ML17264A808
| ML17264A808 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 01/23/1997 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17264A809 | List: |
| References | |
| PROC-970123, NUDOCS 9702030051 | |
| Download: ML17264A808 (106) | |
Text
EOP: T1TLE:
REV 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 1 of 16 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER RESPONSIB MANAGER EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:
970203005i 970%23 PDR ADQCK 05000244 F PDR I
EOP: TITLE:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 2 of 16 A. PURPOSE This procedure provides actions to recover from a loss of reactor or secondary. coolant.
B. ENTRY CONDITIONS/SYMPTOMS
- 1. ENTRY CONDITIONS This procedure is entered from:
- a. E-O, REACTOR TRIP OR SAFETY INJECTION, and FR-,H.l, RESPONSE TO LOSS OF SECONDARY HEAT SINK, when a PRZR PORV is stuck open and -its block valve can not be closed.
- b. E-O, REACTOR TRIP OR SAFETY INJECTION, with any of the following symptoms: high containment radiation, high containment pressure, or high containment, recirculation sump level.
c ~ E 0 g REACTOR TRIP OR SAFETY INJECTION g ECA 2 ~ 1 g UNCONTROLLED DEPRESSURIZATION OF BOTH STEAM GENERATORS, and FR-H.1, RESPONSE TO LOSS OF SECONDARY .HEAT SINK, when RCS pressure is less than the shutoff head pressure of the RHR pumps or is decreasing.
- d. ES-1.1, SI TERMINATION, and FR-I.2, RESPONSE TO LOW PRESSURIZER LEVEL, if SI has to be reinitiated.
- e. E-2, FAULTED STEAM GENERATOR ISOLATION, after identification and isolation of a faulted S/G.
after normal injection mode conditions are established.
g.. ECA-1.2, LOCA OUTSIDE CONTAINMENT, when a LOCA outside containment is isolated.
- h. FR-C.l, RESPONSE TO INADEQUATE CORE COOLING, and FR-C.2, RESPONSE TO DEGRADED CORE COOLING, after core cooling has been reestablished.
i FR H 1 g RESPONSE pressure TO'OSS OF SECONDARY HEAT S INKJ is less than all non-faulted if S/G(s) pressure.
- j. FR-H.1, RESPONSE TO LOSS OF SECONDARY HEAT SINK, after secondary heat sink has been reestablished and all PRZR PORVs are close. '.
EOO: TITLE:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 3 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION 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 1.
NOTE: o FOLDOUT page should be open AND monitored periodically.
Critical Safety Function Status Trees should be monitored. (Refer to Appendix 1 for Red Path Summary.)
J Conditions should be evaluated for Site Contingency Reporting (Refer to EPIP-1.0, GINNA STATION EVENT EVALUATION AND CLASSIFICATION).
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 RCP Trip Criteria:
- b. SI pumps - AT LEAST TWO RUNNING b. Go to Step 2.
- c. RCS pressure minus maximum S/G c. Go to Step 2.
pressure - LESS THAN,175 psig
[400 psig adverse CNMT]
- d. Stop both RCPs
T!TLE:
REV 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 4 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2 Cheek If S/G Is Intact:
Secondary Side IF any S/G pressure decreasing in an uncontrolled manner OR completely depressurized, THEN o Pressure in both S/Gs - STABLE verify faulted S/G isolated unless OR INCREASING needed for RCS cooldown:
o Pressure in both S/Gs - GREATER ~ Steamlines THAN 100 PSIG ,
~ Feedlines IF NOT, THEN go to E-2, FAULTED STEAM GENERATOR ISOLATION, Step 1.
CAUTION IF CST LEVEL DECREASES TO LESS THAN 5 FEET, THEN ALTERNATE WATER SOURCES FOR AFW PUMPS WILL BE NECESSARY (REFER TO ER-AFW.1, ALTERNATE WATER SUPPLY TO AFW PUMPS).
NOTE: TDAFW pump flow control valves fail open on loss of IA.
- 3 Monitor Intact 8/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%
adverse CNMT] in at least one S/G.
- b. Control feed flow to maintain b. IF narrow range level in any S/G narrow range level between 17% continues to increase in an
[25% adverse CNMT] and 50% uncontrolled manner, THEN go to E-3, STEAM GENERATOR TUBE RUPTURE, Step 1.
EOP: TITLE:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT 5 of
'AGE 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 4 Check. Secondary Radiation IF steamline radiation monitors NOT Levels - NORMAL available, THEN dispatch AO to locally check steamline radiation.
o Steamline radiation monitor (R-31 and R-32) IF abnormal radiation levels detected in any S/G, THEN go to o Request HP sample S/Gs for E-3, STEAM GENERATOR TUBE RUPTURE, activity Step l.
CAUTION IF ANY PRZR PORV OPENS BECAUSE OF HIGH PRZR PRESSURE, IT SHOULD BE CLOSED AFTER PRESSURE DECREASES TO LESS THAN 2335 PSIG (REFER TO STEP 5B).
- 5 Monitor PRZR PORV Status:
- a. Power to PORV block valves a., Restore power to block valves AVAILABLE unless block valve was closed to isolate an open PORV:
~ MOV-515, MCC D position 6C
~ MOV-516, MCC C position 6C,
IF any PORV can NOT be closed,,
THEN manually close its'lock valve. IF block valve can NOT be closed, THEN dispatch AO to locally check breaker,
~ MOV-515, MCC D position 6C
~ MOV-516, MCC C position 6C
- c. Block valves - AT LEAST ONE OPEN c. Op'n one block valve unless it was closed to isolate an open PORV.
EOP: T!ALE:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 6 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION IF OFFSITE POWER IS LOST AFTER SI RESET, THEN SELECTED SW PUMPS AND ONE CCW PUMP WILL AUTO START ON EMERGENCY D/G. MANUAL ACTION WILL BE REQUIRED TO RESTART SAFEGUARDS EQUIPMENT.
6 Reset SI 7 Reset CI:
- a. Depress CI reset pushbutton
- b. Verify annunciator'A-26, CNMT b. Perform the following:
ISOLATION - EXTINGUISHED
- 1) Reset SI.
- 2) Depress CI reset pushbutton.
8 Verify Adequate 8Ã Plow:
- a. Check at least two SW pumps a. Manually start SW pumps as power RUNNING supply permits (258 kw each).
IF less, than two SW pumps running, THEN perform the following:
- 1) Ensure SW isolation.
- 2) Disp'atch AO to establish normal shutdown alignment (Refer to Attachment SD-1)
- 3) Go to Step 10.
- b. Dispatch AO to establish normal shutdown alignment (Refer to Attachment SD-1)
EOP:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 7 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 9 Establish ZA to CNMT:
- a. Verify non-safeguards busses a. Perform the following:
energized from offsite power
- 1) Close non-safeguards bus tie o Bus 13 normal feed - CLOSED breakers:
-OR- ~ Bus 13 to Bus 14 tie
~ Bus 15 to Bus 16 tie o Bus 15 normal feed - CLOSED
- 2) Verify adequate emergency D/G capacity to run air compressors (75 kw each).
IF NOT,'HEN evaluate RECIRC fans should be stopped if CNMT (Refer to Attachment CNMT RECIRC FANS).
- 3) WHEN bus 15 restored, THEN reset control room lighting.
- b. Verify turbine building SW b. Manually align isolation valves - OPEN valves'.
