ML033240029
| ML033240029 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 11/06/2003 |
| From: | Widay J Rochester Gas & Electric Corp |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML033240029 (27) | |
Text
Always at Your Service Joseph A. Widay Vice President and Plant Manager November 6, 2003 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555
Subject:
Emergency Operating Procedures R.E. Ginna Nuclear Power Plant Docket No. 50-244 As requested, enclosed are Ginna Station Emergency Operating Procedures.
Very truly yours, sep A. WidayI 9
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):
FR Index FR-P. 1, Rev 27 AA 7-1-%...?
An equal opportunity employer 89 East Avenue I Rochester, NY 14649 tel (585) 546-2700 www.rge.com An Energy East Company
NPSP0200 Ginna Nuclear Power Plant Thu 11/6/2003 10:27:37 am WRIGHTJ PROCEDURE INDEX Page 1 of 1 INPUT PARAMETERS: TYPE:
PRFR STATUS VALUE(S):
EF, OU 5 YEARS ONLY:
PRFR FUNCTIONAL RESTORATION GUIDELINE PROC PROCEDURE EFFECT LAST NEXT NUMBER PROCEDURE TITLE REV DATE REVIEW REVIEW ST FR-C.1 RESPONSE TO INADEQUATE CORE COOLING 020 05/30/2003 03/24/2003 03/24/2008 EF FR-C.2 RESPONSE TO DEGRADED CORE COOLING 017 05/30/2003 03/24/2003 03/24/2008 EF FR-C.3 RESPONSE TO SATURATED CORE COOLING 009 05/30/2003 03/24/2003 03/24/2008 EF FR-H.1 RESPONSE TO LOSS OF SECONDARY HEAT SINK 030 10/10/2003 03/24/2003 03/24/2008 EF FR-H.2 RESPONSE TO STEAM GENERATOR OVERPRESSURE 006 10/10/2003 03/24/2003 03/24/2008 EF FR-H.3 RESPONSE TO STEAM GENERATOR HIGH LEVEL 007 10/10/2003 03/24/2003 03/24/2008 EF FR-H.4 RESPONSE TO LOSS OF NORMAL STEAM RELEASE CAPABILITIES 005 05/30/2003 03/24/2003 03/24/2008 EF FR-H.5 RESPONSE TO STEAM GENERATOR LOW LEVEL 009 05/30/2003 03/24/2003 03/24/2008 EF FR-1.1 RESPONSE TO HIGH PRESSURIZER LEVEL 016 05/30/2003 03/24/2003 03/24/2008 EF FR-1.2 RESPONSE TO LOW PRESSURIZER LEVEL 011 05/30/2003 03/24/2003 03/24/2008 EF FR-1.3 RESPONSE TO VOIDS IN REACTOR VESSEL 018 05/30/2003 03/24/2003 03/24/2008 EF FR-P.1 RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDmON 027 11/06/2003 03/24/2003 03/24/2008 EF FR-P.2 RESPONSE TO ANTICIPATED PRESSURIZED THERMAL SHOCK CONDmON 008 05/30/2003 03/24/2003 03/24/2008 EF FR-S.1 RESPONSE TO REACTOR RESTART/ATWS 016 10/10/2003 03/24/2003 03/24/2008 EF FR-S.2 RESPONSE TO LOSS OF CORE SHUTDOWN 009 05/30/2003 03/24/2003 03/24/2008 EF FR-Z.1 RESPONSE TO HIGH CONTAINMENT PRESSURE 008 10/10/2003 03/24/2003 03/24/2008 EF FR-Z.2 RESPONSE TO CONTAINMENT FLOODING 005 05/30/2003 03/24/2003 03/24/2008 EF FR-Z.3 RESPONSE TO HIGH CONTAINMENT RADIATION LEVEL 005 05/30/2003 03/24/2003 03/24/2008 EF PRFR TOTAL:
18 GRAND TOTAL 18
TITLE:
RESPONSE TO IMMINENT PRESSURIZED THERMAL REV: 27 SHOCK CONDITION.l PAGE 1 of 23 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER
_2 RESPONSIBL 3MANAGER
/E
-F -ECT A03 EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:
.I RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE.2 of 23 A. PURPOSE -
This procedure provides actions to avoid, or limit, thermal shock or pressurized thermal shock to the reactor pressure vessel, or overpressure conditions at low temperature.
B. ENTRY CONDITIONS/SYMPTOMS
- 1. ENTRY CONDITIONS -
This procedure is entered from:
- a. F-0.4, INTEGRITY Critical Safety Function Status Tree, on either a RED or ORANGE condition.
