ML030030423

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Emergency Operating Procedures
ML030030423
Person / Time
Site: Ginna Constellation icon.png
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)
v • d • e


Text

R A

Subsidiary of RGS Energy Group, Inc.

ROCHESTER GAS AND ELECTRIC CORPORATION ° 89 EAST AVENUE, ROCHESTER, N.Y. 14649.0001 - 716-771-3250 www.rge.com 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):

ES Index ES-1.3, Rev 35

REPORT NO.

01 REPORT: NPSP0200 DOC TYPE: PRES PARAMETERS: DOC TYPE*

PROCEDURE NUMBER ES-O.0 ES-0.1 ES-0.2 ES-0.3 ES-1.1 ES-1.2 ES-i. 3 ES-3.1 ES-3.2 ES-3.3 S -

PRER GINNA NUCLEAR POWER PLANT PROCEDURES INDEX EQUIPMENT SUB-PROCEDURE PRES PRPT

(

STATUS: EF QU 5 YEARS PROCEDURE TITLE REDIAGNOSIS REACTOR TRIP RESPONSE NATURAL CIRCULATION COOLDOWN NATURAL CIRCULATION COOLDOWN WITH STEAM VOID IN VESSEL SI TERMINATION POST LOCk COOLDOWN AND DEPRESSURIZATION TRANSFER TO COLD LEG RECIRCULATION POST-SGTR COOLDOWN USING BACKFILL POST-SGTR COOLDOWN USING SLOWDOWN POST-SGTR COOLDOWN USING STEAM DUMP REV 010 020 012 008 023 024 035 014 015 015 12/19/02 PAGE:

3 ONLY:

EFFECT DATE 05/01/98 07/25/02 05/01/98 05/01/98 08/13/02 07/25/02 12/19/02 07/25/02 07/25/02 07/25/02 LAST REVIEW 05/01/98 05/01/98 05/01/98 05/01/98 05/01/98 05/01/98 05/01/98 05/01/98 05/01/98 05/01/98 NEXT REVIEW 05/01/03 05/01/03 05/01/03 05/01/03 05/01/03 05/01/03 05/01/03 05/01/03 05/01/03 05/01/03 ST EF EF EF EF EF EF EF EF EF 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,

b.

ECA-0.2, LOSS OF ALL AC POWER RECOVERY WITH SI

REQUIRED, 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 THAN 15%

2 Verify CNMT Sump B Level -

AT LEAST 113 INCHES IF sump recirculation NOT in 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.

IF RWST level is less than 28% AND 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 RUNNING
b. Verify AUX BLDG SW isolation valves -

OPEN

a. Start additional SW pumps as power supply permits (257 kw each).

IF only 1 SW pump operable, THEN perform the following:

1) Ensure SW aligned to one CCW Hx per ATT-2.1.

ATTACHMENT MIN SW.

2)

Go to Step 5.

b. Manually align valves.
  • MOV-4615 and MOV-4734
  • MOV-4616 and MOV-4735
c. Dispatch AO to Check BOTH CCW Hxs - IN SERVICE
d. Determine required CCW HXs per table:
c. Locally place BOTH CCW Hxs in service SW flow to This Step continued on the next page.

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

ACTION/EXPECTED r pos RESPONSE NOT OBTAIN (Step 4 continued from previous page)

  • e. Direct AO to adjust SW flow to required value "o IF on normal SW discharge:

"* V-4619.

CCW HX A

"* V-4620.

CCW HX B

-OR "o IF on alternate SW discharge:

"* V-4619C.

CCW HX A

"* V-4620B, CCW HX B

e. IF the required SW flow can NOT be obtained, THEN perform the following:
1) Isolate SW to screenhouse and air conditioning headers.

"* MOV-4609/MOV-4780 LEAST ONE CLOSED

"* MOV-4663/MOV-4733 LEAST ONE CLOSED

- AT

- AT

2) Direct AO to locally adjust SW flow to required value.
3) Direct AO to locally isolate SW return from SFP Hxs:

"* 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
b. Open CCW valves to RHR Hxs
  • MOV-738A
  • MOV-738B
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.

b. Dispatch AO to locally open valves.

