. o "A" 0TSG, FWP-2A o "B" 0TSG, FWP-2B Do NOT allow EFIC to feed isolated 1 OTSG until directed by this E0P 4 Place EFIC control valves in i HAND / CLOSED for isolated 0TSG: ; A-0TSG B-0TSG EFV-58 EFV-57 _EFV-56 _EFV-f5 i 5 GO TO Step 3.14 in this E0P. ) O E0P-05 REV 01 PAGE 15 of 29 EHT I
, _. ~ . .. . . - - -. .-.
I Applicable Carry-over steps: , 3.4 JE ES has or should have actuated... , 3.6 Stop the 4th RCP before 410*F RCS TEMP... l l l 1 t i
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l I 5 i i I I r i
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f i i f l t i i T 5 E0P-05 REV 01 PAGE 16 of 29 EHT d l r
3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS 3.13 Isolate both OTSGs, 1 Depress pushbuttons on EFIC THEN GO TO Step 3.17 in Channels A and 8 for both OTSGs: , this procedure. o " Main Stm Isolation" - o " Main Feed Isolation" 2 Select each valve closed, AND ensure ' valves are closed on isolated OTSGs, see table below: ; Valve A-0TSG B-0TSG e I MBV FWV-30 FWV-29 LLBV FWV-31 FWV-32 SUBV FWV-36 FWV-33 Disch X-Tie FWV-28 FWV-28 MFWP Suction FWV-14 FWV-15 I
'MSIVs MSV-411 MSV-413 O MSV-412 MSV-414 3 Ensure both MFWPs trip.
o FWP-2A o FWP-2B ; 4 Trip both MFWBPs: o FWP-1A o FWP-1B Do NOT allow EFIC to feed isolated OTSGs until directed by this E0P 5 Place EFIC control valves in : HAND / CLOSED for isolated OTSGs: A-0TSG B-0TSG EFV-58 EFV-57 i EFV-56 EFV-55 6 GO TO Step 3.17 in this E0P. E0P-05 REV 01 PAGE 17 of 29 EHT j
Applicable Carry-over steps: 3.4 J.E ES has or should have actuated... , O 3.6 Stop the 4th RCP before 410*F RCS TEMP... ! t i i f Y t i O i i i l e P I E0P-05 REV 01 PAGE 18 of 29 EHT l, 5 k
T 3.0 FOLLOW-UP ACTIONS (CONT) ; e () ACTIONS DETAILS ! 3.14 IE both OTSGs have been i solated, IBfB GO T0 step 3.17 in this procedure. l 1 3.15 IE isolation of 1 OTSG has o RC Pressure and Temperature stop stopped the overcooling, decreasing. THEN GO T0 step 3.19 in this procedure. . i i t i i i i l l k i l l l l 3
+
1 I E0P-05 REV 01 PAGE 19 of.29 EHT I 1 l t
Applicable Carry-over steps: 3.4 J.f ES has or should have actuated... O 3.6 Stop the 4th RCP before 410*F RCS TEMP... O t i i l i i l l i i r 5 i O ! l E0P-05 REV 01 PAGE 20 of 29 EHT f
3.0 FOLLOW-UP ACTIONS (CONT) i ACTIONS DETAILS 1 3.16 _ _ Isolate the remaining 1 Depress pushbuttons on Channel A l OTSG. and B for the OTSG to be ' isolated: i I o " Main Stm Isolation" - o " Main Feed Isolation" ; i 2 Select each valve closed, AND ensure i valves are closed on isolated OTSGs, ! see table below: . Valve A-0TSG B-0TSG MBV FWV-30 FWV-29 l LLBV FWV-31 FWV-32 i SUBV FWV-36 FWV-33 f Disch X-Tie FWV-28 FWV-28 MFWP Suction FWV-14 FWV-15 i MSIVs MSV-411 MSV-413 l' MSV-412 MSV-414 i 3 Ensure both MFWPs trip. o FWP-2A o FWP-2B 4 1 4 Trip both MFWBPs: l 0 FWP-1A o FWP-1B Do NOT allow EFIC to feed isolated OTSGs until directed by this E0P 5 Place EFIC control valves in HAND / CLOSED for isolated 0TSGs: , A-0TSC B-0TSG ] EFV-58 EFV-57 EFV-56 EFV-55 O E0P-05 REV 01 PAGE 21 of 29 EHT l J
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Applicable Carry-over steps: l, 3.4 JE ES has or should have actuated... j 3.6 Stop the 4th RCP before 410*F RCS TEMP... , i i i l t i I 4 3 i l 1 i I i i i 'i i J d i i i I i E0P-05 REV 01 PAGE 22 of 29 EHT
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l 3.0 F0ll0W-UP ACTIONS (CONTl ACTIONS DETAILS i 3.17 If either OTSG has Stable OTSG: stabilized, o OTSG pressure not decreasing i JBEN o OTSG pressure at Psat for RCS Tc ! o OTSG level not changing i G0 10 step 3.20 in this I procedure. 5 3.18 Isolate MS supply to EFP-2 1 Select EFIC to " MANUAL , from both OTSGs. PERMISSIVE" ; 2 Close MS supply valves to EFP-2: ! I o MSV-55, A-0TSG l o MSV-56, B-0TSG ! l : i ! 1 : 1 l t I i l $ t l
)
1 1 : O l 1 i E0P-05 REV 01 PAGE 23 of 29 EHT t
i I . i Applicable Carry-over steps: !
^
3.4 IE ES has or should have actuated... [ () 3.6 Stop the 4th RCP before 410*f RCS TEMP... l RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded... 2 Ensure required 0TSG level... 3 lE adequate subcooling margin does NOT exist, THEN ensure OTSG 1evels are continuously progressing towards 80 - l 90%.. 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > 1 100 psi below desired setpoint... Table 1 , Required 0TSG Levels: Inadequate Adequate Subcooling Margin , l Subcooling i l Margin No RCPs RCPs 1 - GO - 90% 60 - 70% LLL \ i ( i r I l I i i t i E0P-05 REV 01 PAGE 24 of 29 EHT ! 6
l 3.0 FOLLOW-UP ACTIONS (CONT) ) ACTIONS DETAILS 1 3.19 lE both OTSGs have Stable OTSG: , stabilized, o OTSG pressure not decreasing THEN: o OTSG pressure at Psat for RCS Tc o OTSG level not changing , 1 Ensure proper level o Use EFW to feed isolated 0TSGs ; in both OTSGs 6 Refer to Table 1, Required OTSG E OTSG level is < 6", level. THEN refer to Enclosure [ RULE #3, EFW CONTROL] 3, Dry OTSG Recovery. 2 Stabilize RCS TEMP o Steam both OTSGs:
- Use ADVs to steam isolated OTSGs 3 GO T0 step 3.23 in this procedure.
3.20 E either 0TSG PRESS Stable OTSG: stabilizes, o OTSG pressure not decreasing ! THEN: o OTSG pressure at Psat for RCS Tc o OTSG level not changing 1 Ensure proper 12 vel o Use EFW to feed stable isolated , in stable OTSG OTSGs , E stable OTSG level Refer to Table 1, Required OTSG level, is < 6", [ RULE #3, EFW CONTROL] THEN refer to Enclosure 3, Dry 0TSG Recovery. , 2 Stabilize RCS TEMP o Steam stable OTSG: 3 GO T0 step 3.22 in this procedure. 3.21 E NO OTSG has stabilized, Stable OTSG: ! THEN o OTSG pressure not decreasing l o OTSG pressure at Psat for RCS Tc ; GO TO E0P-04, Inadequate Heat o OTSG level not changing Transfer beginning with step 3.1 to establish HPI/PORV , cooling. ' i O l E0P-05 REV 01 PAGE 25 of 29 EHT-
- _. _ - =. .- . __ .-. . - - -
i i Applicable Carry-over steps: I
. t 3.4 If ES has or should have actuated...
() 3.6 Stop the 4th RCP before 410*F RCS TEMP... Table 1 + Required 0TSG Levels: { Inadequate Adequate Subcooling Margin Subcooling : Margin No RCPs RCPs ; 80 - 90% 60 - 70% LLL ; t Table 2 Adequate Subcooling Margin: i I RCS Margin l s
> 1500 psig 30*F ,
< 1500 to 50*F i
> 250 psig
)
1 250 to 70*F
> 150 psig l
() s 150 psig i 200*F SPDS N/A 1 i' l l l t A i I E0P-05 REV 01 PAGE 26 of 29 EHT 1 l
i 3.0 FOLLOW-UP ACTIONS (CONTl i ACTIONS DETAILS 3.22 Allow the bad 0TSG to boil dry and perform the l following: 1 Stabilize RCS TEMP. o Continue to Steam stable OTSG as . required. l 2 Ensure EFW does not o Close EFW valves for bad 0TSG: feed bad 0TSG. EF:t Valve A OTSG B OTSG EFV-58 EFV-57 Control Valve EFV-56 EFV-55 EFV-Il EFV-32 Block Valve EFV-14 EFV-33 3 Ensure proper level Refer to Table 1, Required 0TSG level, in stable Ci:G. O 3.23 IE adequate subcooling Refer to Table 2, Adequate Subcooling margin does NOT exist, Margin. Id.Uf GO TO E0P-03, Inadequate Subcooling Margin, beginning with step 3.2. l O E0P-05 REV 01 PAGE 27 of 29 EHT
l Applicable Carry-over steps: j 3.4 J1 Es has or should have actuated.... 3.6 Stop the 4th RCP before 410*F RCS TEMP... ; t i i i i t I i i t i
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I l I i f t i i E0P-05 REV 01 PAGE 28 of 29 EHT . I ew
3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS 3.24 IE OTSG tube leak exists, Condenser or MS line radiation ; THEN monitors have alarmed: GO TO E0P-06, Steam Generator Condenser exhaust monitor: RMA-12 ; Tube Rupture, beginning with step 3.1. MS line monitors: !' o RMG-25 o RMG-27 o RMG-26 o RMG-2S i 3.25 IE this E0P was entered while responding to a reactor trip, THEN GO TO E0P-02, Vital System Status Verification, beginning with step 3.2. 3.26 GO TO E0P-10, Post-Trip O Stabilization, beginning with step 3.1. O E0P-05 REV 01 PAGE 29 of 29 EHT
, SGTR REV 01 DATE 08/13/93 ,
E0P-06 ( STEAM GENERATOR TUBE RUPTURE 1.0 ENTRY CONDITIONS ! I
.lF a > 1 gpm Steam Generator Tube Leak exists, J113 use this E0P.
2.0 IMMEDIATE ACTIONS This E0P has no immediate actions. I i
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4 i i I r 1 i I This Procedure Addresses Safety Related Components Approved by MNPO' t ptt'_. A wun Date ? .5 o -R '
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E0P-06 V PAGE 1 of 53 SGTR '
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3.0 FOLLOW-UP ACTIONS . ACTIONS DETAILS 3.1 Notify personnel of plant o SOTA conditions as required. i o Plant Operators to obtain dose rate instruments. o 5S00 to evaluate plant conditions for potential entry into the Emergency Plan. o System Dispatcher to compensate for CR-3 power reduction. 3.2 Maintain PZR level = 220" (200 - 240"). LE PZR level can NOT be Restore PZR Level: maintained > 200" using normal makeup, 1 Close MUV-51, Block Orifice Byp. THEN restore PZR level. 2 Open MUV-24, Normal MU HPI Continue on in this E0P valve. 3 Ensure BWST suctions to MU open: o Open MUV-58 o Open MUV-73 lE PZR level does NOT recover, THEN perform the following: 4 Start second MVP and required cooling water pumps 5 Open additional HPI valves as required to restore PZR level: MUV-23 MUV-25 MUV-26 E0P-06 REV 01 PAGE 3 of 53 SGTR i I
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.i E0P-06 REV 01 PAGE 4 of 53 SGTR !