.1 REV: 27 RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION PAGE 3 of 23 STP ACTION/EXPECTED RESPONSE llRESPONSE NOT OBTAINED I a * * * * * * *
- CAUTION 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 THE AFW PUMPS).
a a
- NOTE:
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.
o Foldout Page should be open and monitored periodically.
1 Check RCS Pressure -
GREATER THAN 250 PSIG [465 PSIG adverse CNMT]
IF RHR flow greater than 475 gpm.
THEN return to procedure and step in effect.
i EDP:
TITLE:V 27 FR-P.1 RESPONSE TO IMMINENT PRESSURIZED THERMAL R
SHOCK CONDITION PAGE 4 of 23 STEP ACTION/EXPECTED RESPONSE lRESPONSE NOT OBTAINEDl 4 * *
- CAUTION IF THE TDAFW PUMP IS THE ONLY AVAILABLE SOURCE OF FEED FLOW, THEN STEAM SUPPLY TO THE TDAFW PUMP MUST BE MAINTAINED FROM ONE S/G.
4 4
2 Check RCS Cold Leg Try to stop RCS cooldown:
Temperatures -
STABLE OR INCREASING
- a. Ensure S/G ARVs closed.
- b. Close both S/G MSIVs.
- c. Ensure MFW flow control valves closed.
. MFW regulating valves
. MFW bypass valves
- d. Ensure MFW pumps tripped.
- e. Ensure reheater steam supply valves are closed.
- f. IF S/G pressure less than condensate pressure. THEN stop all condensate pumps.
- h. Control total feed flow to non-faulted S/G(s) greater than 200 gpm until narrow range level greater than 5% [25% adverse CNMT] in at least one non-faulted S/G.
WHEN S/G level greater than 5% [25% adverse CNMT] in one non-faulted S/G.
THEN limit feed flow to stop RCS cooldown.
.I RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 5 of 23 STEP ACTION/EXPECTED RESPONSE lRESPONSE NOT OBTAINED NOTE: A faulted S/G is any S/G that is depressurizing in an uncontrolled manner or is completely depressurized.
3 Check If S/G Secondary Side Is Intact:
Minimize cooldown from faulted S/G(s):
o Pressure in both OR INCREASING o Pressure in both THAN 110 PSIG S/Gs - STABLE S/Gs - GREATER
- a. Close faulted S/G(s) TDAFW pump steam supply valve(s).
- S/G A. MOV-3505A
- S/G B. MOV-3504A
- b. IF both S/G(s) faulted. THEN control feed flow at 50 gpm to each S/G.
- c. IF any S/G NOT faulted. THEN isolate all feedwater to faulted S/G unless necessary for RCS temperature control.
IF a faulted S/G is necessary for RCS temperature control. THEN control feed flow at 50 gpm to that S/G.
4 Check PRZR PORV Block Valves:
- a. Power to PORV block valves -
AVAILABLE
- a. Restore power to block valves unless block valve was closed to isolate an open PORV:
- MOV-515. MCC D position 6C
- MOV-516. MCC C position 6C
- b. Block valves - AT LEAST ONE OPEN
- b. Open one block valve unless it.
was closed to isolate an open PORV.
IF at least one block valve can NOT be opened, THEN dispatch AO to locally check breaker.
- MOV-515. MCC D position 6C
- MOV-516. MCC C position 6C
-I RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 6 I
of 23 J
STEP ACTION/EXPECTED RESPONSE lRESPONSE NOT OBTAINEDl a * * *.
- * * *
- 4
- i*
4 CAUTION IF ANY PRZR PORV OPENS BECAUSE OF HIGH PRZR PRESSURE. THEN STEP 5 SHOULD BE PERFORMED AFTER PRESSURE DECREASES TO LESS THAN THE APPLICABLE PORV SETPOINT.
4 C
e S
i 4
4 u
4 4
4 4
4 5 Check PRZR PORV Status:
- a. Check Reactor Vessel Overpressure Protection System -
IN SERVICE
- a. Go to Step 5d.
- b. Perform the following:
- 1) Ensure at least one PRZR PORV open.
- 2) Continue with Step 6. WHEN pressure less than setpoint, THEN do Step 5e.
- c. Go to Step 5e
- d. PRZR pressure - LESS THAN 2335 PSIG
- d. Perform the following:
- 1) Ensure at least one PRZR PORV open.
- 2) Continue with Step 6. WHEN pressure less than setpoint.
THEN do Step 5e.
