ML030030423
| ML030030423 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 12/19/2002 |
| From: | Widay J Rochester Gas & Electric Corp |
| To: | Clark R Document Control Desk, NRC/NRR/DLPM/LPD1 |
| References | |
| ES-1.3, Rev 35 | |
| Download: ML030030423 (27) | |
Text
R ASubsidiaryof RGS Energy Group, Inc.
www.rge.com ROCHESTER GAS AND ELECTRIC CORPORATION ° 89 EAST AVENUE, ROCHESTER, N.Y. 14649.0001 - 716-771-3250 JOSEPH A. WIDAY VICE PRESIDENT &PLANT MANAGER GINNA STATION December 19, 2002 U.S. Nuclear Regulatory Commission Document Control Desk Attn: Robert Clark Project Directorate I Washington, D.C. 20555
Subject:
Emergency Operating Procedures R.E. Ginna Nuclear Power Plant Docket No. 50-244
Dear Mr. Clark:
As requested, enclosed are Ginna Station Emergency Operating Procedures.
Very truly yours, s~eph A.Wida JAW/jdw xc: U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406-1415 Ginna USNRC Senior Resident Inspector Enclosure(s):
REPORT NO. 01 REPORT: NPSP0200 GINNA NUCLEAR POWER PLANT PROCEDURES INDEX
( 12/19/02 PAGE: 3
(
DOC TYPE: PRES EQUIPMENT SUB- PROCEDURE PARAMETERS: DOC TYPE*S - PRER PRES PRPT STATUS: EF QU 5 YEARS ONLY:
PROCEDURE EFFECT LAST NEXT NUMBER PROCEDURE TITLE REV DATE REVIEW REVIEW ST ES-O.0 REDIAGNOSIS 010 05/01/98 05/01/98 05/01/03 EF ES-0.1 REACTOR TRIP RESPONSE 020 07/25/02 05/01/98 05/01/03 EF ES-0.2 NATURAL CIRCULATION COOLDOWN 012 05/01/98 05/01/98 05/01/03 EF ES-0.3 NATURAL CIRCULATION COOLDOWN WITH STEAM VOID IN VESSEL 008 05/01/98 05/01/98 05/01/03 EF ES-1.1 SI TERMINATION 023 08/13/02 05/01/98 05/01/03 EF ES-1.2 POST LOCk COOLDOWN AND DEPRESSURIZATION 024 07/25/02 05/01/98 05/01/03 EF ES-i. 3 TRANSFER TO COLD LEG RECIRCULATION 035 12/19/02 05/01/98 05/01/03 EF ES-3.1 POST-SGTR COOLDOWN USING BACKFILL 014 07/25/02 05/01/98 05/01/03 EF ES-3.2 POST-SGTR COOLDOWN USING SLOWDOWN 015 07/25/02 05/01/98 05/01/03 EF ES-3.3 POST-SGTR COOLDOWN USING STEAM DUMP 015 07/25/02 05/01/98 05/01/03 EF TOTAL FOR PRES 10
EOP: THlLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of 22 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER 0p RESPONSIBLý)MANAGER EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:___________
EWi: TIRLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 2 of 22 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 BOTH 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.I, RESPONSE TO LOSS OF SECONDARY HEAT SINK, or,
- h. FR-Z.I, RESPONSE TO HIGH CONTAINMENT PRESSURE, on low RWST level.
- i. Other procedures whenever RWST level reaches the switchover setpoint (28%).
EOP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 3 of 22 SSTEP ACTION/EXPECTED RESPONSEI RESPONSE NOT OBTAINEDI CAUTION o IF OFFSITE POWER IS LOST AFTER SI RESET. THEN MANUAL ACTION MAY BE REQUIRED TO RESTART SAFEGUARDS EQUIPMENT. (REFER TO ATT-8.5. ATTACHMENT LOSS OF OFFSITE POWER) o CONSULT WITH RADIATION PROTECTION BEFORE DISPATCHING PERSONNEL TO AUXILIARY BUILDING. SWITCHOVER 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+05 R/hr.