r 3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS _ 3.3 E PZR level can NOT be 1 Close MUV-49, Letdown Isolation. 1 maintained 2 100", THEN: E MUV-49 will NOT close, , IHfN close all letdown cooler 1 Isolate letdown, outlet isolation valves: [ 2 Trip the reactor MUV-40 i AND GO TO E0P-02, Vital MUV-41 i System Status MUV-505 Verification, beginning : with step 2.1. 2 GO TO E0P-02, Vital System ! Status Verification, step 2.1. ! 3.4 Start power reduction at ! 1 5% RTP/ min. l E reactor trips during power reduction, i THEN GO TO E0P-02, Vital System Status O, Verification., beginning with step 2.1. ! E turbine trips during ; power reduction, i THEN trip the reactor, AND GO TO E0P-02, Vital System Status l Verification., beginning with step 2.1. 3.5 Notify Health Physics o Health Physics to survey for AND increased radiation levels: Chemistry, to perform required MS lines, actions. CX demins, CD hotwell. o Chemistry to perform: STS required sampling for > 15% l power change in any hour, j Sampling for Boron and Tritium ' to determine affected 0TSG. O 1 E0P-06 REV 01 PAGE 5 of 53 SGTR l l l
i i Applicable Carry-over steps: j
- 3.3 E PZR level < 100', Trip Rx - GO TO E0P-02, VSSV... ;
3.4 E Rx or Turbine trips, Trip Rx - GO TO E0P-02, VSSV... l i i ( i i i i t i 4 i i t i I i P i f I ;
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E0P-06 REV 01 PAGE 6 of 53 SGTR P
r 3.0 FOLLOW-UP ACTIONS (CONTl ACTIONS DETAILS Note: ' If both OTSGs have symptoms of tube leakage, perform actions only on the OTSG with the largest leak rate unless directed otherwise. 3.6 Begin determining affected o Contact Chemistry for results of 0TSG OTSG samples for boron and tritium. o Contact Health Physics for results of MS line survey. o Observe MS line radiation monitors and recorder traces: 0TSG A B ADV RMG-25 RMG-28 MS LINE RMG-27 RMG-26 i o Note: The break points for emergency plan action level upgrade with OTSG tube , leaks are: 50 and 200 gpm. 3.7 Begin estimation of leak o Observe Makeup, HPI and Seal rate. Injection flowrates. o Observe letdown flowrate. o Values for leakrate determination: MUT = 30.8 gals /in. l PZR = 12.3 gals /in. ' OTSG = 45 gals /in. OTSG = 135 gals /%. O E0P-06 REV 01 PAGE 7 of 53 SGTR
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Applicable Carry-over steps: . l ~ 3.3 E PZR level < 100', Trip Rx - GO TO E0P-02, VSSV... O 3.4 E Rx or Turbine trips, Trip Rx - GO TO E0P-02, VSSV... , i l Note: , The break points for emergency plan action level upgrade with ! OTSG tube leaks are: 50 and 200 gpm. i i i i i O l l i l t L O E0P-06 REV 01 PAGE 8 of 53 SGTR i i r
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I I 3.0 FOLLOW-UP ACTIONS (CONTl ; () ACTIONS, DETAILS 3.8 Ensure Shutdown electrical Transfer auxiliary plant loads: lineup. ! o 4160V Unit Aux Bus 3A i i 1 Select " AUTO TRANSFER 3203" to Manual ! t 2 Close Bkr 3203 3 Open Bkr 3201 o 4160V Unit Aux Bus 3B 1 Select " AUTO TRANSFER 3204" ! to Manual 2 Close Bkr 3204 3 Open Bkr 3202 IE 6900V Rx Aux Bus (es) are aligned to the Unit Aux Transformer, THEN transfer affected buses. Refer s to OP-703, Plant Distribution System, , section 4.3. 3.9 WHEN MWE 1 400, Secure one CDP. ' THEN reduce the number of operating CDPs to 1. 1 Reduce CDP controller load to 0. Continue on in this E0P 2 Stop associated CDP. i O E0P-06 REV 01 PAGE 9 of 53 SGTR
Applicable Carry-over steps: 3.3 E PZR level < 100', Trip Rx - GO TO E0P-02, VSSV. . . 3.4 E Rx or Turbine trips, Trip Rx - GO TO E0P-02, VSSV... 3.9 When MWE is < 400, reduce operating CDPs to 1... f Note: The break points for emergency plan action level upgrade with OTSG tube leaks are: 50 and 200 gpm. ; l l O : t l O E0P-06 REV 01 PAGE 10 of 53 SGTR
5 3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS 3.10 Mifli MWE I 300, Secure 1 MFWP: IEfJi reduce the number of operating Main Feedwater 1 Open FWV-28, FW Cross-tie. pumps to 1. < 2 Reduce FW pump demand to 0. Continue on in this E0P 3 Reduce MFWP Governor Speed Control to Low Limit. 4 Trip associated MFWP. 5 Open associated turbine drain valves. 6 Ensure turning gear control switch is selected to " Engage". 3.11 WHEN MWE 1 300, Secure 1 MFWBP: THEN reduce the number of operating Feedwater 1 Start associated Aux Oil Pump. O Booster pumps to 1. Continue on in this E0P 2 Secure 1 MFWBP. 3 Ensure associated MFWBP discharge valve closes. 3.12 WHEN MWE $ 300, o Depress " RESET" pushbutton on reheat IEffi Isolate MSR HP control panel. bundles. o CLOSE: ' Continue on in this E0P MSV-29, MS to "A" MSR MSV-30, MS to "B" MSR MSV-31, MS to "C" MSR l MSV-32, MS to "D" MSR , O E0P-06 REV 01 PAGE 11 of 53 SGTR f l
Applicable Carry-over steps:
./
3.3 If PZR level < 100', Trip Rx - GO TO E0P-02, VSSV... 3.4 1E Rx or Turbine trips, Trip Rx - GO TO E0P-02, VSSV... 3.9 When MWE is < 400, reduce operating CDPs to 1... 3.10 When MWE is < 300, reduce operating MFWPs to 1... 3.11 When MWE is < 300, reduce operating MFWBPs to 1... 3.12 When MWE is < 300, isolate MSR HP bundles... Note: The break points for emergency plan action level upgrade with OTSG tube leaks are: 50 and 200 gpm. O : 1 O E0P-06 REV 01 PAGE 12 of 53 SGTR
3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS 3.13 WHEN reactor i 12% RTP, 1 Select turbine control to "0PER THEN reduce turbine load AUT0" or "0PER MAN". AND trip the turbine. 2 Establish turbine load between 45 and 55 Mwe. 3 Ensure MS Hdr PRESS is controlled by TBVs. 4 Open Output Bkrs 1661 and 1662. 5 Select the Voltage Regulator to "0FF". 6 Open the Main Generator Field Bkr. 7 Depress "TURB TRIP" pushbutton. 8 Ensure TVs or GVs are closed. 3.14 WHEN Tave is 1 565'F, Steps 1 and 2 must be performed in THEN trip Rx, rapid succession. AND Remain in this E0P. 1 Adjust MS setpoint to 46, 2 Depress Rx Trip pushbutton. 3 Ensure CRD Groups 1 through 7 are fully inserted. 4 Ensure Reactor Power is decreasing on Intermediate Range. 5 Maintain OTSG PRESS < 1000 psig. 3.15 Notify Plant Operators to perform required post-trip actions per Enclosure 1. b a E0P-06 REV 01 PAGE 13 of 53 SGTR
.- . __. _- .. . = .
l ~ flote: ; I : The break points for emergency plan action level upgrade with ! OTSG tube leaks are: 50 and 200 gpm. !
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L 4 f I O ' E0P-06 REV 01 PAGE 14 of 53 SGTR i
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i 3.0 FOLLOW-UP ACTIONS (CONTl () ACTIONS DETAILS i l Note: ; When the reactor is shutdown, the dose rate indicated on Main Steam Line ! radiation monitors will decrease due to the reduction in RCS N g. 3.16 Determine affected 0TSG. o Contact Chemistry for results of OTSG samples for boron and tritium. o Contact Health Physics for results of MS line survey. ; o Observe MS line radiation monitors and recorder traces: ! OTSG A B l ADV RMG-25 RMG-28 MS LINE RMG-27 RMG-26 O o Observe OTSG levels and feedwater flows for abnormal trends. NOTE: . i Every effort should be made to steam OTSGs to available condenser. ] l 3.17 IE steaming affected OTSG 1 Contact Chemistry to obtain last ) to atmosphere, sample results for pre-existing THEN determine steaming RCS DOSE EQUIVALENT I-131. time limit. AND notify them to obtain peak DOSE EQUIVALENT I-131 value from IE steaming to condenser, Tech Spec required surveillance THEN there is no time for power change. limit based on lodine. 2 Use Figure 1 to determine Continue in this E0P. initial steaming time limit. 3 WHEN peak DOSE EQUIVALENT I-131 sample results are known, THEN use Figure 2 to determine if steaming time limits have changed. E0P-06 REV 01 PAGE 15 of 53 SGTR
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RULE #2, HPI CONTROL 1 Ensure FULL HPI... ; O 2 3 HPI MUST be throttled to prevent exceeding Pump runout, NDT limit, PTS guidelines... HP1 MAY be throttled anytime adequate subcooling exists based on i incores. : l 4 MVP recirc valves MUST be open prior to throttling HPI flow < 200 ; gpm/ pump... l 5 HPI Termination Criteria... i i i Note: The break points for emergency plan action level upgrade with OTSG tube leaks are: 50 and 200 gpm. . I I I i l i r t I O E0P-06 REV 01 PAGE 16 of 53 SGTR l t
3.0 FOLLOW-UP ACTIONS (CONT) . 1 ACTIONS DETAILS 3.18 Isolate Aux loads from close on affected 0TSG: ! affected 0TSG. i Continue in this E0P Valve A-0TSG B-0TSG MFWP Supply MSV-107 MSV-108 EFP Supply _MSV-55 _MSV-56 GS Supply MSV-58 MSV-57 DFT Supply N/A _MSV-180 AS Supply _MSV-179 N/A_ MSDT MSV-297 MSV-301 Isolation MSV-299 MSV-303 - O 3.19 E at any time, Engineered Safeguards systems have or should have actuated, o E RBIC is actuated, THEN bypass actuation, AND restore RCP seal return and SW THEN ensure ES status cooling to running RCPs.
~ lights are blue for the l actuated systems. o E LPI is actuated,
- THEN bypass actuation, ;
AND control LPI: , i E RCS PRESS > 500 psig, THEN stop both LPI pumps. l 0 E HPI is actuat' ,
- THEN bypass and sontrol HPI.
[ RULE #2, CONTROL HPI] l O ; E0P-06 REV 01 PAGE 17 of 53 SGTR
Applicable Carry-over steps: 3.19 IE ES has or should have actuated... RULE #3, EFW CONTROL : 1 Ensure EFW flow limits are NOT exceeded... ; 2 Ensure required 0TSG level... l 3 lE adequate subcooling margin does NOT exist, THEN ensure OTSG levels are continuously progressing towards 80 - f 90%,.. > 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > l 100 psi below desired setpoint...
~
Note: The break points for emergency plan action level upgrade with , OTSG tube leaks are: 50 and 200 gpm. Table 3 Required 0TSG Levels: Inadequate Adequate Subcooling Margin , Subcooling ; Margin No RCPs RCPs l 80 - 90% 60 - 70% LLL I O i E0P-06 REV 01 PAGE 18 of 53 SGTR l j
i l 3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS :
)
3.20 Jf N_Q RCPs are operating, 1 Ensure both EFWPs start and THEN ensure EFIC actuates control flow. ' AJQ verify natural circulation develops. [ RULE #3, EFW CONTROL] i If EFW is NOT available, 2 Ensure EFIC NATURAL CIRCULATION : THEN use MFW. setpoint is selected for level control. Refer to Table 3, Required 0TSG level. l 3 Indications of Nat Circ: ; Tc coupled with and tracking Tut i for OTSGs. ! AT (T$ncore - Tc) develops and i' stabilizes. Tincore within 10*F of Th. ; O l i o ; E0P-06 REV 01 PAGE 19 of 53 SGTR
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Applicable Carry-over steps: f 3.19 If ES has or should have actuated... j l Note; j 1 The break points for emergency plan action level upgrade with j OTSG tube leaks are: 50 and 200 gpm. ; s Table 1, OTSG Tube to Shell AT Limits. Tensile AT Limit: Avg TsNrn - Teoid i 100*F i Compressive AT Limit: Tnot - Avg Tsnen s 60*F "A" OTSG shell Temps: A-730, 731, 732, 733, 734, Avg: R-771 "B" 0TSG shell Temps: A-735, 736, 737, 738, 739, Avg: R-772 - l i I t i i t l ( E0P-06 REV 01 PAGE 20 of 53 SGTR ,
i i 3.0 FOLLOW-UP ACTIONS (CONT) , ACTIONS DETAILS I NOTE I Starting an RCP could result in a temporary loss of adequate subcooling ; margin due to collapsing of voids. All RCPs must be secured if ASCM does not recover within 2 minutes. ; 3.21 E , at any time while RCPs are available when ALL of the performing this E0P, N0 following conditions exist: RCPs are running, AND RCPs become available, 6900V Rx Aux Buss Energized THEN start at least 1 RCP. 1 70*F Subcooling Margin exists. All RCP start permissives are met Compressive Tube to Shell AT is
< 60*F. Refer to Table 1.
RCP starting: 1 E RCPs were tripped due to loss of Subcooling margin, THEN establish PZR level 1 200" 2 E either OTSG is available, THEN start 1 RCP in each loop, starting the RCP in the loop with the highest OTSG 1evel first. E NO OTSG is available, THEN start 1 RCP. O E0P-06 REV 01 PAGE 21 of 53 SGTR
t t Applicable Carry-over steps: ! O 3.19 IE ES has or should have actuated... 3.21 Start at least 1 RCP when available... !
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Note: ! i The break points for emergency plan action level upgrade with ! OTSG tube leaks are: 50 and 200 gpm. ! Table 2 : Adequate Subcooling Margin: ! RCS Margin j
> 1500 psig 30*F
< 1500 to 50*F
] 3 5 250 psig lt 1 250 to 70*F i
> 150 psig l s 150 psig SPDS i 1 200*F N/A !
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E0P-06 REV 01 PAGE 22 of 53 SGTR I'
3.0 FOLLOW-UP ACTIONS (CONT) ( ACTIONS DETAILS Note: , Cooldown of the RCS will cause OTSG tube leakage to appear larger than s actual. During a stable established cooldown, each *F/Hr will require at [ least I gpm additional makeup due to RCS contraction. ; i o Observe Makeup, HPI and Seal 3.22 Estimate leak rate. Injection flowrates. o Observe Letdown flowrate. ; o Values for leakrate determination:
! MUT = 30.8 gals /in.
i PZR = 12.3 gals /in. ; OTSG = 45 gals /in. OTSG = 135 gals /%. ; i i 3.23 Start RCS o De-energize PZR heaters. . l depressurization. ! o Use PZR spray. : E RCPs are NOT operating E PZR spray is NOT effective, i THEN establish high pressure auxiliary spray flowpath using OP- ; 305, Operation of the Pressurizer, Section 4.3. I E PZR spray is NOT available, ! M while establishing HP Aux Spray, l THEN use PORV. ; i o Control PZR spray to maintain PZR ; cooldown rate s 100*F/hr. o Maintain RC PRESS as low as practical, without losing ASCM. t Refer to Table 2, ASCM. O E0P-06 REV 01 PAGE 23 of 53 SGTR
t Applicable Carry-over steps:
- 3.19 LF_ ES has or should have actuated...
3.21 Start at least 1 RCP when available... j L Table 2 I Adequate Subcooling Margin: , l l RCS Margin f
> 1500 psig 30*F [
s 1500 to 50*F
> 250 psig ,
1 250 to 70*F l
> 150 psig l l 5 150 psig SPDS 5 200*F N/A ,
Table 3 Required 0TSG Levels: ' 1 ' Inadequate Adequate Subcooling Margin Subcooling l Margin No RCPs RCPs i 1 80 - 90% 60 - 70% LLL l l l l l l O i E0P-06 REV 01 PAGE 24 of 53 SGTR l
^ 1
s 1 3.0 FOLLOW-UP ACTIONS (CONTl () ACTIONS DETAILS 3.24 Notify available operator Prepare blowdown flow path to to establish OTSG blowdown condenser from affected OTSG per lineup to condenser. Enclosure 6, OTSG Blowdown Lineup. 3.25 Ensure OTSGs are at 1E ASCM does NOT exist, required levels. AND 1500 gpm HPI flow exists, THEN do NOT continue to feed the affected 0TSG. Refer to Table 2, ASCM Refer to Table 3, Required 0TSG : levels. 3.26 Establish Mode 3 1 __ Open CD heater bypass, CDV-242. Condensate system operation. 2 Close CD heater isolation ' valves: , O o CDV-44, A-Train o CDV-43, B-Train 3 Throttle CDV-242 to control i Dearator level between 7' and 11'. ! 4 Maintain CD system pressure between 90 and 150 PSIG using the controller for the : operating CDP. 3.27 Notify Chemistry to sample RCS baron concentration to , ensure shutdown margin is maintained. O E0P-06 REV 01 PAGE 25 of 53 SGTR t
I i i Applicable Carry-over steps: > 3.19 IE ES has or should have actuated... O 3.21 Start at least 1 RCP when available... Table 4, Cooldown limits. i RCP RCS Temp Normal Emergency
> 500*F s 50*F \ hr s 240*F/hr ;
i 1 1 RCP 500 to 280*F s 50*F % hr s 50*F % hr 280 to 150*F s 25*F % hr 1 25*F % hr ;
> 500*F s 25'F % hr 5 240*F/hr No RCPs 500 to 280*F s 25'F % hr i 25'F % hr ;
280 to 150*F 1 10*F % hr s 10 F % hr l l i i i d i i ! l > l l l ! J i 5 ', I. l 4 i i i l l 1 l i
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l E0P-06 REV 01 PAGE 26 of 53 SGTR
1 3.0 FOLLOW-UP ACTIONS (CONTl i ACTIONS DETAILS l 3.28 Determine if emergency or use emergency cooldown limits if normal cooldown limits either of the following conditions apply. exist ] o Leakrate is 1 500 GPM, j DB o Steaming to atmosphere with RCS DOSE l EQUIVALENT I-131 1 5 gCi/cc. J 3.29 Start cooldown using both o Use TBVs or ADVs. OTSGs, maintaining cooldown within applicable o Ensure SP-422, RC Heatup and limits. Cooldown surveillance is in progress. i Refer to Table 4, cooldown limits. , O 3.30 IE either of the following conditions exist: 1 Ensure blowdown line is filled and vented per Enclosure 6. o Affected 0TSG level is 2 Establish required blowdown increasing due to tube flow: leak, 0R Notify TB Operator to adjust ; o Steaming to atmosphere MSV-517 and MSV-516 to obtain time limit is desired flow. approached, , 3 Adjust TBVs or ADVs to maintain , THEN establish blowdown cooldown rate. l flow to maintain OTSG level i 90%. 4 Minimize steaming of affected 0TSG to atmosphere if time limit - is approached. Refer to Table 4, Cooldown limit. O : E0P-06 REV 01 PAGE 27 of 53 SGTR
l Applicable Carry-over steps: i 3.19 If ES has or should have actuated... 3.21 5 tart at least 1 RCP when available... J Table 2 l Adequate Subcooling Margin: j RCS Margin l
> 1500 psig 30*F I s 1500 to 50*F .