- e. Verify PRZR PORVs - CLOSED
- e. Manually close valve.
IF any valve can NOT be closed.
THEN manually close its block valve.
EOP:
TITLE:
FR-P.1 RESPONSE TO IMMINENT PRESSURIZED THERMAL REV: 27
.R-P.1 SHOCK CONDITION PAGE 7 of 23 STEP ACTION/EXPECTED RESPONSE 1RESPONSE NOT OBTAINED 6 Check SI Pumps -
ANY RUNNING 7 Check If SI Can Be Terminated:
o RCS subcooling based on core exit T/Cs - GREATER THAN 501F USING FIG-1.O. FIGURE MIN SUBCOOLING o Check RVLIS indication:
o Level (no RCPs) - GREATER THAN 77% [82% adverse CNMT]
-OR-o Fluid fraction (any RCP running) - GREATER THAN 84%
Go to Step 14.
Perform the following:
- a. IF RCS subcooling based on core exit T/Cs greater than 0 0F using FIG-1.O. FIGURE MIN SUBCOOLING and no RCP running. THEN attempt to start an RCP:
- 1) Establish conditions for starting an RCP:
o Bus 11A or l1B energized o Refer to ATT-15.0.
ATTACHMENT RCP START
- 2) IF conditions established.
THEN start one RCP.
- b. Go to Step 28.
CAUTION 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) 8 Reset SI
.1 REV: 27 RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION PAGE 8 of 23 I
STEP ACTION/EXPECTED RESPONSE lRESPONSE NOT OBTAINED 9 Stop SI And RHR Pumps And Place In AUTO 10 Reset CI:
- a. Depress CI reset pushbutton
- b. Verify annunciator A-26. CNMT ISOLATION - EXTINGUISHED
- b. Perform the following:
- 1) Reset SI.
- 2) Depress CI reset pushbutton.
11 Verify Adequate SW Flow:
- a. Check at least two SW pumps -
RUNNING
- a. Manually start SW pumps as power supply permits (257 kw each).
IF less than two SW pumps running. THEN perform the following:
- 1) Ensure SW isolation.
- 2) IF NO SW pumps running. THEN perform the following:
a) Pull stop any D/G that is NOT supplied by alternate cooling. AND immediately depress associated VOLTAGE SHUTDOWN pushbutton.
b) Refer to ATT-2.4.
ATTACHMENT NO SW PUMPS.
- 3) IF only one SW pump running.
THEN refer to AP-SW.2. LOSS OF SERVICE WATER.
- b. Dispatch AO to establish normal shutdown alignment (Refer to ATT-17.O, ATTACHMENT SD-1)
.1 RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 9 of 23
.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 12 Establish IA to CNMT:
- a. Verify non-safeguards busses energized from offsite power o Bus 13 normal feed - CLOSED
- a. Perform the following:
- 1) Close non-safeguards bus tie breakers:
-OR-o Bus 15 normal feed - CLOSED
- Bus 13 to Bus 14 tie
- Bus 15 to Bus 16 tie
- 2) Verify adequate emergency D/G capacity to run air compressors (75 kw each).
IF NOT. THEN perform the following:
o Start diesel air compressor (Refer to ATT-11.2. ATTACHMENT DIESEL AIR COMPRESSOR)
-OR-o Evaluate if CNMT RECIRC fans should be stopped (Refer to ATT-4.0.
ATTACHMENT CNMT RECIRC FANS).
- 3) WHEN bus 15 restored. THEN reset control room lighting.
- b. Check SW pumps - AT LEAST TWO PUMPS RUNNING
- b. Perform the following:
- 1) Restore IA using service air compressor OR diesel air compressor (Refer to ATT-11.2. ATTACHMENT DIESEL AIR COMPRESSOR).
- 2) Go to Step 12d.
This Step continued on the next page.
.I RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 10 of 23 STEP ACTION/EXPECTED RESPONSE lRESPONSE NOT OBTAINEDl (Step 12 continued from previous page)
- c. Verify SW isolation valves to turbine building - OPEN
- MOV-4613 and MOV-4670
- MOV-4614 and MOV-4664
- d. Verify adequate air compressor(s) - RUNNING
- e. Check IA supply:
o Pressure - GREATER THAN 60 PSIG o Pressure -
STABLE OR INCREASING
- c. Perform the following:
- 1) Manually align valves.
- 2) Dispatch AO to locally reset compressors as necessary.
- d. Manually start electric air compressors as power supply permits (75 kw each).