~ MOV-4613 and MOV-4670
~ MOV-4614 and MOV-4664 c, Verify at least two air Manually start air compressors compressors - RUNNING as power supply permits (75 kw each). IF air compressors can NOT be started, THEN dispatch AO to locally reset compressors as
- necessary.
- d. Check IA supply: d. Perform the following:
o Pressure - GREATER THAN 1) Continue attempts to restore 60 PSIG IA (Refer to AP-IA.1, LOSS OF INSTRUMENT AIR).
o Pressure - STABLE OR INCREASING 2) Continue with Step 10. WHEN IA restored, THEN do Steps 9e and f.
EOP:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 8 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 10 Check Normal Power Available Verify adequate emergency D/G To Charging Pumps: capacity to run charging pumps (75 kw each).
o Bus 14 normal feed breaker-CLOSED IF NOT, THEN evaluate if CNMT RECIRC fans can be stopped (Refer o Bus 16 normal feed breaker- to Attachment CNMT RECIRC FANS).
CLOSED
EOP:
REV 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 9 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 11 Check If Charge.ng Flow Has Been Established:
- a. Charging pumps - ANY RUNNING a. Perform the following;
- 1) IF CCW flow is lost to any RCP thermal barrier OR any RCP ¹1 seal. outlet temperature offscale high, THEN dispatch AO with key to RWST gate to close seal injection needle valve(s) to affected RCP:
~ V-300A for RCP A V-300B for RCP B
- 2) Ensure HCV-142 open, demand at OS.'.
Charging pump suction aligned to b. Manually align valves as RWST: necessary..
o LCV-112B - OPEN IF LCV-112B can NOT be opened, THEN perform the following:
o LCV-112C - CLOSED
- 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).
- 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 and adjust charging flow to restore PRZR level
EOP: TITLE:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 10 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 12 Check Zf SZ Should Be Terminated:
o Pressure - GREATER THAN 1625 psig [1825 psig adverse CNMT]
o Pressure - STABLE OR INCREASING
USING FIGURE MIN SUBCOOLING
- c. Secondary heat sink: c. IF neither condition satisfied, THEN do NOT stop SI pumps. Go o Total feed flow to intact to Step 14.
S/Gs - GREATER THAN 200 GPM
-OR-o Narrow range level in at least one intact S/G-GREATER THAN 5% [25% adverse CNMT]
- d. PRZR level - GREATER THAN 5% d. Do NOT stop SI pumps. Perform
[30$ adverse CNMT] the following:
- 1) IF normal PRZR spray available, THEN try to stabilize RCS pressure with PRZR spray.
- 2) Go to Step 14.
EOP: TITLE:
REV: 14 E-l LOSS OF REACTOR OR SECONDARY COOLANT PAGE ll of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 13 Go To ES-1.1, SZ TERMZNATZON, Step 1
- 14 Monitor Zf CNMT Spray Should Be Stopped:
- a. CNMT spray pumps - RUNNING a. Go to Step 15.
- b. Check the following: b. Continue with Step 15. WHEN BOTH conditions satisfied, THEN o CNMT pressure - LESS THAN do Steps 14c through f.
4 PSIG o Sodium hydroxide tank level LESS THAN 55%
- c. Reset CNMT spray
- d. Check NaOH tank outlet valves d. Place NaOH tank outlet valve CLOSED controllers to MANUAL and close valves.
~ AOV-836A
~ AOV-836B
- e. Stop CNMT spray pumps and place in AUTO
- f. Close CNMT spray pump discharge valves
~ MOV-860A
~ MOV-860B
~ MOV-860C
.+ MOV-860D
EOP: TITLE:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 12 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION o IF OFFSITE POWER IS LOST AFTER SI RESET, THEN SELECTED SW PUMPS AND ONE CCW PUMP WILL AUTO START ON EMERGENCY D/G. MANUAL ACTION WILL BE REQUIRED TO RESTART SAFEGUARDS EQUIPMENT.
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.
- 15 Monitor Zf RHR Pumps Should Be Stopped:
- a. Check RCS pressure:
- 1) Pressure - GREATER THAN 1) Go to Step 17.
250 psig [465 psig adverse CNMT]
INCREASING
- a. Check pressures in both S/Gs a. Return to Step l.
STABLE OR INCREASING
- b. Check pressures in both S/Gs- b. Monitor RCS pressure. IF RCS GREATER THAN 100 PSIG pressure does NOT increase after faulted S/G dryout, THEN go to Step 17,
DECREASING
EOP: TITLE:
REV 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 13 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 17 Check Zf Emergency D/Gs Should Be Stopped:
- a. Verify AC emergency busses a. Perform, the following:
energized by offsite power:
- 1) Close non-safeguards bus tie o Emergency D/G output breakers breakers as necessary:
OPEN
~ Bus 13 to Bus 14 tie o AC emergency bus voltage- ~ Bus 15 to Bus 16 tie GREATER THAN 420 VOLTS
- 2) Place the following pumps in o AC emergency bus normal feed PULL STOP:
breakers - CLOSED
~ EH pumps
~ Turning gear oil pump
~ HP seal oil backup pump
- 3) Ensure condenser steam dump mode control in MANUAL.
- 4) Restore power to MCCs:
~ A from Bus 13
~ B from Bus 15
~ E from Bus 15
~ F from Bus 15
- 5) WHEN bus 15 restored, THEN reset control room lighting breaker.
- 6) Refer to Attachment SI/UV for other equipment lost with loss of offsite power.
- 7) Try to restore offsite power (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER).
- b. Stop any unloaded emergency D/G and place in standby (Refer to Attachment D/G STOP)
Qi EOP: TITLE:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 14 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 18 Verify CNMT Sump Recirculation Capability:
- 1) Power available to emergency IF at least one train of cold AC busses and MCCs required leg recirculation capability can for CNMT sump recirculation NOT be verifie'd, THEN go to ECA-1.1, LOSS OF EMERGENCY o Bus 14 and bus 18 COOLANT RECIRCULATION, Step l.
ENERGIZED o MCC C - ENERGIZED o Bus 16 and bus 17 ENERGIZED o MCC D - ENERGIZED
- b. Check SW pumps - AT LEAST 2 b. Attempt to restore at least 2 SW PUMPS AVAILABLE pumps to operable. IF only 1 SW pump available, THEN refer to Attachment MIN SW for additional guidance.
- c. Dispatch AO to check AUX BLDG cd IF any RHR pump seal leakage sub-basement for RHR system indicated, THEN leakage should leakage (AUX BLDG sub-basement be evaluated and isolated if key may be required) necessary.
EOP: TITLE:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 15 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 19 Evaluate Plant Status:
- a. Check auxiliary building a. Notify HP and refer to radiation - .NORMAL appropriate AR-RMS procedure.
~ Plant vent iodine (R-10B) IF the cause is a loss of RCS
~ Plant vent particulate (R-13) inventory outside CNMT, THEN go
~ Plant vent gas (R-14) to ECA-1.2, LOCA OUTSIDE CONTAINMENT, Step 1.
~ CCW liquid monitor (R-17)
~ LTDN line monitor (R-9)
+ CHG pump room (R-4)
- b. Direct HP to obtain following samples:
~ RCS activity
~ BASTs boron
- c. Verify adequate Rx head cooling:
- 1) Verify at least one control 1) Manually start one fan as rod shroud 'fan - RUNNING power supply permits (45 kw)
- 2) Verify one Rx compartment 2) Perform the following:
cooling fan - RUNNING r o Dispatch AO to reset UV relays at MCC C and MCC D.
