ML20204J878
Text
JUN 0 31988 NUMBER
'ITIE REY. ISSUE /DATE EC A 3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev. 3 SATURATED RECOVERY DESIRED A.
PURPOSE This procedure provides actions to cooldown and depressurize the RCS to cold shutdown conditions while minimizing loss of RCS inventory.
B.
SYMPTOMS OR ENTRY CONDITIONS This procedure is entered from:
1.
ECA 3.1. SO~ITt Wrni LOSS OF REACTOR COOLANT-SUBCOOLED RECOVERY DESIRED. Step 11, when RWST level is low without a corres}onding increase in containmnet sump level.
2.
ECA 3.1. SOTR Wrni LOSS OF REACTOR COOLANT SUBCOOLED RECOVERY DESIRED. Step 11, when the niptured SO level is high and plant staff selects saturated recovery method.
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JUN 0 31S88 NUMBER TTILE REY. ISSUE /DATE I
EC A 3.2 SGTR WITli LOSS OF REACTOR COOLANT -
Rev. 3 i
SATURATED RECOVERY DESIRED l
STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED r
7 CAUTUN:
o IF R%'ST LEVEL DECREASES TO LESS THAN 130.000 GALLONS, THE SI SYSTEh! SHOU 1D BE AUGNED FOR RHR RECIRCULATION USING ES 1.3, TRANSFER TO RHR RECIRCULATION.
o RCS PRESSRE SHOULD BE of0NITORED. IF RCS PRESSURE l
DECREASES TO LESS THAN 40S PSIG (635 PSIG FOR ADVERSE CONTAINhfENT), THE U'SI PUhfPS AfUST BE AfANUALLY RESTARTED TO SUPPLY %'ATER TO THE RCS.
o THE FIRST FLEVEN STEPS OF ECA 3.1, SGTR %'ITH LOSS OF REACTOR COOLANT SUBCOOLED RECOVERY DESIRED, SHOULD BE PERFORSfED BEFORE CONTINUING
%'ITH THIS PROCEDURE.
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NOTE:
o FOLDOUT PAGE SHOULD BE OPEN.
o IN THE EVENT A SGTR AND A LEAK TO AThf0 SPHERE OCCUR IN THE SAbfE STEASt GENERATOR AVD RCS PRESSURE IS l
%'ITHIN 400 PSIG OF SG PRESSURE, THE AFFECTED LOOF ISOLATION VALVES CAN BE CLOSED, PROVIDED THE SI Af0V TO THAT LOOP IS ALSO CLOSED.
(SEE ATTACHbfENT B FOR LOOP ISOLATION PROCEDURE).
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1 ADD MAKEUP TO T11E RWST AS NECESSARY:
- a. Locally close blencter outlet to VCT, f
BA-V 354 i
- b. locally open blender outlet to RWST, BA V 391
- c. Place BA FCV !!2C bypass switch in tne on position I
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e JUN 0 31988 NUMBER TITIE REY. ISSUE /DATE ECA 3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED i
fSTEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED i
2 CHECK IF LPSI PUMPS SHOULD BE STOPPED:
- a. Check RCS pressure:
- a. QQ IQ Step 3.
o GREATER THAN 405 PSIG (635 PSIG FOR ADVERSE CONTAINMENT) o STABLE OR INCREASING
- b. Stop LPSI pumps and place in standby 3
CHECK SECONDARY IhTEGRITY:
- a. Check pressures in all SGs -
o All SG pressures -
STABLE OR INCREASING o Steamlinesisolated.
o Feedwaterlinesisolated.
o All SG pressures -
GREATER THAN 100 PSIG E any fat:lted SG ti.QIlsolated,
'IBEN GQ IQ E 2, FAULTED SG ISOLATION, Step 1.
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i CAUTION:
htONITOR DWST LETEL. START ofAKEUP TO DWST BEFORE LEVEL DECREASES TO 54,000 GALLONS.
