ML17263A204

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Rev 15 to EOP ES-1.3, Transfer to Cold Leg Recirculation.
ML17263A204
Person / Time
Site: Ginna Constellation icon.png
Issue date: 03/24/1993
From: Marlow T
ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17263A191 List:
References
ES-1.3, NUDOCS 9304080168
Download: ML17263A204 (46)
v • d • e


Text

EOP: TITLE REV 15 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of 19 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVI DATE 9 +f PLANT SUPER N E DENT

.EFFECTIVE DATE CATEGORY 1'0 REVIEWED BY:

PDR P ';PDR

'9304080ih8 930330 ADOCK 05000244

/'

EOP:

REV: 15 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 2 of 19 A. PURPOSE - This procedure provides the necessary instructions for tiansferring 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,
b. ECA-0.2, LOSS OF ALL AC POWER WITH SI REQUIRED; 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.1, 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).

EOP: TITLE REV: 15 ES-1 ' TRANSFER TO COZEN) LEG RECIRCULATION PAGE 3 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

  • * * * * * * * * * * * * * * * * * * *
  • 4 *****************

CD~ON 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 VILL BE REQUIRED TO RESTART SAFEGUARDS EQUIPMENT.

o CONSULT WITH HEALTH PHYSICS BEFORE DISPATCHING PERSONNEL TO AUXILIARY BUILDING.

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- ~ 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 l.

NOTE: Steps 2'hrough 11 should be performed without delay. FR procedures should not be implemented prior to completion of these steps.

2 Reset SI

ElP:

REV 15 ES-1.3 TRANSFER To COLD LEG RECIRCULATION PAGE 4 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: IF D/Gs supplying emergency AC busses, THEN non-essential loads may be shed as necessary to allow start of additional SW pumps, 3 Establish Adequate SW Flov:

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 operable, ~Eg 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

c. Dispatch AO to verify total SW c. Perform the following:

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 ad]ust total SW flow to the CCW Hxs to between 5000 gpm and 6000 gpm (V-4619 and V-4620).
3) Direct AO to locally isolate SW return from SFP Hxs:

~ SFP Hx A (V-4622)

~ SFP Hx B (V-8689)

4) Verify SW portions of Attachment SD-1 are complete.

EOP: T1TLE:

REV: 15 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 5 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 4 Establish CCR flow to RHR Hxs:

a. Check both CCW pumps - RUNNING a. Start CCW pumps as power supply permits (124 kw each).
b. Manually open CCW valves to RHR b. Dispatch AO to locally open Hxs .valves.

~ MOV-738A

~ MOV-738B

  • * * * * * * * * * * * * * * * * * * * * * * * * * *
  • 4' ***********

CAUTION o CONSULT WITH HEALTH PHYSICS BEFORE DISPATCHING PERSONNEL TO AUXILIARY BUILDING.

o THE RHR HX OUTLET VALVES (HCV-624 AND HCV-625) WILL FAIL OPEN ON LOSS OF INSTRUMENT AIR PRESSURE.

5 Check RHR Flow: 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 flow can NOT be reduced manually, THEN dispatch an AO to locally adjust RHR Hx outlet manual valves equally to reduce flow.

~ RHRHx B, V-715

~ RHR Hx A, V-717

EOP T1TLE:

REV: 15 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 6 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

  • * * * * * * * * * * * * 'k * * * * * * * * * * * * * * * * * * * * * * * * * *
  • CAUTION ANY PUMPS TAKING SUCTION FROM RWST SHOULD BE STOPPED UPON REACHING RWST LO-LO LEVEL ALARM.

6 Check IF 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

c. Both CNMT spray pumps - RUNNING c. Pull stop any idle CNMT spray pump and go to Step 6e.
d. Pull stop one CNMT spray pump
e. Stop both RHR pumps and place in PULL STOP

I EOP TlTLE:

REV: 15 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 - CU)SED

~ MOV-1813A

~ MOV-1813B

EOP: TITLE:

REV 15 ES-1.3 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 two RHR pump suction paths from sump B (outside CNMT) from sump B can NOT be established, THEN perform the o MOV-850A - OPEN following:

o MOV-850B - OPEN 1) Initiate only one train of RHR recirculation (Refer to Attachment RHR NPSH for further guidance).

2) Go to Step 9.
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 l.

f 'I II EOP: TITLE:

REV 15 ES-1. 3 TRANSFER TO COLD LEG RECIRCULATION PAGE 9 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED I

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 Supplied 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 E

il ~

EOP: TITLE:

REV: 15 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 10 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 11 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 b, Close and verify closed RWST b. Ensure at least one valve closed.

outlet valves to SI and CNMT spray pumps (turn on DC power key switches)

~ MOV-896A

~ MOV-896B W

c. Close and verify closed SI pump c. Ensure at least one valve closed.