\
o Manually start one fan as power supply permits (23 kw)
0 EOP:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 16 of 16 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 20 Check If RCS Coooldown Depressurisation And Is Required:
- a. RCS pressure - GREATER THAN a. IF RHR pump flow greater than 250 psig [465 psig adverse CNMT] 475 gpm, THEN go to Step 21.
- b. Go to ES-1.2, POST LOCA COOLDOWN AND DEPRESSURIZATION, Step 1 21 Check If Transfer To Cold Recirculation Is Required:
Leg
- a. RUST level - LESS THAN 28% a. Return to Step 18.
- b. Go to ES-1.3, TRANSFER TO COLD LEG RECIRCULATION, Step 1
-END-
REV: 14 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 1 of 1 E-1 APPENDIX LIST TITLE PAGES
- 1) RED PATH
SUMMARY
- 2) FIGURE MIN SUBCOOLING
- 3) ATTACHMENT CNMT RECIRC
- 4) ATTACHMENT D/G STOP
- 5) ATTACHMENT SD-1
- 6) ATTACHMENT SI/UV
- 7) ATTACHMENT MIN SW
- 8) ATTACHMENT AUX BLDG SW
- 10) FOLDOUT
Il EOP:
REV: 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT 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 adverse CNMT] AND total feedwater flow 54'254 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: TITLE:
REV 14 E-1 LOSS OF RFACTOR OR SECONDARY COOLANT 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 SUBCOOLED 1300 REGION 1200 1100 1000 900 800 INADE(UATE 700 SUBCOOLING 600 REGION ADVERSE CNHT 500 400 300 200 NORMAL CNHT TEHPERATURE INCREHENTS 10'F 100 0
200 250 - 300 350 400 450 500 550. 600 650 700 CORE EXIT SATURATION TEHPERATURE ('F)
EOP: T1TLE:
REV 14 E-1 LOSS OF REACTOR OR SECONDARY COOLANT PAGE 1 of 1 FOLDOUT PAGE 1~ SI REINITIATION 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 5%
[304 adverse CNMT]
2 ~ SI TERMINATION CRITERIA IF ALL conditions listed below occur, THEN go to ES-l.l, 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 [30% 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.
EOP:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 1 of 28 ROCHESTER GAS AND ELECTRIC CORPORATION CzINNA STATION CONTROLLED COPY NUMBER RESPONSIB MANAGER EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:
EOP: T1TLE:
REV 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 2 of 28 A.'URPOSE This procedure provides actions to restore emergency coolant recirculation capability, to delay depletion of the RWST by adding makeup and reducing outflow, and to depressurize the RCS to minimize break flow.
B. ENTRY CONDITIONS/SYMPTOMS
- 1. ENTRY CONDITIONS This procedure is entered from:
- a. E-l, LOSS OF REACTOR OR SECONDARY COOLANT, when cold leg recirculation capability cannot be verified.
b ~ ES 1 3 ~ TRANSFER TO COLD LEG RECIRCULATION/
when recirculation cannot be established or maintained.
c ~ ECA 1 ~ 2 g I LOCA OUTS DE CONTAINMENTg when a LOCA outside containment cannot be isolated.
'v 0
EOP: T1TLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 3 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION o IF EMERGENCY COOLANT RECIRCULATION CAPABILITY IS RESTORED DURING THIS PROCEDURE, FURTHER RECOVERY ACTIONS SHOULD CONTINUE BY RETURNING TO PROCEDURE AND STEP IN EFFECT.
o IF SUCTION SOURCE IS LOST TO ANY SI OR CNMT SPRAY PUMP, THE PUMP SHOULD BE STOPPED.
NOTE: Adverse CNMT values should be used whenever CNMT ~ressure is greater than 4 psig or CNMT radiation is greater than 10+ R/hr.
1 Verify CNMT Sump Recirculation Capability:
- a. Check RHR system: a. Manually or locally try to restore at least one train o RHR pumps - OPERABLE (Refer to Attachment RHR SYSTEM to identify minimum components o RHR suction valves from sump for one train).
B - OPERABLE
~ MOV-850A
~ MOV-850B o RHR pump discharge to Rx vessel deluge valves OPERABLE
~ MOV-852A
~ MOV-852B o CCW pumps - OPERABLE o CCW to RHR Hx - OPERABLE
~ MOV-738A
~ MOV-738B
- b. Check at least two SW pumps b. Manually start SW pumps as power RUNNING supply permits (258 kw each).
EOP: T1TLE:
I REV'2 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 4 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2 Add Makeup To RWST As Ne'cessary o Refer to S-9J, BLENDING TO RWST
-OR-o Refer to S-3.2D, TRANSFERRING WATER FROM CVCS HUT(S) TO RWST OR SFP
-OR-o Refer to Attachment SFP-RWST CAUTION IF CST LEVEL DECREASES TO LESS THAN 5 FEET, THEN ALTERNATE WATER SOURCES FOR AFW PUMPS WILL BE NECESSARY (REFER TO ER-AFW.l, ALTERNATE WATER SUPPLY TO AFW PUMPS).
NOTE: TDAFW pump flow control valves fail open on loss of IA.
- 3 Moni.tox 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%
adverse CNMT] in at least one S/G.
- b. Control feed flow to maintain b. IF narrow range level in any S/G narrow range level between 17% continues to increase, THEN stop
[25% adverse CNMT] and 50% feed flow to that S/G.
EOP:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 5 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: Shutdown margin should be monitored during RCS cooldown (Refer to Figure SDM).
4 Initiate RCS Cooldown To Cold Shutdown:
- a. Establish and maintain cooldown rate in RCS cold legs - LESS THAN 100'F/HR
- b. Dump steam to condenser from b. Manually or locally dump steam intact S/G(s) from intact S/G(s):
o Use S/G ARVs
-OR-o Open TDAFW pump steam supply valves.
-OR-o Dispatch AO to perform the following:
- 1) Open S/G MSIV bypass valves.
- 2) Open priming air ejector steam supply root valve, V-3578.
- 3) Open 1A and 1B priming air ejector isolation valves.
~ V-3580
~ V-3581 IF no intact S/G available, THEN use faulted S/G.
EOP:
REV 12 ECA-1. 1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 6 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 5 Verify CNMT RECZRC Fans Running:
- a. All fans - RUNNING a. Manually start fans.
- b. Charcoal filter dampers green b. Dispatch personnel with relay status lights - EXTINGUISHED rack key to locally open dampers using trip relay pushbuttons in relay room racks.
~ AUX RELAY RACK RA-2 for fan A
~ AUX RELAY RACK RA-3 for fan C
- 6 Monitor RWST Level - GREATER Go to Step 25.
THAN 15%
EOP: T1TLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 7 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 7 Determine CNMT Spray Recpxirements:
- a. Determine number of CNMT spray pumps required from table:
CNMT CNMT RWST CNMT RECIRC FANS SPRAY PUMPS LEVEL PRESSURE RUNNING REQUIRED GREATER THAN 60 PSIG GREATER 0 OR 1 THAN BETWEEN 28% 28 PSIG AND 60 PSIG 2 OR 3 ALL THAN 28 PSIG GREATER THAN 60 PSIG 28'ESS BETWEEN 0, 1, 2, OR 3 15'ND BETWEEN 28 PSIG AND 60 PSIG ALL LESS THAN 28 PSIG LESS THAN 15$
- b. CNMT spray pumps running - EQUAL b. Manually operate CNMT spray TO MINIMUM NUMBER REQUIRED pumps as necessary.