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4 CIIECK IhTACT SG LEVELS:
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- a. Check wide range levels -
- a. Mainta!n total AUX (eedwater flow 0:1 EATER TMAN 63 %
greater than 320 GPM undl wide (67 % FOR ADVERSE range levelin at least one SG is CONTAINMENT) greater than 63 %
(67 % for adverse containment).
- b. Control AUX feedwater flow to
- b. E any SG wide range level continues maintain wide range levels between to increase in an uncontrolled manner, 63 % and 69 %
DEN QQ IQ E 3, (67 % and 69 % for advene ST11AM GENERATOR'iUBE containment)
RUI'TURE, Step 1.
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.IllN 0 319RA NUMBER TTT12 REY. ISSUE /DATE ECA 3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT OBTAINTD NOTEt SHUTDOH'N MARGIN SHOULD BE MONITORED DURING RCS COOLD0%'N.
5 INITIATE RCS COOLDOWN TO COLD SHU'IDOWN:
- a. Maintain cooldown rate in RCS cold legs -
LESS THAN 100' F / HR
- c. Dump steam to the condenser
- c. Manually M locally dump steam from intact SG(s) fmm intact SGs using one 2 more of the following:
- 1. Atmos sheric vent valve.
- 2. Terry Turbine steam supoly valves.
- 3. Hog Jet steam supply va ves.
IE no intact So available, THEN perform one of the fa% win;:
o Use faulted SG.
M o IE RHR system EQIin senice.
THEN use ruptured SG.
6 CHECK RCS SUBCOOLING GQ IQ STEP 17.
BASED ON CORE EXIT THERMOCOUPLES GREATER THAN 32' F (SEE OPPOSITE PAGE FOR ADVERSE COSTAINMENT) 7 CHECK IF SIIS IN SERVICE:
QQ IQ STEP 13.
o Check HPSIpumps-ANY RUNNING 4
M o Check charging pumps -
ANY RUNNING l
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JUN 0 31986 NUMBER TTTU REY. ISSUE /DATE E C A.3.2 SGTR WITH LOSS OF REACTOR COOLANT.
Rev.3 SATURATED RECOVERY DESIRED STEP ACTION /EXPEC"TED RESPONSE RESPONSE NOT OBTAINED 8
PLACE ALL PRZR HEATER CONTROL SWITCHES IN TPO POSITION r
1 CAUTION:
VOIDING MAY OCCUR IN THE RCS DURING RCS DEPRESSURIZATION. THIS WILL RESULT IN A RAPIDLY INCREASING PRZR LEVEL.
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DEPRESSURIZE RCS TO REFILL PRZR:
- a. Use nonnal PRZR spray
- a. Use o,e PRZR PORV.
IE no PORY available,
'IIIEN use auxiliary spray.
- b. Check PRZRlevel.
- b. Con:inue with Step 10.
GREATER THAN 15 %
WHEN PRZR levelis (35 % FOR ADVERSE greater than 15 %
CONTAINMEST)
(35 % for adverse containment)
T11EN do Step 9 c.
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- c. Stop RCS depressurization I
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JUN 0 31988 j
NUMBER TITLE REY. ISSUE /DATE E C A.3.2 SGTR WITII LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED STEP ACr!ON/ EXPECTED RESPONSE RESPONSE NOT OBTAlhTD r
7 CAUTIONt IF RCP SEAL COOUNG FLOW HAD PREVIOUSLY BEEN LOST, THE AFFECTED RCP(s) SHOULD NOT BE STARTED PRIOR TO AN ENGINEERING STATUS EVALUATION.
NOTEt RCPs SHOULD BE RUNIN ORDER OF PRIORITY TO PROVIDE NORMAL PRZR SPRAY.
10 CHECK IF AN RCP SHOULD BE STARTED:
- a. Check all RCPs STOPPED
- b. Check RCS subcooling based on
- b. QQ IQ Step 17, core exit thermocouples -
GREATER TilAN 32' F (SEE OPPOSITE PAGE FOR ADVERSE CONTAINMENT)
- c. Check PRZR level-
- c. RETURNIQ Step 9.