1* Verify RWST level - GREATER IF sump recirculation NOT in THAN 15% progress. THEN pull-stop all pumps taking suction from RWST. EXCEPT one SI pump AND go to ECA-I.1. LOSS OF EMERGENCY COOLANT RECIRCULATION.
Step 1.
2 Verify CNMT Sump B Level - AT IF RWST level is less than 28% AND LEAST 113 INCHES CNMT sump B level is less than 113 inches. THEN go to ECA-1.2.
LOCA OUTSIDE CONTAINMENT. Step 1.
NOTE: Steps 3 through 13 should be performed without delay. FR procedures should not be implemented prior to completion of these steps.
3 Reset SI
EOP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 4 of 22 STP CION/EXPECTED RSPONSEI RESPONSE NOT OBTAINEDI NOTE: IF D/Gs supplying emergency AC busses. THEN non-essential loads may be shed as necessary to allow start of additional SW pumps.
4 Establish Adequate SW Flow:
- a. Verify at least two SW pumps a. Start additional SW pumps as RUNNING power supply permits (257 kw each). IF only 1 SW pump operable, THEN perform the following:
- 2) Go to Step 5.
- b. Verify AUX BLDG SW isolation b. Manually align valves.
valves - OPEN
- MOV-4615 and MOV-4734
- MOV-4616 and MOV-4735
SW DISCHARGE CCW HXs IN REQUIRED SW FLOW ALIGNMENT SERVICE Normal 2 Total of 5000 - 6000 gpm equally divided to both HXs Normal 1 5000 - 6000 gpm to in-service HX Alternate 2 30-33" d/p across each HX Alternate 1 95-100" d/p across in-service HX This Step continued on the next page.
ACTION/EXPECTED r pos RESPONSE NOT OBTAIN (Step 4 continued from previous page)
- e. Direct AO to adjust SW flow to e. IF the required SW flow can NOT required value be obtained, THEN perform the following:
"o IF on normal SW discharge:
- 1) Isolate SW to screenhouse and
"* V-4619. CCW HX A air conditioning headers.
"*MOV-4609/MOV-4780 - AT
-OR LEAST ONE CLOSED
"*MOV-4663/MOV-4733 - AT "o IF on alternate SW discharge: LEAST ONE CLOSED
"*V-4619C. CCW HX A 2) Direct AO to locally adjust
"*V-4620B, CCW HX B SW flow to required value.
"* SFP Hx A (V-4622) (for alternate SW discharge use V-4622A)
"* SFP Hx B (V-8689)
- 4) Verify SW portions of ATT-17.0. ATTACHMENT SD-1 are complete.
EOP: TITLE:
REV: 35 ES-I.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 6 of 22 SE ACION/XPETE REPNERSI SE TOTIE 5 Establish CCW flow to RHR Hxs:
- a. Check both CCW pumps RUNNING a. Perform the following:
- 1) Start CCW pumps as power supply permits (122 kw each).
- 2) IF both CCW pumps are running. THEN go to step 5b.
- 3) IF only one CCW pump is running. THEN perform the following:
a) Direct AO to isolate CCW to boric acid evaporator o Close V-760A b) Manually open CCW MOV to only one operable RHR loop.
"o Open MOV-738A
-OR "o Open MOV-738B c) Go to step 6.
- MOV-738A
- MOV-738B
EOP: TITLE:
REV: 35 ES-I.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 7 of 22 STEP ACioN/ExPETED RESONSEI RESPONSE NOT OBTAINDl CAUTION o THE RHR HX OUTLET VALVES (HCV-624 AND HCV-625) WILL FAIL OPEN ON LOSS OF INSTRUMENT AIR PRESSURE.
o CONSULT WITH RADIATION PROTECTION BEFORE DISPATCHING PERSONNEL TO AUXILIARY BUILDING. SWITCHOVER TO RECIRCULATION MAY CAUSE HIGH RADIATION LEVELS.