> 250 psig l 1 250 to 70*F j
> 150 psig i s 150 psig SPDS l l
s 200*F N/A l f I l l t i I k J i i [ l i l I E0P-06 REV 01 PAGE 28 of 53 SGTR i l t
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3.0 FOLLOW-UP ACTIONS (CONTl ! I ACTIONS DETAILS 3.31 E an unisolable OTSG Use OTSG steam leak guidance if either steam leak exists, of the following exist: ; lHB GO T0 step 3.45 in i this E0P. o Cooldown can NOT be controlled, . o Steam leak is causing personnel or i equipment hazard. I 3.32 H at any time affected Affected 0TSG isolation is required 0TSG isolation is when ANY of the following conditions required, exist: THEN GO T0 step 3.49 in , this E0P. o Affected OTSG level can NOT be ' maintained i 90% due to tube leak. IE returning to this step after isolating affected o BWST level 1 27.5 ft. ! OTSG, l TH@ continue on in this o Time limit for steaming to j E0P. atmosphere is approached. ; o- 3.33 WHEN either OTSG PRESS is Depress "< 725 PSI OTSG PRESS EFIC i [ between 725 and 600 psig, ACT. BYPASS" pushbuttons. ; THEN bypass EFIC MS and MFW isolation actuation. Channel A j Continue in this E0P Channel B , Channel C ! Channel D [ 3.34 WHEN RCS is < 1700 psig, Bypass HPI on both A and B channels. ; AND adequate subccoling , margin exists, CHAN A CHAN B j THEN bypass HPI actuation. ! RCI RC1 Continue in this E0P ! RC2 RC2 i RC3 RC3l Refer to Table 2, ASCM. O. , E0P-06 REV 01 PAGE 29 of 53 SGTR 4
Applicable Carry-over steps: 3.19 If ES has or should have actuated... 3.21 Start at least 1 RCP when available... 3.32 If at any time OTSG isolation is required... 3.33 Bypass MSLI and MFLI at 725# OTSG PRESS... 3.34 Bypass HPI at 1700# IF ASCM exists... O i I i i
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i l ((() ! 1 I E0P-06 REV 01 PAGE 30 of 53 SGTR I
3.0 FOLLOW-UP ACTIONS (CONT) . l ACTIONS DETAILS 3.35 IE HPI flow exists, o Notify AB operator to fill BWST from THEN establish BWST fill DW and BASTS. as soon as practical. o Refer to OP-403-B section 4.6. , Continue in this E0P 3.36 IE 4 RCPs are operating, Maintain RCP-1B operating for maximum ; TJ!El{ stop 1 RCP prior to PZR spray. l reaching < 410*F. j 3.37 JE HPI flow does NOT CONCURRENTLY PERFORM SP-421, exist, Reactivity Balance Calculations. THEN ensure required 3 shutdown margin while continuing to cooldown. r O ! l i O E0P-06 REV 01 PAGE 31 of 53 SGTR l
i Applicable Carry-over steps: !
~
3.19 IE ES has or should have actuated... t 3.21 Start at least 1 RCP when available... ! 3.32 If at any time OTSG isolation is required... 3.33 Bypass MSLI and MFLI at 725# OTSG PRESS... ! 3.34 Bypass HPI at 1700# IF ASCM exists... l 3.36 Stop the 4th RCP before 410*F RCS TEMP... ; i Table 2 Adequate Subcooling Margin: ; RCS Margin
> 1500 psig 30*F s 1500 to 50*F .
> 250 psig l 1 250 to 70*F !
> 150 psig !
s 150 psig SPDS j s 200*F N/A l i ^
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i i i i O i E0P-06 REV 01 PAGE 32 of 53 SGTR !
t 3.0 FOLLOW-UP ACTIONS (CONTl ACTIONS DETAILS I 3.38 Mi@ RCS PRESS < 900 psig, Bypass LPI on both A and B channels. ; MQ adequate subcooling margin exists, CHAN A CHAN B JJi@ bypass LPI actuation. ' RC4 RC4 Continue in this E0P RC5 RCS : RC6 RC6 Refer to Table 2, ASCH. 3.39 WHEN RCS PRESS < 700 psig, 1 Notify AB Operator to remove AND adequate subcooling locks and close Bkrs for CFT i margin exists, isolation valves at ES MCC 3AB: ; THEN isolate CFTs. o CFV ', o CFV-6 ; Continue in this E0P 2 Close: ! o CFV-5 o CFV-6 Refer to Table 2, ASCM. l 3.40 IF adequate subcooling Refer to Table 2, ASCM. : I margin does NOT exist, ; THEN GO TO E0P-08, LOCA ; Cooldown beginning at step , 3.1. ! i L i l O ! E0P-06 REV 01 PAGE 33 of 53 SGTR ; f
- . . . . - .= .._
Applicable Carry-over steps: 3.19 IE ES has or should have actuated... > 3.21 Start at least 1 RCP when available... 3.32 If at any time OTSG isolation is required... , 3.33 Bypass MSLI and MFLI at 725# OTSG PRESS... 3.34 Bypass HPI at 1700# IF ASCM exists... , 3.36 Stop the 4th RCP before 410*F RCS TEMP... l 3.38 Bypass LPI at 900# RC PRESS IF ASCM exists... 3.39 Isolate CFTs at 700# RC PRESS IF ASCM exists... l i l l ! l l i o 4 f
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l 4 l i I P O E0P-06 REV 01 PAGE 34 of 53 SGTR 4 y c - -, - - - ,- - -- -
l i 3.0 FOLLOW-UP ACTIONS (CONT) ACTI,0fiS DETAILS
~
3.41 } dig RCS PRESS is < 550 Ensure RCV-10 switch in NNI Cabinet #3 is selected to the psig, JH Q ensure PORV is " LOW" position. ' selected to the Low Temperature Overpressure , Protection Mode. 3.42 Continue cooldown and CONCURRLNTLY PERFORM OP-404, Decay ! depressurization to Heat Removal Jystem, Section 4.5.
- establish DH system l operation. i 3.43 WHEN DH system is 1 Ensure the following valves are providing core cooling, closed- t IH S stop OTSG cooling.
VALVE A OTSG B OTSG MBV FWV-30 FWV-29 LLBV FWV-31 -FWV-32 SUCV _FWV-40 _FWV-39 ! i MS to EFP-2 MSV-55 MSV-56 l . MS to TBVs MSV-53 MSV-54 and MFWPS ! EFW Block -EFV-11 -EFV-32 , Valves EFV-14 EFV-33 : OTSG -MSV-130 -MSV-148 Blowdown 2 Stop MFW and EFW pumps. , 3.44 Exit this E0P. The TSC will provide any necessary guidance from this point. l o E0P-06 REV 01 PAGE 35 of 53 SGTR
i t Applicable Carry-over steps: , 3.191E ES has or should have actuated... ; 3.21 Start at least 1 RCP when available... ; 6 i i t i t I i i I I i t b l i i i i 4 , A d i E0P-06 REV 01 PAGE 36 of 53 SGTR i
3.0 FOLLOW-UP ACTIONS (CONT 1 j
. t
() Afl10NS DETAILS h 0 801E The following steps should be considered for OTSG tube leaks coincident : with unisolable 07tG steam leaks. . 3.45 lE steam leak and tube leak are NOT in the same ! OTSG, ANO steam leak is in RB, , THEN isolate the OTSG with the steam leak, AND cooldown using the ; OTSG with the tube leak. , GO T0 step 3.52 of this E0P. ; 3.46 lE steam leak and tube leak are NOT in the same OTSG, AND steam leak is causing O an uncontrolled plant cooldown, IEEH isolate the (TSG with
- the steam leak, 2
AND cooldown using the OTSG with the tube leak. GO T0 step 3.52 of this E0P. O E0P-06 REV 01 PAGE 37 of 53 SGTR
l l Applicable Carry-over steps: 3.19 IE ES has or should have actuated... 3.21 Start at least 1 RCP when available... : RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded... ; 2 Ensure required 0TSG level... ' 3 IE adequate subcooling margin does NOT exist, IHEN ensure OTSG levels are continuously progressing towards 80 - 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > 100 psi below desired setpoint... l i I i
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E0P-06 REV 01 PAGE 38 of 53 SGTR '
3.0 FOLLOW-UP ACTIONS (CONT) () ACTIONS DETAILS 3.47 If steam leak is in the RB o Isolate MFW to affected 0TSG. on the OTSG with the tube leak, o Do NOT allow EFW to feed affected THEN: 0TSG. o Do not feed affected [ RULE #3, CONTROL EFW] . OTSG o Available RB cooling units in slow o Maintain MSIVs open to speed with emergency duty SW and RW allow steaming to the cooling. condenser o Establish emergency RB cooling. GO T0 step 3.32 of this E0P. ! 3.48 If steam leak is in the OTSG with the tube leak, ANQ steam leak is outside O the RB, THEN consider steaming the OTSG with the tube leak to 3 the condenser to limit radiation release. GO T0 step 3.32 of this E0P. l E0P-06 REV 01 PAGE 39 of 53 SGTR f
. i Applicable Carry-over steps: ,
e 3.19 IE ES has or should have actuated... : O. s 3.21 Start at least 1 RCP when available... 3.32 If at any time OTSG isolation is required... . 3.33 Bypass MSLI and MFLI at 725# OTSG PRESS... ' 3.34 Bypass HPI at 1700# IF ASCM exists... i f i P t l L i ! t t 4 E0P-06 REV 01 PAGE 40 of 53 SGTR 4 4
T 3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS { STATUS: 0TSG isolation is required due to any of the following: i o High OTSG level o Low BWST level ; o Steaming to atmosphere limited by high RCS activity. l Note: 0TSG drains may be used to help control 0TSG pressure s 1000 psig if affected 0TSG isolation is required prior to establishing RCS pressure 5 1000 psig. 3.49 E isolating affected 0TSG Maintain RCS PRESS s 1000 psig: due to high level, M establish and o PZR spray maintain RCS PRESS s 1000 o PORV psig, o HPVs o Letdown , O 3.50 E isolating the affected o Use TBVs or ADVs. OTSG due to atmospheric ; steaming time limit QR low BWST level, M establish and maintain T,,, < 540 F. O E0P-06 REV 01 PAGE 41 of 53 SGTR
Applicable Carry-over steps: 3.19 IE ES has or should have actuated... , O 3.21 Start at least 1 RCP when available... 3.32 If at any time OTSG isolation is required... 3.33 Bypass MSLI and MFLI at 725# OTSG PRESS... 3.34 Bypass HPI at 1700# IF ASCM exists... ; RULE #3, EFW CONTROL ! 1 Ensure EFW flow limits are NOT exceeded.. . ! 2 Ensure required 0TSG level... 3 lE adequate subcooling margin does NOT exist, j lHfH ensure OTSG levels are continuously progressing towards 80 - l 90%... - 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > 100 psi below desired setpoint... : 1
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l ( l J l 1 i l l l l l l 1 O E0P-06 REV 01 PAGE 42 of 53 SGTR I l l i
3.0 FOLLOW-UP ACTIONS (CONT) , () ACTIONS DETAILS 3.51 WHEN RCS conditions have 1 Depress pushbuttons on EFIC l been established for OTSG Channels A and B for desired , isolation, OTSG: THEN isolate affected 0TSG. o " Main Stm Isolation" o " Main Feed Isolation" 2 Select each valve closed, AND ensure valves are closed on isolated OTSG, , see table below: , Valve A-0TSG B-0TSG MBV FWV-30 FWV-29 LLBV FWV-31 FWV-32 SUBV FWV-36 FWV-33 . Disch X-Tie FWV-28 FWV-28 MFWP Sutt. FWV-14 FWV-15 () MSIVs MSV-411 MSV-413 ! MSV-412 MSV-414 3 Ensure MFWP trips on isolated 0TSG. o "A" 0TSG, FWP-2A i o "B" 0TSG, FWP-2B > 4 Place EFIC control valves in HAND / CLOSED for isolated 0TSG: : A-0TSG B-0TSG EFV-58 EFV-57 EFV-56 EFV-55 i 5 Ensure OTSG blowdown valve is closed for isolated 0TSG: ; o MSV-130, A OTSG , o MSV-148, B OTSG O : E0P-06 REV 01 PAGE 43 of 53 SGTR
i r Applicable Carry-over steps: j 3.19 lE ES has or should have actuated... : 3.21 Start at least 1 RCP when available... ' 3.32 If at any time OTSG isolation is required... 3.33 Bypass MSLI and MFLI at 725# OTSG PRESS... 1 3.34 Bypass HPI at 1700# IF ASCM exists... ! Table 1 , OTSG Tube to Shell AT Limits: Tensile AT Limit: Avg Tshe11 - Tcoid s 100*F ; i Compressive AT Limit: That - Avg Tshe11 : 1 60*F "A" OTSG shell Temps: A-730, 731, 732, 733, 734, Avg: R-771 i "B" OTSG shell Temps: A-735, 736, 737, 738, 739, Avg: R-772 .l i i O :
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l E0P-06 REV 01 PAGE 44 of 53 SGTR j
I 3.0 FOLLOW-UP ACTIONS (CONT) { ACTIONS DETAILS 3.52 E both OTSGs are isolated i QB are NOT available to remove heat, THEN Maintain RC Pressure 5 1000 psig ; AND GO TO E0P-04 IHT, beginning with step 3.2 to establish HPI/PORV cooling. , 3.53 Maintain tube-to-shell aT o Tubes colder than shell, tensile within limits. limit is 100*F. Refer to Table 1, Tube to E emergency cooldown rate is in i Shell AT limits. use, THEN tensile limit is 150*F, tube colder than shell. E tensile limit is approached, THEN reduce cooldown rate. 7 o Tubes hotter than shell, compressive , limit is 60*F. ! E compressive limit is approached, THEN increase cooldown rate using ; TBVs or ADVs without exceeding - cooldown rate limits. Refer to Table 1, Tube to Shell AT. ; l 1 l I 1 1 O E0P-06 REV 01 PAGE 45 of 53 SGTR I l 1
Applicable Carry-over steps: 3.19 If ES has or should have actuated... O 3.21 Start at least 1 RCP when available... 3.32 If at any time OTSG isolation is required... 3.33 Bypass MSLI and MFLI at 725# OTSG PRESS... 3.34 Bypass HPI at 1700# IF ASCM exists... Table 2 Adequate Subcooling Margin: RCS Margin
> 1500 psig 30*F s 1500 to 50*F
> 250 psig 1 250 to 70*F
> 150 psig .
