ML17263A264: Difference between revisions

From kanterella
Jump to navigation Jump to search
(StriderTol Bot insert)
 
(StriderTol Bot change)
 
Line 2: Line 2:
| number = ML17263A264
| number = ML17263A264
| issue date = 04/21/1993
| issue date = 04/21/1993
| title = Rev 11 to EOP ES-1.2, Post LOCA Cooldown & Depressurization.
| title = Rev 11 to EOP ES-1.2, Post LOCA Cooldown & Depressurization
| author name = Marlow T
| author name = Marlow T
| author affiliation = ROCHESTER GAS & ELECTRIC CORP.
| author affiliation = ROCHESTER GAS & ELECTRIC CORP.
Line 18: Line 18:
=Text=
=Text=
{{#Wiki_filter:EOP:
{{#Wiki_filter:EOP:
REV  11 ES-1.2       POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 1 of 23 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE PLANT SUPERINTENDENT EFFECTIVE 'DATE CATEGORY 1.0 REVIEWED BY:
ES-1.2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 1 of 23 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE PLANT SUPERINTENDENT EFFECTIVE 'DATE CATEGORY 1.0 REVIEWED BY:
9305140027'930505 PDR   ADQCK 00000244 F               PDR
9305140027'930505 PDR ADQCK 00000244 F
PDR


ck EOP:          TITLE:
ck
REV'1 ES-1.2        POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 2 of 23 A. PURPOSE    -  This procedure provides actions to cool down and depressurize      the RCS to cold shutdown conditions following a loss of reactor coolant inventory.
B. ENTRY CONDITIONS/SYMPTOMS
: 1. ENTRY CONDITIONS    - This procedure is entered from:
E 1g    LOSS OF REACTOR OR SECONDARY COOLANTg when RCS    pressure is greater than the shutoff head pressure of the RHR pumps.


EOP:              TITLE:
EOP:
REV    11 ES-1.2             POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 3    of 23 STEP      ACTION/EXPECTED RESPONSE                    RESPONSE NOT OBTAINED CAUTION o  IF RWST LEVEL DECREASES TO LESS THAN 28%, THEN THE SI SYSTEM SHOULD BE ALIGNED FOR COLD LEG RECIRCULATION USING ES-1.3, TRANSFER TO COLD LEG RECIRCULATION, STEP      l.
ES-1.2 TITLE:
o  IF PRZR LEVEL IS LESS THAN 50% OR IF ADVERSE CNMT CONDITIONS EXIST/ THEN PRZR HEATERS SHOULD NOT BE ENERGIZED UNTIL PRZR LEVEL IS EVALUATED BY THE TSC.
POST LOCA COOLDOWN AND DEPRESSURIZATION REV'1 PAGE 2 of 23 A.
o  RCS PRESSURE    SHOULD BE MONITORED.      IF RCS PRESSURE DECREASES TO LESS THAN 250 PSIG [465 PSIG    ADVERSE    CNMT],  THEN THE RHR PUMPS MUST BE MANUALLY RESTARTED  TO  SUPPLY  WATER  TO  THE  RCS.
PURPOSE - This procedure provides actions to cool down and depressurize the RCS to cold shutdown conditions following a loss of reactor coolant inventory.
NOTE:     o  Foldout page should be open and monitored periodically.
B.
o  Adverse  CNMT  values should be used whenever      CNMT pressure is
ENTRY CONDITIONS/SYMPTOMS 1.
              ~
ENTRY CONDITIONS - This procedure is entered from:
greater than    4  psig or  CNMT  radiation is greater than 10+    R/hr.
E 1 g LOSS OF REACTOR OR SECONDARY COOLANTg when RCS pressure is greater than the shutoff head pressure of the RHR pumps.
* 1 Monitor Be  Stopped:
If RHR Pumps      Should
: a. Check  RCS  pressure:                        a. Go to Step 2.
: 1) Pressure    - GREATER THAN 250  psig [465 psig adverse CNMT]
: 2) Pressure    - STABLE OR INCREASING
: b. Stop,-.RHR pumps and    place  AUTO


EOP:               TlTLE:
EOP:
REV     11 ES-1     '         POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 4     of 23 STEP       ACTION/EXPECTED RESPONSE         RESPONSE NOT OBTAINED
ES-1.2 TITLE:
* 2 Monitor     All AC Busses           Perform the following:
POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 3 of 23 STEP ACTION/EXPECTED RESPONSE
BUSSES    ENERGIZED BY OFFSITE PONER                                  a. IF any AC emergency bus normal feed breaker open, THEN ensure o  Normal feed breakers to  all 480      associated     D/G breaker closed.
 
volt busses - CLOSED
===RESPONSE===
: b. Perform the following, as o  480 bus voltage - GREATER  THAN      necessary:
NOT OBTAINED CAUTION o
420 VOLTS
IF RWST LEVEL DECREASES TO LESS THAN 28%,
: 1) Close non-safeguards       bus tie o  Emergency D/G  output breakers-          breakers:
THEN THE SI SYSTEM SHOULD BE ALIGNED FOR COLD LEG RECIRCULATION USING ES-1.3, TRANSFER TO COLD LEG RECIRCULATION, STEP l.
OPEN
o IF PRZR LEVEL IS LESS THAN 50%
                                                        ~   Bus 13 to Bus 14 tie
OR IF ADVERSE CNMT CONDITIONS EXIST/
                                                        ~   Bus 15 to Bus 16 tie
THEN PRZR HEATERS SHOULD NOT BE ENERGIZED UNTIL PRZR LEVEL IS EVALUATED BY THE TSC.
: 2) Place the     following pumps in PULL STOP:
o RCS PRESSURE SHOULD BE MONITORED.
                                                        ~ EH   pumps
IF RCS PRESSURE DECREASES TO LESS THAN 250 PSIG
                                                        ~   Turning gear oil pump
[465 PSIG ADVERSE CNMT], THEN THE RHR PUMPS MUST BE MANUALLY RESTARTED TO SUPPLY WATER TO THE RCS.
                                                        ~ HP   seal oil backup pump
NOTE:
o Foldout page should be open and monitored periodically.
o Adverse CNMT values should be used whenever CNMT pressure is
~
greater than 4 psig or CNMT radiation is greater than 10+
R/hr.
* 1 Monitor If RHR Pumps Should Be Stopped:
a.
Check RCS pressure:
: 1) Pressure
- GREATER THAN 250 psig
[465 psig adverse CNMT]
: 2) Pressure
- STABLE OR INCREASING a.
Go to Step 2.
b.
Stop,-.RHR pumps and place AUTO
 
EOP:
ES-1 '
TlTLE:
POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 4 of 23 STEP ACTION/EXPECTED RESPONSE
 
===RESPONSE===
NOT OBTAINED
* 2 Monitor All AC Busses BUSSES ENERGIZED BY OFFSITE PONER o
Normal feed breakers to all 480 volt busses CLOSED o
480 bus voltage
- GREATER THAN 420 VOLTS o
Emergency D/G output breakers-OPEN Perform the following:
: a. IF any AC emergency bus normal feed breaker
: open, THEN ensure associated D/G breaker closed.
: b. Perform the following, as necessary:
: 1) Close non-safeguards bus tie breakers:
~ Bus 13 to Bus 14 tie
~ Bus 15 to Bus 16 tie
: 2) Place the following pumps in PULL STOP:
~ EH pumps
~ Turning gear oil pump
~ HP seal oil backup pump
: 3) Restore power to MCCs.
: 3) Restore power to MCCs.
                                                        ~ A from Bus 13
~ A from Bus 13
                                                        ~ B from Bus 15
~ B from Bus 15
                                                        ~ E from Bus 15
~ E from Bus 15
                                                        ~ F from Bus 15
~ F from Bus 15 4)
: 4) WHEN   bus 15 restored, THEN reset control room lighting.
WHEN bus 15 restored, THEN reset control room lighting.
: 5) Refer to Attachment SI/UV         for other equipment lost with loss of offsite power.
: 5) Refer to Attachment SI/UV for other equipment lost with loss of offsite power.
: c. Try to restore     offsite   power to all   AC busses   (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER).
: c. Try to restore offsite power to all AC busses (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER).
 
EOP:
ES-1.2 TITLE POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 5 of 23 STEP ACTION/EXPECTED RESPONSE


EOP:              TITLE REV  11 ES-1.2            POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 5  of 23 STEP      ACTION/EXPECTED RESPONSE        RESPONSE NOT OBTAINED 3 Establish     75 GPM Charging Flow:
===RESPONSE===
: a. Charging pumps - ANY   RUNNING   a. Perform the following:
NOT OBTAINED 3 Establish 75 GPM Charging Flow:
: 1) IF   CCW   flow is lost to any RCP   thermal barrier OR any RCP   41 seal outlet temperature offscale high, THEN dispatch AO with RWST area key to locally isolate seal injection to affected RCP:
: a. Charging pumps
                                                      ~ V-300A   for RCP A
- ANY RUNNING
                                                      ~ V-300B   for RCP B
: a. Perform the following:
: 2) Ensure HCV-142 open, demand at 0%.
: 1) IF CCW flow is lost to any RCP thermal barrier OR any RCP 41 seal outlet temperature offscale high, THEN dispatch AO with RWST area key to locally isolate seal injection to affected RCP:
: b. Align charging   pump suction to b. IF LCV-112B can NOT be opened, RWST:                                THEN perform the following:
~ V-300A for RCP A
o  LCV-112B - OPEN                  1) Verify charging     pump A NOT running and place in     PULL o  LCV-112C - CLOSED                    STOP.
~ V-300B for RCP B
: 2) Ensure HCV-142 open, demand at 0%.
: b. Align charging pump suction to RWST:
o LCV-112B -
OPEN o
LCV-112C -
CLOSED
: b. IF LCV-112B can NOT be opened, THEN perform the following:
: 1) Verify charging pump A NOT running and place in PULL STOP.
: 2) Dispatch AO to locally open manual charging pump suction from RWST (V-358 located in charging pump room):
: 2) Dispatch AO to locally open manual charging pump suction from RWST (V-358 located in charging pump room):
: 3) WHEN   V-358 open, THEN direct AO   to close V-268 to isolate charging pumps B and C from VCT (V-268 located in charging   pump room).
: c. Start charging pumps as necessary (75 kw each) and establish 75 gpm total charging flow 3)
: c. Start charging pumps as necessary (75 kw each) and establish 75 gpm total charging flow
WHEN V-358 open, THEN direct AO to close V-268 to isolate charging pumps B and C from VCT (V-268 located in charging pump room).
              ~ Charging line flow
~ Charging line flow
              ~ Seal injection flow
~ Seal injection flow


EOPs ES-1.2 TLTLE$
EOPs ES-1.2 TLTLE$
POST LOCA COOLDOWN AND DEPRESSURIZATION REV:   ll PAGE 6   of 23 STEP       ACTION/EXPECTED RESPONSE                   RESPONSE NOT OBTAINED 4 Establish Condenser Steam Dump Pressure Control:
POST LOCA COOLDOWN AND DEPRESSURIZATION REV: ll PAGE 6 of 23 STEP ACTION/EXPECTED RESPONSE
: a. Verify condenser available:                 a. Place S/G   ARV controllers in AUTO at desired pressure and go o  Any MSIV -      OPEN                        to Step 5.
 