IF electric air compressors can NOT be started. THEN start diesel air compressor (Refer to ATT-11.2. ATTACHMENT DIESEL AIR COMPRESSOR).
- e. Perform the following:
- 1) Continue attempts to restore IA (Refer to AP-IA.1. LOSS OF INSTRUMENT AIR).
- 2) Continue with Step 13.
WHEN IA restored. THEN do Steps 12f and g.
' I RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 11 of 23 STEP ACTION/EXPECTED RESPONSE 1RESPONSE NOT OBTAINED 13 Check If Charging 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 #1 seal outlet temperature offscale high.
THEN dispatch AO to locally close seal injection needle valve(s) to affected RCP:
- RCP A. V-300A
. RCP B, V-300B
- 2) Ensure HCV-142 open. demand at 0%.
- b. Align charging RWST:
pump suction to
- b. IF LCV-112B can NOT be opened.
THEN dispatch AO to locally open V-358. manual charging pump suction from RWST (charging pump room).
o LCV-112B - OPEN o LCV-112C - CLOSED IF LCV-112C can NOT be closed.
THEN perform the following:
- 2) Verify charging pump A NOT running and place in PULL STOP.
- 3) WHEN V-358 open. THEN direct AO to close V-268 to isolate charging pumps B and C from VCT (charging pump room).
- c. Start charging pumps as necessary to establish charging line flow to REGEN HX - GREATER THAN 20 GPM
I RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 12 of 23 J
STEP ACTION/EXPECTED RESPONSEl RESPONSE NOT OBTAINED
- 14 Monitor SI Reinitiation Criteria:
o RCS subcooling based on core exit T/Cs - GREATER THAN FIG-1.O. FIGURE MIN SUBCOOLING o RVLIS indication:
o Level - GREATER THAN 77% [82%
adverse CNMT]
-OR-o Fluid fraction (any RCP running) - GREATER THAN 84%
Manually start SI pumps as necessary and perform the following:
- a. IF RCS subcooling based on core exit T/Cs greater than FIG-1.O.
FIGURE MIN SUBCOOLING and no RCP running. THEN attempt to start a RCP:
- 1) Establish conditions for starting an RCP:
o Bus 11A or llB energized o Refer to ATT-15.0.
ATTACHMENT RCP START
- 2) IF conditions established, THEN start one RCP.
- b. Go to Step 28.
15 Check RCS Hot Leg Temperatures -
STABLE IF increasing, THEN control feed flow and dump steam to stabilize RCS hot leg temperatures.
IF decreasing. THEN verify that actions of Step 2 and 3 have been performed before continuing with procedure.
EOP:
TITLE:
FR-P:l RESPONSE TO IMMINENT PRESSURIZED THERMAL REV: 27
.FR-P.1SHOCK CONDITION PAGE 13 of 23 STP ACTION/EXPECTED RESPONSE l[RESPONSE NOT OBTAINED 16 Check If SI ACCUMs Should Be Isolated:
- a. Check the following:
- a. Return to Step 14.
o RCS subcooling based on core exit T/Cs - GREATER THAN 00 F USING FIG-l.O, FIGURE MIN SUBCOOLING o RVLIS indication:
o Level - GREATER THAN 77%
[82% adverse CNMT]
-OR-o Fluid fraction (any RCP running) - GREATER THAN 84%
. 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.
- 3) Continue with Step 17.
Do NOT decrease RCS pressure to less than unisolated ACCUM pressure.
IF an accumulator can NOT be isolated or vented. THEN consult TSC to determine contingency actions.
- d. Locally reopen breakers for MOV-841 and MOV-865
.1 RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 14 of 23 STEP ACTION/EXPECTED RESPONSE lRESPONSE NOT OBTAINED 4 * *,
- i i
CAUTION o THE RCS SHOULD NOT BE DEPRESSURIZED TO LESS THAN SI ACCUM PRESSURE UNTIL SI ACCUMS ISOLATED.
o THE UPPER HEAD REGION MAY VOID DURING RCS DEPRESSURIZATION IF RCPS ARE NOT RUNNING.
THIS WILL RESULT IN A RAPIDLY INCREASING PRZR LEVEL.
4 * * *,
4, 4
- NOTE:
o If auxiliary spray is in use. spray flow may be increased by closing normal charging valve AOV-294 and normal PRZR spray valves.
o When using a PRZR PORV select one with an operable block valve.
17 Depressurize RCS To Decrease RCS Subcooling:
- a. Depressurize using normal PRZR spray if available
- a. IF normal spray NOT available.
THEN use one PRZR PORV.