s 150 psig SPDS i s 200*F N/A i i l ( i t i
)
E0P-06 REV 01 PAGE 46 of 53 SGTR l
3.0 FOLLOW-UP ACTIONS (CONT) () ACTIONS DETAILS 3.54 Control plant cooldown and o IE OTSG is isolated due to tube RCS PRESS to prevent loop leak, voiding. IHEN decrease or stop cooldown and depressurization to maintain idle loop adequate subcooling margin. o IE OTSG is isolated due to a steam or feedwater leak, THEN either: o Decrease cr stop cooldown and depressurization to maintain adequate subcooli.;g margin. t og o if leak is NOT in the RB, ! THEN consider feeding the affected OTSG to maintain ! subcooling margin and promote natural circulation. i Refer to Table 2, ASCM. i 3.55 GO T0 step 3.32 in this E0P. 1 l l l l I i O E0P-06 REV 01 PAGE 47 of 53 SGTR ! l 1
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Time Limits for Steaming Affected 0TSG(s) to Atmosphere l Based on Pre-existing DOSE EQUIVALENT I-131 Concentration ; l 20e j i l 108 , f I F 51
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e s i 1 - I l 2 l- j . s 4 1 l j i 5 10 15 23 25 le l $ he Existing D.E.1-131 C:ren:ntion (ri/c:) ; i i
- Notes: 1. Steaming time unlimited for concentration less than 5 gCi/cc. :
- 2. If pre-existing DOSE EQUIVALENT I-131 concentration is 2 20 I gCi/cc, isolate affected 0TSG as socn as possible.
. 3. It' pre-existing DOSE EQUIVALENT l-131 concentration is 15 f i
gCi/cc, use emergency cooldown rates per step 3.28. O ! E0P-06 REV 01 PAGE 49 of 53 SGTR' ! i
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E0P-06 REV 01 PAGE 50 of 53 SGTR I i
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i i ~~ Fioure 2 i I Time Limits for Steaming Affected OTSG(s) to Atmosphere ! Based on Transient Peak DOSE EQUIVALENT I-131 Concentration j I i a 30 t i 1 1 l l 100 i
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i I 4 2 i ! t t a 1 3D C 5D 60 70 to 90 tatsient Ped D.E.1431 Concentration luci/cc) Notes: 1. Steaming time unlimited for concentration left of vertical line. j l 2. If transient peak DOSE EQUIVALENT I-131 concentration is > 85 j pCi/cc, isolate affected 0TSG as soon as possible, I i e ~ E0P-06 REV 01 PAGE 51 of 53 SGTR l f
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I Fiqure 3 Cooldown Curve for Natural Circulation and Forced Flow l 2600 NORMAL PO3T TRIP WINDOW 2400 + . + 2200 NDr l CURVE:
\ w ASCM :
1800 , , CURVE g 1600 . 3
- c. NARJRAL v 1400 . CIRCULATION --
l
@ _ CURVE 1200 -- -- --
- ~ ~\ - - - - - - - - -
e 1 1000 0 , O 800 _. . E 600 SATURATION
- CURVE 400 i
i 0 100 200 300 400 500 600 700 Acceptable region is: RCS TEMPERATURE *F ; o below and to the right of the NDT curve o above and to the left of the ASCM curve : o above anc' to the left of the Natural Circulation curve if RCPs l are off and cooldown rate 110 F/hr l l E0P-06 REV 01 PAGE 53 of 53 SGTR j l
ICC REV 01 DATE 08/13/93 E0P-07 l t v, INADEQUATE CORE COOLING 1.0 ENTRY CONDITIONS i IE incore temperatures indicate 2 20*F superheated conditions, THEN use this E0P. , 2.0 IMMEDIATE ACTIONS This E0P has no immediate actions. m , ;_ ..
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This Procedure Addresses Safety Related Components Approved by MNP0 .Dh gaun Date f -J3_-T3 (:) ' E0P-07 PAGE 1 of 29 ICC i
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3.0 FOLLOW-UP ACTIONS () ACTIONS DETAILS Note: : Events causing entry into this E0P will likely meet the conditions for
- upgrading Emergency Plan Classification.
3.1 Ensure maximum available 1 Ensure required HPI suction flow l HPI flow up to 540 GPM per path for running all MUPs. based , pump. on BWST level: i o IE BWST level is > 25', ' THEN use either BWST or i piggyback from LPI. i o IE BMST level is 1 25', l THEN use piggyback from LPI. ; r HPI section sources: BWST LPI MUV-73 s DHV-11 MVV-58 DHV-12 i 2 Ensure ALL available HPI pumps i and associated cooling pumps ! are operating. , 3 Ensure all available HPI valves are open: o MUV-23 o MUV-24 o MUV-25 o MUV-20 l 4 Ensure MVP recirc valves are I closed: i o MUV-53 o MUV-257 5 Ensure HP1 flows are balanced between available HPI lines. i l t O r E0P-07 REV 01 PAGE 3 of 29 ICC
RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded... O 2 3 Ensure required OT5G level... If adequate subcooling margin does NOT exist, THEN ensura OTSG le vels are continuously progressing towards 80 - 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > , 100 psi below desired setpoint... E r t t i E0P-07 REV 01 PAGE 4 of 29 ICC
3.0 FOLLOW-UP ACTIONS (CONTl . ACTIONS DETALLS 3.2 E at any time RCS PRESS o Ensure 2 LPI pumps are operating
< 500 psig, ,
AND LPI flow is 2 300 gpm, o Ensure LPI valves are aligned and i THEN ensure maximum LPI operating correctly. flow for existing RCS conditions. , E LPI FLOW < 300 gpm, THEN refer to Enclosure 2, LPI Low Flow Control. 3.3 Ensure CFT isolation Ensure open: valves are open. o CFV-5 o CFV-6 3.4 E RCS PRESS reaches 2400 o E PORV fails to close, psig, THEN close RCV-11, PORV Block valve. THEN reduce RCS PRESS until either of the o E PORV is NOT available, O following: THEN reduce RCS PRESS using High Point vents: o RCS PRESS = 100 psig > OTSG PRESS High Point Vent valves: , QE PZR A HOT LEG B HOT LEG ! o RCS PRESS = 100 psig > DPDP-8A DPDP-5A DPDP-5B [ next higher ICC region SW #13 SW #1 SW #1 curve from Figure 1, ICC Regions Based on RCV-159 RCV-157 RCV-163 Incore TEMPS. RCV-160 RCV-158 RCV-164 NOTE: High RB TEMPS may cause level instrumentation located inside the RB to read 10% higher than actual. 3.5 Ensure OTSG levels are [ RULE #3, EFW CONTROL] 80 - 90%. O E0P-07 REV 01 PAGE 5 of 29 ICC
Applic.able Carry-over steps: 3.2 1E RC PRESS is < 500#, ensure LPI flow is 2 300 gpm... O Table 1 Desired 0TSG PRESS Tsat,cs - 100*F RCS PRESS - OTSG PRESS 2000 - 925 psig 1500 - 655 psig ! 1000 - 390 psig
- 500 - 160 psig 250 - 60 psig 65 - O psig Figure 1, Inadequate Core Cooling Regions ,
based on Incore TEMPS j:
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l l I 3.0 FOLLOW-UP ACTIONS (CONT) () ACTIONS DETAILS 3.6 IE EFP-1 is NOT available, IHfH ensure adequate steam supply to EFP-2 by either: o Align EFP-2 to AS Refer to Enclosure 7, EFP-2 Steam i Lineup to Units 1/2. QB t o Maintain OTSG PRESS
> 100 psig i
3.7 Ensure OTSG Psat is = o Lower OTSG PRESS using TBVs or ADVs. 100*F below RCS Tsat for ! existing RCS PRESS. o Refer to Table 1. 3.8 Ensure the following RB o Ensure ES status lights are blue for l conditions exist: components affected by RBIC. THEN bypass actuation, AND restore RCP seal return and SW O, o RBIC in effect. cooling to running RCPs. o RB PRESS < 30 psig, o IE RB PRESS 1 30 psig and increasing, THEN ensure BSP-1A and BSP-1B are operating with = 1550 gpm flow each. i l i i () E0P-07 REV 01 PAGE 7 of 29 ICC I
5 Applicable Carry-over steps: , 3.2 If RC PRESS is < 500#, ensure LPI flow is 2 300 gpm... ', Figure 1, Inadequate Core Cooling Regions based on Incore TEMPS Deo. .
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i O l l O E0P-07 REV 01 PAGE 8 of 29 ICC
3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS CAUTION Placing the ECCS on RB sump suction may cause high radiation levels in ! the auxiliary building. 3.9 E at any time, BWST LEVEL 1 Verify RB WATER level is > 2.2' is < 5', THEN transfer LPI suction 2 Throttle LPI flow for each train l from BWST to RB sump, to 2000 (1800 - 2200) gpm using - LPI valves: Continue on in this E0P. o DHV-5 o DHV-6 , 3 Ensure 1200 gpm and " LOCAL" are selected for: o BSV-3 o BSV-4 4 Open RB sump outlet valves: o DHV-42 o DHV-43 5 WHEN RB sump outlet valves are open, THEN close BWST outlet valves: l l 0 DHV-34 o DHV-35 l
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- 3.10 E at any time, HPI is 1 E only 1 LPI pump is operating, operating, THEN ensure open:
AND LPI is aligned to RB sump, o MVV-62 o MUV-69 THEN establish HPI suction from LPI. 2 Establish HPI suction from LPI ; by opening. ! o DHV-Il o DHV-12 4 3 Close BWST suctions to HPI while observing for signs of cavitation: o MUV-73 o MUV-58 i O l
- E0P-07 REV 01 PAGE 9 of 29 ICC
Applicable Carry-over steps: 3.2 JE RC PRESS is < 500#, ensure LPI flow is 2 300 gpm... O, 3.9 Swap LPI to RB sump suction at 5' BWST water level... 3.10 WHEN LPI is aligned to RB sump, establish HPI suction from LPI. Figure 1, Inadequate Core Cooling Regions based on Incore TEMPS (
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I 3.0 FOLLOW-UP ACTIONS MSHI) () ACTIONS DETAILS
*******************************+**********************************************
CAUTION Do NOT revert to the actions for a less severe ICC region unless directed by this E0P to ensure core cooling is maintained. 3.11 Determine ICC region based o Select SPDS to ICC curves with on Tincore and RCS PRESS Tincere selected. AND GO T0 applicable section based on ICC o IE SPDS is NOT available, region. THEN determine average for the 5 highest Tincore, AND use Figure 1, to determine ICC Region Step Number region. 1 3.12 o Refer to Core Exit Thermocouple r corder or. computer group 60 for 2 3.1 Tincore. 3 3.14 4 3.22 O-4~ , 3.12 If OTSG tube leak exists, Condenser or MS line radiation THEN GO TO E0P-06, SGTR, monitors have alarmed: beginning with step 3.1. Condenser exhaust: RMA-12 MS lines: o RMG-25 o RMG-27 o RMG-26 o RMG-28 3.13 GO TO E0P-08, LOCA Cooldown, beginning with step 3.1. l O i E0P-07 REV 01 PAGE 11 of 29 ICC 1
F Applicable Carry-over steps: , 3.2 lE RC PRESS is < 500#, ensure LPI flow is ;_ 300 gpm... i 3.9 Swap LPI to RB sump suction at 5' BWST water level... : 3.10 WHEN LPI is aligned to RB sump, establish HPI suction from LPI. Figure 1, Inadequate Core Cooling Regions based on Incore TEMPS
= m: -
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l 3.0 FOLLOW-UP ACTIONS (CONT) () ACTIONS DETAILS l CAUTION Entering ICC Region 3 is indicative of potential cladding gas gap failure l and will likely meet the conditions for upgrading the Emergency Plan Classification. 1 3.14 If while performing step Refer to Figure 1, ICC Regions Based 3.15 through 3.21, on Incore TEMPS. AND Tincore increases to Region 4, THEN GO T0 step 3.22 in this E0P. j i
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Applicable Carry-over steps: j 3.2 E RC PRESS is < 500#, ensure LPI flow is > 300 gpm... ! O 3.9 Swap LPI to RB sump suction at 5' BWST water level... 3.10 WHEN LPI is aligned to RB sump, establish HPI suction from LPI. 3.14 E Incore TEMP enters Region 4, GO T0 step 3.22. t RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded... 2 Ensure required 0TSG level .. . 1 3 E adequate subcooling margin does NOT exist, i TH1H ensure OTSG levels are continuously progressing towards 80 - 90%... l 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > ' 100 psi below desired setpoint... Table 1 Desired 0TSG PRESS ; Tsat Res - 100*F RCS PRESS - OTSG PRESS 2000 - 925 psig 1500 - 655 psig 1000 - 390 psig 500 - 160 psig 250 - 60 psig 65 - O psig . Figure 1, Inadequate Core Cooling Regions based on Incore TEMPS e
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3.0 FOLLOW-UP ACTIONS (CONT) () ACTIONS DETAILS ] I
**************************************************w ************************** j CAUTION Once RCPs are started, they should NOT be tripped, except for motor electrical faults, unless another RCP is started in the same loop to prevent core damage.