6 Check RHR Flow: Manually adjust RHR Hx outlet valves equally to reduce flow to o RHR flow - LESS THAN 1500 GPM less than 1500 gpm per operating PER OPERATING PUMP pump
"*RHR Hx A. HCV-625
"*RHR Hx B. HCV-624 IF flow can NOT be reduced manually. THEN dispatch an AO with locked valve key to locally adjust RHR Hx outlet valve handwheels equally to reduce flow.
- RHR Hx A. HCV-625 handwheel
- RHR Hx B. HCV-624 handwheel
EM: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 8 of 22 STP ATONEPCE RSOS ESOS O OBT INE 7 Check IF Unnecessary Pumps Can Be Stopped:
- a. Three SI pumps - RUNNING a. Go to Step 7c.
- b. Stop SI pump C and place both switches in PULL STOP
- c. Stop both RHR pumps and place in PULL STOP
- e. Pull stop one CNMT spray pump
- f. Check CNMT pressure - LESS THAN f. Go to Step 8.
28 PSIG.
- g. Place NaOH Tank outlet- valve switches to OPEN.
- AOV-836A
- AOV-836B
- h. Reset CNMT spray
- i. Close discharge valves for idle CNMT spray pump(s)
"o Pump A
- MOV-860A
- MOV-860B "o Pump B
"*MOV-860C
"*MOV-860D
EOP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 9 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 8 Verify RHR Systemn 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 e MOV-720
- MOV-721
- b. Verify RHR pump suction crosstie b. Manually open valves. If valves valves - OPEN can NOT be opened. THEN dispatch AG 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) e MOV-851A o MOV-851B
- d. Verify RCDT pump suction valves d. Manually close valves.
from sump B - CLOSED
- MOV-1813A
- MOV-1813B
EOP:
ES-1.3 TITE:I TRANSFER TO COLD LEG RECIRCULATION REV: 35 PAGE 10 of 22 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.
9 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 9b.
DC power key switch)
- b. Open both RHR suction valves
"o MOV-850A - OPEN 1) Initiate only one train of RHR recirculation (Refer to "o MOV-850B - OPEN ATT-14.3. ATTACHMENT RHR NPSH for further guidance).
- 2) Go to step 9e. I IF neither valve will open. THEN refer to ATT-14.6. ATTACHMENT RHR PRESS REDUCTION for further guidance.
- c. Check MOV-738A AND MOV-738B c. Perform the following:
BOTH OPEN
- 1) IF MOV-738A open. THEN start RHR Pump A and go to step 9e.
- 2) IF MOV-738B open. THEN start RiR Pump B and go to step 9e.
- d. Start both RHR pumps
RUNNING THEN go to ECA-1.1. LOSS OF EMERGENCY COOLANT RECIRCULATION.
Step 1.
EOP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 11 of 22 STEP =i ACINExPECTED~ o, REPOSERSPoNS NoT OBTAINEDI CAUTION SUMP RECIRCULATION FLOW TO RCS MUST BE MAINTAINED AT ALL TIMES. EXCEPT DURING ALIGNMENT FOR HIGH HEAD RECIRCULATION.
& *
- 4 * *
- A * * * * * * * * * * *** * * * & * * * * * * * * * *
- 4 * * *
- 4 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.
10 Check RWST Level - LESS THAN DO NOT continue with this procedure 15% until RWST level is less than 15%.
11 Stop All Pumps Supplied From 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 12.
28 PSIG
- e. Reset CNMT spray if necessary
- f. Close CNMT spray pump discharge valves
- MOV-860A
'MOV-860B
- MOV-860C
- MOV-860D
STEP ACTION/EXPECTED REPNERESPONSE 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.
12 Align SI And CNMT Spray For Sump Recirculation:
- 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 NOV-897 M
- d. Verify SI pump suction valves d. Ensure at least one valve open.
from RWST - OPEN
- MOV-825A
- MOV-825B
- e. Align operating RHR pump flow e. Ensure at least one flowpath path(s) to SI and CNMT spray aligned from RHR pump(s) to SI pump suction. and CS pump suction header (Refer to ATT-14.5. ATTACHMENT "o IF RHR Pump A operating, RHR SYSTEM).