o  Annunciator G-15,      STEAM DUMP ARMED - LIT
===RESPONSE===
NOT OBTAINED 4 Establish Condenser Steam Dump Pressure Control:
: a. Verify condenser available:
o Any MSIV -
OPEN o
Annunciator G-15, STEAM DUMP ARMED - LIT
: a. Place S/G ARV controllers in AUTO at desired pressure and go to Step 5.
: b. Ad]ust condenser steam dump controller HC-484 to desired pressure and verify in AUTO
: b. Ad]ust condenser steam dump controller HC-484 to desired pressure and verify in AUTO
: c. Place steam     dump mode   selector switch to     MANUAL CAUTION IF CST LEVEL DECREASES TO LESS THAN 5 FEET, THEN ALTERNATE WATER SOURCES FOR AFV PUMPS   VILL BE NECESSARY (REFER TO ER-AFW.1, ALTERNATE WATER SUPPLY TO AFV PUMPS),
: c. Place steam dump mode selector switch to MANUAL CAUTION IF CST LEVEL DECREASES TO LESS THAN 5 FEET, THEN ALTERNATE WATER SOURCES FOR AFV PUMPS VILL BE NECESSARY (REFER TO ER-AFW.1, ALTERNATE WATER SUPPLY TO AFV PUMPS),
NOTE:   TDAFV pump     flow control valves   fail open on loss of IA.
NOTE:
TDAFV pump flow control valves fail open on loss of IA.
~&4m
: b. Control feed narrow range
[25% adverse flow to maintain level between 178 CNMT] and 50%
* 5 Monitor Intact S/G Levels:
* 5 Monitor Intact S/G Levels:
: a. Narrow range       level - GREATER           a. Maintain  total feed flow greater THAN 5% [25%     adverse CNMT]                 than 200 gpm until narrow range level greater than 5% [25%
: a. Narrow range level -
                ~ &4m                                      adverse CNMT] in at least one S/G.
GREATER THAN 5%
: b. Control feed flow to maintain                b. IF narrow range level in any   S/G narrow range level between 178                  continues to increase in an
[25% adverse CNMT]
[25%  adverse  CNMT]  and  50%                uncontrolled manner,   THEN go to E-3, STEAM GENERATOR TUBE RUPTURE, Step 1.
: a. Maintain total feed flow greater than 200 gpm until narrow range level greater than 5%
[25%
adverse CNMT] in at least one S/G.
: b. IF narrow range level in any S/G continues to increase in an uncontrolled manner, THEN go to E-3, STEAM GENERATOR TUBE
: RUPTURE, Step 1.
 
EOP:
ES-1
~ 2 T!TLE0 POST LOCA COOLDOWN AND DEPRESSURIZATION REV: ll PAGE 7 of 23 STEP ACTION/EXPECTED RESPONSE
 
===RESPONSE===
NOT OBTAINED NOTE:
Shutdown margin should be monitored during RCS cooldown (Refer to Figure SDM).
6 Initiate RCS Cooldown To Cold Shutdown:
: a. Establish and maintain cooldown rate in RCS cold legs
- LESS THAN 100'F/HR
: b. Use RHR system if in service c.
Dump steam to condenser from intact S/G(s)
: c. Manually or locally dump steam using intact S/Gs
: ARV, 7
Check RCS Subcooling Based On Manually operate SI pumps as Core EXit T/Cs - GREATER THAN necessary and go to Step 19.
O'F USING FIGURE MIN SUBCOOLING 8
Check SI and RHR Pump Status:
o SI pumps
- ANY RUNNING
-OR-Go to Step 15.
o RHR pumps
- ANY RUNNING IN INJECTION MODE 9 Place PRZR Heater Switches In The Fol&wing Positions:
. Sa o
PRZRgh'eater control group
- PULL STOP-,'-;,
o PRZR heater backup group
- OFF
 
t C


EOP:
EOP:
ES-1 ~ 2 T!TLE0 POST LOCA COOLDOWN AND DEPRESSURIZATION REV: ll PAGE 7  of 23 STEP       ACTION/EXPECTED RESPONSE               RESPONSE  NOT OBTAINED NOTE:    Shutdown margin should be monitored during    RCS cooldown (Refer to Figure    SDM).
ES-1.2 TITLE:
6 Initiate        RCS  Cooldown To Cold Shutdown:
POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 8 of 23 STEP ACTION/EXPECTED RESPONSE
: a. Establish and maintain cooldown rate in      RCS  cold legs -  LESS THAN    100'F/HR
: b. Use  RHR    system  if in service
: c. Dump    steam to condenser    from      c. Manually or locally dump steam intact S/G(s)                              using intact S/Gs ARV, 7 Check RCS Subcooling Based On                Manually operate SI pumps as Core EXit T/Cs - GREATER THAN                necessary and go to Step 19.
O'F USING FIGURE MIN SUBCOOLING 8 Check SI and          RHR Pump    Status:    Go  to Step 15.
o  SI pumps -      ANY RUNNING
                          -OR-o  RHR pumps      - ANY RUNNING IN INJECTION      MODE 9 Place    PRZR      Heater Switches In The  Fol&wing Positions:
                  . Sa o  PRZRgh'eater      control group  - PULL STOP-,'-;,
o  PRZR    heater backup group    - OFF


t C EOP:            TITLE:
===RESPONSE===
REV    11 ES-1.2            POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 8    of 23 STEP      ACTION/EXPECTED RESPONSE                RESPONSE  NOT OBTAINED
NOT OBTAINED
  * * * * * * * * * * * * * * * * * *p * * * * * * * * * * * * * * * * * * * * *
* * * * * * * * * * * * * * * * * *p * * * * * * * * * * * * * * * * * * * * *
* CAUTION VOIDING MAY OCCUR IN THE RCS DURING RCS DEPRESSURIZATION.         THIS WILL RESULT IN A RAPIDLY INCREASING PRZR LEVEL.
* CAUTION VOIDING MAY OCCUR IN THE RCS DURING RCS DEPRESSURIZATION.
NOTE:   o WHEN   using a   PRZR PORV, THEN select one with an operable block valve.
THIS WILL RESULT IN A RAPIDLY INCREASING PRZR LEVEL.
o   If auxiliary spray   is in use, spray flow may   be increased by closing normal charging valve     AOV-294 and normal PRZR spray valves.
NOTE:
10   Depressurize       RCS To Refill PRZR
o WHEN using a PRZR PORV, THEN select one with an operable block valve.
: a. Depressurize using normal     PRZR       a. Depressurize   using one PRZR spray  if  available                        PORV. IF IA NOT available, THEN refer to Attachment N2 PORVS.
o If auxiliary spray is in use, spray flow may be increased by closing normal charging valve AOV-294 and normal PRZR spray valves.
IF no PORV available,   THEN use auxiliary spray valve   (AOV-296).
10 Depressurize RCS To Refill PRZR
: b. PRZR  level  -  GREATER THAN 13%        b. Continue with Step 11. WHEN
: a. Depressurize using normal PRZR spray if available
[40%  adverse    CNMT]                        level greater than 13% [40%
: a. Depressurize using one PRZR PORV.
IF IA NOT available, THEN refer to Attachment N2 PORVS.
b.
PRZR level - GREATER THAN 13%
[40% adverse CNMT]
: c. Stop RCS depressurization IF no PORV available, THEN use auxiliary spray valve (AOV-296).
: b. Continue with Step 11.
WHEN level greater than 13%
[40%
adverse CNMT], THEN stop RCS depressurization.
adverse CNMT], THEN stop RCS depressurization.
: c. Stop  RCS  depressurization


EOP:              TITLE:
EOP:
REV  11 ES-1.2             POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 9   of 23 STEP       ACTION/EXPECTED RESPONSE               RESPONSE NOT OBTAINED CAUTION IF RCP SEAL COOLING HAD PREVIOUSLY BEEN LOST, THEN THE AFFECTED RCP SHOULD NOT BE STARTED PRIOR TO A STATUS EVALUATION.
ES-1.2 TITLE:
11   Check Started:
POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 9 of 23 STEP ACTION/EXPECTED RESPONSE
If An RCP     Should Be
 
: a. Both RCPs -    STOPPED                   a. Stop all but one RCP and go to Step 12.
===RESPONSE===
: b. RCS  subcooling based on core            b. Go to Step 19.
NOT OBTAINED CAUTION IF RCP SEAL COOLING HAD PREVIOUSLY BEEN LOST, THEN THE AFFECTED RCP SHOULD NOT BE STARTED PRIOR TO A STATUS EVALUATION.
exit T/Cs - GREATER THAN O' USING FIGURE MIN SUBCOOLING
11 Check If An RCP Should Be Started:
: c. PRZR   level   - GREATER THAN 13%         c. Return to Step 10.
: a. Both RCPs STOPPED b.
[40% adverse     CNMT]
RCS subcooling based on core exit T/Cs GREATER THAN O' USING FIGURE MIN SUBCOOLING a.
d, Try to   start an RCP                 d. IF IA to CNMT available, THEN ensure at least one control rod
Stop all but one RCP and go to Step 12.
: 1) Establish conditions    for              shroud fan running (45 kw each).
b.
starting an RCP o    Bus 11A  or llB energized o    Refer to Attachment  RCP START
Go to Step 19.
: 2) Start   one RCP
c.
PRZR level -
GREATER THAN 13%
[40% adverse CNMT]
d, Try to start an RCP
: 1) Establish conditions for starting an RCP o
Bus 11A or llB energized o
Refer to Attachment RCP START
: c. Return to Step 10.
: d. IF IA to CNMT available, THEN ensure at least one control rod shroud fan running (45 kw each).
: 2) Start one RCP


EOP:
EOP:
REV: 11 ES-1.2           POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 10   of 23 STEP       ACTION/EXPECTED RESPONSE         RESPONSE NOT OBTAINED 12 Check Pumps If One Of Three SI Should Be Stopped:
ES-1.2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV:
: a. Three SI pumps -   RUNNING         a. Go  to Step 13.
11 PAGE 10 of 23 STEP ACTION/EXPECTED RESPONSE
: b. RCS subcooling based on core     b. IF RCS hot leg temperatures exit T/Cs - GREATER THAN 35'F        greater than 320'F [310'F
 
[90'F adverse   CNMT] USING FIGURE     adverse CNMTJ OR IF RHR normal MIN SUBCOOLING                        cooling in service, THEN go to Step 19.
===RESPONSE===
NOT OBTAINED 12 Check If One Of Three SI Pumps Should Be Stopped:
: a. Three SI pumps
- RUNNING b.
RCS subcooling based on core exit T/Cs - GREATER THAN 35'F
[90'F adverse CNMT] USING FIGURE MIN SUBCOOLING a.
Go to Step 13.
: b. IF RCS hot leg temperatures greater than 320'F [310'F adverse CNMTJ OR IF RHR normal cooling in service, THEN go to Step 19.
IF RHR normal cooling NOT in service AND RCS hot leg temperatures less than 320'F
IF RHR normal cooling NOT in service AND RCS hot leg temperatures less than 320'F
[310'F adverse 'CNMT), THEN ensure at least one   RHR pump running in injection mode and go to Step 12c. IF no RHR pump can be operated in injection mode, THEN go to Step 19.
[310'F adverse
: c. Check PRZR level - GREATER THAN c. Do NOT  stop SI pump. Return to 13% [40% adverse CNMT)               Step 10.
'CNMT), THEN ensure at least one RHR pump running in injection mode and go to Step 12c.
: d. Stop one SI pump
IF no RHR pump can be operated in injection mode, THEN go to Step 19.
c.
Check PRZR level - GREATER THAN 13%
[40% adverse CNMT)
: d. Stop one SI pump c.
Do NOT stop SI pump.
Return to Step 10.