3.15 IE RCPs are available, RCPs are available when start i IHfH start 1 RCP/ loop. permissives are met. 1 1E a running RCP trips, ! THEN start the other RCP in that loop. 3.16 Open all High Point vents. Ensure open High Point Vent valves: r PZR A HOT LEG B H0T LEG O DPDP-8A DPDP-5A DPDP-5B i SW #13 SW #1 SW #1 RCV-159 RCV-157 RCV-163 RCV-160 RCV-158 RCV-164 L 3.17 Ensure OTSG Psat is = o Control OTSG PRESS using TBVs or 100*F below RCS Tsat for ADVs. existing RCS PRESS. o Refer to Table 1. 3.18 Ensure OTSG levels are at [ RULE #3, EFW CONTROL] 80 to 90%. , O I E0P-07 REV 01 PAGE 15 of 29 ICC
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Applicable Carry-over steps: 3.2 H RC PRESS is < 500#, ensure LPI flow is 2 300 gpm... q 3.9 Swap LPI to RB sump suction at 5' BWST water level... 3.10 }LHfH LPI is aligned to RB sump, establish HPI suction from LPI. 3.14 E Incore TEMP enters Region 4, GO T0 step 3.22. Table 1 Desired OTSG PRESS Tsat,c3 - 100*F 7 RCS PhESS - OTSG PRESS 2000 - 925 psig 1500 - 655 psig > 1000 - 390 psig 500 - 160 psig l 250 - 60 psig 65 - O psig , Figure 1, Inadequate Core Cooling Regions based on Incore TEMPS sa -_ _j.. g_ l_ -- .._.. ,
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O : E0P-07 REV 01 PAGE 16 of 29 ICC
3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS 3.19 1E OTSG heat transfer is OTSG heat transfer exists if feeding MI established, OR steaming causes a decrease in IR B open PORV, incore temperatures. AND maintain OTSG Piat = 100'F below RCS Ts t. Reduce RCS PRESS until either of the following: o RCS Tsat is = 100*F > OTSG PRESS Refer to Table 1 M o RCS PRESS is = 100 psig > next higher ICC region curve 3.20 For the remainder of the PZR vents: cooldown, the PZR vent should be used in place of o RCV-159 o RCV-160 the PORV to ensure a slow rate of depressurization. 3.21 WHEN Tincere becomes GO T0 a.ppropriate procedure based on saturated, OTSG status. IB M GO T0: E0P-08, LOCA Cooldown, beginning at step 3.1. M E0P-06, Steam Generator Tube Rupture, beginning at step 3.1. O E0P-07 REV 01 PAGE 17 of 29 ICC
Applicable Carry-over steps: ' W 3.2 E RC PRESS is < 500#, ensure LPI flow is 2 300 gpm... 3.9 Swap LPI to RB sump suction at 5' BWST water level... ] 3.10 WHEN LPI is aligned to RB su;np, establish HPI suction from LPI. i RULE #3, EFW CONTROL l 1 Ensure EFW flow limits are NOT exceeded... I 2 Ensure required 0TSG level... 3 E adequate subcooling margin does NOT exist, Iliffi ensure OTSG levels are continuously progressing towards 80 - , 90%... ' 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > 100 psi below desired setpoint... Figure 1, Inadequate Core Cooling Regions based on Incore TEMPS
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i 3.0 FOLLOW-UP ACTIONS (CONT) ACTIONS DETAILS CAUTION Entering ICC Region 4 is indicative of potential core damage and will ! likely meet the conditions for upgrading the Emergency Plan Classification. s 3.22 Bypass RCP start o Key 50 in SS0D key locker i permissives AND start all RCPs. o QQ NOT attempt to defeat RCP l I overload trip circuits. 3.23 Reduce OTSG PRESS as low Lower OTSG PRESS using TBVs or ADVs as possible. l 3.24 Ensure OTSG levels are 80 [ RULE #3, EFW CONTROL] i to 907.. I O ! 3.25 IE OTSG heat transfer is OTSG heat transfer exists if feeding i NOT established, OR steaming causes a decrease in l THEN reduce RCS PRESS to incore temperatures. I establish CFT discharge i and ' PI flow. o Ensure PORV is open. o Ensure all High Point vents are I open: PZR A HOT LEG B HOT LEG DPDP-8A DPDP-5A DPDP-5B SW #13 SW #1 SW #1 RCV-159 RCV-157 RCV-163
- RCV-160 RCV-158 RCV-164 O
E0P-07 REV 01 PAGE 19 of 29 ICC
Applicable Carry-over steps: 3.2 IE RC PRESS is < 500#, ensure LPI flow is 2 300 gpm... ' O 3.9 Swap LPI to RB sump suction at 5' BWST water level... 3.10 WHEN LPI is aligned to RB sump, establish HPI suction from LPI. i RULE #3, EFW CONTROL 1 Ensure EFW flow limits are NOT exceeded... 2 Ensure required 0TSG level... ' 3 JE adequate subcooling margin does NOT exist, ! THEN ensure OTSG levels are continuously progressing towards 80 - ! 90%... 4 EFW flow should be throttled to prevent OTSG PRESS from decreasing > ' 100 psi below desired setpoint... l Figure 1, Inadequate Core Cooling Regions ; based on Incore TEMPS l _ t i sa - aus _ + j. t_ -/ O l_- s- ,
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3.0 FOLLOW-UP ACTIONS (CONT) f () ACTIONS DETAILS 3.26 Notify available plant Refer to EM-308, Post Accident ; operator ic place RB monitoring of the RB Atmosphere. atmosphere H, monitor in service. j s 3.27 WHJ1[ Tincore becomes . saturated, ! THEN continue in this E0P. 3.28 IE RCPs are operating,
- THEN reduce operating RCPs to 1/ loop.
3.29 Maintain OTSG levels [ RULE #3, EFW CONTROL] l' 80 to 90% 3.30 1E OTSG heat transfer is OTSG heat transfer exists if feeding established, OR steaming causes a decrease in THEN ensure RCS cooldown incore temperatures. rate is within limits, AND close PORV. o Control cooldown rate using TBVs and/or ADVs. o RCS cooldown rate limits: RCS TEMP 'F LIMIT
> 280 5 50*F % hr 280 to 150 1 25*F \ hr E0P-07 REV 01 PAGE 21 of 29 ICC
Applicable Carry-over steps: 3.2 IE RC PRESS is < 500#, ensure LPI flow is 2 300 gpm... i Swap LPI to RB sump suction at 5' BWST water level... O. 3.9 3.10 WHEN LPI is aligned to RB sump, establish HPI suction from LPl. t RULE #2, HPI CONTROL ! 1 Ensure FULL HPl... ; HPI MUST be throttled to prevent exceeding Pump runout, NDT limit, PTS 2 guidelines... 4 3 HPI MAY be throttled anytime adequate subcooling exists based on - incores. l 4 MVP recirc valves MUST be open prior to throttling HPI flow < 200 t gpm/ pump... l 5 HPI Termination Criteria... Figure 1, Inadequate Core Cooling Regions based on Incore TEMPS ;
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> 1500 psig 30*F s 1500 to 50*F l
> 250 psig !
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> 150 psig ;
5 150 psig SPDS l 5 200*F N/A , O i
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E0P-07 REV 01 PAGE 22 of 29 ICC j t
l 3.0 FOLLOW-UP ACTIONS (CONT) t r () ACTIONS DETAILS , 3.31 If adequate subcooling o Ensure all High Point vents are I margin is restored, closed: THEN control HPI and close ; all High Point vents. ! PZR A HOT LEG B HOT LEG RCV-159 RCV-157 RCV-163 RCV-160 RCV-158 RCV-164 l [ RULE #2, HPI CONTROL] Refer to Table 3, ASCM 3.32 WHEN LPI flow is 11000 1 Notify AB Operator to remove gpm in each injection locks and close Bkrs for CFT line, isolation valves at ES MCC 3AB: THEN isolate CFTs. o CFV-5 o CFV-6 2 Close: o CFV-5 o CFV-6 3.33 WHEN LPI flow is 1,1000 1 Open MVP retirc valves: gpm in each injection line for 1 20 minutes, o MUV-53 o MUV-257 - THEN: 2 Close all HPI injection valves: , Stop HPl MUV-23 MUV-24 Stop all RCPs MUV-25 MUV-26 3 Stop all MUPs 4 Stop all RCPs E0P-07 REV 01 PAGE 23 of 29 ICC
1 1 4 Applicable Carry-over steps: l 3.9 Swap LPI to RB sump suction at 5' BWST water level... ; O Figure 1, Inadequate Core Cooling Regions l i based on Incore TEMPS l t l
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3.0 FOLLOW-UP ACTIONS (CONTl
. l
() ACTIONS DETAILS I 3.34 WHEN RCS PRESS < 150 psig, High Point vents: THEN ensure PORV and High . Point vents are closed, AND maintain RCS PRESS PZR A HOT LEG B HOT LEG
< 150 psig using PORV or High Point vents. RCV-159 RCV-157 RCV-163 RCV-160 RCV-158 RCV-164 3.35 Establish Long Term Core Cooling per OP-404, Section 4.13 3.36 WHEN Long Term Core The TSC will provide any necessary i Cooling has been guidance from this point. t established per OP-404, '
Section 4.13, THEN EXIT this E0P. O J l i i E0P-07 REV 01 PAGE 25 of 29 ICC !
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4 Fioure 1 l 1 , Inadequate Core Cooling Regions based on Incore TEMPS i 2600 Saturation ~ 2400 curve- <
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!O REGION 1 .
I g 1400 T-clad > 1400 m 1200 REGION 3 i 1000 -T-clad > 1800 l REGION 4 t 800 i 600 400 P 3 200 400 600 - 800 1000 1200 ! INCORE TEMP (* F) i RB pressure may be added to indicated RC pressure to determine correct ICC region. E0P-07 REV 01 PAGE 27 of 29 ICC
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. Fiaure 2 Post 'Irip Cooldowa Curves 2600 NORMAL POST TRIP WINDOW 2400
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5 1200 .- -- - - - - - -- ----- - --- -- - - - - - - - c1 O- 8 1 1000 M - O 800 C 600 ! , . SATURATION . CURVE 400 - _ I 200 O 100 200 300 400 500 600 700 , Acceptable region is: RCS TEMPERATURE *F ; o below and to the right of the NDT curve - I o above and to the left of the ASCM curve o above and to the left of the Natural Circulation curve if RCPs are 7 off and cooldown rate 210 F/hr O E0P-07 REV 01 PAGE 29 of 29 ICC
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, LOCACD REV 01 DATE 08/13/93 E0P-08 O
v LOCA C00LDOWN 1.0 ENTRY CONDITIONS This E0P is referenced from other procedures. 2.0 1MMEDIATE ACTIONS This E0P has no immediate actions
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I l-J f 1 1 a I ThisProcedurQddressesSafetyRelatedComponents Approved by MNPO 6 ( d % w u m Date P H ' (/1 . E0P-08 V PAGE 1 of 55 LOCACD 4 e i
t RULE #1, LOSS OF SUBC00 LING HARGIN 4 If adequate subcooling margin is lost, l IHEN perform the following: O 1 2 Trip ALL RCPs immediately... Ensure FULL HPI... l 3 Ensure HPI flows are balanced... RULE #2, HPI CONTROL 1 Ensure FULL HPI... ! 2 HPI MUST be throttled to prevent exceeding Pump runout, NDT limit, PTS guidelines... 3 HPI MAY be throttled anytime adequate subcooling exists based on f f incores. ; l 4 MVP recirc valves MUST be open prior to throttling HPI flow < 200 l gpm/ pump... 5 HPI Termination Criteria... l l l 4 k n
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l 1 l f E0P-08 REV 01 PAGE 2 of 55 LOCACD i
t 1d _ '?LLOW-UP ACTIONS ACTIONS DETAILS , STATUS: RCS leakage 2 50 gpm exists OR HPI / PORV cooling is in progress. 1 3.1 Notify personnel of plant o SOTA conditions as required. o Plant Operators o SSOD to evaluate plant conditions for potential entry into the Emergency Plan. 3.2 Ensure HPI flow is [ RULE #2, HPI CONTROL] ontrolled. P 3.3 E at any time, Engineered o E RB PRESS 2 30 psig and Safeguards systems have or increasing, , should have actuated, THEN ensure BSP-1A and BSP-1B are : O M N ensure ES status operating with = 1550 gpm flow each. lights are blue for the actuated systems, o E RBIC is actuated, l M N bypass actuation, AND restore RCP seal return and SW i cooling to running RCPs. o E LPI is actuated, i THEN bypass actuation, AND control LPI: E RCS PRESS > 500 psig, f THEN stop both LPI pumps. E RCS PRESS < 500 psig, ANQ LPI FLOW < 300 gpm, THEN refer to Enclosure 2, LPI Low Flow Control. , i o E HPI is actuated, THEN bypass and control HPI. [ RULE #1, LOSS OF SUBC00 LING MARGIN , [ RULE #2, HPI CONTROL] , i O - E0P-08 REV 01 PAGE 3 of 55 LOCACD
i, t I Applicable Carry-over steps: )i 3.3 IE ES actuates, THEN ensure actuation... i l I i 4 I i i I i I 1 t
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i L t i r t t r i i i E0P-08 REV 01 PAGE 4 of 55 LOCACD 1 i t r-
3.0 FOLLOW-UP ACTIONS (CONT'D) i () ACTIONS DETAILS i 3.4 Isolate RB sump and WG o Place BOTH RB sump pumps in header. Pull-tJ:-Lock: [ o WDP-2A o WDP-2B o Isolate the RB sump discharge line by closing: o WDV-3 o WDV-4 o Isolate RCDT from WG by closing: i o WDV-405 o WDV-406 ; O i i l a I e b I [ E0P-0B REV -01 PAGE 5 of 55 LOCACD
t Applicable Carry-over steps: 3.3 Jf_ ES actuates, THEN ensure actuation... ; t l l
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t t E0P-08 REV 01 PAGE 6 of 55 LOCACD i
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l l 3.0 FOLLOW-UP ACTIONS (CONT'D) ; ACTICNS DETAILS 3.5 Ensure maximum RB cooling: o Ensure Emergency duty SW Pump -f running: ' o SWP-1A running 1 M o SWP-1B running l o Ensure Emergency duty RW Pump ! running: l 0 RWP-2A running i M o RWP-2B running ; o Start ALL available RB cooling . units running in slow speed: AHF-1A AHF-1C AHF-1B o Align SW cooling'to RB cooling units: , t 1 Ensure Closed: SWV-152 SWV-151 ) SWV-355 - 2 Ensure open: SWV-353 ;
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SWV-354 i i E O ! E0P-08 REV 01 PAGE 7 of 55 LOCACD j
r t 1 i Applicable Carry-over steps: 3.3 1E ES actuates, IEEN ensure actuation... Table 1 l
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Required OTSG Levels: Inadequate Adequate Subcooling Margin Subcooling Margin No RCPs RCPs , t 80 - 90% 60 - 70% LLL l Table 2 l OTSG Tube to Shell AT Limits: ! Tensile AT Limit: Avg Tst 11 - Teoki 5 100*F Compressive AT Limit: Twit - Avg Tswai 5 60*F "A" OTSG shell Temps: A-730, 731, 732, 733, 734, Avg: R-771 ,
"B" OTSG shell Temps: A-735, 736, 737, 738, 739, Avg: R-772 ;
( i i 4 j E0P-08 REV 01 PAGE 8 of 55 LOCACD i
3.0 FOLLOW-UP ACTIONS (CONT'D1 ACTIONS DETAILS NOTE: r i High RB TEMPS may cause level instrumentation located inside the RB to read 10% higher than actual. i a 3.6 Ensure available OTSGs are OTSGs are available if all of the ; at QR are progressing following exist: towards required level. l Any source of FW is available ' E feeding a dry OTSG, TBVs or ADVs are available THEN refer to Enclosure 3, OTSG integrity exists Dry OTSG Recovery. Refer to Table 1. NOTE Starting an RCP could result in a temporary loss of adequate subcooling
> margin due to collapsing of voids. All RCPs must be secured if ASCM does not recover within 2 minutes.