GREATER TTLG' 15 %
(35 % FOR ADVERSE CONTAINMENT)
- d. Try to start an RCP:
- 1. Place a jumper across designated tenm'nals on # 2 horizontal terminal board in upper RCP breaker cabinet:
RCP Terminzl#
W"tre #
1 8 to 9 Pl71P2 to Pl71P4 2
8 to 9 Pl72P2 to Pl72P4 3
8 to 9 Pl73P2 to Pl?3P4 4
8 to 9 Pl74P2 to Pl74P4
- 2. Start oil lift pump
- 3. Insure seal water and component cooling water supplied to RCP
- 4. Insure lower bearing temperature is less than 170* F
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JUN 0 31986 NUMBER TTT1E REY. ISSUE /DATE ECA 3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3
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SATURATED RECOVERY DESIRED STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTALNED 10
- 7. Check open CH TV 240,
C i TV 334.
(sea! water return trip valves)
- 3. Check ogn CC TV 1411
- 9. Open seal water retum MOV
- 10. Start selected RCP i
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JUN 0 31988 NUMBER TTI12 REV. I5SLE/DATE EC A 3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTALS*ED i
NOTE:
o AFTER STOPPING AhT St PUSfP, RCS PRESSURE SHOULD BE ALLOWED TO STABil2ZE BEFORE STOPPING ANOTHER S1 PUMP.
o THE CHARGING AND HPSI PUMPS SHOULD BE STOPPED ON ALTERNATE ECCS TRAINS WHEN POSSIBLE.
I1 CHECK IF ONE CHARGING PUMP SHOULD BE STOPPED:
- a. Two charging pumps RUNNING
- a. GQ IQ Step 12.
- b. Determine required RCS subcooling from table below:
REQUIRED RCS SUBCOOLING (
- F )
HPSI PUMP STATUS CONTAIN3 TENT NORMAL ADVERSE NONT RIINNING 42 224 ONE RUNNING 39 220 l
'lWO RUNNING 39 220 t
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- c. Check RCS subcooling based on core
- c. DO NOT STOP CHARGING PUMP.
i exit thermocou pies -
QQIQ Step 17, GREATER ' LEAN REQUIRED SUBCOOLING l
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- d. Check PRZR kvel-
- d. DO NOT STOP CHARGING PUMP.
GREA'IliR THAN 10 %
RETURN IQ Step 9.
(24 % FOR ADVERSE COhTAINMENT)
- e. Stop one charging pump and place control switch in TPO Page 8 of 22
DON-0 3 F NUMBER EU REV. ISSUE /DAlt" ECA 3.2 SGTR WITH LOSS OF REACTOR COOLANT.
Rev.3 SATURATED RECOVERY DESIRED
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STEP ACTION /EXPECED RESPONSE RESPONSE NOT OBTALNID 12 CHECK IF HPSI PUMP SHOULD BE STOPPED:
- a. Two HPSI pumps RUNNING
- a. GQ IQ Step 12 f.
- b. Detennine required RCS subcooling from table below:
REQUIRED RCS SUBCOOLING (
- F )
PRESSURIZER ONE CHAROING PUMP NO CHARGING PUMP PRESSURE RUNNING RUNNING
( PSIG )
CONTAINMENT CONTAlh3 TEST NORMAL ADVERSE NORMAL ADVERSE 1000 to 2000 58 74 61 77 600 to 1000 61 104 65 105 0 to 600 61 235 65 232
- c. Check RCS subcooling based on core
- c. DO NOT STOP HPSI PUMP.
eut thermocouples -
QQIQ Step 17.
GREATER THAN REQUIRED SUBCOOLING
- d. Check PRZRlevel-
- d. DO NOT STOP HPSI PUMP.
GREADER DIAN 10 %
RETURN IQ Step 9.
(24 % FOR ADVERSE CONTAINMENT)
- e. Stop one HPSI pump Page 9 of 22
Jt)N 0 31988 NUMBER TTTLE REY. ISSUE /DATE ECA.3.2 SGTR WITH LOSS OF REACTOR COOLANT.