EOP:              TlTLE:
EOP:
REV: 11 ES-1.2             POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE ll of 23 STEP       ACTION/EXPECTED RESPONSE             RESPONSE NOT OBTAINED 13   Check   If   One Of Two SI Pumps Should Be Stopped:
ES-1.2 TlTLE:
: a. Two SI pumps -   RUNNING               a. Go  to Step 14.
POST LOCA COOLDOWN AND DEPRESSURIZATION REV:
11 PAGE ll of 23 STEP ACTION/EXPECTED RESPONSE
 
===RESPONSE===
NOT OBTAINED 13 Check If One Of Two SI Pumps Should Be Stopped:
a.
Two SI pumps
- RUNNING
: b. Determine required RCS subcooling from table:
: b. Determine required RCS subcooling from table:
Char'ging Pump               RCS Subcooling Criteria Availability NONE              120'F [200'F adverse CNMT]
a.
ONE            115'F [190'F adverse CNMT]
Go to Step 14.
TWO            105'F [180'F adverse CNMT]
Char'ging Pump Availability NONE ONE TWO THREE RCS Subcooling Criteria 120'F [200'F adverse CNMT]
THREE            100'F [175'F adverse CNMT]
115'F [190'F adverse CNMT]
: c. RCS   subcooling based on core         c. IF  RCS hot leg temperatures exit   T/Cs - GREATER THAN VALUE           greater than 320'F [310'F FROM TABLE ABOVE USING FIGURE              adverse CNMT] OR IF RHR normal MIN SUBCOOLING                              cooling in service, THEN go to Step 19.
105'F [180'F adverse CNMT]
100'F [175'F adverse CNMT]
c.
RCS subcooling based on core exit T/Cs - GREATER THAN VALUE FROM TABLE ABOVE USING FIGURE MIN SUBCOOLING d.
PRZR>1'evel
- GREATER THAN 13%
[40% adverse CNMT]
e.
Stop one SI pump
: c. IF RCS hot leg temperatures greater than 320'F [310'F adverse CNMT] OR IF RHR normal cooling in service, THEN go to Step 19.
IF RHR normal cooling NOT in service AND RCS hot leg temperatures less than 320'F
IF RHR normal cooling NOT in service AND RCS hot leg temperatures less than 320'F
[310'F adverse CNMT], THEN ensure at least one RHR pump running in injection mode and go to Step 13d. IF no RHR pump can be operated in injection mode, THEN go to Step 19.
[310'F adverse CNMT], THEN ensure at least one RHR pump running in injection mode and go to Step 13d.
: d. PRZR>1'evel -  GREATER THAN 13%        d. Do NOT   stop SI pump. Return to
IF no RHR pump can be operated in injection mode, THEN go to Step 19.
[40% adverse  CNMT]                      Step 10.
d.
: e. Stop one SI pump
Do NOT stop SI pump.
Return to Step 10.
 
EOP:
ES-1.2 TITLE:
POST LOCA COOLDOWN AND DEPRESSURIZATION REV ll PAGE 12 of 23 STEP ACTION/EXPECTED RESPONSE


EOP:                TITLE:
===RESPONSE===
REV    ll ES-1.2              POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 12  of 23 STEP        ACTION/EXPECTED RESPONSE                RESPONSE  NOT OBTAINED 14   Check Be If Last Stopped:
NOT OBTAINED 14 Check If Last SI Pump Should Be Stopped:
SI Pump Should
a.
: a. One SI puInp -   RUNNING                 a. IF any  RHR pump  running in injection    mode, THEN go  to Step 19,    IF NOT, THEN go  to Step 15.
One SI puInp - RUNNING
: b. Determine required RCS subcooling from table:
: b. Determine required RCS subcooling from table:
Charging Pump                 RCS Subcooling Criteria Availability NONE              Insufficient subcooling to stop SI pump.
: a. IF any RHR pump running in injection mode, THEN go to Step 19, IF NOT, THEN go to Step 15.
ONE              255'F [295'F adverse CNMT]
Charging Pump Availability NONE ONE THREE RCS Subcooling Criteria Insufficient subcooling to stop SI pump.
235'F [285'F adverse CNMT]
255'F [295'F adverse CNMT]
THREE              210'F [270'F adverse CNMT]
235'F [285'F adverse CNMT]
: c. RCS   subcooling based on core           c. IF RCS hot leg temperatures exit   T/Cs - GREATER THAN VALUE             greater than 320'F [310'F             !
210'F [270'F adverse CNMT]
FROM TABLE ABOVE USING FIGURE                'dverse     CNMT] OR IF RHR normal MIN SUBCOOLING                                cooling   in service, THEN go to Step 19.
c.
RCS subcooling based on core exit T/Cs - GREATER THAN VALUE FROM TABLE ABOVE USING FIGURE MIN SUBCOOLING d.
PRZR level
- GREATER THAN 13%
[40% adverse CNMT]
e.
Stop running SI pump
: c. IF RCS hot leg temperatures greater than 320'F [310'F
'dverse CNMT] OR IF RHR normal cooling in service, THEN go to Step 19.
IF RHR normal cooling NOT in service AND RCS hot leg temperatures less than 320'F
IF RHR normal cooling NOT in service AND RCS hot leg temperatures less than 320'F
[310'F adverse CNMT], THEN ensure at least   one RHR pump running in injection mode and go to Step 14d. IF no RHR pump can be operated in injection mode, THEN go to Step 19.
[310'F adverse CNMT], THEN ensure at least one RHR pump running in injection mode and go to Step 14d.
: d. PRZR  level  -  GREATER THAN 13%        d. Do NOT stop SI pump.     Return to
IF no RHR pump can be operated in injection mode, THEN go to Step 19.
[40%  adverse  CNMT]                        Step 10 '
d.
: e. Stop running SI pump
Do NOT stop SI pump.
Return to Step 10 '


EOP:              TITLE:
EOP:
REV    11 ES-1.2             POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 13   of 23 STEP       ACTION/EXPECTED RESPONSE               RESPONSE   NOT OBTAINED 15   Check Be If Charging Controlled Flow Should To Maintain PRZR Level:
ES-1.2 TITLE:
: a. Check   RHR pumps   - RUNNING IN         a. Start charging pump and control INJECTION    MODE                          charging flow to maintain       PRZR level and go to Step 16.
POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 13 of 23 STEP ACTION/EXPECTED RESPONSE
: b. Go  to Step    19 CAUTION IF RCP SEAL COOLING HAD PREVIOUSLY BEEN LOST, THEN THE AFFECTED RCP SHOULD NOT BE STARTED PRIOR TO A STATUS EVALUATION.
 
16   Check RCP       Status:
===RESPONSE===
: a. RCPs   - AT LEAST ONE RUNNING             a. Perform the following:
NOT OBTAINED 15 Check If Charging Flow Should Be Controlled To Maintain PRZR Level:
: 1)   Establish conditions for starting an RCP:
a.
o Verify Bus llA or   11B energized.
Check RHR pumps
o Refer to Attachment     RCP START.
- RUNNING IN INJECTION MODE b.
: 2)   Start one RCP.
Go to Step 19
IF an RCP can NOT be started, THEN   verify natural circulation (Refer to Attachment NC).
: a. Start charging pump and control charging flow to maintain PRZR level and go to Step 16.
IF natural circulation     NOT verified,   THEN increase dumping steam.
CAUTION IF RCP SEAL COOLING HAD PREVIOUSLY BEEN LOST, THEN THE AFFECTED RCP SHOULD NOT BE STARTED PRIOR TO A STATUS EVALUATION.
: b. Stop  all  but  one RCP
16 Check RCP Status:
a.
RCPs
- AT LEAST ONE RUNNING
: a. Perform the following:
: 1) Establish conditions for starting an RCP:
o Verify Bus llA or 11B energized.
o Refer to Attachment RCP START.
: 2) Start one RCP.
: b. Stop all but one RCP IF an RCP can NOT be started, THEN verify natural circulation (Refer to Attachment NC).
IF natural circulation NOT
: verified, THEN increase dumping steam.


EOP:
EOP:
ES-1.2 TITLE:
ES-1.2 TITLE:
POST LOCA COOLDOWN AND DEPRESSURIZATION REV   ll PAGE 14   of 23 STEP       ACTION/EXPECTED RESPONSE                 RESPONSE NOT OBTAINED
POST LOCA COOLDOWN AND DEPRESSURIZATION REV ll PAGE 14 of 23 STEP ACTION/EXPECTED RESPONSE
  * * * * * * * * * *
 
* 4'       * * * * * * * * * * *
===RESPONSE===
* 4'   **************
NOT OBTAINED
CAUTION VOIDING MAY OCCUR IN THE RCS DURING RCS DEPRESSURIZATION.         THIS WILL RESULT IN A RAPIDLY INCREASING PRZR LEVEL.
* * * * * * * * * *
NOTE:   o WHEN   using a PRZR PORV, THEN   select one with an operable block valve, o If auxiliary spray     is in use, spray flow may be increased by closing normal charging valve     AOV-294 and normal PRZR spray valves.
* 4'
17   Depressurize RCS To Minimize RCS   Subcooling:
* * * * * * * * * * *
: a. Depressurize using normal     PRZR       a. IF normal spray   NOT available, spray  if available                          THEN use one PRZR PORV.
* 4' CAUTION VOIDING MAY OCCUR IN THE RCS DURING RCS DEPRESSURIZATION.
NOT available, THEN IF IA refer to Attachment N2 PORVS.
THIS WILL RESULT IN A RAPIDLY INCREASING PRZR LEVEL.
IF no PRZR PORV available,  THEN use auxiliary spray valve (AOV-296).
NOTE:
: b. Energize     PRZR heaters as necessary
o WHEN using a PRZR PORV, THEN select one with an operable block
: valve, o If auxiliary spray is in use, spray flow may be increased by closing normal charging valve AOV-294 and normal PRZR spray valves.
17 Depressurize RCS To Minimize RCS Subcooling:
: a. Depressurize using normal PRZR spray if available
: a. IF normal spray NOT available, THEN use one PRZR PORV.
IF IA NOT available, THEN refer to Attachment N2 PORVS.
: b. Energize PRZR heaters as necessary
: c. Depressurize RCS until EITHER of the following conditions satisfied:
: c. Depressurize RCS until EITHER of the following conditions satisfied:
o RCS- subcooling based on core exit   T/Cs - LESS THAN 10'F USING FIGURE MIN SUBCOOLING
IF no PRZR PORV available, THEN use auxiliary spray valve (AOV-296).
                          -OR-o PRZR   level - GREATER THAN 75%
o RCS-subcooling based on core exit T/Cs - LESS THAN 10'F USING FIGURE MIN SUBCOOLING
(65% adverse   CNMT]
-OR-o PRZR level -
GREATER THAN 75%
(65% adverse CNMT]


EOP:
EOP:
ES-1.               POST LOCA COOLDOWN AND DEPRESSURIZATION REV   ll 2
ES-1. 2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV ll PAGE 15 of 23 STEP ACTION/EXPECTED RESPONSE
PAGE 15 of 23 STEP         ACTION/EXPECTED RESPONSE       RESPONSE  NOT OBTAINED 18  Verify Adequate          Shutdown Margin
: a. Direct    HP to sample  RCS for boron concentration
: b. Verify boron concentration-        b. Borate as necessary.
GREATER THAN REQUIREMENTS OF FIGURE SDM
  *19    Monitor SI Reinitiation Criteria:
: a. RCS  subcooling based on core    a. Manually operate SI pumps as exit T/Cs - GREATER THAN O'        necessary and go to Step 20.
USING FIGURE MIN SUBCOOLING
: b. PRZR  level  - GREATER THAN 5%  b. Manually operate SI  pumps as
[30%  adverse  CNMT]                necessary and return to Step 10.