O 3.7 E , at any time while RCPs are available when ALL of the performing this E0P, N0 following conditions exist: RCPs are running, AND RCPs become available, 6900V Rx Aux Busses Energized, THEN start at least 1 RCP. 2 70*F Subcooling Margin exists, All RCP start permissives are met, Compressive Tube to Shell AT is ,
< 60*F. Refer to Table 2. '
l RCP starting: 1 E RCPs were tripped due to loss ! of Subcooling margin, ' THEN establish PZR level 2 200" 2 E either OTSG is available, i THEN start 1 RCP in each loop, l starting the RCP in the loop , i with the highest OTSG level ; first. j IF NO OTSG is available, l THEN start 1 RCP. O i l E0P-08 REV 01 PAGE 9 of 55 LOCACD l 1
i l Applicable Carry-over steps: : 3.3 IE ES actuates, THEN ensure actuation... O 3.7 Start at least 1 RCP when available... 1 i Table 3 1 sat Mor.itor Adecuate Subcooling Margin: ; RCS Margin j
> 1500 psig 30*F :
i 1500 to 50*F
> 250 psig 1 250 to 70*F
> 150 psig .
5 150 psig SPDS s 200*F N/A f O l l
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I r i l i t - k i O ; i E0P-08 REV 01 PAGE 10 of 55 LOCACD ,
. l 3.0 FOLLOW-UP ACTIONS (CONT'D)
() ACTIONS DETAILS
. 3.8 WHEN either OTSG PRESS is Depress "< 725 PSI OTSG PRESS EFIC between 725 and 600 psig, ACT. BYPASS" pushbuttons:
IBEM bypass EFIC MS and < MFW isolation actuation. Channel A Continue in this E0P. Channel B Channel C Channel D 3.9 WHEN RCS PRESS < 1700 Bypass HPI actuation: psig, 6NQ Adequate SCM exists, CHAN A CHAN B THEN bypass HP1 actuation. RC1 RC1 Continue in this E0P. RC2 RC2 RC3 RC3 O Refer to Table 3. 3.10 Notify available plant Refer to EM-308, Post Accident operator to place RB monitoring of the RB Atmosphere. atmosphere 2H monitor in : service. t i 'l
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l I E0P-08 REV 01 PAGE 11 of 55 LOCACD
Applicable Carry-over steps: l
' 3.3 If ES actuates, I!id ensure actuation... .)
3.7 Start at least 1 RCP when available... t 3.8 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... l 3.9 Bypass HPI Actuation at 1700# if ASCM exists... i i l i i t i l I i i i f i e t I t I i i L E0P-08 REV 01 PAGE 12 of 55 LOCACD c
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t . I 3.0 FOLLOW-UP ACTIONS (CONT'D) : 4 ACTIONS DETAILS i 3.11 E 2 running MUPs are MU suction header separation: lined up to a single BWST suction path, o E MVP-1A AND MVP-1B are aligned to t JJiffi prior to going below MUV-73, , 25 ft BWST level, align THEN the suction header to ) provide separate flow 1 Open MUV-58 i paths. 2 Open MUV-62 3 While observing MUP-1B for signs of cavitation, Close , MUV-69. o E MVP-1B AND MVP-1C are aligned to MUV-58, THEN: 1 Open MUV-73 2 Open MUV-69 3 While observing MVP-1B for signs of cavitation, Close MUV-62. E the MU suction Seader LPI - HPI piggyback operation: ; can NOT be separated, THEN establish LPI to HPI o E MUV-73 is open, piggy-back operation. THEN establish the following lineup: , 1 Ensure open DHV-34 and DHV- ! 110. 1 2 Start DHP-1A. 3 Open DHV-11. l 4 Control HPI s 540 GPM/ pump to prevent runout. o E MUV-58 is open, THEN establish the following lineup: ; 1 Ensure open DHV-35 and DHV-111. ! 2 Start DHP-18. 3 Open DHV-12. ! 4 Control HPI 5 540 GPM/ pump to ! prevent runout. , i O ! E0P-08 REV 01 PAGE 13 of 55 LOCACD {
i t Applicable Carry-over steps: i 3.3 IE ES actuates, THEN ensure actuation... O 3.7 Start at least 1 RCP when available... 3.8 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... l 3.9 Bypass HPI Actuation at 1700# if ASCM exists... l RULE #1, LOSS OF SUBC00 LING MARGIN JE adequate subcooling margin is lost, , Ilg3 perform the following: l 1 Trip ALL RCPs immediately... ! 2 Ensure FULL HPI... 3 Ensure HPI flows are balanced... l Table 3 Tsat Monitor Adequate Subcooling Margin: RCS Margin
> 1500 psig 30*F ;
$ 1500 to 50*F
> 250 psig 1 250 to 70'F ;
> 150 psig 1 150 psig SPDS j
$ 200*F N/A Table 4 !
Cooldown Limits: RCP Status RCS Temp Cooldown Limit l
- ;t 1 RCP > 280*F 5 50*F % hr i Running 280 - 150*F s 25'F \ hr ,
No RCPs RC Press maintained 1 25'F % hr Running above Nat Circ Curve
> 280*F s 5'F % hr 280 - 150*F 5 2.5'F \ hr ,
d l I t O - E0P-08 REV 01 PAGE 14 of 55 LOCACD !
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3.0 FOLLOW-UP ACTIONS (CONT'D1 ! i ACTIONS DETAILS 3.12 E adequate subcooling [ RULE #1, Loss of SCM] margin does NOT exists, . THEN Refer to Table 3. ! GO TO Step 3.43 in this E0P. : 3.13 E OTSGs are NOT available OTSG heat transfer is available if all for heat transfer, of the following exist: - THEN Any source of FW is available GO T0 step 3.23 of this E0P. TBVs or ADVs available OTSG integrity exists 3.14 E HPI/PORV cooling is in E0P-04 provides the guidance to progress, restore OTSG heat transfer and to stop JH_EN HPI/PORV cooling. GO TO E0P-04, IHT, beginning with step 3.1. STATUS: o RCS is Subcooled, o OTSGs are available for additional cooling if needed, o RCPs are running if available, o RC leak isolation efforts have been unsuccessful. 3.15 Cooldown and Depressurize o E OTSGs are used to cool the RCS, the RCS. THEN control cooldown rate using TBVs or ADVs o Control RC Pressure as low as practical, without losing ASCM using: o PZR Heaters, o PZR Spray, o PORV. Refer to Table 3, ASCM requirements Refer to Table 4, Cooldown limits O E0P-08 REV 01 PAGE 15 of 55 LOCACD
Applicable Carry-over steps. , 3.3 IE ES actuates, I!!EN ensure actuation... 3.7 Start at least 1 RCP when available... . 3.8 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... ! 3.9 Bypass HPI Actuation at 1700# if ASCM r;ists... ! Table 4 Cooldown Limits: ; RCP Status RCS Temp Cooldown Limit : 1 1 1 RCP > 280*F s 50*F % hr i Running e 280 - 150*F s 25*F % hr No RCPs RC Press maintained 1 25'F % hr ; Running above Nat Circ Curve i
> 280*F 5 5*F % hr {
280 - 150*F 1 2.5'F hr ;
.m. .
Table 5 l OTSG pressure for establishing i natural circulation heat transfer , Incore - 50*F - 100*F l Temp Psat Psat 600*F 1035 685 550*F 685 410 i 500*F 410 235 450*F 235 120 400*F 120 55 I I O _ E0P-08 REV 01 PAGE 16 of 55 LOCACD l l
3.0 FOLLOW-UP ACTIONS (CONT'D) 4 () ACTIONS DETAILS 3.16 If Incore temperatures are lowering AND cooldown rate is adequate, ' IBEH I GO T0 step 3.24 in this E0P. i 3.17 IE Incore temperatures are Establish and maintain OTSG Psat 40 - rising OR cooldown rate is 60*F below Tincore until heat transfer less than desired, is established. THEN establish OTSG heat > transfer. Refer to Table 4 Refer to Table 5 3.18 IE OTSG heat transfer has OTSG heat transfer exists if feeding been established, OR steaming causes a decrease in . THEN incare temperatures. GO T0 step 3.24 of this E0P. i ( E0P-08 REV 01 PAGE 17 of 55 LOCACD
I t
}
Applicable Carry-over steps: , P 3.3 Jf ES actuates, THEN ensure actuation... ! O 3.7 3.8 3.9 Start at least 1 RCP when available... Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... Bypass HPI Actuation at 1700# if ASCM exists... i l i RULE #3, EFW CONTROL f 1 Ensure EFW flow limits are NOT exceeded... l 2 Ensure required OTSG level... , 3 JF adequate subcooling margin does N01 exist, ! THEN ensure OTSG levels are continuously progressing towards 80 - 90%... EFW flow should be throttled to prevent OTSG PRESS from decreasi19 > l j 4 100 psi below desired setpoint... l Table 3 j Tsat Monitor Adequate Subcooling Margin: ; RCS Margin
> 1500 psig 30*F ;
1 1500 to 50*F l
> 250 psig i
< 250 to 70*F !
> 150 psig l 5 150 psig SPDS {
S 200*F N/A Table 5 ! OTSG pressure for establishing i natural circulation heat transfer ! Incore - 50*F - 100*F ! Temp Psat Ps.t l 600*F 1035 685 550*F 685 410 500*F 410 235 450*F 235 120 400*F 120 55 i O E0P-08 REV 01 PAGE 18 of 55 LOCACD ! 1
3.0 FOLLOW-UP ACTIONS (CONT'D)
. s~m '
ACTIONS DETAILS 3.19 Vent both hot legs. 1 Establish stable or slightly increasing RC PRESS using MU or HPI flow. 2 Energize and open hot leg high point vent valves. 1 A HOT LEG B HOT LEG DPDP-5A #1 DPDP-5B #1 RCV-157 RCV-163 ! __RCV-158 __RCV-164 N 3 Maintain stable or slightly increasing RC PRESS using MU or i HPI flow. IE RC PRESS can NOT be maintained,
\ THEN close the hot leg high point vents prior to losing adequate subcooling margin, j Refer to Table 3 OTSG heat transfer exists if feeding 3.20 Lower and maintain OTSG Tut 90 - 110*F below OR steaming causes a decrease in Tincere until heat transfer incore temperatures.
is established. 4 Refer to Table 5 , I 3.21 Ensure OTSG levels are [ RULE #3, EFW CONTROL] 80 - 90% i F O , E0P-08 REV 01 PAGE 19 of 55 LOCACD l l
l ~ Applicable Carry-over steps: 3.3 IE ES actuates, THEN ensure actuation... () 3.7 Start at least 1 RCP when available... 3.8 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... 3.9 Bypass HPI Actuation at 1700# if ASCM exists... Table 2 t OTSG Tube to Shell AT Limits: ! Tensile AT Limit: Avg Tshell - ICold $ 100*F Compressive AT Limit: Thot - Avg Tshe11 1 60*F "A" 0TSG shell Temps: A-730, 731, 732, 733, 734, Avg: R-771 "B" OTSG shell Temps: A-735, 736, 737, 738, 739, Avg: R-772 ;
' i ble 4 i Cooldown Limits:
RCP Status RCS Temp Cooldown Limit l 2 1 RCP > 280*F $ 50*F \ hr ! Running ; 280 - 150*F $ 25'F % hr No RCPs RC Press maintained 1 25'F \ hr Running above Nat Circ Curve {}
> 280*F i 5'F \ hr 280 - 150*F i 2.5'F \ hr i
t i l O ! E0P-08 REV 01 PAGE 20 of 55 1.0CACD i i
3.0 FOLLOW-UP ACTIONS (CONT'D) , ACTIONS DETAILS 3.22 Close the hot leg high Ensure closed: , point vents. : A HOT LEG B HOT LEG RCV-157 RCV-163 I RCV-158 RCV-164 3.23 E Incore temperatures are Open the PORV, RCV-10 rising, , THEN open the PORV, E PORV is NOT available, ' AND THEN energize and open all High Point : vent valves: GO TO Step 3.29 in this E0P. High Point Vent valves: , PZR A HOT LEG B HOT LEG DPDP-8A DPDP-5A DPDP-5B ! SW #13 SW #1 SW #1 RCV-159 RCV-157 RCV-163 . RCV-160 RCV-158 RCV-164 0 3.24 E a dry OTSG exists, o Tensile limit is 100*F, tubes colder THEN ensure tube-to-shell than shell. . AT is maintained within limits. E tensile limit is approached, THEN reduce cooldown rate. o Compressive limit is 60*F, tubes j hotter than shell. l E compressive limit is approached, THEN increase cooldown rate using , TBVs or ADVs without exceeding i cooldown rate limits. Refer to Table 2 Refer to Table 4 O : E0P-08 REV 01 PAGE 21 of 55 LOCACD ) i
l t Applicable Carry-over steps: i 3.3 If ES actuates, THEN ensure actuation... t i O 3.7 3.8 Start at least 1 RCP when available... Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... 3.9 Bypass HPI Actuation at 1700# if ASCM exists... ll RULE #2, HPI CONTROL 1 Ensure FULL HPI... 2 HPI MUST be throttled to prevent exceeding Pump runout, NDT limit, PTS . guidelines... 3 HPI MAY be throttled anytime adequate subcooling exists based on incores. , l 4 MUP recirc valves MUST be open prior to throttling HPI flow < 200 gpm/ pump... 5 HPI Termination Criteria...