Rev.3 SATURATED RECOVERY DESIRED STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED 12
- f. One HPSI and one charging pump -
- f. QQIQ Step 13.
RUNNING
- g. Determine required RCS subcooling from table below:
REQUIRED RCS SUBCOOLING (
- F )
PRESSURIZER PRESSURE CONTAINhiEST
( PSIG )
NORMAL ADVERSE GREATER DIAN 1350 50 85 1300 to 1350 71 114 1200 to 1300 101 139 1000 to 1200 124 166 600 to 1000 143 215 LESS THAN 600 146 313
- h. Check RCS subcooling based on core
- c. DO NOT STOP HPSI PUbiP.
exit thermccouples -
QQIQ Step 17.
GREATER THAN REQUIRED SUBCOOLING
- i. Check PRZR level-
- d. DO NOT STOP HPSI PUhtP.
GREATER THAN 10 %
RETURN IQ Step 9.
(24 % FOR ADVERSE CONTAINMENT) j Stop second HPSI pump
- k. QQIQ step 17 I
13 CONTROL CHARGING FLOW TO MALVTAIN REACTOR COOLASTINVENTORY:
o Maintain RVLIS plenum-GREATER THAN 61 %
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JUN 0 31988 NUMBER TTTLE REV. ISSUE /DATE ECA 3.2 rGTR WITH LOSS OF REACTOR COOLAST -
Rev.3 SATURATED RECOVERY DESIRED STEP ACTION / EXPECTED RESPONSE RESPON3E NOT OBTALNED F
7 CAUTIONt IF RCP SEAL COOL 2NG FLOW HAD PREVIOUSLY BEEN LOST, THE AFFECTED RCP(s) SHOULD NOT BE STARTED PRIOR TO AN ENGINEERING STATUS EVALUATION.
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NOTEt RCPs SHOULD BE RUN IN ORDER OF PRIORITY TO PROVIDE NORSfAL PRZR SPRAY.
14 CIECK RCP STATUS:
- a. Check RCPs -
- a. Try to start one RCP:
AT LEAST ONE RUNNING
- 1. Estabiish conditions for starting an RCP:
- a. Place a jumper across designated terminals on # 2 horizontal temunal board in upper RCP breaker cabinet:
RCP Tenninal#
Wire #
1 8 to 9 Pl71P2 to Pl71P4 2
8 to 9 Pl72P2 to Pl72P4 3
8 to 9 Pl73P2 to Pl73P4 4
8to9 Pl74P2 to Pl74P4
- b. Start oil lift pump.
- c. Insure seal water and component cooling water supplied to RCP.
- d. Insure lower bearing temperature is less than 170* F.
(seal water retum trip valves)
- 2. Start selectw! RCP, IE RCP can SQI be started, THEN verify natural circulation (SEE ATTACHMENT A).
IE natural circulation FQI verified.
THEN increase dumping steam.
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JUN 0 31988 NUMBER EH REY. ISSUE /DAH ECA 3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED STEP ACTION /EXPECTEL RESPONSE RESPONSE NOT OBTALN*ED 14
7 CAUTION:
VOIDING MAY OCCUR IN THE RCS DURING RCS DEPRESSURIZATION. THIS Will RESULT IN A RAPIDLY INCREASING PRZR LEVEL.
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J 15 DEPRESSURIZE RCS TO SATURATION AT CORE EXIT:
- a. Determine saontion pressure for core exit thermocouple temperature b Use normal PRZR spray
- b. Use one PRZR PORV.
IE no PORY available, THEN use auxiliary spray,
- c. Turn on PRZR heaters as necessary
- c. Depressurize RCS until either one of the following conditions is satisfied:
o PRZR level -
GREATER 1RAN 76 %
(69 % FOR ADVERSE CONTAINMENT) 2 o RCS pressure AT SA*IURATION (AS DETERMINED IN STEP 15 a.)
a 16 VERIFY ADEQUATE SHVIDOWN MARGIN:
- a. Sample RCS
- b. Sample ruptured SG(s)
- c. Check shutdown margin -
- c. Borate RCS as necessary.