EOP:              TITLE:
===RESPONSE===
REV    11 ES-1.2             POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 16   of 23 STEP       ACTION/EXPECTED RESPONSE         RESPONSE NOT OBTAINED 20   Check Isolated:
NOT OBTAINED 18 Verify Adequate Shutdown Margin
If SI   ACCUMs   Should Be
: a. Direct HP to sample RCS for boron concentration
: a. RCS subcooling based on core     a. IF both RCS hot leg temperatures exit T/Cs -   GREATER THAN O'       less than 400'F, THEN go to USING FIGURE MIN SUBCOOLING           Step 20c.
: b. Verify boron concentration-GREATER THAN REQUIREMENTS OF FIGURE SDM
IF  NOT, THEN go  to Step 21.
: b. Borate as necessary.
: b. PRZR level   - GREATER THAN 5%   b. Return to Step  10
*19 Monitor SI Reinitiation Criteria:
[30% adverse   CNMT]
a.
: c. Dispatch AO with locked valve key to locally close breakers for SI ACCUM discharge valves                             ',
RCS subcooling based on core exit T/Cs GREATER THAN O' USING FIGURE MIN SUBCOOLING
            ~ MOV-841,   MCC C position 12F
: a. Manually operate SI pumps as necessary and go to Step 20.
            ~ MOV-865,   MCC D position 12C
b.
: d. Close SI   ACCUM discharge valves   Vent any unisolated    ACCUMs:
PRZR level -
              ~ ACCUM A) MOV-841                 1) Open vent valves for
GREATER THAN 5%
              ~ ACCUM B, MOV-865                     unisolated SI ACCUMs.
[30% adverse CNMT]
                                                      ~ ACCUM A) AOV-834A
: b. Manually operate SI pumps as necessary and return to Step 10.
                                                        ~ ACCUM B, AOV-834B
 
EOP:
ES-1.2 TITLE:
POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 16 of 23 STEP ACTION/EXPECTED RESPONSE
 
===RESPONSE===
NOT OBTAINED 20 Check If SI ACCUMs Should Be Isolated:
a.
RCS subcooling based on core exit T/Cs - GREATER THAN O' USING FIGURE MIN SUBCOOLING b.
PRZR level - GREATER THAN 5%
[30% adverse CNMT]
: c. Dispatch AO with locked valve key to locally close breakers for SI ACCUM discharge valves
~ MOV-841, MCC C position 12F
~ MOV-865, MCC D position 12C
: d. Close SI ACCUM discharge valves
~ ACCUM A) MOV-841
~ ACCUM B, MOV-865
: e. Locally reopen breakers for MOV-841 and MOV-865
: a. IF both RCS hot leg temperatures less than 400'F, THEN go to Step 20c.
IF NOT, THEN go to Step 21.
: b. Return to Step 10 Vent any unisolated ACCUMs:
: 1) Open vent valves for unisolated SI ACCUMs.
~ ACCUM A) AOV-834A
~ ACCUM B, AOV-834B
: 2) Open HCV-945.
: 2) Open HCV-945.
: e. Locally reopen breakers    for MOV-841 and MOV-865


EOP:              T1TLE:
EOP:
REV  11 ES-1.2             POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 17   of 23 STEP       ACTION/EXPECTED RESPONSE           RESPONSE NOT OBTAINED 21   Check   If Emergency Should Be Stopped:
ES-1.2 T1TLE:
D/Gs a.'erify   AC emergency busses         a. Try to restore offsite power energized by    offsite  power:        (Refer to ER-ELEC.l, RESTORATION OF OFFSITE POWER).
POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 17 of 23 STEP ACTION/EXPECTED RESPONSE
o   Emergency D/G output breakers OPEN o  AC emergency   bus voltage-GREATER THAN   420 VOLTS o   AC emergency bus normal feed breakers -  CLOSED
 
: b. Stop any unloaded emergency D/G and place in standby (Refer to Attachment D/G STOP) 22   Verify Adequate       SW   Flow To
===RESPONSE===
      'CW Hx:
NOT OBTAINED 21 Check If Emergency D/Gs Should Be Stopped:
: a. Verify at least     two SW pumps-   a. Manually start pumps as power RUNNING                                  supply permits (258 kw per pump). IF less than two SW pumps can be operated, THEN go to Step 23.
a.'erify AC emergency busses energized by offsite power:
: b. Verify AUX BLDG    SW  isolation    b. Establish SW to AUX BLDG (Refer valves - OPEN                            to Attachment AUX BLDG SW).
o Emergency D/G output breakers OPEN
              ~ MOV-4615 and MOV-4734
: a. Try to restore offsite power (Refer to ER-ELEC.l, RESTORATION OF OFFSITE POWER).
              ~ MOV&616 and MOV-4735
o AC emergency bus voltage-GREATER THAN 420 VOLTS o
: c. Verffjr. CNMT RECIRC fan              c. Dispatch AO to locally throttle annunc'iator C-2, HIGH                    flow to CCW Hx to between TEMPERATURE ALARM      - EXTINGUISHED    5000 gpm and 6000 gpm total flow.
AC emergency bus normal feed breakers CLOSED
: b. Stop any unloaded emergency D/G and place in standby (Refer to Attachment D/G STOP) 22 Verify Adequate SW Flow To
'CW Hx:
: a. Verify at least two SW pumps-RUNNING
: b. Verify AUX BLDG SW isolation valves OPEN
~ MOV-4615 and MOV-4734
~ MOV&616 and MOV-4735
: c. Verffjr.CNMT RECIRC fan annunc'iator C-2, HIGH TEMPERATURE ALARM - EXTINGUISHED
: a. Manually start pumps as power supply permits (258 kw per pump).
IF less than two SW pumps can be operated, THEN go to Step 23.
: b. Establish SW to AUX BLDG (Refer to Attachment AUX BLDG SW).
: c. Dispatch AO to locally throttle flow to CCW Hx to between 5000 gpm and 6000 gpm total flow.
 
EOP:
ES-1.2 JOSTLE:
POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 18 of 23 STEP ACTION/EXPECTED RESPONSE


EOP:            JOSTLE:
===RESPONSE===
REV    11 ES-1.2            POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 18  of 23 STEP      ACTION/EXPECTED RESPONSE          RESPONSE NOT OBTAINED 23   Check RCP Cooling                       Establish normal cooling to RCPs (Refer to Attachment SEAL COOLING).
NOT OBTAINED 23 Check RCP Cooling a.
: a. Check  CCW  to RCPs o Annunciator A-7,     RCP 1A CCW RETURN HIGH TENP OR LOW FLOW EXTINGUISHED o Annunciator A-15,     RCP 1B CCW RETURN HIGH TEMP OR LOW FLOW EXTINGUISHED
Check CCW to RCPs Establish normal cooling to RCPs (Refer to Attachment SEAL COOLING).
: b. Check   RCP   seal injection o Labyrinth seal D/Ps -     GREATER THAN 15 INCHES WATER
o Annunciator A-7, RCP 1A CCW RETURN HIGH TENP OR LOW FLOW EXTINGUISHED o
                          -OR-o RCP   seal injection flow to each   RCP - GREATER THAN 6 GPH
Annunciator A-15, RCP 1B CCW RETURN HIGH TEMP OR LOW FLOW EXTINGUISHED b.
Check RCP seal injection o
Labyrinth seal D/Ps
- GREATER THAN 15 INCHES WATER
-OR-o RCP seal injection flow to each RCP - GREATER THAN 6 GPH


EOP:              TITLE:
EOP:
REV: 11 ES-1   '           POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 19   of 23 STEP       ACTION/EXPECTED RESPONSE           RESPONSE   NOT OBTAINED 24   Check   If   Seal Return Flow Should Be Established:
ES-1 '
: a. Verify instrument       bus D-     a. Restore power to instrument bus ENERGIZED                               D from MCC B or MCC A I
TITLE:
(maintenance supply).
POST LOCA COOLDOWN AND DEPRESSURIZATION REV:
: b. Verify RCP ¹1 seal outlet             b. Go  to Step 25.
11 PAGE 19 of 23 STEP ACTION/EXPECTED RESPONSE
temperature - LESS THAN 235'F r
 
: c. Verify RCP seal outlet valves-       c. Manually open valves as OPEN                                     necessary.
===RESPONSE===
            ~ AOV-270A.
NOT OBTAINED 24 Check If Seal Return Flow Should Be Established:
            ~ AOV-270B
: a. Verify instrument bus D-ENERGIZED I
: d. Reset both     trains of XY relays for RCP   seal return isolation valve     MOV-313
: b. Verify RCP ¹1 seal outlet temperature
: e. Open   RCP   seal return isolation e. Perform the following:
- LESS THAN 235'F r
valve    MOV-313
: c. Verify RCP seal outlet valves-OPEN
~ AOV-270A.
~ AOV-270B
: a. Restore power to instrument bus D from MCC B or MCC A (maintenance supply).
b.
Go to Step 25.
: c. Manually open valves as necessary.
: d. Reset both trains of XY relays for RCP seal return isolation valve MOV-313 e.
Open RCP seal return isolation valve MOV-313
: e. Perform the following:
: 1) 'Place MOV-313 switch to OPEN.
: 1) 'Place MOV-313 switch to OPEN.
: 2) Dispatch   AO with key to RWST gate to locally open MOV-313.
: f. Verify RCP ¹1 seal leakoff flow LESS THAN 5.5 GPM r W ~
: f. Verify RCP      ¹1 seal leakoff flow f. IF any RCP seal leakoff flow LESS THAN      5.5  GPM                greater than 5.5 gpm, THEN perform the following:
r-
o   Close the affected RCP seal discharge valve r W ~                                    ~ RCP A, AOV-270A
: g. Verify RCP ¹1 seal leakoff flow GREATER THAN 0.25 GPM
                                                          ~ RCP B, AOV-270B r-o   Trip the affected RCP IF both RCP seal discharge valves are shut, THEN go to Step 25.
: 2) Dispatch AO with key to RWST gate to locally open MOV-313.
: g. Verify RCP ¹1 seal leakoff flow      g. Refer to AP-RCP.1,   RCP SEAL GREATER THAN      0.25  GPM          MALFUNCTION.
: f. IF any RCP seal leakoff flow greater than 5.5
: gpm, THEN perform the following:
o Close the affected RCP seal discharge valve
~ RCP A, AOV-270A
~ RCP B, AOV-270B o
Trip the affected RCP IF both RCP seal discharge valves are shut, THEN go to Step 25.
: g. Refer to AP-RCP.1, RCP SEAL MALFUNCTION.


EOP:
EOP:
REV    11 ES-1.2             POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 20             of 23 STEP       ACTION/EXPECTED RESPONSE             RESPONSE   NOT OBTAINED NOTE:     Adverse CNMT conditions or loss of forced   air cooling   may result in of NIS detectors.                                                 'ailure 25   Check     If Source Detectors Should Range Be Energized:
ES-1.2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 20 of 23 STEP ACTION/EXPECTED RESPONSE
: a. Source range channels                   a. Go to Step 25e.
 