)
l l 1 O E0P-08 REV 01 PAGE 22 of 55 LOCACD l
3.0 FOLLOW-UP ACTIONS (CONT'DJ () ACTIONS DETAILS mt Performance of the next step may require prompt resetting of HPI bistables to prevent upset to RC inventory balance. 3.25 If PZR is full, 1 Ensure letdown OR break flow THEN establish solid plant exists pressure control. 2 Ensure makeup OR HPI flow exists [ RULE #2, HPI CONTROL] 3 Open MU recirc valves prior to throttling HPI < 100 gpm/ pump 4 Maintain ASCM by balancing MU/HPI and Letdown / Break flow rates. 3.26 If a PZR steam bubble does 1 Turn on all PZR heaters. NOT exist, (_ AND a PZR steam bubble is 2 WHEN PZR TEMP is Ts.t for desired, desired RC PRESS, THEN establish a steam THEN establish a PZR bubble by bubble in the PZR. lowering level to 80 - 120" Continue in this E0P ! 3.27 IE OTSG heat transfer has OTSG heat transfer exists if feeding , NOT been established, OR steaming causes a decrease in ! IH{N incore temperatures. i GO T0 step 3.29 of this E0P. , I l l l r l O E0P-08 REV 01 PAGE 23 of 55 LOCACD ! l I
l 4 Applicable Carry-over steps: i 3.3 IE ES actuates, THEN ensure actuation... ; 3.7 Start at least 1 RCP when available... ! 3.8 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... ! 3.9 Bypass HPI Actuation at 1700# if ASCM exists... ; I i
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i i 1 l 1 i i l O , I i i I i t i t i l I; 4 !, O i i E0P-08 REV 01 PAGE 24 of 55 LOCACD i l
t 3.0 FOLLOW-UP ACTIONS (CONT'D) () ACTIONS DETAILS 4 NOTE: Rapid pressure reduction of the RCS to 5 500 psig, may cause PZR level to ! read 50" higher than actual 3.28 IE HPI is NOT required to 1 Ensure all High Point vent maintain PZR level valves are closed: . 2 100", THEN: Hotlegs 1 Ensure closed: PZR A B - o PORV
--RCV-159 --RCV-157 --RCV-163 o High Point vent valves RCV-160 RCV-1 it RCV-164
] l 2 Stop HPI l 2 Stop HPI:
- 3 GO TO E0P-10, Plant i Stabilization, 1 Ensure MVP recirc valves beginning with step are open
3.1.
; o MUV-53 o MUV-257 2 Ensure HPI injection
. valves are closed: ! 1 l o MUV-23 , i o MUV-24 > i o MUV-25 o MUV-26 L l 3 Ensure 1 MVP is running. 1 J P ( ! j E0P-08 REV 01 PAGE 25 of 55 LOCACD j t
Applicable Carry-over steps: . j 3.3 J1 ES actuates, THEN ensure actuation... J 3.7 Start at least 1 RCP when available... ; 3.8 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... i 3.9 Bypass HPI Actuation at 1700# if ASCM exists... ; l l RULE #2, HPI CONTROL i 1 1 Ensure FULL HPI... ! 2 HPI MUST be throttled to prevent exceeding Pump runout, NDT limit, PTS guidelines... j 3 HPI MAY be throttled anytime adequate subcooling exists based on , incores. l 4 MVP recirc valves MUST be open prior to throttling HPI flow < 200 i gpm/ pump... 5 HPI Termination Criteria. . . ; Table 3 ,
- Tsat Monitor Adequate Subcooling Margin
- )
RCS Margin !
> 1500 psig 30*F 1
s 1500 to 50*F i
> 250 psig r
d
< 250 to 70*F
> 150 psig
- 1 150 psig SPDS ;
1 1 200*F N/A , i i Table 4 . Cooldown Limits: , r RCP Status RCS Temp Cooldown Limit l 4
> 1 RCP > 280*F S 50*F % hr :
- Running l 5
280 - 150*F 5 25'F \ hr } 1 ; No RCPs RC Press maintained 5 25'F ) hr i Running above Nat Circ Curve } j j > 280*F S 5'F \ hr ; e 280 - 150*F s 2.5'F % hr f i i i !O E0P-08 REV 01 PAGE 26 of 55 LOCACD j i 1 i
3.0 FOLLOW-UP ACTIONS (CONT'D) () ACTIONS DETAILS i STATVS I o ASCM exists ; o RCFs running if available o RC 'eak exists which requires HPI to maintain PZR level QR OTSGs are NQJ available for heat transfer. 3.29 Ensure HPI flow is [ RULE #2, HPI CONTROL] ! controlled. i 3.30 IE 4 RCPs are operating, Maintain RCP-1B operating for maximum THEN stop 1 RCP before RC PZR spray capability. Temperature reaches 410*F. l 3.31 Maintain cooldown rate o IF OTSG heat transfer is being used within limits. to maintain desired cooldown rate, ! THEN control cooldown rate using O Refer to Table 4 TBVs or ADVs. j o if excessive cooldown exists due to 4 RCS leak flow, < . THEN additional RCPs may be started ~
! to reduce the cooldown rate. DO NOT run > 3 RCPs if RC temperature is
< 410*F.
i 3.32 WHEN RCS PRESS is < 900 Bypass LPI actuation: psig, AND Adequate SCM exists, CHAN A CHAN B THEN bypass LPI actuation. ; RC4 RC4 Continua in this E0P. RC5 RC5 r RC6 RC6 Refer to Table 3, ASCM O ~ E0P-08 REV 01 PAGE 27 of 55 LOCACD
1 I Applicable Carry-over steps: 3.3 If ES actuates, IBM ensure actuation... ; O 3.7 3.8 Start at least 1 RCP when available... Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... ! 3.9 Bypass HPI Actuation at 1700# if ASCM exists... f 3.32 Bypass LPI Actuation at 900# if ASCM exists... ! i Table 3 ! Tsat Monitor Adequate Subcooling Margin i RCS Margin !
> 1500 psig 30'F !
s 1500 to 50*F ,
> 250 psig <
s 250 to 70*F
> 150 psig s 150 psig SPDS i
s 200*F N/A , O i h 1 l O ! E0P-08 REV 01 PAGE 28 of 55 LOCACD
i I 3.0 FOLLOW-UP ACTIONS (CONT'D) ! () ACTIONS DETAILS 3.33 WHEN RCS PRESS is < 700 1 Notify AB Operator to remove psig, locks and close Bkrs for CFT AND Adequate SCM exists, isolation valves at IHfH isolate CFTs. ES MCC 3AB: . l Refer to Table 3. o CFV-5 : o CFV-6 ! 2 Close: i o CFV-5 o CFV-6 , 3.34 WHEN RCS PRESS is < 550 Ensure RCV-10 switch in psig, NNI Cabinet #3 is selected to the THEN ensure PORV is " LOW" position, t selected to the Low ; Temperature Overpressure Protection Mode. i i l l E0P-08 REV 01 PAGE 29 of 55 LOCACD
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l
l Applicable Carry-over steps: i 3.3 If ES actuates, THEN ensure actuation... , 3.7 Start at-least 1 RCP when available... > i E i w
-i
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i i I i i i i i h l O ! E0P-08 REV 01 PAGE 30 of 55 LOCACD I l f
3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS 3.35 WHEN BWST LEVEL is s 5', 1 Verify RB WATER level is 1 2.2' JEl{ transfer LPI suction : from BWST to RB sump. 2 Throttle LPI flow for each train to = 2000 gpm using LPI valves: Continue on in this E0P t o DHV-5 o DHV-6 3 Ensure 1200 gpm and " LOCAL" are , selected for: ' o BSV-3 o BSV-4 4 Open RB sump outlet valves: , o DHV-42 o DHV-43 ; 5 WHEN RB sump outlet valves are open, THEN close BWST outlet valves: o DHV-34 o DHV-35
"*r' " "' ' ' ' " " 1' ""'
CJ pumps are running. 6 Establish HPI suction from LPI by opening. o DHV-Il o DHV-12 7 LF_ only 1 LPI pump is operating, THEN ensure MVP suction cross : tie valves are open. ! o MUV-62 o MUV-69 . 8 Close BWST suctions to HPI while observing for signs of cavitation: l o MUV-73 o MUV-58 i i l l O E0P-08 REV 01 PAGE 31 of 55 LOCACD l
i i i Applicable Carry-over steps: 3.3 Jf ES actuates, THEN ensure actuation... l
} _
3.35 Swap to RB sump suction at 5' BWST level. . . I
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1 h i I h h r i h E l E0P-0B REV 01 PAGE 32 of 55 LOCACD
3.0 FOLLOW-UP ACTIONS (CONT'D) () ACTIONS DETAILS 3.36 Trip all running RCPs Refer to Figure 1, RCP NPSH Curves , prior to exceeding operating curve limit. 3.37 WHEN RCS PRESS is s 200 psig, THEN continue in this E0P. , 3.38 IE both LPI trains are available, THEN establish Decay Heat Removal per OP-404, Section 4.12. 3.39 IE Decay Heat Removal has The TSC will provide any necessary been established per OP- guidance from this point. O 404, section 4.12, THEN EXIT this E0P. l i E0P-08 REV 01 PAGE 33 of 55 LOCACD
i I Applicable Carry-over steps: l 3.3 lE ES actuates, THEN ensure actuation... , f 3.35 Swap to RB sump suction at 5' BWST level... g 1 i J i j a s O : I i t i l l L i O ! E0P-08 REV 01 PAGE 34 of 55 LOCACD
3.0 FOLLOW-UP ACTIONS (CONT'D1 ACTIONS DETAILS 3.40 WHEN RCS PRESS is s 200 1 Ensure BWST outlet valve for psig, available train is open. . A_tiQ is decreasing, IliM establish LPI flow, o DHV-34, A-Train o DHV-35, B-Train 2 Ensure available LPI train pumps are operating: DCP-1A DCP-1B RWP-3A RWP-3B DHP-1A DHP-1B 3 Open LPI injection valve on available train: i o DHV-5, A-Train , o DHV-6, B-Train 4 Ensure MVP recire valves are open: 7 O o MUV-53 o MUV-257 ' 5 Throttle HPI to maintain minimum ASCM. 3.41 WHEN LPI flow is 1 LPI flow maintaining ASCM. maintaining ASCM, AND HPI injection valves 2 All HPI Valves are closed: are closed, THEN stop all MUPs. o MUV-23 o MUV-24 i o MUV-25 o MUV-26 3 Stop All MUPs: # o MUP-1A i o MVP-1B ! 4 o MVP 1C l 3.42 Exit this E0P. The TSC will provide any necessary i guidance from this point. l O E0P-08 REV 01 PAGE 35 of 55 LOCACD
i Applicable Carry-over steps: 3.3 1.E ES actuates, THEN ensure actuat'on... O 3.8 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... RULE #4, PRESSURIZED THERMAL SH0CK 1 The PTS guidelines MUST be implemented when either of the following , conditions exist: ! o forced RCS Flow: Tcoid < 380*F AND cooldown rate exceeds T.S. ! limit. : o EQ Forced RCS Flow: RCPs OFF AND HPI flow exists. ; 2 PTS guidelines: Ensure minimum adequate subcooling margin is maintaine Table 4 Cooldown Limits: ; RCP Status RCS Temp Cooldown Limit 2 1 RCP > 280*F 1 50*F \ hr Running 280 - 150*F 1 25'F \ hr e No RCPs RC Press maintained 1 25'F \ hr Running above Nat Circ Curve
> 280*F ~< 5'F \ hr O 280 - 150*F 1 2.5'F \ hr Table 5 OTSG pressure for establishing natural circulation heat transfer Incore - 50*F - 100*F Temp Psat Psat 600*F 1035 6535 550*F 685 410 500*F 410 235 .
450*F 235 120 , 400*F 120 55 i r E0P-08 REV 01 PAGE 36 of 55 LOCACD
3.0 FOLLOW-UP ACTIONS (CONT'D) () ACTIONS DETAILS STATUS o ASCM does NOT exist o OTSG heat transfer may be available o RULE 4, Pressurized Thermal Shock guidelines are applicable. 3.43 IE LPI flow is 21000 gpm in each injection line, THEN GO T0 step 3.61 in this E0P. 3.44 WHEN RCS PRESS < 600 psig, o Ensure CFV-5 and CFV-6 are open. THEN ensure CFT levels lower. o Observe CFT levels lower. Continue in this E0P. O 3.45 WHEN LPI 500 psig IE LPI FLOW < 300 gpm, actuation occurs, THEN refer to Enclosure 2, LPI Low IHEN bypass actuation and Flow Control. ensure both LPI pumps are running with flow > 300 gpm. Continue in this E0P. 3.46 IE Incore temperatures are Refer to Table 4 lowering AND cooldown rate is adequate, THEN GO T0 step 3.58 in this E0P. 4 3.47 IE Incore temperatures are Establish and maintain OTSG Ps.t 40 - rising OR cooldown rate is 60*F below Tincore until heat transfer less than desired, is established. THEN estab ish 0TSG heat transfer. Refer to Table 4 : Refer to Table 5 O , E0P-08 REV 01 PAGE 37 of 55 LOCACD
Applicable Carry-over steps: r 3.3 IE ES actuates, THEN ensure actuation... 3.8 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... l]m 3.44 WHEN RC Pressure is < 600#, ensure CFTs lower... - 3.45 WHEN LPI 500# actuation occurs, Bypass and ensure > 300 gpm... O O E0P-08 REV 01 PAGE 38 of 55 LOCACD
3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS 3.48 E OTSG heat transfer has OTSG heat transfer exists if feeding been established, OR steaming causes a decrease in THEN incore temperatures. GO T0 step 3.58 of this E0P. 3.49 E RCPs are NOT available RCPs are available for bumping if for bumping, power is available. THEN GO T0 step 3.57 in this E0P. 3.50 Bump 1 RCP. 1 Ensure PORV is closed 2 Bump RCP in loop with highest OTSG level first. 3.51 JF OTSG heat transfer OTSG heat transfer exists if feeding exists after allowing RC OR steaming causes a decrease in Pressure to stabilize, incore temperatures. THEN GO T0 step 3.58 in this E0P. 3.52 Bump remaining available Repeat steps 3.50 and 3.51 for the RCPs allowing RC Pressure remaining available RCPs: to stabilize between bumps. RCP-1A RCP-1B RCP-lC RCP-ID O E0P-08 REV 01 PAGE 39 of 55 LOCACD
Applicable Carry-over steps: 3.3 IE ES actuates, THEN ensure actuation... O 3.8 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... 3.44 WHEN RC Pressure is < 600#, ensure CFTs lower... 3.45 WHEN LPI 500# actuation occurs, Bypass and ensure > 300 gpm... Table 5 : 0TSG pressure for establishing natural circulation heat transfer Incore - 50*F - 100*F Temp Psat Psat 600*F 1035 685 , 550*F G85 410 500*F 410 '235 450*F 235 120 400*F 120 55 ! O s 4 1 t O E0P-08 REV 01 PAGE 40 of 55 LOCACD l l
r 3.0 FOLLOW-UP ACTIONS (CONT'D1 ACTIONS DETAILS 3.53 Lower and maintain OTSG Use TBVs or ADVs. Psat 90 - 110 F below Ttncore until OTSG heat Refer to Table 5 transfer is established. i 3.54 Bump 1 RCP. 1 Ensure PORV is closed. ; 2 Bump RCP in loop with highest [ OTSG 1evel. i 3.55 IE OTSG heat transfer OTSG heat transfer exists if feeding i exists after allowing RC Of steaming cause a decrease in ' Pressure to stabilize, incore temperatures. THEN : GO T0 step 3.58 in this E0P. 3.56 Bump remaining available Repeat steps 3.54 and 3.55 for the i RCPs allowing RC Pressure remaining available RCPs: to stabilize between , bumps. RCP-1A _ RCP-1B RCP-lC RCP-ID ! 3.57 If Incore temperatures are Open the PORV, RCV-10. rising, ; THEN open the PORV. 1 If PORV is NOT available, High Point Vent valves: THEN energize and open all High Point vent valves: PZR A HOT LEG B HOT LEG , GO TO Step 3.59 in this E0P. DPDP-8A DPDP-5A DPDP-5B l SW #13 SW #1 SW #1 RCV-159 RCV-157 RCV-163 RCV-160 RCV-158 RCV-164 i E0P-08 REV 01 PAGE 41 of 55 LOCACD
i 8 Applicable Carry-over steps: 3.3 IE ES actuates, IHEN ensure actuation... O1 3.8 Bypass EFIC Isolation actuation when OTSG Press 725 - 600#... , 3.44 WHEN RC Pressure is < 600#, ensure CFTs lower... i 3.45 WHEN LPI 500# actuation occurs, Bypass and ensure > 300 gpm... t Table 4 : Coofdown Limits: l RCP Status RCS Temp Cooldown Limit ;
> 1 RCP > 280*F s 50*F \ hr
- Running 280 - 150*F 1 25'F \ hr No RCPs RC Press maintained s 25'F \ hr Running above Nat Circ Curve
> 280*F s 5'F \ hr 280 - 150*F s 2.5'F \ hr i
O l i l l () i E0P-08 REV 01 PAGE 42 of 55 LOCACD .