RECIRC valves

~ 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. Open and verify open RHR Hx e. Ensure at least one RHR pump(s) outlet valves to Sl'nd CNMT aligned to SI and CS pump spray pump suction suction header (Refer to Attachment RHR SYSTEM).

~ MOV-857A

~ MOV~857B

~ MOV.'-. 857 C

EOP: TITLE:

REV 15 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 Adequate RCS Makeup Flow:

a. RCS pressure - LESS THAN a. Perform the following:

225 psig [425 psig adverse CNMT]

1) Check RCS conitions:

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.
b. RHR injection flow adequate:  !
b. Start one SI pump.

o Core exit T/Cs - LESS THAN REQUIREMENTS OF FIGURE RHR INJECTION o Check RVLIS level (no RCPS)

GREATER THAN 43% [46% adverse

. CNMTJ

EOP:

REV 15 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 Check If Required:

CNMT Spray 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 if CNMT spray should be restarted.
2) Go to Step 14.
b. Verify open CNMT spray pump b. Manually open valve(s) for discharge valves 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
d. Open NaOH tank outlet valves for running pump

~ CS pump A, AOV-836A

~ CS pump B, AOV-836B

e. WHEN CNMT pressure decreases to 32 psig, THEN PUJL STOP CNMT spray pump

EOP:

REV'5 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 13 of 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 5S [25% adverse CNMT] than 200 gpm until narrow range level greater than 58 [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:

REV: 15 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) Check IA to CNMT - AVAILABLE 1) Go, to Step 16d.
2) Verify at least one control 2),Manually start one fan as rod shroud fan - RUNNING power supply permits (45 kw)
3) Verify one Rx compartment 3) 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

EOP: TITLE:

REV 15 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 15 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 17 Check If Emergency Should Be Stopped:

D/Gs

a. Verify AC emergency busses a. Try to restore of fsite 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 Attachment D/G STOP)

i EOP:

REV'5 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 16 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

.18 Check If SI Isolated:,

ACCUMs Should Be

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.
b. 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

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 7 1TLE:

REV 15 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 17 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

  • * * * * * * *
  • Q * * * * * * * * * * * * * .4' ****************

CAUTION IF FUEL DAMAGE IS SUSPECTED, MAINTAIN S/G PRESSURE SLIGHTLY GREATER THAN RCS PRESSURE.

  • 19 Check Be If Intact Depressurized To S/Gs Should RCS Pressure:
a. RCS pressure - LESS THAN INTACT a. Go to Step 20.

S/G PRESSURES

b. Check S/G radiation - NORMAL b. Do NOT dump steam from a S/G with high radiation. Isolate o Steamline Monitors (R-31, feed flow to a S/G with high R-32) radiation.

o Direct HP to sample S/Gs for activity

c. Dump steam to condenser from c. 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 Rx Vessel Head Should Be If Vented

'I EOP: T1TLE2 REV: 15 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:

a. Direct 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.

NOTE: The TSC should be consulted before changing recirculation lineups.

22 Check Event Duration Consult TSC to evaluate long term GREATER THAN 19 HOURS AFTER plant status.

EVENT INITIATION 23 Place CNMT Spray Pumps In PULL STOP 24 Verify Two SI Pumps RUNNING Manually start pumps.

25 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.

EOP:

REV: 15 ES-1 3 TRANSFER TO COLD LEG RECIRCULATION PAGE 19 of 19 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 26 Consult,TSC To Evaluate Long Term Plant Status

-END-

EOP:

REV 15 ES-1.3 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
7) ATTACHMENT RHR NPSH
8) ATTACHMENT RHR SYSTEM
9) ATTACHMENT AUX BLDG SW
10) ATTACHMENT SW LOADS IN CNMT I ll) ATTACHMENT MIN SW I
12) FOLDOUT

,r REV: 15 ES-1. 3 TRANSFER TO COLD LEG RECIRCULATION 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 54

[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

'C I~

EOP: TITLE:

REV: 15 "

ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of 1 FIGURE RHR INJECTION CORE EXIT TEMPERATURE ('F) 600 TEMPERATURE INCREHENTS 10'F 550 500 450 400 INITIATE HIGH HEAD INJECTION 350 300 250 RHR INJECTION ADEQUATE CNNT PRESSURE INCREMENTS I PSIG 200

=

10 20 30 40 50 60 CONTAINMENT PRESSURE (PSIG)

EOP:

REV'5 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of 1 FOLDOUT PAGE

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

o Core exit TCs GREATER THAN REQUIREMENTS OF FIGURE RHR INJECTION OR o RVLIS level LESS THAN 434 [464 adverse CNMT]

2. 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).

,t

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