IF CNMT spray pump(s) must be stopped, THEN place switch in PULL STOP.
EOP: TITLE:
REV: 12 ECA-1 1 ~ LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 8 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION IF OFFSITE POWER IS LOST AFTER SI RESET, THEN SELECTED SW PUMPS AND ONE CCW PUMP WILL AUTO START ON EMERGENCY D/G. MANUAL ACTION WILL BE REQUIRED TO RESTART SAFEGUARDS EQUIPMENT.
8 Reset SI If Necessary 9 Establish One Train Of SI Flow
RUNNING
250 psig [465 psig adverse CNMT]
IF no RHR pumps running, THEN start one RHR pump.
10 Verify No Backflow From RRST To Sump:
- a. Any RHR suction valve from a. IF both RHR suction valves from sump B - OPEN sump B closed, THEN go to Step 11.
~ MOV-850A
~ MOV-850B
~
suction (MOV-856) - CLOSED
- 1) Place MOV-856 key switch to ON
- 2) Manually close valve IF valve can NOT be closed manually, THEN direct AO to locally close valve.
EOP:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 9 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ll Reset CI:
- a. Depress CI reset pushbutton
- b. Verify annunciator A-26, CNMT b. Perform the following:
ISOLATION - EXTINGUISHED
- 1) Reset SI.
- 2) Depress CI reset pushbutton.
12 Verify Adequate SR Flow:
- a. Check at least two SW pumps a. Manually start SW pumps as power RUNNING supply permits (258 kw each).
IF less than two SW pumps running, THEN perform the following:
- 1) Ensure SW isolation.
- 2) Dispatch AO to establish normal shutdown alignment (Refer to Attachment SD-1)
- 3) Go to Step 15.
- b. Dispatch AO to establish normal shutdown alignment (Refer to Attachment SD-1)
EOP: TITLE:
REV: 12 ECA-1. 1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 10 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 13 Establish IA to CNMT
- a. Verify non-safeguards busses a. Perform the following:
energized from offsite power
- 1) Close non-safeguards bus tie o Bus 13 normal feed - CLOSED breakers:
-OR- ~ Bus 13 to Bus 14 tie
~ Bus 15 to Bus 16 tie o Bus 15 normal feed - CLOSED
- 2) Verify adequate emergency D/G capacity to run air compressors (75 kw each).
IF NOT, THEN evaluate RECIRC fans should be if CNMT stopped (Refer to Attachment CNMT RECIRC FANS).
- 3) WHEN bus 15 restored, THEN reset control room lighting.
- b. Verify SW isolation valves to b. Manually align valves.
turbine building - OPEN
~ MOV-4613 and MOV-4670
~ MOV-4614 and MOV-4664
- c. Verify at least two air c. Manually start air compressors compressors - RUNNING as power supply permits (75 kw each) ~ IF air compressors can NOT be started, THEN dispatch AO to locally reset compressors as necessary.
- d. Check IA supply: d. Perform the following:
o Pressure - GREATER THAN 1) Continue attempts to restore 60 PSIG IA'(Refer to AP-IA.l, LOSS OF INSTRUMENT AIR).
o Pressure - STABLE OR INCREASING 2) Continue with Step 14. WHEN IA restored, THEN do Steps 13e and f.
I'i EOP:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 11 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 14 Establish Required Charging Line Plow:
- a. Charging pumps - ANY RUNNING a. Perform the following:
- 1) IF CCW flow is lost to any RCP thermal barrier OR any RCP ¹1 seal outlet temperature offscale high, THEN dispatch AO with RWST area key to locally close seal injection needle valves to affected RCP:
~ RCP A, V-300A
~ RCP B, V-300B
- 2) Ensure HCV-142 demand at 0%.
- 3) Start one charging pump.
- b. Establish 20 gpm total charging flow
I EOP:
REV 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 12 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION IF RCP SEAL COOLING HAD PREVIOUSLY BEEN LOST, THEN THE AFFECTED RCP(S) SHOULD NOT BE STARTED PRIOR TO A STATUS EVALUATION.
15 Check RCP Status:
exit T/Cs - GREATER THAN O' USING FIGURE MIN SUBCOOLING
- b. RCPs - AT LEAST ONE RUNNING b. Try to start an RCP:
- 1) Establish conditions for starting an RCP o Bus 11A or 11B energized o Refer to Attachment RCP START
- 2) Start one RCP.
- c. Stop all but one RCP
A 0
EOP:
REV: 12 ECA-1. 1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 13 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED
- a. RCS subcooling based on core o Determine required injection exit T/Cs - GREATER THAN 50'F flow using Figure MIN RCS USING FIGURE MIN SUBCOOLING INJECTION
- b. Check RVLIS indication: o Stop SI pumps as necessary to establish and maintain minimum o Level (no RCPs) - GREATER required SI flow.
THAN 68% [73% adverse CNMT]
o IF required injection flow is
-OR- less than 100 gpm, THEN establish required charging flow o Fluid fraction (any RCP and go to Step 17.
running) - GREATER THAN 80%
IF required injection flow is greater than 100 gpm, THEN perform the following:
- a. Ensure one SI pump running
- b. Establish minimum charging flow for RCP seal injection.
(Locked valve key required.)
- d. Go to Step 18.
TITLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 14 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 17 Stop SI And RHR Pumps And Place In Auto 18 Verify Adequate RCS Makeup Flaw:
- a. Check RVLIS indication: a. Increase RCS injection flow as necessary to maintain RVLIS o -Level (no RCPs) - GREATER indication stable.
THAN 68% [73% adverse CNMT]
-OR-o Fluid fraction (any RCP running) - GREATER THAN 80%
- b. Core exit T/Cs - STABLE-OR b. Increase RCS injection flow to DECREASING maintain core exit T/Cs stable or decreasing.
EOP: TITLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 15 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: If normal RCP support conditions can NOT be satisfied, then any running RCP(s) should be stopped.
19 Depressurize RCS To Decrease RCS Subcooling:
- a. Check RCS subcooling based on a. Go to Step 20.
core exit T/Cs - GREATER THAN 20'F USING FIGURE MIN SUBCOOLING
- b. Normal PRZR spray -AVAILABLE b. Use one PRZR PORV. IF IA NOT available, THEN refer to Attachment N2 PORVS.
IF no PRZR PORV available, THEN use auxiliary spray valve (AOV-296).
- 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
-OR-o PRZR level - GREATER THAN 75%
[65% adverse CNMT]
- d. WHEN either condition met, THEN stop RCS depressurization
- e. Check RCS subcooling - GREATER e. Increase RCS makeup flow as THAN O'F USING FIGURE MIN necessary to restore subcooling.
SUBCOOLING
EOP: TITLE:
12 ECA-1 1 ~ LOSS OF EMERGENCY COOLANT RECIRCULATION'EV:
PAGE 16 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 20 Check Can Be IfEstablished:
RHR Normal Cooling
- a. RCS cold leg temperature - LESS a. Go to Step 21.
THAN 350'F
- b. RCS pressure - LESS THAN b. Go to Step 21.