)
a I 3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS I 3.58 E OTSG heat transfer is o Control cooldown rate using TBVs or being used to increase ADVs. cooldown rate, ' THEN maintain cooldown Refer to Table 4 rate within limits. 3.59 E at any time adequate subcooling margin is restored, J]iG GO TO Step 3.7 in this E0P. 3.60 !!J!ifl{ RCS PRESS is 1200 1 Ensure DHV-34 and DHV-35 are psig, open. AND is decreasing, THEN ensure LPI operation. 2 Ensure DHV-5 and DHV-6 are open. 3 Ensure all LPI train pumps are operating: , DCP-1A DCP-1B RWP-3A RWP-38 DHP-1A DHP-1B 4 Ensure DHV-Il0 and DHV-Ill operate correctly. 3.61 WHEN LPI flow is 21000 1 Notify AB Operator to energize gpm in each injection CFT isolation valves at , line, ES MCC 3AB: THEN isolate CFTs. o CFV-5 o CFV-6 2 Close: o CFV-5 o CFV-6 O > E0P-08 REV 01 PAGE 43 of 55 LOCACD 1
t l 1 Applicable Carry-over steps: -l 3.3 IE ES actuates, THEN ensure actuation... ! 3.59 IF ASCM is restored, GO TO Step 3.7 in this E0P... ! Os , k I i l t t t f i i I r 4
.t
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i I i i i E0P-08 REV 01 PAGE 44 of 55 LOCACD i l f
l 3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS l a CAUTION: 1 Placing the ECCS on RB sump suction may cause high radiation levels in < l the auxiliary building. 3.62 WHEN BWST LEVEL is 1 5', 1 Verify RB WATER level is 2 2.2' THEN transfer LPI suction from BWST to RB sump. 2 Throttle LPI flow for each train to = 2000 (1800 - 2200) gpm Continue on in this procedure. using LPI valves: o DHV-5 o DHV-6 3 Ensure 1200 gpm and " LOCAL" are selected for: o BSV-3 o BSV-4 4 Open RB sump outlet valves: o DHV-42 o DHV-43 5 WHEN RB sump outlet valves are open, ' THEN close BWST outlet valves: o DHV-34 o DHV-35 i Perform steps 6, 7 & 8 only lE HPI pumps are running. 6 Establish HPI suction from LPI by opening. ! o DHV-Il o DHV-12 l 7 __ 1E only 1 LPI pump is operating, THEN ensure open: o MUV-62 o MUV-69 j 8 Close BWST suctions to HPI while . observing for signs of ' cavitation: o MUV-73 o MUV-58 . t f E0P-08 REV 01 PAGE 45 of 55 LOCACD !
Applicable Carry-over steps: e 3.3 IE ES actuates, THEN ensure actuation... 3.59 If ASCM is restored, GO TO 3.7 in this E0P... , 3.62 Swap to RB sump suction at 5' BWST water level... : I i 4 0 t I ( l E0P-08 REV 01 PAGE 46 of 55 LOCACD l
i t 3.0 FOLLOW-UP ACTIONS (CONT'D) () ACTIONS DETAILS 3.63 EHEN LPI flow is 21000 1 Open MVP recirc valves: gpm in each injection line : for 1 20 minutes, o MUV-53 t THEN stop HPl AND stop all o MUV-257 l 4 RCPs. 2 Close all HPI injection valves: o MUV-23 o MUV-24 : o MUV-25 , o MUV-26 3 Stop all MUPs 4 Stop all RCPs 3.64 HHEN 'RB PRESS is < 10 psig 1 Ensure BSP-IA and BSP-1B are , and NOT rising, stopped. THEN ensure RB spray is stopped. 2 ___ Ensure BSV-3 and BSV-4 are , O Continue in this E0P' closed. t [ O E0P-08 REV 01 PAGE 47 of 55 LOCACD
Applicable Carry-over steps: 3.3 JE ES actuates,-THEN ensure actuation... O 3.59 If ASCM is restored, GO TO 3.7 in this E0P... 3.62 Swap to RB sump suction at 5' BWST water level... 3.64 WHEN RB Press < 10# and decreasing, stop RB Spray... i i O ' O E0P-08 REV 01 PAGE 48 of 55 LOCACD I
9 3.0 FOLLOW-UP ACTIONS (CONT'D) ! 4 () ACTIONS DETAILS 3.65 WHEN RCS PRESS < 150 psig, Ensure all High Point vents are IHfB ensure PORV and High closed: Point vents are closed. , Continue in this E0P. Hotlegs PZR A B i RCV-159 RCV-157 RCV-163 RCV-160 RCV-158 RCV-164 3.66 Maintain RB cooling fans in operation with SW cooling until H z concentration is known. 3.67 Notify the Emergency Refer to EM-308, Post Accident Os Coordinator of the RB Monitoring of the RB Atmosphere. atmosphere H 2 ' concentration. 3.68 WHEN RB PRESS is < 4 psig, THEN ensure RBIC is reset. Continue in this E0P. ( E0P-08 REV 01 PAGE 49 of 55 LOCACD
Applicable Carry-over steps: , - 1 3.3 If ES actuates, THEN ensure actuation... ; 0 3.59 If ASCM is restored, GO TO 3.7 in this E0P. .. 3.62 Swap to RB sump suction at 5' BWST water level... 3.64 WHEN RB Press < 10# and decreasing, stop RB Spray... l 3.65 WHEN RC Press < 150#, Ensure P0RV & HPVs closed... ; 3.68 WHEN RB Press < 4#, Ensure RBIC is reset... l I i-4 1 ( i 1 E0P-08 REV 01 PAGE 50 of 55 LOCACD t
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3.0 FOLLOW-UP ACTIONS (CONT'D) () ACTIONS DETAILS 3.69 WHEN LPI is supplying core 1 Ensure the following valves are ' cooling, closed: . THEN stop OTSG cooling. . VALVE A OTSG B OTSG i MBV .FWV-30 FWV-29 l LLBV FWV-31 FWV-32 ; SUCV FWV-40 FWV-39 MS to EFP-2 MSV-55 MSV-56 , MS to MSRs MSV-30 MSV-29 __MSV-32 __MSV-31 MS to TBVs MSV-53 MSV-54 and MFWPS i EFW Block EFV-Il EFV-32 , Valves EFV-14 EFV-33 , 2 Stop MFW pumps FWP-2A FWP-2B FWP-1A FWP-1B 3 Stop EFW pumps o EFP-1 o EFP-2 3.70 WHEN LPI suction is o RB water level is 2 2.2' aligned to the RB sump per step 3.62, o LPI is on RB sump suction THEN establish Long Term Post-Accident Cooling per o ALL applicable steps in this E0P OP-404, section 4.13. have been completed. The TSC will provide guidance from this point. O E0P-08 REV 01 PAGE 51 of 55 LOCACD i t k
i l
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)
t i 1 s t l l i I L t t i f
- h' i
d BLANK PAGE y i f I r i t i f ] l i i
-t i
i I i i t t E0P-08 REV 01 PAGE 52 of 55 LOCACD ; 1 < t
v. Fioure 1 o 400 RCP NPSH. Curves
. . .- .. . . . . )
350 . . l f O U 3% - . , , , Q. ! v - . . . W ! g . 3 250 M g . 1 A41B g: ; Lu l i [ ~ a ; 2A-08 or OA-2B y
@ 200 0 :
T , , , l O. > t 150 - ASCM ' CURVE - J .s g . . Z
- t t
.i F( 100 T - . l SAT CURVE ! , [ '
]
O . 50 1 0 50 100 150 200 250 300 350 400 I RCS TEMPERATURE (*F) i O The acceptable region is above the applicable NPSH curve.
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i i E0P-08 REV 01 PAGE 53 of 55 LOCACD 1 i
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Fiaure 2 Cooldown Curve for Natural Circulation and Forced Flow 2600 NORMAL POST , TRIP WINDOW 2400 , - - 2200 s NDT CURVE: 2000
\ ~ .ASCM 1800 CURVE
$ 1600 Ti
- c. NATURAL
- 1400 CIRCULATION: ;
@ CURVE l 5 1200 - -- -- --- -- - -- -- - - - - - -- -- -
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$ 1000 )
0 0 800 ; E x M SATURATION '
- CURVE 400 200 0 1 100 200 300 400 500 600 700
.RCS TEMPERATURE
- F ;
Acceptable region is: o below and to the right of the NDT curve o above and to the left of the ASCM curve , o above and to the left of the Natural Circulation curve if RCPs I are off and cooldown rate > 10 F/hr E0P-08 REV 01 PAGE 55 of 55 LOCACD l
. RULES REV 01 DATE 08/13/93 E0P-13 O E0P RULES Rule 1: Loss of Subcooling Margin Rule 2: HPI Control Rule 3: EFW Control Rule 4: Pressurized Thermal Shock
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nu a'r !' y O i i 1 1 This ProcedureMdresses Safety Related Components Approved by MNP0 2.L Pu Wan Date f .i'o-73 n E0P-13 PAGE 1 of 9 RULES
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RULE #1 LOSS OF SUBC00 LING MARGIN O > IE adequate subcooling margin is lost, IllEN perform the following: 1 Trip ALL RCPs immediately. IE RCPs were not tripped within 2 ; minutes after losing subcooling i margin, , THEN reduce running RCPs to 1/ loop. 2 Ensure FULL HPI: 1 Open MVP suction valves from BWST: . l 0 MUV-73 o MUV-58 2 Ensure 2 MVPs and their cooling I water pumps are operating. 3 Open all 4 HPI valves: MUV-23 MUV-24 MUV-25 MUV-26 O 4 Close MUP recirc valves: o MUV-53 o MUV-257 ! 3 Ensure HPI flows are balanced. Close MVV-27, Normal MU isolation IE 1 narrow range HPI line flow indicates off scale high and is verified using the wide range ' indication, ; THEN isolate the high line, , AND balance the other 3 lines. 1E NOT, THEN balance all 4 HPI ! lines. O E0P-13 REV 01 PAGE 3 of 9 RULES
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l RULE #2 , HPI CONTROL l O 1 Ensure FULL HPI. 1 Open MVP suction valves from BWST: o MUV-73 o MUV-58 2 Ensure 2 MVPs and their cooling water pumps are operating. 3 Open all 4 HPI valves: ! MUV-23 MUV-24 MUV-25 MUV-26 4 Close MVP recirc valves: , o MUV-53 o MUV-257 2 HPI MUST be throttled to prevent JF MVP recirc valves are open, [ exceeding: IHEN add 100 gpm for each running MVP ! to the indicated flow. , o Pump runout
- Maximum allowable flow to prevent !
o NDT limit runout is: o PTS guidelines o 1 MVP, 540 gpm o 2 MUPs, 1080 gpm o 3 HUPs, 1620 gpm i i 3 HPI MAY be throttled anytime ; adequate subcooling exists based on incares. i 4 MVP recirc valves MUST be open MVP recirc valves: , prior to throttling HPI flow , l < 200 gpm/ pump. o MUV-53 o MVV-257 5 HPI Termination Criteria: LPI 2 1000 gpm/line for 2 20 minutes OR 5 of the following conditions exist: o Adequate Subcooling Margin . o PZR level is 1 100" i o OTSG Heat Removal r o RCS leakage < MUV-31 capacity i E0P-13 REV 01 PAGE 5 of 9 RULES j
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RULE #3 j EFW CONTROL ACTIONS DETAILS I 1 Ensure EFW flow limits are NOT > exceeded. # EFWPs Flow Running Limit I 1 < 1000 2 < 1300 2 Required OTSG 1evel. Inadequate Adequate Subcooling Subcooling Margin Margin No RCPs RCPs 80 - 90% 60 - 70% LLL O 3 E adequate subcooling margin Required EFW flow for manual control: does NOT exist, IEffi ensure OTSG levels are 2 OTSGs available, 2 200 gpm/0TSG continuously progressing towards 80 - 90%. 1 OTSG available, 2 400 gpm 4 While progressing torrds o E adequate subcooling margin does required level, EFW flow should NOT exist, be throttled to prevent OTSG THEN do NOT throttle total EFW flow PRESS from decreasing > 100 psi < 400 gpm. below desired setpoint. o E adequate subcooling margin exists, THEN EFW flow may be throttled as long as OTSG level is NOT allowed ; to decrease. 1 i 4 l E0P-13 REV 01 PAGE 7 of 9 RULES I i J l
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T RULE #4 PRESSURIZED THERMAL SHOCK 1 The PTS guidelines MUST be o forced RCS Flow: implemented when either of the Teoid < 380*F AND cooldown rate following conditions exist: exceeds Technical Specifications limit. o NQ Forced RCS Flow: RCPs 0FF AND HPI flow exists. 2 PTS guidelines: o Ensure minimum adequate subcooling margin is maintained. o IF cooldown is required, l THEN maintain cooldown rate within Tech Spec limits. - o PTS guidelines are applicable until an Engineering evaluation has been completed. O i 1 l l i E0P-13 REV 01 PAGE 9 of 9 RULES i}}