ADEQUATE Page 12 of 22
JUN 0 31988 t
NUMBER
'ITTIE REY. ISSUE /DATE ECA 3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT OBTAINED 17 VERIFY SI FLOW NOT REQUIRED:
- a. Check core exit thermocouples -
- a. Increase dumping steam.
DECREASING IE core exit thermocouples do b'QIdecrease, IBF.fi manually operate SI pumps as necessary,
- b. Check RVLIS alenum indication -
- b. Manually operate SI pumps GREATER TisAN 61 %
as necessary.
IE NO RCP RUNNING 18 CliECK IF DIESEL GENERATORS SHOULD BE STOPPED:
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- a. Ven'fy ac emergency buses energized -
- a. Try to restore off site power to BOTH TRAINS BY OFF SITE both trains.
PJWER (SEE OPPOSITE PAGE)
BUSES 8,4 and 5 IE b'0I restored.
Ab32 111EN check the following equipement BUSES 9,6 and 7 loaded on the ac emergency buses:
1 1.MCC 5.
- 2. Control air compressors.
- 3. Semi vital 120 V buses.
- 4. Closed cooling system pumps.
- 5. Battery charger I A.
- 6. One component cooling water pump.
- 7. One service water pump for each diesel generator.
- 8. IE semce wateris supplied to RHR heat exchangers, THEN use at least two service water pumps.
- 9. Start CARFANS as required to limit containment pressure and temperature,
- b. Stop any unloaded diesel generator and place it in standby (SEE OPPOSITE PAGE)
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JUN 0 31988 NUMBER iiikli REV. ISSUEUDATE ECA 3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 i
SATURATED RECOVERY DESIRED STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT OBTAINTD 19 MINIMIZE SECONDARY SYSTEM CONTAMINABON:
o Check ruptured SG(s) isolated o Close condenser high level dump to DWST ( CD V 634 )
20 CHECK RCP COOLING SYSTEMS:
ESTABLISH NORMAL COOLING FLOW TO RCPs, o RCP CCW System flow-NORMAL IN ACCORDANCE WITH, o RCP sealinjection flow NORMAL NOP 2.81, OPERADON OF COMPONENT COOLING SYSTEM, AM2 NOP 2.61.
SEAL WAER STARWP NORMAL OPERATION.
21 CHECK RCP SEAL REWRN STOP AFFECED RCP(s).
FLOWS GREATER THAN O.2 GPM 22 CllECK SOURCE RANGE DEECTORS ENERGIZED:
- a. Check intermediate range flux -
- a. Continue with step 23, LESS THAN 5 x 1010 AMPS WHEN less than 5 x 10'10 AMPS, T11EN do steps 22 b, c and d.
- b. Verify source range detectors -
- b. Manually energire source range ENERGIZED detectors.
- c. Transfer nuclear flux recorders to source range scale
- d. Transfer SUR meters to source range l
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JUN 0 31986 NUMBER TTIM REY. !SSULDATE I
EC A 3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED 5TEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAWED 23 SIIUT DOWN UNNECESSARY PLAhT EQUIPMENT i
- a. Stop one main feedwater pump
- b. Stop one condensate pump
- c. Place standby heater drain pump in TPO
- d. Place running heater drain pump in TPO r
7 CAUTION:
FEEDWATER FLOW SHOULD NOT BE ESTABUSHED TO ANY RUPTURED SG WHICH IS ALSO FAULTED UNLESS NEEDED FOR RCS COOLDOHN.
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24 CHECK RUPTURED SG(s) WIDE REFILL RUPTURED SG(s)TO 69 %
RANGE LEVEL USING AUX FEEDWAT11R FLOW.