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:

o RHR flow - LESS THAN 1500 GPM PER OPERATING PUMP Manually adjust RHR Hx outlet valves equally to reduce flow to less than 1500 gpm per operating 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
b. Stop SI pump C and place both switches in PULL STOP
c. Stop both RHR pumps and place in PULL STOP
d. Both CNMT spray pumps - RUNNING
e. Pull stop one CNMT spray pump
f.

Check CNMT pressure - LESS THAN 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

a. Go to Step 7c.
d. Pull stop any idle CNMT spray pump and go to Step 7f.
f.

Go to Step 8.

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 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 valves - OPEN

"* MOV-704A

"* MOV-704B

c. Verify the following valves OPEN
a. Ensure at least one suction valve and one discharge valve closed.
b. Manually open valves.

If valves can NOT be opened. THEN dispatch AG to locally open valves.

c. Ensure at least one valve in 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 from sump B - CLOSED
d. Manually close valves.
  • MOV-1813A
  • MOV-1813B

EOP:

TITE:I REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 10 of 22 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION RHR FLOW INDICATED ON FI-626 SHOULD BE TO ENSURE OPTIMUM PUMP PERFORMANCE.

LIMITED TO 1500 GPM PER OPERATING PUMP 9 Initiate RHR Sump Recirculation:

a. Close RWST outlet valve to RHR pump suction. MOV-856 (turn on DC power key switch)
b. Open both RHR suction valves from sump B (outside CNMT)

"o MOV-850A - OPEN "o MOV-850B - OPEN

c. Check MOV-738A AND MOV-738B BOTH OPEN
a. Dispatch AO to locally close valve and continue with Step 9b.
b. IF only one valve will open, THEN perform the following:
1) Initiate only one train of RHR recirculation (Refer to ATT-14.3.

ATTACHMENT RHR NPSH for further guidance).

2)

Go to step 9e.

IF neither valve will open. THEN refer to ATT-14.6.

ATTACHMENT RHR PRESS REDUCTION for further guidance.

c. Perform the following:
1) IF MOV-738A open. THEN start RHR Pump A and go to step 9e.
2)

IF MOV-738B open.

RiR Pump B and go THEN start to step 9e.

d. Start both RHR pumps
e. Verify at least one RHR pump RUNNING
e. IF no RHR pump can be started.

THEN go to ECA-1.1.

LOSS OF EMERGENCY COOLANT RECIRCULATION.

Step 1.

I

EOP:

TITLE:

REV: 35 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION PAGE 11 of 22 STEP

=i ACINExPECTED~ o, REPOSERSPoNS N oT 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 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 28 PSIG
e. Reset CNMT spray if necessary
f. Close CNMT spray pump discharge valves
  • MOV-860A MOV-860B
  • MOV-860C
  • MOV-860D DO NOT continue with this procedure until RWST level is less than 15%.
d.

Go to Step 12.

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 from BASTs - CLOSED
a. Ensure at least one valve in each flowpath closed.
  • MOV-826A and MOV-826B
  • MOV-826C and MOV-826D
b. Close RWST outlet valves to SI and CNMT spray pumps (turn on DC power key switches)
b. Ensure at least one valve closed.
  • MOV-896A
  • MOV-896B
c. Close SI pump RECIRC valves
c. Ensure at least one valve closed.
  • MOV-898 M

NOV-897

d. Verify SI pump suction valves from RWST -

OPEN

d. Ensure at least one valve open.
  • MOV-825A
  • MOV-825B
e. Align operating RHR pump flow path(s) to SI and CNMT spray pump suction.

"o IF RHR Pump A operating, FHEN open MOV-857A and MOV-857C "o IF RHR Pump B operating.

THEN open MOV-857B

e. Ensure at least one flowpath aligned from RHR pump(s) to SI and CS pump suction header (Refer to ATT-14.5. ATTACHMENT RHR SYSTEM).

IF neither flow path can be aligned. THEN refer to ATT-14.6.

ATTACHMENT RHR PRESS REDUCTION 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 225 psig [425 psig adverse CNMT]
b. RHR injection flow adequate:

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

GREATER THAN 52% [55% adverse CNMT]

a. Perform the following:
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.
b. Start one SI pump.