400 psig [300 psig adverse CNMTj
- c. Place letdown pressure controller (PCV-135) in MANUAL CLOSED
- d. Check following valves - OPEN d. Perform the following:
~ AOV-371, letdown isolation 1) Reset both trains of XY valve relays for AOV-371 and
~ AOV-427, loop B cold leg to AOV-427.
REGEN Hx
~ At least one letdown orifice 2) Open AOV-371.
valve (AOV-200A, AOV-200B, or AOV-202) 3) Place AOV-427 switch to OPEN.
- 4) Open one letdown orifice valve.
- e. Verify pressure on PI-135 - LESS e. Go to Step 21.
THAN 400 PSIG
- f. Place RCS overpressure protection system in service (Refer to 0-7, ALIGNMENT AND OPERATION OF THE REACTOR VESSEL OVERPRESSURE PROTECTION SYSTEM)
0 0
EOP: TITLE:
REV: 12 ECA-1 1 ~ LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 17 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 21 Check Isolated:
If SI ACCUMs Should Be
- a. Both RCS hot leg temperatures a. Continue with Step 22. WHEN LESS THAN 400'F both RCS hot leg temperatures less than 400'F, THEN do Steps 21b, c and d.
~ MOV-841, MCC C position 12F
~ MOV-865, MCC D position 12C
- c. Close SI ACCUM discharge valves c. Vent any unisolated ACCUMs:
~ MOV-841 1) Open vent valves for
~ MOV-865 unisolated SI ACCUMs.
~ ACCUM A, AOV-834A
~ ACCUM B, AOV-834B
- 2) Open HCV-945.
- d. Locally reopen breakers for MOV-841 and MOV-865
- 22 Monitor RCP Operation:
- a. RCPs - ANY RUNNING a. Go to Step 23.
- b. Check the following: b. Stop affected RCP(s).
o RCP ¹1 seal D/P - GREATER THAN 220 PSID, o Check RCP seal leakage WITHIN THE NORMAL OPERATING RANGE OF FIGURE RCP SEAL LEAKOFF
~~
EGP: TITLE:
REV'2 ECA-1. 1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 18 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 23 Check Core Exit T/Cs- Go to Step 38.
GREATER THAN 200'F 24 Check RWST Level - LESS THAN Return to Step 1.
15%
25 Minimize RWST Outflow:
- a. Any SI pump(s) - RUNNING a. IF charging pump suction aligned to RWST, THEN perform the following:
- 2) Start one SI pump and verify flow.
t
- 3) Stop running charging pumps.
- 4) Go to Step 25e.
- b. Stop all but one SI pump
- c. Check charging pump suction from c. Go to Step 25e.
RWST (AOV-112B) - OPEN
- d. Stop all charging pumps
- e. Stop both CNMT spray pumps
- f. Stop both RHR pumps
i
~~
EOP: TITLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 19 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 26 Check SZ pump flow - STABLE IF SI flow zero or erratic, THEN running SI pump. 'top 27 Try To Add Makeup To RCS From VCT
- a. Check VCT level - GREATER THAN 5% a. Stop charging pumps taking suction from VCT and continue with Step 28. WHEN VCT level greater than 5%, THEN do Steps 27b and c.
- b. Verify charging pumps aligned to b. Manually align valves as VCT necessary.
o LCV-112C - OPEN o LCV-112B - CLOSED
- c. Start charging pumps as necessary to establish two pumps running
EOP: TITLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 20 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 28 Establish Maximum VCT Makeup:
- a. Check RMW control armed - RED a. Place RMW mode switch in AUTO LIGHT LIT and place RMW control switch to START.
- b. Check VCT level - LESS THAN 20% b. Continue with Step 29. WHEN VCT level less than 20%, THEN do Steps 28c, d and e.
- c. Check VCT makeup system- c. Perform the following:
OPERATING IN AUTO
- 1) Open makeup system valves.
~ AOV-110B
~ AOV-llOC
~ AOV-111
- 2) Start BA transfer pumps and RMW pumps.
- 3) Open boric acid flow control valve (AOV-llOA).
- d. Increase VCT makeup flow
- 1) Start both RMW pumps
- 2) Start both boric acid pumps
- 3) Adjust RMW controller (HC-111) to maximum flow from table BAST CONC (PPM) FLOW (GPM) 8750 (5%) 40 10500 (6%) 50 12250 (7%) 60 14000 (8%) 70 15750 (9%) 80 17500 (10%) 90
- 4) Adjust boric acid flow controller (HC-110A) in MANUAL to 9.5 gpm
- e. Adjust charging pump speed to stabilize VCT level
~ e EOP: TITLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 21 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 29 Try To Add Makeup To RCS From Alternate Source:
- b. Consult TSC to determine other means of makeup 30 Verify SI ACCUM Isolation IF valves were closed to prevent SI Valves - OPEN ACCUM nitrogen injection, THEN go to Step 34.
~ MOV-841
~ MOV-865 IF NOT, THEN perform the following: 4
~ MOV-841, MCC C position 12F
~ MOV-865, MCC D position 12C
- b. Open SI ACCUM discharge valves.
EOP: TITLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 22 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 31 Depressurize All Intact S/Gs To 785 PSIG:
- a. Check S/G pressures - GREATER a. Go to Step 32.
THAN 785 PSIG
- b. Dump steam to condenser at b. Manually or locally dump steam maximum rate at maximum rate from intact S/G(s):
o Use S/G ARVs
-OR-o Open steam supply v'alves to TDAFW pump
-OR-o Dispatch AO to perform the.
following:
- 1) Open S/G MSIV bypass valves.
- 2) Open priming air ejector steam isolation valves
~ V-3580
~ V-3581
- c. Check S/G pressures - LESS THAN c. Return to Step 3lb.
785 PSIG
- d. Stop S/G depressurization
~ I EOP: TITLE:
REV: 12 ECA-1.1 -LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 23 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: The intent of Step 32 is to depressurize S/Gs more slowly, but at a rate that will maintain required RVLIS level.
32 Depressurize Intact S/Gs To 200 PSIG Slowly To Inject SI ACCUMs:
- a. Dump steam to condenser as a. Manually or locally dump steam necessary to maintain from intact S/G(s) to maintain appropriate RVLIS indication: appropriate RVLIS indication:
o Level (no RCPs) - BETWEEN 68% o Use S/G ARVs AND 73% [73% AND 76% adverse CNMTj -OR-
-OR- o Open steam supply valves to TDAFW pump o Fluid fraction (any RCP running) - BETWEEN 80% AND 90% -OR-o Dispatch AO to perform the following:
l) Open affected S/G MSIV bypass valve.
- 2) Open priming air ejector steam isolation valves
~ V-3580
~ V-3581
- b. Check S/G pressures - LESS THAN b. Return to Step 32a.
200 PSIG
- c. Stop S/G depressurization
EOP: TITLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 24 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 33 Check If SI Isolated:
ACCUMs Should Be
- a. Both RCS hot leg,temperatures a. Continue with Step 34. WHEN LESS THAN 400'F both RCS hot leg temperatures less than 400'F, THEN do Steps 33b, c and d.
~ MOV-841, MCC C position 12F
~ MOV-865, MCC D position 12C cd Close SI ACCUM discharge valves c. Vent any unisolated ACCUMs:
~ MOV-841 1) Open vent valves for
~ MOV-865 unisolated SI ACCUMs
~ ACCUM A, AOV-834A
~ ACCUM B, AOV-834B
- 2) Open HCV-945.