GREADiR DIAN 63 %
(67 % FOR ADVERSE IE E!DIER ONE OF DIE CONTAINMENT)
FOLLOWING CONDITIONS OCCLPS, IliEN STOP AUX FEEDWATER FLOW TO THE RUPTURED SG(s)
UNLESS NEEDED FOR RCS COOIDOWN:
o Rupnurd SG(s) pressure decreases in an uncontro!!cd manner, j
OR R tured SG(s) pressure increases o
to$35 PSIO.
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JUN 0 31986 NUMBER mu REY. ISSUE /DATE ECA.3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED
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STEP AC110N/ EXPECTED RESPONSE RESPONSE NOT OBTAINED 25 CHECK IF RCPs MUST BE SHUTDOWN:
- a. Check the following:
- a. QQ IQ Step 26.
o Number i seal differendal-LESS lilAN 275 PSIG 2
o Number 1 sealleakoff flow -
LESS THAN 0.2 GPM
- a. Check the following:
- a. GQ IQ Step 27.
o RCS tem xrature -
LESS TEAN 300' F
(.177' F FOR ADVERSE 1
CONTAINMENT) j o RCS pressure -
LESS THAN 300 PSIG (t 310 PSIG FOR ADVERSE CONTAINMENT)
- b. Consult plant engineering staff to determine RHR lineup:
o RIDI system in service IN ACCORDANCE WTDI NOP 2.91.
RHR SYS17.M PLACING SYS17.M IN SERVICE 2
o RHR system in senice IN ACCORDANCE WTni ES l.3, TRANSFER TO RHR RECIRCUAL110N Page 16 of 22
JUN 0 31988 NUMBER TTTil REY. ISSUIUDATE EC A 3.2 SGTR WITH LOSS OF REACTOR COOLANT.
Rev.3 SATURATED RECOVERY DESIRED STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT OBTAINED 27 CHECK RCS TEMPERATURE RETURNIQ SHP 4.
LESS THAN 200' F 28 EVALUATE LONO HRM PLAhT STARJS:
- a. Maintain cold shutdown conditions
- b. Consult plant engineering staff END Page 17 of 22
JUN 0 31988 NUMBER TTTU REY. ISSUE /DATE EC A.3.2 SGTR WITH LOSS OF REACTOR COOLANT.
Rev.3 SATURATED RECOVERY DESIRED i
ATTACHMEhT A 1he following conditions support or indicate natural circulation flow under saturated conditions:
o SG pressures are stable or decnasing.
o RCS temperature based on core exit tknw; couples and average temperature indications is stable or decreasing, o
RCS cold leg temperatures are at saturation temperature for SO pressures.
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JUN 0 31988 NUMBER TTlu REY. ISSUE /DATE E C A.3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED t
STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED A'lTACIBiEST B When the decision has been made to isolate a loop (s) with a ruptured SG, use the fouowing procedure.
1.
Check ruptured SG(s) isolated 2.
Stop RCP in loop (s) with ruptured SG r
7 CAUTION:
IF CONTROL SH' ITCH FOR ANY SHUTDOH'N CHARGING PUMP n'AS TAKEN TO THE TRIP POSITION, THE PUMP (S)
MAY AUTO START %' HEN BOTH Si n'L RELAYS ARE RESET.
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Reset Si and containment isolation:
a, Check containment pressure -
- a. Perform the following:
LESS THAN 5 PSIG
- 1. Open CKT* A13 and B13 in DC panels A and B.
- 2. Reser SI WL Relays.
- 3. E charging pump contml switch (es) are HQIin TFO, THEN restore low discharge pressure auto start for shutdown charging pump (s) by taking pu,mp control switch (es) to the "Trip position then releasing switch (es) to the "Auto" sition.
- 4. QQIQ Ste 4.
b, Reset Si and containment isolation (SEE OPPOSITE PAGE) 4 Close ruptured loop (s) St MOV 5.
Check IF RCS depressurization is required:
- a. Check RCS pressure -
- a. QQ IQ Step 8.