DEENERGIZED
===RESPONSE===
: b. Check intermediate range     flux-     b. Perform the following:
NOT OBTAINED NOTE:
EITHER CHANNEL LESS THAN 10 10 AMPS                                1) IF neither intermediate range channel is decreasing, THEN initiate boration.
Adverse CNMT conditions or loss of forced air cooling may result in
: 2) Continue   with Step 26. WHEN flux is   LESS THAN 10     amps on any operable channel,             THEN do Steps 25c, d and e.
'ailure of NIS detectors.
: c. Check the following:                     c. Continue with Step 26. WHEN either condition met,   THEN do o  Both intermediate range                Steps 25d and e.
25 Check If Source Range Detectors Should Be Energized:
channels - LESS THAN 10      AMPS
a.
                          -OR-o   Greater than 20 minutes since reactor trip
Source range channels DEENERGIZED a.
: d. Verify source   range detectors-       d. Manually energize source range ENERGIZED                                  detectors by depressing P-6 permissive defeat pushbuttons (2 of 2) ~
Go to Step 25e.
IF source ranges can NOT   be restored, THEN refer to ER-NIS.1, SR   MALFUNCTION and go to Step 25.
b.
Check intermediate range flux-EITHER CHANNEL LESS THAN 10 10 AMPS
: b. Perform the following:
: 1) IF neither intermediate range channel is decreasing, THEN initiate boration.
: 2) Continue with Step 26.
WHEN flux is LESS THAN 10 amps on any operable
: channel, THEN do Steps
: 25c, d and e.
c.
Check the following:
o Both intermediate range channels
- LESS THAN 10 AMPS
: c. Continue with Step 26.
WHEN either condition met, THEN do Steps 25d and e.
-OR-o Greater than 20 minutes since reactor trip
: d. Verify source range detectors-ENERGIZED
: d. Manually energize source range detectors by depressing P-6 permissive defeat pushbuttons (2
of 2)
~
IF source ranges can NOT be
: restored, THEN refer to ER-NIS.1, SR MALFUNCTION and go to Step 25.
: e. Transfer Rk-45 recorder to one source range and one intermediate range channel
: e. Transfer Rk-45 recorder to one source range and one intermediate range channel


EOP:                  TITLE:
EOP:
REV    11 ES-1.2                 POST LOCA COOLDONN AND DEPRESSURIZATION PAGE 21   of 23 STEP         ACTION/EXPECTED RESPONSE               RESPONSE   NOT OBTAINED 26   Establish Normal Shutdown Alignment:
ES-1.2 TITLE:
: a. Check condenser       - AVAILABLE       a. Dispatch AO to perform Attachment SD-2.
POST LOCA COOLDONN AND DEPRESSURIZATION REV 11 PAGE 21 of 23 STEP ACTION/EXPECTED RESPONSE
 
===RESPONSE===
NOT OBTAINED 26 Establish Normal Shutdown Alignment:
a.
Check condenser
- AVAILABLE
: a. Dispatch AO to perform Attachment SD-2.
: b. Perform the following:
: b. Perform the following:
o   Open     generator disconnects
o Open generator disconnects
                  ~   1G13A71
~ 1G13A71
                  ~   9X13A73 o   Place voltage regulator to     OFF o   Open   turbine drain valves o   Rotate reheater steam supply controller cern to close valves o   Place reheater     dump valve switches to     HAND o   Stop   all but one condensate pump
~ 9X13A73 o
Place voltage regulator to OFF o
Open turbine drain valves o
Rotate reheater steam supply controller cern to close valves o
Place reheater dump valve switches to HAND o
Stop all but one condensate pump
: c. Verify adequate Rx head cooling:
: c. Verify adequate Rx head cooling:
: 1) Check IA to       CNMT - AVAIIABLE       1) Go to Step 26d.
: 1) Check IA to CNMT - AVAIIABLE 1)
: 2)   Verify at least     one control       2) Manually start one fan as rod shroud fan -     RUNNING               power supply permits (45 kw)
Go to Step 26d.
: 3) Verify one     Rx compartment           3) Perform the  following:
: 2) Verify at least one control rod shroud fan - RUNNING
c'ooling fan - RUNNING
: 3) Verify one Rx compartment c'ooling fan - RUNNING
                  ~~t ~                                       o Dispatch AO to reset UV relays at MCC C and MCC D.
~~t ~
o Manually start one fan as power supply permits (23 kw)
: 2) Manually start one fan as power supply permits (45 kw)
: d. Verify Attachment       SD COMPLETE
: 3) Perform the following:
o Dispatch AO to reset UV relays at MCC C and MCC D.
o Manually start one fan as power supply permits (23 kw)
: d. Verify Attachment SD-1 COMPLETE
 
EOP:
ES-1.2 TITLE:
POST'OCA COOLDONN AND DEPRESSURIZATION REV:
11 PAGE 22 of 23 STEP ACTION/EXPECTED RESPONSE


EOP:            TITLE:
===RESPONSE===
REV: 11 ES-1.2            POST'OCA      COOLDONN AND DEPRESSURIZATION PAGE 22 of 23 STEP      ACTION/EXPECTED RESPONSE            RESPONSE NOT OBTAINED 27 Check   If RCPs     Must Be Stopped:
NOT OBTAINED 27 Check If RCPs Must Be Stopped:
: a. RCPs   - ANY RUNNING                   a. Go to Step 28.
a.
: b. Check the following:                   b. Go to Step 28.
RCPs
o   RCP ¹1 seal   D/P - LESS THAN 220 PSID
- ANY RUNNING b.
                          -OR-o   RCP ¹1 seal     leakoff - LESS THAN 0.25 GPM
Check the following:
: c. Stop affected RCP(s) 28 Check Condenser         Steam Dump       Use  intact          for Available       - CONDENSER VACUUM S/G ARV temperature control.
o RCP ¹1 seal D/P - LESS THAN 220 PSID a.
RCS GREATER THAN 20 INCHES HG 29 Check Can Be IfEstablished:
Go to Step 28.
RHR Normal      Cooling
b.
: a. RCS cold leg temperature     - LESS   a, Return to Step   l.
Go to Step 28.
THAN  350'F
-OR-o RCP ¹1 seal leakoff - LESS THAN 0.25 GPM
: b. RCS pressure   - LESS THAN           b. Go to Step 30.
: c. Stop affected RCP(s) 28 Check Condenser Steam Dump Available - CONDENSER VACUUM GREATER THAN 20 INCHES HG Use intact S/G ARV for RCS temperature control.
400 psig [300 psig adverse     CNMTj
29 Check If RHR Normal Cooling Can Be Established:
: c. Place   RCS   overpressure protection system in service (Refer to 0-7, ALIGNMENT AND OPERATION OF THE REACTOR VESSEL OVERPRESSURE PROTECTION SYSTEM)
a.
: d. Consult TSC to determine normal cooling should be if RHR established using Attachment RHR COOL
RCS cold leg temperature LESS THAN 350'F a, Return to Step l.
b.
RCS pressure
- LESS THAN 400 psig [300 psig adverse CNMTj
: c. Place RCS overpressure protection system in service (Refer to 0-7, ALIGNMENT AND OPERATION OF THE REACTOR VESSEL OVERPRESSURE PROTECTION SYSTEM)
: d. Consult TSC to determine if RHR normal cooling should be established using Attachment RHR COOL b.
Go to Step 30.


EOP:
EOP:
REV: 11 ES-1.2           POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 23   of 23 STEP       ACTION/EXPECTED RESPONSE             RESPONSE NOT OBTAINED NOTE:     This procedure should be continued while obtaining     CNMT hydrogen sample in Step 30.
ES-1.2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV:
30   Check   CNMT   Hydrogen Concentration:
11 PAGE 23 of 23 STEP ACTION/EXPECTED RESPONSE
 
===RESPONSE===
NOT OBTAINED NOTE:
This procedure should be continued while obtaining CNMT hydrogen sample in Step 30.
30 Check CNMT Hydrogen Concentration:
: a. Dire'ct HP to start CNMT hydrogen monitors as necessary
: a. Dire'ct HP to start CNMT hydrogen monitors as necessary
: b. Hydrogen concentration -   LESS         b. Consult TSC to determine if THAN 0.5%                                hydrogen recombiners   should be placed in service.
: b. Hydrogen concentration
31   Check Core     Exit T/Cs LESS           Return to Step   l.
- LESS THAN 0.5%
THAN  200'F 32   Evaluate Long Term Plant Status:
: b. Consult TSC to determine if hydrogen recombiners should be placed in service.
31 Check Core Exit T/Cs LESS THAN 200'F Return to Step l.
32 Evaluate Long Term Plant Status:
: a. Maintain cold shutdown conditions
: a. Maintain cold shutdown conditions
: b. Consult TSC
: b. Consult TSC
                                              -END-
-END-


EOP:
EOP:
REV: 11 ES-1.2       POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 1 of 1 ES-1.2 APPENDIX LIST TITLE                               PAGES
ES-1.2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV:
: 1) RED PATH  
11 PAGE 1 of 1 ES-1.2 APPENDIX LIST TITLE PAGES 1)
RED PATH  


==SUMMARY==
==SUMMARY==
: 2) FIGURE MIN SUBCOOLING
2)
: 3) FIGURE SDM
FIGURE MIN SUBCOOLING 3)
: 4) ATTACHMENT SEAL COOLING
FIGURE SDM 4)
: 5) ATTACHMENT RCP START
ATTACHMENT SEAL COOLING 5)
: 6) ATTACHMENT NC
ATTACHMENT RCP START 6)
: 7) ATTACHMENT D/G STOP
ATTACHMENT NC 7)
: 8) ATTACHMENT SD-1
ATTACHMENT D/G STOP 8)
: 9) ATTACHMENT SD-2
ATTACHMENT SD-1 9)
: 10) ATTACHMENT SI/UV
ATTACHMENT SD-2 10)
: 11) ATTACHMENT N2 PORVS
ATTACHMENT SI/UV 11)
: 12) ATTACHMENT RHR COOL
ATTACHMENT N2 PORVS 12)
: 13) ATTACHMENT AUX BLDG SW
ATTACHMENT RHR COOL 13)
: 14) FOLDOUT
ATTACHMENT AUX BLDG SW 14)
FOLDOUT


EOP:         T1TLEt REV  11 ES-1.2         POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 1 of 1 RED PATH  
EOP:
ES-1.2 T1TLEt POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 1 of 1 RED PATH  


==SUMMARY==
==SUMMARY==
: a. SUBCRITICALITY Nuclear power     greater than 54
a.
: b. CORE COOLING   Core exit T/Cs greater than 1200'F
SUBCRITICALITY Nuclear power greater than 54 b.
                                            -OR-Core exit T/Cs greater than 700'F AND RVLIS level (no RCPs) less than 434 [464 adverse CNMT]
CORE COOLING Core exit T/Cs greater than 1200'F
: c. HEAT SINK   - Narrow range   level in all S/Gs less than 5%
-OR-Core exit T/Cs greater than 700'F AND RVLIS level (no RCPs) less than 434
[254 adverse   CNMT] AND total feedwater flow less than   200 gpm
[464 adverse CNMT]
: d. INTEGRITY Cold   leg temperatures. decrease greater than 100'F in last 60 minutes AND RCS cold leg temperature less than 285'F
c.
: e. CONTAINMENT CNMT   pressure greater than   60 psig
HEAT SINK - Narrow range level in all S/Gs less than 5%
[254 adverse CNMT] AND total feedwater flow less than 200 gpm d.
INTEGRITY Cold leg temperatures. decrease greater than 100'F in last 60 minutes AND RCS cold leg temperature less than 285'F e.
CONTAINMENT CNMT pressure greater than 60 psig


EOP:             T I TLE!
EOP:
REV  11 ES-1.2             POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 1   of 1 FIGURE MIN SUBCOOLING NOTE:     Subcooling Margin = Saturation Temperature From Figure Below   [-] Core Exit   T/C Indication RC S PRESSURE    (PSIG) 2500 2400 RCS PRESSURE 2300 INCREHENTS 20 PSIG 2200 2100 2000 1900 1800 1700 1600 1500 1400                             SUBCOOLED 1300                             REGION 1200 1100 1000 900 800 INADEQUATE 700                                                                   SUBCOOLING 600                                                                     REGION ADVERSE CNHT 500 400 300 200                                           NORHAL CNHT                     TEHPERATURE INCREHENTS 10'F 100 0
ES-1.2 T ITLE!
200     250         300   350     400     450     500     550     600     650     700 CORE EXIT SATURATION TEHPERATURE ( F)
POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 1 of 1 FIGURE MIN SUBCOOLING NOTE:
Subcooling Margin = Saturation Temperature From Figure Below [-] Core Exit T/C Indication RC 2500 2400 2300 2200 2100 2000 1900 1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0
S PRESSURE (PSIG)
RCS PRESSURE INCREHENTS 20 PSIG SUBCOOLED REGION ADVERSE CNHT NORHAL CNHT INADEQUATE SUBCOOLING REGION TEHPERATURE INCREHENTS 10'F 200 250 300 350 400 450 500 550 600 650 700 CORE EXIT SATURATION TEHPERATURE
(
F)