- d. Locally reopen breakers for MOV-841 and MOV-865
- 34 Monitor RCP Operation:
- a. RCPs - ANY RUNNING'.
- a. Go to Step 36.
Check the following: b. Stop affected RCP(s).
o RCP ¹1 seal D/P - GREATER THAN 220 PSID o Check RCP seal leakage-WITHIN THE NORMAL OPERATING RANGE OF FIGURE RCP SEAL LEAKOFF
EOP: TITLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECZRCULATZON PAGE 25 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 35 Check SZ Pump Flow - STABLE IF SI flow zero or erratic, THEN stop running SI pump.
36 Depressuri.ze All 'Zntact S/Gs To Atmosphere.c Pressure:
- a. Maintain cooldown rate in RCS cold legs - LESS THAN 100'F/HR
- b. Dump steam to condenser b. Manually or locally dump steam from intact S/G(s):
o Use S/G ARVs
-OR-o Open steam supply valves to TDAFW pump
-OR-o Dispatch AO to perform the following:
- 1) Open S/G MSIV bypass valves.
- 2) Open priming *air ejector steam isolation valves
~ V-3580
~ V-3581
EOP: TITLE:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 26 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 37 Check Can Be IfEstablished:
RHR Normal Cooling
- a. RCS cold leg temperature - LESS a. Return to Step 35:
THAN 350'F
- b. RCS pressure - LESS THAN b. Return to Step 35.
400 psig [300 psig adverse CNMTj
- c. Place letdown pressure
~
controller in MANUAL CLOSED
- d. Check following valves - OPEN d. Perform the following:
~ AOV-371, letdown isolation 1) Reset both trains of XY valve relays for AOV-371 and
~ AOV-427, loop B cold leg to AOV-427.
REGEN Hx
~ At least one letdown orifice 2) Open AOV-371 and AOV-427.
valve (AOV-200A, AOV-200B, or AOV-202) 3) Open one letdown orifice valve.
- e. Verify pressure on PI-135 - LESS e. Return to Step 36.
THAN 400 PSIG
- f. Place RCS overpressure protection system in service (Refer to 0-7, ALIGNMENT AND OPERATION OF THE REACTOR VESSEL OVERPRESSURE PROTECTION SYSTEM)
EOP:
REV: 12 ECA-1 1 ~ LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 27 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 38 Maintain RCS Heat Removal:
- a. Use RHR system if in service
- b. Dump steam to condenser from b. Manually or locally dump steam intact S/Gs from intact S/G(s):
o Use S/G ARVs
-OR-o Open steam supply valves to TDAFW pump
-OR-o Dispatch AO to perform the following:
- 1) Open S/G MSIV bypass
,valves')
Open priming air ejector steam isolation valves
~ V-3580
~ V-3581 IF no intact S/G available and RHR system NOT in service, THEN use faulted S/G.
~ I ~ ~
0
EOP:
REV: 12 ECA-1.1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 28 of 28 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: This procedure should be continued while obtaining CNMT hydrogen sample in Step 39.
39 Check CNMT Hydrogen Concentration:
- b. Hydrogen concentration - LESS b. Consult TSC to determine if THAN 0.5% hydrogen recombiners should be placed in service.
40 Consult TSC
-END-
EOP:
REV: 12 ECA-1. 1 LOSS OF EMERGENCY COOLANT RECIRCULATION PAGE 1 of 1 ECA-1.1 APPENDIX LIST TITLE PAGES
- 1) FIGURE MIN SUBCOOLING
- 2) FIGURE SDM
- 3) FIGURE MIN RCS INJECTION
- 4) FIGURE RCP SEAL LEAKOFF
- 5) ATTACHMENT RHR COOL
- 6) ATTACHMENT SFP-RWST
- 7) ATTACHMENT RCP START
- 8) ATTACHMENT SD-1
- 9) ATTACHMENT CNMT RECIRC FANS
- 10) ATTACHMENT RHR SYSTEM
- 11) ATTACHMENT N2 PORVS
,4 I I~
EOP:
REV: 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of 19 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER RESPONSIBLE AGER EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:
EOP: TITLE:
REV: 20 ES-1.3 TRANSFER TO'OLD LEG RECIRCULATION PAGE 2 of 19 A. PURPOSE This procedure provides the necessary instructions for'transferring the Safety Injection system and Containment Spray system to recirculation modes of operation.
B. ENTRY CONDITIONS/SYMPTOMS
- 1. ENTRY CONDITIONS This procedure may be entered from:
- a. E-1, LOSS OF REACTOR OR SECONDARY COOLANT, or,
- c. ECA-2.1, UNCONTROLLED DEPRESSURIZATION OF ALL STEAM GENERATORS, or,
- d. FR-C.1, RESPONSE TO INADEQUATE CORE COOLING, or,
- e. FR-C.2, RESPONSE TO DEGRADED CORE COOLING, or,
- f. FR-C.3, RESPONSE TO SATURATED CORE COOLING, or,
- g. FR-H.l, RESPONSE TO LOSS OF SECONDARY .HEAT SINK, or,
- h. FR-Z.1, RESPONSE TO HIGH CONTAINMENT PRESSURE, on low RWST level.
- i. Other procedures whenever RWST level reaches the switchover setpoint (284).
,t, l EOP: J I Tl.E:
REV: 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 3 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION o INJECTION FLOW TO THE RCS SHALL BE MAINTAINED AT ALL TIMES.
o IF OFFSITE POWER IS LOST AFTER SI RESET, THEN SELECTED SW PUMPS AND ONE CCW PUMP WILL AUTO START ON EMERGENCY D/G. MANUAL ACTION WILL BE REQUIRED TO RESTART SAFEGUARDS EQUIPMENT.
o CONSULT WITH RADIATION PROTECTION BEFORE DISPATCHING PERSONNEL TO AUXILIARY BUILDING.'WITCHOVER TO RECIRCULATION MAY CAUSE HIGH RADIATION LEVELS.
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 Verify CNMT Sump B Level- IF RWST level is less than 28% AND GREATER THAN 113 INCHES CNMT sump B level is less than 113 inches, THEN go to ECA-1.2, LOCA OUTSIDE CONTAINMENT, Step 1.
NOTE: Steps 2 through 12 should be performed without delay. FR procedures should not be implemented prior to completion of these steps.
2 Reset SI
EOP: T1TLE:
REV: 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 4 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: IF D/Gs supp'ying emergency AC busses, THEN non-essential loads may be shed as necessary to allow start of additional SW pumps.
I 3 Establish Adequate 8% Flow:
- a. Verify at least two SW pumps- a. Start additional SW pumps as RUNNING power supply permits (258 kw each). IF only 1 SW pump
,ope'rable, THEN perform the following:
- 1) Ensure 'Attachment MIN SW is complete.
- 2) Go to Step 4 ~
- b. Verify AUX BLDG SW isolation b. Establish SW to AUX BLDG (Refer valves - OPEN to Attachment AUX BLDG SW).
~ MOV-4615 and MOV-4734
! MOV-4616 and MOV-4735
flow to CCW Hxs - GREATER THAN 5000 GPM 1) Isolate SW to screenhouse and air conditioning headers.