GREATER TIIAN RUFIURED SG(s)
PRESSURE BY 400 PSIG, (180 PSIG FOR ADVERSE COSTAINMENT)
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JUN031388 NUMBER TTIM REY. ISSUE /DATE ECA 3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT OBT/ SED ATTACIBiEhT B 6.
Depressurize. RCS to minimize RCS to SG differential pressure
- a. Use normal PRZR spray a !E letdown in semce, j
TIIEN use auxiliary spray valve.
l IE letdown EQIin service, THEN use one PRZR PORV.
l 11IEN use auxiliary spray.
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- b. Depressurire RCS untilone of the following conditions is satisfied:
o PRZR level-GREATl!R THAN 76 %
(69 % FOR ADVERSE COSTAINMENT) 4 2
o RCS subcooling based on core thermocouples -
APPROACllING 32' F 7.
Check RCS to SO A P-Continue RCS cooldown and WFillIN 400 PSIG depressurization, (180 PSIO FOR ADVERSE CONTAINMENT)
FIIEN RCS to SG A P is within 400 PSIO (180 PSIG FOR ADVERSE CONTAINMENT, THEN QQIQ Step 8.
8.
Close HOT and COLD leg Imp RETURN IQ ECA 3.2 Step in effect.
Isolation valves for loop (s) with ruptured SO Page 20 of 22
JUN 0 31986 NUMBER TTIM REY ISSLTJDATE E C A.3.2 SGTR WITH LOSS OF REACTOR COOLANT -
Rev.3 SATURATED RECOVERY DESIRED STEF ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINTD ATTACHMENT B 9.
Close RCP seal water suppy and teturn isolation valves on isolated loop (s) 10.
Open isolated loop (s) drain header MOV 11.
Open isolated loop (s) bypass valve 12 Verify loop (s) with ruptured SO is RETURNIQ ECA 3.2 Step in effect.
isolated:
o Check isolated loop (s) and isolated SG(s) pressure -
APPROXD,tATELY EQUAL NOTE:
AN ISOLATED LOOP (s) MUST REMAIN ISOLATED. FURTHER RECOVERY ACTIONS MUST BE CONDUCTED AS DIRECTED BY PLANT ENGINEERING STAFF.
13 GO ID E 1, LOSS OF REACTOR OR SECONTARY COOLAhT, Step 1.
1 END i
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7 JUN 0 31988 REY. ISSUE /DATE Rev. 3 FOLDOUT EQR ECA 32 PROCEDLGLE 1.
31BEISTTIAT1Q3 CRrmRIA Manually operate charging QR SI pumps as necessary, E either condition listed below occurs:
o Core exit thermocouples INCREASING.
o RVLIS FULL RANGE LESS THAN 61 % IF NO RCP RUNNING.
2.
SUMMARY
l a.
SUBCRITICALLY Nuclear power greater than 5%.
j b.
CORE COOLING -
Core esit thermocouples greater than 1200' F.
c.
liEAT SINK -
Wide range level in all SGs less than 63%
(67% for adverse containment)
ASD total feedwater flow less than 320 GPM.
d.
Ih EGRITY -
Cold leg temperature decreases greater than 100' F in last 60 minutes ASD RCS cold leg temperature less than 231' F.
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CONTAINMENT.
Containment pressure greater than 40 PSIO.
3.
SECONDARY IN'EGRITY CRIERIA QQ IQ E 2, FAUL'ED STEAM GENERATOR ISOLATION, Step 1, unless S0 is needed for RCS cooldown, E either of the following conditions occur:
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Any SO is decreasing in an uncontrolled manner o
AhD has Em been isolated.
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b, as'Egr sol se[
4 ELE. RECIRCULATION SWrTCHOVER CRrmRION i
QQ IQ ES 1.3, TRANSFER TO RHR RECIRCULATION, Step 1, E RWST level decreases to less than 130,000 gallons.
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( LPSI pumps may cavitate E RWST level is less than 70,000 gallons. )
1 5.
AM SUPPLY MAKEUP CRITERION Start makeup to DWST before level decreases to 54,000 gallons, l
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