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 28 PSIG
a. Perform the following:
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 valves - OPEN
  • MOV-860A
  • MOV-860B
  • MOV-860C
  • MOV-860D
c. Start selected CNMT spray pump
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.
b. Manually open valve(s) selected pump.

for

"* CS pump A. MOV-860A or MOV-860B

"* CS pump B. MOV-860C or MOV-860D

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.

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 CLOSED
  • 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:

"o Core exit T/Cs -

STABLE OR DECREASING "o RVLIS level (no RCPs)

- STABLE OR INCREASING "o RVLIS level (no RCPs)

- GREATER THAN 52% [55% adverse CNMT]

2) Place NaOH tank outlet valve controllers to MANUAL and close valves.

IF both RHR pumps running. THEN ensure two SI pumps running.

IF only one RHR pump running. THEN perform the following:

a. Ensure one SI pump running.
b. WHEN CNMT spray pumps stopped.

THEN start one additional SI pump.

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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 Sump B Blockage o

Check running RHR Pump motor current -

STABLE

Check running R pump dischargeI flows -

STABLE I

Perform the following:

a. Stop all but one RHR pump
b. Reduce RHR flow as low as possible but NOT less than requirements of FIG-6.0. FIGURE MIN RCS INJECTION.
c. Contact the TSC for additional 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 THAN 5% [25% adverse CNMT]

a. Maintain total feed flow greater than 200 gpm until narrow range level greater than 5% [25%

adverse CNMT] in at least one SIG.

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

[25% adverse CNMT] and 50%

EOP:

TILE:

REV: 35 ES-O. 3 TRANSFER TO COLD LEG RECIRCULATION PAGE 17 of 22 STE ACIO/EPETE

=o, RESPONSE.

iESPoNS NOT OBTAINE 18 Establish Normal Shutdown Alignment:

a. Check condenser - AVAILABLE
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) Verify at least one control rod shroud fan - RUNNING
2) Verify one Rx compartment cooling fan - RUNNING
a. Dispatch AO to perform ATT-17.1.

ATTACHMENT SD-2.

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

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

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

d. Verify ATT-l7.0. ATTACHMENT SD-i

- COMPLETE I

EOP:

TIRLE: I REV: 3 5 ES-1.3 TRANSFER TO COLD LEG RECIRCULATION 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 energized by 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)

a. Try to restore offsite power (Refer to ER-ELEC.l.

RESTORATION OF OFFSITE POWER).

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 LESS THAN 400°F
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
  • ACCUM A. MOV-841
  • ACCUM B. MOV-865
a. Continue with Step 21.

WHEN both RCS hot leg temperatures less than 4000F. THEN do Steps 20b through d.

c. Vent any unisolated ACCUMs:
1) Open vent valves for 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 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 ACCEPTABLE
e. Dump steam to condenser from intact S/G(s) until S/G pressure less than RCS pressure 22 Consult TSC to Determine If Rx Vessel Head Should Be Vented
a. Go to Step 22.
d.

Do NOT dump steam from a S/G with an unacceptable dose projection.

e. IF steam dump to condenser NOT available, THEN dump steam using intact S/G ARVs until S/G pressure less than RCS pressure.

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:

a. Direct RP 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.

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 OBTAINED 3 26 Verify Two SI Pumps -

RUNNING 27 Check Core Exit T/Cs -

LESS THAN REQUIREMENTS OF FIGURE RHR INJECTION Manually start pumps.

Perform the following:

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)

FIGURE MIN ATTACHMENT ATTACHMENT ATTACHMENT ATTACHMENT ATTACHMENT ATTACHMENT ATTACHMENT ATTACHMENT FOLDOUT SUBCOOLING (FIG-i.0)

D/G STOP (ATT-8.1)

SD-I (ATT-17.,)

SD-2 (ATT-17.i)

RHR NPSH (ATT-14.3)

RHR SYSTEM (ATT-14.5)

MIN SW (ATT-2.1)

RHR PRESS REDUCTION (ATT-14.6)

LOSS OF OFFSITE POWER (ATT-8.5)

3)
4)
5)
6)
7) r8)
9)
10)
11) 12)

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.
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).

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