FHEN open MOV-857A and MOV-857C IF neither flow path can be aligned. THEN refer to ATT-14.6.
"o IF RHR Pump B operating. ATTACHMENT RHR PRESS REDUCTION THEN open MOV-857B for further guidance.
EOP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 13 of 22 SE ACTION/EXPECTED RESPONSE REI SPONSE NOT OBTAINEDI 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.
13 Verify Adequate RCS Makeup Flow:
- 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 14.
"o Core exit T/Cs - LESS THAN REQUIREMENTS OF FIGURE RHR INJECTION "o Check RVLIS level (no RCPS)
GREATER THAN 52% [55% adverse CNMT]
EOP: TITLE: REV: 3 5 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 14 of 22
- STEPH ACTION/EXPECTED RESPONSEI RESPONSE NOT OBTAINEDI
- * * * . l a *
- a d* * *
- a a d* * * * *l
- a *
- a a,
- a * *
- al * * * *I *
- a a CAUTION IF A CNMT SPRAY PUMP IS STARTED. THEN CNMT PRESSURE SHOULD BE CLOSELY MONITORED. CNMT PRESSURE SHOULD NOT BE REDUCED TO LESS THAN 22 PSIG.
- *
- a * * * * *
- a a * * * * * * * * * * *
- a
- a
- a * * *
- a *
- a
- a * *
- 14 Check If CNMT Spray Is Required:
- a. CNMT pressure - GREATER THAN a. Perform the following:
28 PSIG
- 1) 1F CNMT spray previously actuated and NaOH tank level greater than 55%. THEN consult TSC to determine if CNMT spray should be restarted.
- 2) Go to Step 15.
- 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 15. WHEN a CNMT spray pump can be started.
THEN do steps 14d. 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.
This Step continued on the next page.
EOP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 15 of 22 STEP 1 ACTION/EXPECTED frEo pPiOS N TIN (Step 14 continued from previous page)
- e. Verify NaOH flow (FI-930) e. IF NaOH flow NOT indicated. THEN place switches for NaOH tank outlet valves to OPEN.
- AOV-836A
- AOV-836B
- f. WHEN CNMT pressure decreases to 22 psig, THEN perform the following:
- 1) Reset CNMT spray
- 2) Check NaOH tank outlet valves 2) Place NaOH tank outlet valve
- CLOSED controllers to MANUAL and close valves.
- AOV-836A
- AOV-836B
- 3) Stop CNMT spray pumps and place in PULL STOP
- 4) Close CNMT spray pump discharge valves
"*MOV-860A
"* MOV-860B
"*MOV-860C
"*MOV-860D 15 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 52% [55% adverse CNMT] THEN start one additional SI pump.
EOP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 16 of 22 S STEPH ACTION/EXPECTED RSPONSE RESPONSE NOT OBTAINED
"*16 Monitor Indications Of CNMT Perform the following:
Sump B Blockage
- a. Stop all but one RHR pump o Check running RHR Pump motor current - STABLE b. Reduce RHR flow as low as possible but NOT less than
o Check running R pump dischargeI c. Contact the TSC for additional flows - STABLE I guidance.
NOTE: TDAFW pump flow control AOVs may drift open on loss of IA.
- 17 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%
adverse CNMT] in at least one SIG.
- b. Control feed flow to maintain narrow range level between 17%
[25% adverse CNMT] and 50%
ES-O . 3 TRANSFER TO COLD LEG RECIRCULATION REV: 35 EOP: TILE:
PAGE 17 of 22 STE =o, ACIO/EPETE RESPONSE. iESPoNS NOT OBTAINE 18 Establish Normal Shutdown Alignment:
- a. Check condenser - AVAILABLE a. Dispatch AO to perform ATT-17.1.
ATTACHMENT SD-2.