EOP:
EOP:
REV: 11 ES-1.2         POST'LOCA COOLDOWN AND DEPRESSURIZATION PAGE 1 of 1 FIGURE SDM NOTE:   o Curve includes allowance for one stuck rod. Add 100 ppm for each additional stuck rod.
ES-1.2 POST'LOCA COOLDOWN AND DEPRESSURIZATION REV:
11 PAGE 1 of 1 FIGURE SDM NOTE:
o Curve includes allowance for one stuck rod.
Add 100 ppm for each additional stuck rod.
o To obtain core burnup, use PPCS turn on code BURNUP.
o To obtain core burnup, use PPCS turn on code BURNUP.
BORON CONCENTRATION   (PPH) 1800 BORON INCREMENTS 20 PPH 1600 1400 ADEQUATE SDH
BORON CONCENTRATION (PPH) 1800 1600 BORON INCREMENTS 20 PPH 1400
'200                                                       100 PPH CONSERVATISM INCLUDED 1000 800 600 400 BORATE BURNUP 200 INCREMENTS 100 HWD/HTU 0   1000   2000   3000   4000   5000   6000   7000   8000 9000   10000 11000 CYCLE 23 BURNUP (HWD/HTU)
'200 1000 ADEQUATE SDH 100 PPH CONSERVATISM INCLUDED 800 600 400 BORATE 200 BURNUP INCREMENTS 100 HWD/HTU 0
1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 CYCLE 23 BURNUP (HWD/HTU)


EOP:            T1TLE:
EOP:
REV: 11 ES-1.2           POST LOCA COOLDOWN AND DEPRESSURIZATION PAGE 1 of 1 FOLDOUT PAGE
ES-1.2 T1TLE:
: 1. SI REXNITIATION CRITERIA IF EITHER condition listed below occurs, THEN manually operate SI pumps as necessary:
POST LOCA COOLDOWN AND DEPRESSURIZATION REV:
o RCS subcooling based on core exit T/Cs LESS THAN O'F USING FIGURE MIN SUBCOOLING OR-o   PRZR   level - CHARGING CAN NOT CONTROL LEVEL GREATER THAN 54
11 PAGE 1 of 1 FOLDOUT PAGE 1.
[304 adverse   CNMT]
SI REXNITIATION CRITERIA IF EITHER condition listed below occurs, THEN manually operate SI pumps as necessary:
: 2. SI TERMXNATION CRITERIA IF ALL conditions listed below occur, THEN go to ES-1.1, SI TERMINATION, Step 1:
o RCS subcooling based on core exit T/Cs LESS THAN O'F USING FIGURE MIN SUBCOOLING OR-o PRZR level - CHARGING CAN NOT CONTROL LEVEL GREATER THAN 54
: a. RCS subcooling based on core exit T/Cs GREATER THAN O'F         USING FIGURE MIN SUBCOOLING
[304 adverse CNMT]
: b. Total feed flow to intact S/Gs       GREATER THAN 200 GPM OR Narrow range level in   at least one intact S/G - GREATER THAN 54 [254 adverse CNMT]
2.
: c. RCS pressure:
SI TERMXNATION CRITERIA IF ALL conditions listed below occur, THEN go to ES-1.1, SI TERMINATION, Step 1:
o GREATER THAN 1625 PSIG [1825     psig adverse   CNMT]
a.
o STABLE OR INCREASING
RCS subcooling based on core exit T/Cs GREATER THAN O'F USING FIGURE MIN SUBCOOLING
: d. PRZR   level - GREATER THAN 54   [304 adverse CNMT]
: b. Total feed flow to intact S/Gs GREATER THAN 200 GPM OR Narrow range level in at least one intact S/G - GREATER THAN 54 [254 adverse CNMT]
: 3. SECONDARY INTEGRITY CRITERIA IF any S/G pressure is decreasing in an uncontrolled manner or is completely depressurized AND has not been isolated, THEN go to E-2, FAULTED S/G ISOLATION,   Step 1.
c.
4 ~ COLD LEG RECIRCULATION SWITCHOVER CRITERION IF RWST, level decreases to less than   284, THEN go to ES-1.3, TRANSFER TO COLD LEG RECIRCULATION,     Step 1.
RCS pressure:
: 5. AFW SUPPLY SWITCHOVER CRITERION IF CST level decreases to less than 5 feet, THEN switch to alternate AFW water supply (Refer to ER-AFW.1, ALTERNATE WATER SUPPLY TO AFW PUMPS) .
o GREATER THAN 1625 PSIG
[1825 psig adverse CNMT]
o STABLE OR INCREASING d.
PRZR level - GREATER THAN 54
[304 adverse CNMT]
3.
SECONDARY INTEGRITY CRITERIA IF any S/G pressure is decreasing in an uncontrolled manner or is completely depressurized AND has not been isolated, THEN go to E-2, FAULTED S/G ISOLATION, Step 1.
4 ~
COLD LEG RECIRCULATION SWITCHOVER CRITERION IF RWST, level decreases to less than 284, THEN go to ES-1.3, TRANSFER TO COLD LEG RECIRCULATION, Step 1.
5.
AFW SUPPLY SWITCHOVER CRITERION IF CST level decreases to less than 5 feet, THEN switch to alternate AFW water supply (Refer to ER-AFW.1, ALTERNATE WATER SUPPLY TO AFW PUMPS).
: 6. E-3 TRANSITION CRITERIA IF any S/G level increases in an uncontrolled manner or any S/G has abnormal radiation, THEN go to E-3, STEAM GENERATOR TUBE RUPTURE, Step 1.}}
: 6. E-3 TRANSITION CRITERIA IF any S/G level increases in an uncontrolled manner or any S/G has abnormal radiation, THEN go to E-3, STEAM GENERATOR TUBE RUPTURE, Step 1.}}

Latest revision as of 10:14, 8 January 2025

Rev 11 to EOP ES-1.2, Post LOCA Cooldown & Depressurization
ML17263A264
Person / Time
Site: Ginna Constellation icon.png
Issue date: 04/21/1993
From: Marlow T
ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17263A255 List:
References
ES-1.2, NUDOCS 9305140027
Download: ML17263A264 (56)
v • d • e


Text

EOP:

ES-1.2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 1 of 23 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE PLANT SUPERINTENDENT EFFECTIVE 'DATE CATEGORY 1.0 REVIEWED BY:

9305140027'930505 PDR ADQCK 00000244 F

PDR

ck

EOP:

ES-1.2 TITLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV'1 PAGE 2 of 23 A.

PURPOSE - This procedure provides actions to cool down and depressurize the RCS to cold shutdown conditions following a loss of reactor coolant inventory.

B.

ENTRY CONDITIONS/SYMPTOMS 1.

ENTRY CONDITIONS - This procedure is entered from:

E 1 g LOSS OF REACTOR OR SECONDARY COOLANTg when RCS pressure is greater than the shutoff head pressure of the RHR pumps.

EOP:

ES-1.2 TITLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 3 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED CAUTION o

IF RWST LEVEL DECREASES TO LESS THAN 28%,

THEN THE SI SYSTEM SHOULD BE ALIGNED FOR COLD LEG RECIRCULATION USING ES-1.3, TRANSFER TO COLD LEG RECIRCULATION, STEP l.

o IF PRZR LEVEL IS LESS THAN 50%

OR IF ADVERSE CNMT CONDITIONS EXIST/

THEN PRZR HEATERS SHOULD NOT BE ENERGIZED UNTIL PRZR LEVEL IS EVALUATED BY THE TSC.

o RCS PRESSURE SHOULD BE MONITORED.

IF RCS PRESSURE DECREASES TO LESS THAN 250 PSIG

[465 PSIG ADVERSE CNMT], THEN THE RHR PUMPS MUST BE MANUALLY RESTARTED TO SUPPLY WATER TO THE RCS.

NOTE:

o Foldout page should be open and monitored periodically.

o Adverse CNMT values should be used whenever CNMT pressure is

~

greater than 4 psig or CNMT radiation is greater than 10+

R/hr.

  • 1 Monitor If RHR Pumps Should Be Stopped:

a.

Check RCS pressure:

1) Pressure

- GREATER THAN 250 psig

[465 psig adverse CNMT]

2) Pressure

- STABLE OR INCREASING a.

Go to Step 2.

b.

Stop,-.RHR pumps and place AUTO

EOP:

ES-1 '

TlTLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 4 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED

  • 2 Monitor All AC Busses BUSSES ENERGIZED BY OFFSITE PONER o

Normal feed breakers to all 480 volt busses CLOSED o

480 bus voltage

- GREATER THAN 420 VOLTS o

Emergency D/G output breakers-OPEN Perform the following:

a. IF any AC emergency bus normal feed breaker
open, THEN ensure associated D/G breaker closed.
b. Perform the following, as necessary:
1) Close non-safeguards bus tie breakers:

~ Bus 13 to Bus 14 tie

~ Bus 15 to Bus 16 tie

2) Place the following pumps in PULL STOP:

~ EH pumps

~ Turning gear oil pump

~ HP seal oil backup pump

3) Restore power to MCCs.

~ A from Bus 13

~ B from Bus 15

~ E from Bus 15

~ F from Bus 15 4)

WHEN bus 15 restored, THEN reset control room lighting.

5) Refer to Attachment SI/UV for other equipment lost with loss of offsite power.
c. Try to restore offsite power to all AC busses (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER).

EOP:

ES-1.2 TITLE POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 5 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 3 Establish 75 GPM Charging Flow:

a. Charging pumps

- ANY RUNNING

a. Perform the following:
1) IF CCW flow is lost to any RCP thermal barrier OR any RCP 41 seal outlet temperature offscale high, THEN dispatch AO with RWST area key to locally isolate seal injection to affected RCP:

~ V-300A for RCP A

~ V-300B for RCP B

2) Ensure HCV-142 open, demand at 0%.
b. Align charging pump suction to RWST:

o LCV-112B -

OPEN o

LCV-112C -

CLOSED

b. IF LCV-112B can NOT be opened, THEN perform the following:
1) Verify charging pump A NOT running and place in PULL STOP.
2) Dispatch AO to locally open manual charging pump suction from RWST (V-358 located in charging pump room):
c. Start charging pumps as necessary (75 kw each) and establish 75 gpm total charging flow 3)

WHEN V-358 open, THEN direct AO to close V-268 to isolate charging pumps B and C from VCT (V-268 located in charging pump room).

~ Charging line flow

~ Seal injection flow

EOPs ES-1.2 TLTLE$

POST LOCA COOLDOWN AND DEPRESSURIZATION REV: ll PAGE 6 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 4 Establish Condenser Steam Dump Pressure Control:

a. Verify condenser available:

o Any MSIV -

OPEN o

Annunciator G-15, STEAM DUMP ARMED - LIT

a. Place S/G ARV controllers in AUTO at desired pressure and go to Step 5.
b. Ad]ust condenser steam dump controller HC-484 to desired pressure and verify in AUTO
c. Place steam dump mode selector switch to MANUAL CAUTION IF CST LEVEL DECREASES TO LESS THAN 5 FEET, THEN ALTERNATE WATER SOURCES FOR AFV PUMPS VILL BE NECESSARY (REFER TO ER-AFW.1, ALTERNATE WATER SUPPLY TO AFV PUMPS),

NOTE:

TDAFV pump flow control valves fail open on loss of IA.