~ MOV-4609 and MOV-4780
~ MOV-4663 and MOV-4733
- 2) Direct AO to locally adjust total SW flow to the CCW Hxs to between 5000 gpm and 6000 gpm (V-4619 and V-4620).
~ SFP Hx A (V-4622)
~ SFP Hx B (V-8689)
- 4) Verify SW portions of Attachment SD-1 are complete.
EOP: TITLE:
REV: 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 5 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 4 Establi.sh CCP. flaw to RHR Hxs:
~ MOV-738A
~ MOV-738B
- * *. * * * * * * * * * * * * * * * *
- 4 * * * * * * * * *' * * * * * * * * *
- CAUTION o CONSULT WITH RADIATION PROTECTION BEFORE DISPATCHING PERSONNEL TO AUXILIARYBUILDING. SWITCHOVER TO RECIRCULATION MAY CAUSE HIGH RADIATION LEVELS.
o THE RHR HX OUTLET. VALVES (HCV-624 AND HCV-625) WILL FAIL OPEN ON LOSS OF INSTRUMENT AIR PRESSURE 5 Check RHR Plow: Manually adjust RHR Hx outlet valves equally to reduce flow to o Both RHR pumps - RUNNING less than 1500 gpm per operating pump ~
o RHR flow (FI-626) - LESS THAN 1500 GPM PER OPERATING PUMP ~ RHR Hx B, HCV-624
~ RHR Hx A, HCV-625 IF'low can NOT be reduced manually, THEN dispatch an AO to locally adjust RHR Hx outlet manual valves equally to reduce flow.
~ RHR Hx B, V-715
~ .RHR Hx A, V-717
EOP: TITLE:
REV: 20 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 6 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION ANY PUMPS TAKING SUCTION FROM RWST SHOULD BE STOPPED UPON REACHING RWST LO-LO LEVEL ALARM.
6 Check ZP Unnecessary Pumps Can Be Stopped:
- a. Three SI pumps - RUNNING a. Go to" Step 6c.
- b. Stop SI pump C and place both switches in PULL STOP
- d. Pull stop one CNMT spray pump
- e. Stop both RHR pumps and place in PULL STOP
'I Q i J I
EOP:
REV: 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 7 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 7 Verify RHR System Alignment:
- a. Verify the following valves a. Ensure at least one suction CLOSED valve and one discharge valve closed.
o RHR suction valves from loop A hot leg
~ MOV-700
~ MOV-701 o RHR discharge valves to loop B cold leg
~ MOV-720
~ MOV-721
- b. Verify RHR pump suction crosstie b. Manually open valves. If valves valves - OPEN can NOT be opened, THEN dispatch AO to locally open valves.
~ MOV-704A
~ MOV-704B
- c. Verify the following valves c. Ensure at least one valve in OPEN each set open.
o RHR pump discharge to Rx vessel deluge valves
~ MOV-852A
~ MOV-852B o RHR suction from sump B (inside CNMT)
~ MOV-851A
~ MOV-851B
- d. Verify RCDT pump suction valves d. Manually close valves.
from sump B - CLOSED
~ MOV-1813A
~ MOV-1813B
0 ': ~
EOP:
REV: 20 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 8 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION RHR FLOW INDICATED ON FI-626 SHOULD BE LIMITED TO 1500 GPM PER OPERATING PUMP TO ENSURE OPTIMUM PUMP PERFORMANCE.
8 Initiate RHR Sump Recirculation:
- a. Close RWST outlet valve to RHR a. Dispatch AO to locally close pump suction, MOV-856 (turn on valve and continue with Step 8b.
DC power key switch)
- b. Open both RHR suction valves b. IF only one valve will open, from sump B (outside CNMT) THEN perform the following:
o MOV-850A - OPEN 1) Initiate only one train of RHR recirculation (Refer to o MOV-850B - OPEN Attachment RHR NPSH for further guidance).
- 2) Go to 8d.
IF neither valve will open, THEN refer to Attachment RHR PRESS REDUCTION for further guide'nce.
- c. Start both RHR pumps
- d. Verify at least one RHR pump- d. IF no RHR pump can be started, RUNNING THEN go to ECA-1.1, LOSS OF EMERGENCY COOLANT RECIRCULATION, Step 1.
~ *~ .". > ~
I d
~ 4 l
EOP: TITLE REV: 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 9 of 19 STEP 'CTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: The TSC should be requested to establish periodic monitoring of the AUX BLDG sub-basement, as radiological conditions permit, to monitor RHR pump operation.
9 Check RWST Level - LESS THAN DO NOT continue with this procedure 154 until RWST level is less than 15%.
10 Stop All Pumps Suppli.ed Prom RWST:
- a. Stop all SI pumps and place in PULL STOP
- b. Stop all charging pumps
- c. Stop operating CNMT spray pump and place in PULL STOP
- d. Check CNMT pressure - LESS THAN d. Go to Step 11.
28 PSIG
- e. Reset CNMT spray if necessary
- f. Close CNMT spray pump discharge valves
~ MOV-860A
~ MOV-860B
~ MOV-860C .
~ MOV-860D
1 EOP: TITLE:
REV: 20 ES-1.3 , TRANSFER TO COLD LEG RECIRCULATION PAGE 10 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION RHR FLOW MUST BE MAINTAINED LESS THAN 1500 GPM PER OPERATING RHR PUMP AS DETERMINED BY THE TOTAL OF FI-931A, FI-931B AND FI-626 INDICATIONS.
ll Align SZ And CNMT Spray Sump Recirculation:
For a: Verify SI pump suction valves a. Ensure at least one valve in from BASTs - CLOSED each flowpath closed.
~ MOV-826A and MOV-826B
~ MOV-826C and MOV-826D
and CNMT spray pumps (turn on DC power key switches)
~ MOV-896A
+ MOV-896B
- c. Close SI pump RECIRC valves c. Ensure at least one valve closed.
~ MOV-898
~ MOV-897
- d. Verify SI pump suction valves d. Ensure at least one valve open.
from RWST - OPEN
~ MOV-825A
~ MOV-825B
- e. Align RHR Hx outlet flow paths e. Ensure at least one flowpath to SI and CNMT spray pump suction aligned from RHR pump(s) to SI and CS pump suction header o MOV-857A and MOV-857C - OPEN (Refer to Attachment RHR SYSTEM).
o MOV-857B - OPEN IF neither flow path 'can be aligned, THEN refer to Attachment RHR PRESS REDUCTION for further guidance.
EOP: TITLE:
REV: 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 11 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION SI PUMPS SHOULD BE STOPPED IF RCS PRESSURE IS GREATER THAN THEIR SHUTOFF HEAD PRESSURE.
NOTE: Operation of SI pump C is preferred since it delivers to both RCS loops.
12 Verify Adecpxate RCS Makeup Plow
- a. RCS pressure - LESS THAN a. Perform the following:
'225 psig [425 psig adverse CNMT]
- 1) Check RCS conditions:
o RCS subcooling based on core exit T/Cs greater than Figure MIN SUBCOOLING.
o PRZR level greater than 5%
[30$ adverse CNMT].
IF either condition NOT met, THEN start one SI pump.
- 2) Go to Step 13.
o Core exit T/Cs - LESS THAN REQUIREMENTS OF FIGURE RHR INJECTION o Check RVLIS level (no RCPS)
GREATER THAN 43% [46% adverse CNMT]
EOP: T!TLE:
REV: 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 12 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION IF A CNMT SPRAY PUMP IS STARTED, THEN CNMT PRESSURE SHOULD BE CLOSELY MONITORED. CNMT PRESSURE SHOULD NOT BE REDUCED TO LESS THAN 32 PSIG.