- b. Perform the following:
"o Open generator disconnects
"*lG13A71
"*9X13A73 "o Place voltage regulator to OFF "o Open turbine drain valves "o Rotate reheater steam supply controller cam 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) Manually start one fan as
- 1) Verify at least one control rod shroud fan - RUNNING power supply 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 ATT-l7.0. ATTACHMENT SD-i
- COMPLETE I
EOP:
ES-1.3 I
TIRLE:
TRANSFER TO COLD LEG RECIRCULATION REV: 35 PAGE 18 of 22
- STEPH ACTION/EXPECTE RESPONSEI RESPONSE NOT OBTAINED 19 Check If 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.l. 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 ATT-8.1. ATTACHMENT D/G STOP)
K>
EIP: TILE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 19 of 22 STP CION/EXPECTED RESPONSEI RESPONSE NOT OBTAINED 20 Check If SI ACCUMs Should Be Isolated:
- a. Both RCS hot leg temperatures a. Continue with Step 21. WHEN LESS THAN 400°F both RCS hot leg temperatures less than 4000F. THEN do Steps 20b 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
EOP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 20 of 22 CAUTION IF FUEL DAMAGE IS SUSPECTED. MAINTAIN SIG PRESSURE SLIGHTLY GREATER THAN RCS PRESSURE.
21 Check If Intact S/Gs Should Be Depressurized To RCS Pressure:
- a. RCS pressure - LESS THAN INTACT a. Go to Step 22.
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.
22 Consult TSC to Determine If Rx Vessel Head Should Be Vented
EOP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 21 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED!
NOTE: This procedure should be continued while obtaining CNMT hydrogen sample in Step 23.
23 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.
24 Check Event Duration - Consult TSC to evaluate long term GREATER THAN 19 HOURS AFTER plant status.
EVENT INITIATION 25 Secure CNMT Spray
- a. Reset CNMT spray
- b. Place NaOH Tank outlet valve switches in AUTO
"*AOV-836A
"* AOV-836B
- c. Place CNMT spray pumps in PULL STOP
- d. Close discharge valves for idle CNMT spray pumps "o Pump A
"*MOV-860A
"*MOV-860B "o Pump B o MOV-860C o MOV-860D
EOP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 22 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED3 26 Verify Two SI Pumps - RUNNING Manually start pumps.
27 Check Core Exit T/Cs - LESS Perform the following:
THAN REQUIREMENTS OF FIGURE 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.
28 Consult TSC To Evaluate Long Term Plant Status
-END-
EOP: TIRLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of I ES-1.3 APPENDIX LIST TITLE
- 1) RED PATH
SUMMARY
- 2) FIGURE RHR INJECTION (FIG-5.0)
- 3) FIGURE MIN SUBCOOLING (FIG-i .0)
- 4) ATTACHMENT D/G STOP (ATT-8.1)
- 5) ATTACHMENT SD-I (ATT-17.,)
- 6) ATTACHMENT SD-2 (ATT-17.i)
- 9) ATTACHMENT MIN SW (ATT-2.1)
- 10) ATTACHMENT RHR PRESS REDUCTION (ATT-14.6)
- 11) ATTACHMENT LOSS OF OFFSITE POWER (ATT-8.5)
- 12) FOLDOUT
ECIP: TITLE:
REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION S~PAGE 1 of 1 RED PATH
SUMMARY
- a. SUBCRITICALITY - Nuclear power greater than 5%
- b. CORE COOLING - Core exit T/Cs greater than 12000F
-OR Core exit T/Cs greater than 7000F AND RVLIS level (no RCPs) less than 52% [55%
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 1000F in last 60 minutes AND RCS cold leg temperature less than 285°F
- e. CONTAINMENT - CNMT pressure greater than 60 psig
FOLDOUT PAGE
- 1. ECA-1.1 TRANSITION CRITERIA IF emergency coolant recirculation is established and subsequently lost, THEN go to ECA-I.1, LOSS OF EMERGENCY COOLANT RECIRCULATION, Step 1.