~&4m

b. Control feed narrow range

[25% adverse flow to maintain level between 178 CNMT] and 50%

  • 5 Monitor Intact S/G Levels:
a. Narrow range level -

GREATER THAN 5%

[25% adverse CNMT]

a. Maintain total feed flow greater than 200 gpm until narrow range level greater than 5%

[25%

adverse CNMT] in at least one S/G.

b. IF narrow range level in any S/G continues to increase in an uncontrolled manner, THEN go to E-3, STEAM GENERATOR TUBE
RUPTURE, Step 1.

EOP:

ES-1

~ 2 T!TLE0 POST LOCA COOLDOWN AND DEPRESSURIZATION REV: ll PAGE 7 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED NOTE:

Shutdown margin should be monitored during RCS cooldown (Refer to Figure SDM).

6 Initiate RCS Cooldown To Cold Shutdown:

a. Establish and maintain cooldown rate in RCS cold legs

- LESS THAN 100'F/HR

b. Use RHR system if in service c.

Dump steam to condenser from intact S/G(s)

c. Manually or locally dump steam using intact S/Gs
ARV, 7

Check RCS Subcooling Based On Manually operate SI pumps as Core EXit T/Cs - GREATER THAN necessary and go to Step 19.

O'F USING FIGURE MIN SUBCOOLING 8

Check SI and RHR Pump Status:

o SI pumps

- ANY RUNNING

-OR-Go to Step 15.

o RHR pumps

- ANY RUNNING IN INJECTION MODE 9 Place PRZR Heater Switches In The Fol&wing Positions:

. Sa o

PRZRgh'eater control group

- PULL STOP-,'-;,

o PRZR heater backup group

- OFF

t C

EOP:

ES-1.2 TITLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 8 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED

  • * * * * * * * * * * * * * * * * *p * * * * * * * * * * * * * * * * * * * * *
  • CAUTION VOIDING MAY OCCUR IN THE RCS DURING RCS DEPRESSURIZATION.

THIS WILL RESULT IN A RAPIDLY INCREASING PRZR LEVEL.

NOTE:

o WHEN using a PRZR PORV, THEN select one with an operable block valve.

o If auxiliary spray is in use, spray flow may be increased by closing normal charging valve AOV-294 and normal PRZR spray valves.

10 Depressurize RCS To Refill PRZR

a. Depressurize using normal PRZR spray if available
a. Depressurize using one PRZR PORV.

IF IA NOT available, THEN refer to Attachment N2 PORVS.

b.

PRZR level - GREATER THAN 13%

[40% adverse CNMT]

c. Stop RCS depressurization IF no PORV available, THEN use auxiliary spray valve (AOV-296).
b. Continue with Step 11.

WHEN level greater than 13%

[40%

adverse CNMT], THEN stop RCS depressurization.

EOP:

ES-1.2 TITLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 9 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED CAUTION IF RCP SEAL COOLING HAD PREVIOUSLY BEEN LOST, THEN THE AFFECTED RCP SHOULD NOT BE STARTED PRIOR TO A STATUS EVALUATION.

11 Check If An RCP Should Be Started:

a. Both RCPs STOPPED b.

RCS subcooling based on core exit T/Cs GREATER THAN O' USING FIGURE MIN SUBCOOLING a.

Stop all but one RCP and go to Step 12.

b.

Go to Step 19.

c.

PRZR level -

GREATER THAN 13%

[40% adverse CNMT]

d, Try to start an RCP

1) Establish conditions for starting an RCP o

Bus 11A or llB energized o

Refer to Attachment RCP START

c. Return to Step 10.
d. IF IA to CNMT available, THEN ensure at least one control rod shroud fan running (45 kw each).
2) Start one RCP

EOP:

ES-1.2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV:

11 PAGE 10 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 12 Check If One Of Three SI Pumps Should Be Stopped:

a. Three SI pumps

- RUNNING b.

RCS subcooling based on core exit T/Cs - GREATER THAN 35'F

[90'F adverse CNMT] USING FIGURE MIN SUBCOOLING a.

Go to Step 13.

b. IF RCS hot leg temperatures greater than 320'F [310'F adverse CNMTJ OR IF RHR normal cooling in service, THEN go to Step 19.

IF RHR normal cooling NOT in service AND RCS hot leg temperatures less than 320'F

[310'F adverse

'CNMT), THEN ensure at least one RHR pump running in injection mode and go to Step 12c.

IF no RHR pump can be operated in injection mode, THEN go to Step 19.

c.

Check PRZR level - GREATER THAN 13%

[40% adverse CNMT)

d. Stop one SI pump c.

Do NOT stop SI pump.

Return to Step 10.

EOP:

ES-1.2 TlTLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV:

11 PAGE ll of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 13 Check If One Of Two SI Pumps Should Be Stopped:

a.

Two SI pumps

- RUNNING

b. Determine required RCS subcooling from table:

a.

Go to Step 14.

Char'ging Pump Availability NONE ONE TWO THREE RCS Subcooling Criteria 120'F [200'F adverse CNMT]

115'F [190'F adverse CNMT]

105'F [180'F adverse CNMT]

100'F [175'F adverse CNMT]

c.

RCS subcooling based on core exit T/Cs - GREATER THAN VALUE FROM TABLE ABOVE USING FIGURE MIN SUBCOOLING d.

PRZR>1'evel

- GREATER THAN 13%

[40% adverse CNMT]

e.

Stop one SI pump

c. IF RCS hot leg temperatures greater than 320'F [310'F adverse CNMT] OR IF RHR normal cooling in service, THEN go to Step 19.

IF RHR normal cooling NOT in service AND RCS hot leg temperatures less than 320'F

[310'F adverse CNMT], THEN ensure at least one RHR pump running in injection mode and go to Step 13d.

IF no RHR pump can be operated in injection mode, THEN go to Step 19.

d.

Do NOT stop SI pump.

Return to Step 10.

EOP:

ES-1.2 TITLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV ll PAGE 12 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 14 Check If Last SI Pump Should Be Stopped:

a.

One SI puInp - RUNNING

b. Determine required RCS subcooling from table:
a. IF any RHR pump running in injection mode, THEN go to Step 19, IF NOT, THEN go to Step 15.

Charging Pump Availability NONE ONE THREE RCS Subcooling Criteria Insufficient subcooling to stop SI pump.

255'F [295'F adverse CNMT]

235'F [285'F adverse CNMT]

210'F [270'F adverse CNMT]

c.

RCS subcooling based on core exit T/Cs - GREATER THAN VALUE FROM TABLE ABOVE USING FIGURE MIN SUBCOOLING d.

PRZR level

- GREATER THAN 13%

[40% adverse CNMT]

e.

Stop running SI pump

c. IF RCS hot leg temperatures greater than 320'F [310'F

'dverse CNMT] OR IF RHR normal cooling in service, THEN go to Step 19.

IF RHR normal cooling NOT in service AND RCS hot leg temperatures less than 320'F

[310'F adverse CNMT], THEN ensure at least one RHR pump running in injection mode and go to Step 14d.

IF no RHR pump can be operated in injection mode, THEN go to Step 19.

d.

Do NOT stop SI pump.

Return to Step 10 '

EOP:

ES-1.2 TITLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 13 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 15 Check If Charging Flow Should Be Controlled To Maintain PRZR Level:

a.

Check RHR pumps

- RUNNING IN INJECTION MODE b.

Go to Step 19

a. Start charging pump and control charging flow to maintain PRZR level and go to Step 16.

CAUTION IF RCP SEAL COOLING HAD PREVIOUSLY BEEN LOST, THEN THE AFFECTED RCP SHOULD NOT BE STARTED PRIOR TO A STATUS EVALUATION.

16 Check RCP Status:

a.

RCPs

- AT LEAST ONE RUNNING

a. Perform the following:
1) Establish conditions for starting an RCP:

o Verify Bus llA or 11B energized.

o Refer to Attachment RCP START.

2) Start one RCP.
b. Stop all but one RCP IF an RCP can NOT be started, THEN verify natural circulation (Refer to Attachment NC).

IF natural circulation NOT

verified, THEN increase dumping steam.

EOP:

ES-1.2 TITLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV ll PAGE 14 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED

  • * * * * * * * * *
  • 4'
  • * * * * * * * * * *
  • 4' CAUTION VOIDING MAY OCCUR IN THE RCS DURING RCS DEPRESSURIZATION.

THIS WILL RESULT IN A RAPIDLY INCREASING PRZR LEVEL.

NOTE:

o WHEN using a PRZR PORV, THEN select one with an operable block

valve, o If auxiliary spray is in use, spray flow may be increased by closing normal charging valve AOV-294 and normal PRZR spray valves.

17 Depressurize RCS To Minimize RCS Subcooling:

a. Depressurize using normal PRZR spray if available
a. IF normal spray NOT available, THEN use one PRZR PORV.

IF IA NOT available, THEN refer to Attachment N2 PORVS.

b. Energize PRZR heaters as necessary
c. Depressurize RCS until EITHER of the following conditions satisfied:

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

o RCS-subcooling based on core exit T/Cs - LESS THAN 10'F USING FIGURE MIN SUBCOOLING

-OR-o PRZR level -

GREATER THAN 75%

(65% adverse CNMT]

EOP:

ES-1. 2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV ll PAGE 15 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 18 Verify Adequate Shutdown Margin

a. Direct HP to sample RCS for boron concentration
b. Verify boron concentration-GREATER THAN REQUIREMENTS OF FIGURE SDM
b. Borate as necessary.
  • 19 Monitor SI Reinitiation Criteria:

a.

RCS subcooling based on core exit T/Cs GREATER THAN O' USING FIGURE MIN SUBCOOLING

a. Manually operate SI pumps as necessary and go to Step 20.

b.

PRZR level -

GREATER THAN 5%

[30% adverse CNMT]

b. Manually operate SI pumps as necessary and return to Step 10.

EOP:

ES-1.2 TITLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 16 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 20 Check If SI ACCUMs Should Be Isolated:

a.

RCS subcooling based on core exit T/Cs - GREATER THAN O' USING FIGURE MIN SUBCOOLING b.

PRZR level - GREATER THAN 5%

[30% adverse CNMT]

c. Dispatch AO with locked valve key to locally close breakers for SI ACCUM discharge valves

~ MOV-841, MCC C position 12F

~ MOV-865, MCC D position 12C

d. Close SI ACCUM discharge valves

~ ACCUM A) MOV-841

~ ACCUM B, MOV-865

e. Locally reopen breakers for MOV-841 and MOV-865
a. IF both RCS hot leg temperatures less than 400'F, THEN go to Step 20c.

IF NOT, THEN go to Step 21.

b. Return to Step 10 Vent any unisolated ACCUMs:
1) Open vent valves for unisolated SI ACCUMs.

~ ACCUM A) AOV-834A

~ ACCUM B, AOV-834B

2) Open HCV-945.

EOP:

ES-1.2 T1TLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 17 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 21 Check If Emergency D/Gs Should Be Stopped:

a.'erify AC emergency busses energized by offsite power:

o Emergency D/G output breakers OPEN

a. Try to restore offsite power (Refer to ER-ELEC.l, RESTORATION OF OFFSITE POWER).

o AC emergency bus voltage-GREATER THAN 420 VOLTS o

AC emergency bus normal feed breakers CLOSED

b. Stop any unloaded emergency D/G and place in standby (Refer to Attachment D/G STOP) 22 Verify Adequate SW Flow To

'CW Hx:

a. Verify at least two SW pumps-RUNNING
b. Verify AUX BLDG SW isolation valves OPEN

~ MOV-4615 and MOV-4734

~ MOV&616 and MOV-4735

c. Verffjr.CNMT RECIRC fan annunc'iator C-2, HIGH TEMPERATURE ALARM - EXTINGUISHED
a. Manually start pumps as power supply permits (258 kw per pump).

