ML17262A891

Rev 14 to EOP ES-1.3, Transfer to Cold Leg Recirculation.

ML17262A891
Person / Time
Site:	Ginna
Issue date:	05/06/1992
From:	ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17262A884	List: ML17262A883 ML17262A885 ML17262A886 ML17262A887 ML17262A888 ML17262A889 ML17262A890 ML17262A891 ML17262A892 ML17262A893 ML17262A895 ML17262A896 ML17262A897 ML17309A489
References
ES-1.3, NUDOCS 9206160402
Download: ML17262A891 (44)

Text

EOP:

REV: 14 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of 18 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE PLANT SUPERINTENDENT E FEC IVE DATE CATEGORY 1.0 REVIEWED BY:

920bfb0402 92050b PDR ADOCK 05000244 p PDR

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EOP: LITLE:

REV 14 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 2 of 18 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,

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, ll

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).

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TITLE:

EOP:

REV'4 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 3 of 18 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION o INJECTION FLOW TO THE RCS MUST 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 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+O5 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 8 should be performed without delay. FR procedures should not be implemented prior to completion of these steps.

2 Reset SI

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EOP:

REV: 14 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 4 of 18 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 3 Establish SW System Alignment For RHR Sump B Recirculation:

a. Veri'fy at least two SW pumps a. Start additional SW pumps as RUNNING power supply permits (258 kw each)

IF D/Gs supplying emergency AC busses, THEN shed non-essential loads as necessary

~ Rx compartment cooling fans

~ Control rod shroud fans

~ PRZR heaters

~ Charging pumps

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 adjust 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.

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TITLE:

EOP:

REV'4 ES-1-3 TRANSFER TO COLD LEG RECIRCULATION PAGE 5 of 18 STEP ACTION/EXPECTED RESPONSE .RESPONSE NOT OBTAINED 4 Establish CCW 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 CAUTION CONSULT WITH HEALTH PHYSICS BEFORE DISPATCHING PERSONNEL TO AUXILIARY BUILDING.

5 Check RHR Flow: Manually adjust RHR Hx outlet valves equally to reduce flow to o Both RHR pumps - RUNNING less than <SP-L.10) per operating pump.

o RHR flow (FI-626) - LESS THAN

<SP-L.10)'ER OPERATING PUMP ~ HCV-624 B RHR Hx

~ HCV-625 A RHR Hx IF flow can NOT be reduced manually, THEN dispatch an AO to locally adjust RHR Hx outlet manual valves equally to reduce flow.

~ V-715 B RHR Hx

~ V-717 A RHR Hx

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EOP: T!TLE:

REV 14 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 6 of 18 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 ZF 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

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EOP:

REV 14 ES-1.3 T~SFER TO COLD LEG RECIRCULATION PAGE 7 of 18 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

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EOP: TITLE:

REV: 14 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 8 of 18 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 1.

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%.

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EOP:

REV 14 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 9 of 18 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 10 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 11.

28 PSIG

e. Reset CNMT spray if necessary

f. Close CNMT spray pump discharge valves

~ MOV-860A

~ MOV-860B

~ MOV-860C

~ MOV-860D

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EOP: TITLE:

REV 14 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 10 of 18 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

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 SI and CNMT aligned to SI and CS pump spray pump suction suction header (Refer to Attachment RHR SYSTEM).

~ MOV-857A

~ MOV-857B

~ MOV-857C

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EOP: TITLE:

REV: 14 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 11 of 18 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION SI PUMPS SHOULD BE STOPPED IF RCS PRESSURE IS GREATER THAN THEIR SHUTOFF HEAD PRESSURE.

NOTE: SI pump C is preferred since it delivers to both lines.

12 Verify Adequate RHR Injection: Start one SI pump.

Core exit T/Cs - LESS THAN REQUIREMENTS OF FIGURE RHR INJECTION o RCS pressure - LESS THAN 225 psig [425 psig adverse CNMT]

o Check RVLIS level (no RCPS)

GREATER THAN 43% [46% adverse CNMT]

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EOP: TITLE:

REV 14 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 12 of 18 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION IF A CNMT SPRAY PUMP IS STARTED, THEN CNMT PRESSURE SHOULD BE CLOSELY MONI'ADORED. CNMT PRESSURE SHOULD NOT BE REDUCED TO LESS THAN 32 PSIG.

13 Check Required:

If CNMT Spray Is

a. CNMT pressure - GREATER THAN a. Perform the following:

37 PSIG redetermine

1) IF CNMT spray previously actuated, THEN consult TSC to should be if spray CNMT restarted.

2) Go to Step 14.

b. Verify open CNMT spray pump b. Manually open valve(s) for discharge valves selected pump.

~ MOV-860A ~ MOV-860A or MOV-860B, A pump

~ MOV-860B ~ MOV-860C or MOV-860D, B pump

~ MOV-860C

~ MOV-860D

c. Start selected CNMT spray pump

d. Open NaOH tank outlet valves for running pump

~ AOV-836A, pump A

~ AOV-836B, pump B

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

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EOP: 71TLE:

REV 14 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 13 of 18 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 Check 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 AS/G.

b. Control feed flow to maintain narrow range level between 17%

[25% adverse CNMT] and 50%

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EOP: TITLE:

REV 14 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 14 of 18 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 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) 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:

REV: 14 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 15 of 18 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 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)

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EOP:

REV'4 ES-1 ' TRANSFER TO COLD LEG RECIRCULATION PAGE 16 of 18 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 18 Check Isolated:

If SI ACCUMs Should Be

a. Both RCS hot leg temperatures a. Continue with Step 19. WHEN LESS THAN 4004F 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

l EOP: TITLE:

REV: 14 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 17 of 18 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 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' 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 NOTE: The TSC should be consulted before changing recirculation lineups.

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

EVENT INITIATION 22 Place CNMT Spray Pumps In PULL STOP

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EOP:

REV: 14 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 18 of 18 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 23 Verify Two SI Pumps RUNNING Manually start pumps.

24 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.

25 Consult TSC To Evaluate Long Term Plant Status

-END-

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EOP:

REV 14 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) ATTACHMENT D/G STOP

4) ATTACHMENT SD-1

5) ATTACHMENT SD-2

6) ATTACHMENT RHR NPSH

7) ATTACHMENT RHR SYSTEM

8) ATTACHMENT AUX BLDG SW

9) FOLDOUT

l~r EOP:

REV: 14 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of 1 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 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

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EOP: TITLE:

REV 14 ES-F 3 TRANSFER TO COLD LEG RECIRCULATION PAGE 1 of 1 FIGURE RHR INJECTION CORE EXIT TEMPERATURE ( F) 600 TEMPERATURE INCREMENTS 10'F 550 500 450 400 INITIATE HIGH HEAD INJECTION 350 300 250 RHR INJECTION ADEQUATE CNMT PRESSURE INCREMENTS 1 PSIG 200 10 20 30 40 50 60 CONTAINMENT PRESSURE (PSIG)

EOP:

REV: 14 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 43~ [46% 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).