13 Cheek, If CNMT Spray Requi.red:
Is
- a. CNMT pressure - GREATER THAN a. Perform the following:
37 PSIG
- 1) IF CNMT spray previously actuated and NaOH tank level greater than 55%, THEN consult TSC to determine CNMT spray should be if restarted.
- 2) Go to Step 14.
- b. Verify CNMT spray pump discharge b. Manually open valve(s) for valves - OPEN selected pump.
~ MOV-860A ~ CS pump A, MOV-860A or MOV-860B
~ MOV-860B ~ CS pump B, MOV-860C or MOV-860D
~ MOV-860C
~ MOV-860D
- c. Start selected CNMT spray pump c. IF the selected CNMT spray pump will not start, THEN align and start the other CNMT spray pump.
IF neither pump will start, THEN continue with Step 14. WHEN a CNMT spray pump can be started, THEN do steps 13d, e and f.
- d. Adjust RHR flow to maintain less than 1500 gpm per operating RHR pump as indicated by the total of FI-931A, FI-931B and FI-626 indications.
- e. Open NaOH tank outlet valves for running pump
~ CS pump A, AOV-836A
~ CS pump B, AOV-836B
EOP: TITLE:
REV'0 ES-1. 3 TRANSFER TO COLD LEG RECIRCULATION PAGE 13 cf 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 14 Verify Adequate Core Cooling: IF both RHR pumps running, THEN ensure two SI pumps running.
o Core exit T/Cs - STABLE OR DECREASING IF only one RHR pump running, THEN perform the following:
o RVLIS level (no RCPs) - STABLE OR INCREASING a. Ensure one SI pump running.
o RVLIS level (no RCPs) - GREATER b. WHEN CNMT spray pumps stopped, THAN 43% [46% adverse CNMT) THEN start one additional SI pump CAUTION IF CST LEVEL DECREASES TO LESS THAN 5 FEET, THEN ALTERNATE WATER SOURCES FOR AFW PUMPS WILL BE NECESSARY (REFER TO ER-AFW.1 ALTERNATE WATER SUPPLY TO AFW PUMPS).
NOTE: .TDAFW pump flow control valves fail open on loss of IA.
- 15 Monitor Intact S/G Levels:
- a. Narrow range level - GREATER a. Maintain total feed flow greater THAN 5% [25% adverse CNMTJ than 200 gpm until narrow range level greater than 5% [25%
adverse CNMT] in at least one S/G.
- b. Control feed flow to maintain narrow range level between 17%
[25% adverse CNMT) and 50$
EOP: TlTLE:
REV: 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 14 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 16 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) Verify at least one control 1) Manually start one fan as rod shroud fan" - RUNNING power supp).y permits (45 kw)
- 2) Verify one Rx compartment 2) Perform the following:
cooling fan - RUNNING 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 COMPLETE
f4 ECP: T1TLE REV 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 15 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 17 Check Zf Emergency D/Gs Should Be Stopped:
- a. Verify AC emergency busses a. Try to restore offsite power energized by offsite power: (Refer to ER-ELEC.1, RESTORATION OF OFFSITE POWER).
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)
a EOP: TITLE:
REV: 20 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 16 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 18 Check Zf SZ ACCUMs Should Be Isolated:
- a. Both RCS hot leg temperatures a. Continue with Step 19. WHEN-LESS THAN 400'F both RCS. hot leg temperatures less than 400'F, THEN do Steps 18b through d.
~ MOV-841, MCC C position 12F
~ MOV-865, MCC D position 12C"
- c. Close SI ACCUM discharge valves c. Vent any unisolated ACCUMs:
~ ACCUM A, MOV-841 1) Open vent valves for
~ ACCUM B, MOV-865 unisolated SI ACCUMs.
~ ACCUM A, AOV-834A
~ ACCUM B, AOV-834B
- 2) Open HCV-945.'
- d. Locally reopen breakers for MOV-841 and MOV-865
l w
'4 ~
0
EOP: ~TITLE REV: 20 ES-1E3 TRANSFER TO COLD LEG RECZRCULATZON PAGE 17 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION IF FUEL DAMAGE'S SUSPECTED, MAINTAIN S/G PRESSURE SLIGHTLY GREATER THAN RCS PRESSURE.
19 Check Zf Zntact 8/Gs Should Be Depressurized To, RCS Pressure:
- a. RCS pressure - LESS THAN INTACT a. Go to Step 20, S/G PRESSURES
- b. Direct RP to sample S/Gs for activity
- c. Request TSC perform a dose projection on steaming S/Gs
- d. Dose projection for each S/G- d. Do NOT dump steam from a S/G ACCEPTABLE with an unacceptable dose projection.
- e. Dump steam to condenser from e. IF steam dump to condenser NOT
~
intact S/G(s) until S/G pressure available, THEN dump steam using less than RCS pressure intact S/G ARVs until S/G pressure less than RCS pressure.
20 Consult TSC to Determine Zf Rz Vessel Head Should Be
, Vented
I$
s 'l II ll
EOP: TITLE:
REV: 20 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 18 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: This procedure should be continued while obtaining CNMT hydrogen sample in Step 21.
21 Check CNMT Hydrogen Concentration:
- b. Hydrogen concentration - LESS b. Consult TSC to determine if THAN 0.5% hydrogen recombiners should be placed in service.
NOTE: The TSC should be consulted before changing recirculation lineups.
22 Check Event Duration- Consult TSC to evaluate long term GREATER THAN 19 HOURS APTER plant status.
EVENT INITIATION 23 Place CNMT Spray Pumps Zn PULL STOP 24 Verify Two SZ Pumps - RUNNING Manually start pumps.
25 Check Core Exit T/Cs - LESS Perform the following:
THAN REQUIREMENTS OP PZGURE RHR INJECTION a. Manually open both PRZR PORVs and block valves.
- b. Verify core exit T/Cs, decreasing to less than requirements of Figure RHR INJECTION. IF NOT, THEN dump steam from intact S/Gs until core exit T/Cs less than required.
REV: 20 ES-1.3 TRANSFER TO COJD LEG RECIRCULATION PAGE 19 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 26 Consult TSC To Evaluate Long Term Plant Status
-END-
\
5
EOP: TlTLE0 REV: 20 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of 1 ES-1.3 APPENDIX LIST TITLE PAGES
- 1) RED PATH
SUMMARY
- 2) FIGURE RHR INJECTION
- 3) FIGURE MIN SUBCOOLING
- 4) ATTACHMENT D/G STOP
- 5) ATTACHMENT SD-1
- 6) ATTACHMENT SD-2
- 8) ATTACHMENT RHR SYSTEM
- 9) ATTACHMENT AUX BLDG SW
- 11) ATTACHMENT MIN SW
- 12) ATTACHMENT RHR PRESS REDUCTION
- 13) FOLDOUT
e EOP: TITLE:
REV'0 ES-1.,3 TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of 1 a
RED PATH
SUMMARY
- a. SUBCRITICALITY Nuclear power greater than 5%
- 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 43% [46%
adverse CNMT]
- c. HEAT SINK Narrow range level in all S/Gs less than 5%
[25% 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
c %4'