IF less than two SW pumps can be operated, THEN go to Step 23.

b. Establish SW to AUX BLDG (Refer to Attachment AUX BLDG SW).
c. Dispatch AO to locally throttle flow to CCW Hx to between 5000 gpm and 6000 gpm total flow.

EOP:

ES-1.2 JOSTLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 18 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 23 Check RCP Cooling a.

Check CCW to RCPs Establish normal cooling to RCPs (Refer to Attachment SEAL COOLING).

o Annunciator A-7, RCP 1A CCW RETURN HIGH TENP OR LOW FLOW EXTINGUISHED o

Annunciator A-15, RCP 1B CCW RETURN HIGH TEMP OR LOW FLOW EXTINGUISHED b.

Check RCP seal injection o

Labyrinth seal D/Ps

- GREATER THAN 15 INCHES WATER

-OR-o RCP seal injection flow to each RCP - GREATER THAN 6 GPH

EOP:

ES-1 '

TITLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV:

11 PAGE 19 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 24 Check If Seal Return Flow Should Be Established:

a. Verify instrument bus D-ENERGIZED I
b. Verify RCP ¹1 seal outlet temperature

- LESS THAN 235'F r

c. Verify RCP seal outlet valves-OPEN

~ AOV-270A.

~ AOV-270B

a. Restore power to instrument bus D from MCC B or MCC A (maintenance supply).

b.

Go to Step 25.

c. Manually open valves as necessary.
d. Reset both trains of XY relays for RCP seal return isolation valve MOV-313 e.

Open RCP seal return isolation valve MOV-313

e. Perform the following:
1) 'Place MOV-313 switch to OPEN.
f. Verify RCP ¹1 seal leakoff flow LESS THAN 5.5 GPM r W ~

r-

g. Verify RCP ¹1 seal leakoff flow GREATER THAN 0.25 GPM
2) Dispatch AO with key to RWST gate to locally open MOV-313.
f. IF any RCP seal leakoff flow greater than 5.5
gpm, THEN perform the following:

o Close the affected RCP seal discharge valve

~ RCP A, AOV-270A

~ RCP B, AOV-270B o

Trip the affected RCP IF both RCP seal discharge valves are shut, THEN go to Step 25.

g. Refer to AP-RCP.1, RCP SEAL MALFUNCTION.

EOP:

ES-1.2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 20 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED NOTE:

Adverse CNMT conditions or loss of forced air cooling may result in

'ailure of NIS detectors.

25 Check If Source Range Detectors Should Be Energized:

a.

Source range channels DEENERGIZED a.

Go to Step 25e.

b.

Check intermediate range flux-EITHER CHANNEL LESS THAN 10 10 AMPS

b. Perform the following:
1) IF neither intermediate range channel is decreasing, THEN initiate boration.
2) Continue with Step 26.

WHEN flux is LESS THAN 10 amps on any operable

channel, THEN do Steps
25c, d and e.

c.

Check the following:

o Both intermediate range channels

- LESS THAN 10 AMPS

c. Continue with Step 26.

WHEN either condition met, THEN do Steps 25d and e.

-OR-o Greater than 20 minutes since reactor trip

d. Verify source range detectors-ENERGIZED
d. Manually energize source range detectors by depressing P-6 permissive defeat pushbuttons (2

of 2)

~

IF source ranges can NOT be

restored, THEN refer to ER-NIS.1, SR MALFUNCTION and go to Step 25.
e. Transfer Rk-45 recorder to one source range and one intermediate range channel

EOP:

ES-1.2 TITLE:

POST LOCA COOLDONN AND DEPRESSURIZATION REV 11 PAGE 21 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 26 Establish Normal Shutdown Alignment:

a.

Check condenser

- AVAILABLE

a. Dispatch AO to perform Attachment SD-2.
b. Perform the following:

o Open generator disconnects

~ 1G13A71

~ 9X13A73 o

Place voltage regulator to OFF o

Open turbine drain valves o

Rotate reheater steam supply controller cern to close valves o

Place reheater dump valve switches to HAND o

Stop all but one condensate pump

c. Verify adequate Rx head cooling:
1) Check IA to CNMT - AVAIIABLE 1)

Go to Step 26d.

2) Verify at least one control rod shroud fan - RUNNING
3) Verify one Rx compartment c'ooling fan - RUNNING

~~t ~

2) Manually start one fan as power supply permits (45 kw)
3) Perform the following:

o Dispatch AO to reset UV relays at MCC C and MCC D.

o Manually start one fan as power supply permits (23 kw)

d. Verify Attachment SD-1 COMPLETE

EOP:

ES-1.2 TITLE:

POST'OCA COOLDONN AND DEPRESSURIZATION REV:

11 PAGE 22 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 27 Check If RCPs Must Be Stopped:

a.

RCPs

- ANY RUNNING b.

Check the following:

o RCP ¹1 seal D/P - LESS THAN 220 PSID a.

Go to Step 28.

b.

Go to Step 28.

-OR-o RCP ¹1 seal leakoff - LESS THAN 0.25 GPM

c. Stop affected RCP(s) 28 Check Condenser Steam Dump Available - CONDENSER VACUUM GREATER THAN 20 INCHES HG Use intact S/G ARV for RCS temperature control.

29 Check If RHR Normal Cooling Can Be Established:

a.

RCS cold leg temperature LESS THAN 350'F a, Return to Step l.

b.

RCS pressure

- LESS THAN 400 psig [300 psig adverse CNMTj

c. Place RCS overpressure protection system in service (Refer to 0-7, ALIGNMENT AND OPERATION OF THE REACTOR VESSEL OVERPRESSURE PROTECTION SYSTEM)
d. Consult TSC to determine if RHR normal cooling should be established using Attachment RHR COOL b.

Go to Step 30.

EOP:

ES-1.2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV:

11 PAGE 23 of 23 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED NOTE:

This procedure should be continued while obtaining CNMT hydrogen sample in Step 30.

30 Check CNMT Hydrogen Concentration:

a. Dire'ct HP to start CNMT hydrogen monitors as necessary
b. Hydrogen concentration

- LESS THAN 0.5%

b. Consult TSC to determine if hydrogen recombiners should be placed in service.

31 Check Core Exit T/Cs LESS THAN 200'F Return to Step l.

32 Evaluate Long Term Plant Status:

a. Maintain cold shutdown conditions
b. Consult TSC

-END-

EOP:

ES-1.2 POST LOCA COOLDOWN AND DEPRESSURIZATION REV:

11 PAGE 1 of 1 ES-1.2 APPENDIX LIST TITLE PAGES 1)

RED PATH

SUMMARY

2)

FIGURE MIN SUBCOOLING 3)

FIGURE SDM 4)

ATTACHMENT SEAL COOLING 5)

ATTACHMENT RCP START 6)

ATTACHMENT NC 7)

ATTACHMENT D/G STOP 8)

ATTACHMENT SD-1 9)

ATTACHMENT SD-2 10)

ATTACHMENT SI/UV 11)

ATTACHMENT N2 PORVS 12)

ATTACHMENT RHR COOL 13)

ATTACHMENT AUX BLDG SW 14)

FOLDOUT

EOP:

ES-1.2 T1TLEt POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 1 of 1 RED PATH

SUMMARY

a.

SUBCRITICALITY Nuclear power greater than 54 b.

CORE COOLING Core exit T/Cs greater than 1200'F

-OR-Core exit T/Cs greater than 700'F AND RVLIS level (no RCPs) less than 434

[464 adverse CNMT]

c.

HEAT SINK - Narrow range level in all S/Gs less than 5%

[254 adverse CNMT] AND total feedwater flow less than 200 gpm d.

INTEGRITY Cold leg temperatures. decrease greater than 100'F in last 60 minutes AND RCS cold leg temperature less than 285'F e.

CONTAINMENT CNMT pressure greater than 60 psig

EOP:

ES-1.2 T ITLE!

POST LOCA COOLDOWN AND DEPRESSURIZATION REV 11 PAGE 1 of 1 FIGURE MIN SUBCOOLING NOTE:

Subcooling Margin = Saturation Temperature From Figure Below [-] Core Exit T/C Indication RC 2500 2400 2300 2200 2100 2000 1900 1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0

S PRESSURE (PSIG)

RCS PRESSURE INCREHENTS 20 PSIG SUBCOOLED REGION ADVERSE CNHT NORHAL CNHT INADEQUATE SUBCOOLING REGION TEHPERATURE INCREHENTS 10'F 200 250 300 350 400 450 500 550 600 650 700 CORE EXIT SATURATION TEHPERATURE

(

F)

EOP:

ES-1.2 POST'LOCA COOLDOWN AND DEPRESSURIZATION REV:

11 PAGE 1 of 1 FIGURE SDM NOTE:

o Curve includes allowance for one stuck rod.

Add 100 ppm for each additional stuck rod.

o To obtain core burnup, use PPCS turn on code BURNUP.

BORON CONCENTRATION (PPH) 1800 1600 BORON INCREMENTS 20 PPH 1400

'200 1000 ADEQUATE SDH 100 PPH CONSERVATISM INCLUDED 800 600 400 BORATE 200 BURNUP INCREMENTS 100 HWD/HTU 0

1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 CYCLE 23 BURNUP (HWD/HTU)

EOP:

ES-1.2 T1TLE:

POST LOCA COOLDOWN AND DEPRESSURIZATION REV:

11 PAGE 1 of 1 FOLDOUT PAGE 1.

SI REXNITIATION CRITERIA IF EITHER condition listed below occurs, THEN manually operate SI pumps as necessary:

o RCS subcooling based on core exit T/Cs LESS THAN O'F USING FIGURE MIN SUBCOOLING OR-o PRZR level - CHARGING CAN NOT CONTROL LEVEL GREATER THAN 54

[304 adverse CNMT]

2.

SI TERMXNATION CRITERIA IF ALL conditions listed below occur, THEN go to ES-1.1, SI TERMINATION, Step 1:

a.

RCS subcooling based on core exit T/Cs GREATER THAN O'F USING FIGURE MIN SUBCOOLING

b. Total feed flow to intact S/Gs GREATER THAN 200 GPM OR Narrow range level in at least one intact S/G - GREATER THAN 54 [254 adverse CNMT]

c.

RCS pressure:

o GREATER THAN 1625 PSIG

[1825 psig adverse CNMT]

o STABLE OR INCREASING d.

PRZR level - GREATER THAN 54

[304 adverse CNMT]

3.

SECONDARY INTEGRITY CRITERIA IF any S/G pressure is decreasing in an uncontrolled manner or is completely depressurized AND has not been isolated, THEN go to E-2, FAULTED S/G ISOLATION, Step 1.

4 ~

COLD LEG RECIRCULATION SWITCHOVER CRITERION IF RWST, level decreases to less than 284, THEN go to ES-1.3, TRANSFER TO COLD LEG RECIRCULATION, Step 1.

5.

AFW SUPPLY SWITCHOVER CRITERION IF CST level decreases to less than 5 feet, THEN switch to alternate AFW water supply (Refer to ER-AFW.1, ALTERNATE WATER SUPPLY TO AFW PUMPS).

6. E-3 TRANSITION CRITERIA IF any S/G level increases in an uncontrolled manner or any S/G has abnormal radiation, THEN go to E-3, STEAM GENERATOR TUBE RUPTURE, Step 1.
Retrieved from "https://kanterella.com/w/index.php?title=ML17263A264&oldid=5106683"