IF IA NOT available. THEN refer to
. ATT-12.0. ATTACHMENT N2 PORVS.
IF no PRZR PORV available. THEN use auxiliary spray valve (AOV-296).
- b. Depressurize RCS until one of the following conditions satisfied:
o RCS subcooling based on core exit T/Cs - LESS THAN.10 0F USING FIG-1.O. FIGURE MIN SUBCOOLING
-OR-o PRZR level - GREATER THAN 75%
[65% adverse CNMT1
-OR-o RCS pressure - LESS THAN 160
[sig 1200 psig adverse
- c. Stop RCS depressurization
1 RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 15 of 23
!J STP ACTION/EXPECTED RESPONSE llRESPONSE NOT OBTAINED
- 18 Monitor RCP Operation:
- a. RCPs - ANY RUNNING
- b. Check the following:
- a. Go to Step 19.
- b. Stop affected RCP(s).
o RCP #1 seal D/P - GREATER THAN 220 PSID o
RCP #1 seal leakoff - WITHIN THE NORMAL OPERATING RANGE OF FIG-4.0.
FIGURE RCP SEAL LEAKOFF 4
4 4
CAUTION AN INCREASE IN RCS PRESSURE MAY RESULT IN EXCESSIVE REACTOR VESSEL STRESS.
RCS PRESSURE AND TEMPERATURE SHOULD BE MAINTAINED STABLE WHILE PERFORMING SUBSEQUENT STEPS IN THIS PROCEDURE.
19 Check PRZR Level -
GREATER THAN 13% [40% adverse CNMT]
Try to restore level with charging while maintaining stable RCS pressure.
IF level can NOT be restored. THEN go to Step 27.
.I RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 16 of 23 STEP ACTION/EXPECTED RESPONSE lRESPONSE NOT OBTAINED 20 Verify Adequate SW Flow To CCW Hx:
- a. Verify at least two SW pumps -
RUNNING
- a. Manually start pumps as power supply permits (257 kw each).
IF less than two SW pumps can be operated. THEN perform the following:
- 1) IF NO SW pumps running, THEN perform the following:
a) Pull stop any D/G that is NOT supplied by alternate cooling. AND immediately depress associated VOLTAGE SHUTDOWN pushbutton.
b) Refer to ATT-2.4, ATTACHMENT NO SW PUMPS.
- 2) IF only one SW pump running.
THEN refer to AP-SW.2. LOSS OF SERVICE WATER.
- 3) Go to Step 25.
WHEN two SW pumps can be operated THEN do Steps 21 through 24.
- b. Verify AUX BLDG SW isolation valves - OPEN
- b. Manually align valves.
- MOV-4615 and MOV-4734
. MOV-4616 and MOV-4735
- c. Verify CNMT RECIRC fan annunciator C-2. HIGH TEMPERATURE ALARM - EXTINGUISHED
- c. Manually start an additional SW pump as power supply permits (257 kw each).
TITLE:
RESPONSE TO IMMINENT PRESSURIZED THERMAL REV: 27 SHOCK CONDITION PAGE 17 of 23 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 21 Check If Normal CVCS Operation Can Be Established
- a. Verify IA restored:
o IA to CNMT (AOV-5392) - OPEN
- a. Continue with Step 25.
WHEN IA restored. THEN do Steps 21 through 24.
o IA pressure - GREATER THAN 60 PSIG
- b. Verify instrument bus D -
ENERGIZED
- b. Energize MCC B.
available. THEN following:
IF MCC B NOT perform the
- 1) Verify MCC A energized.
- 2) Place instrument bus D on maintenance supply.
- c. CCW pumps - ANY RUNNING
- c. Perform the following:
- 1) IF any RCP #1 seal outlet temperature offscale high.
THEN isolate CCW to thermal barrier of affected RCP(s).
- RCP A. MOV-749A and MOV-759A
. RCP B. MOV-749B and MOV-759B
- 2) Manually start one CCW pump.
- d. Charging pump - ANY RUNNING
- d. Continue with Step 26.
WHEN any charging pump running. THEN do Steps 22 through 26.
RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 18 of 23 STP ACTION/EXPECTED RESPONSE llRESPONSE NOT OBTAINED CAUTION IF RCS PRESSURE LESS THAN 250 PSIG. THEN PCV-135 SHOULD BE ADJUSTED TO ESTABLISH DESIRED LETDOWN FLOW. NOT TO INCREASE PRESSURE.
- a
- *
- a
- a a
- *
- a
- * * * * * * * * * * * * * * * * *
- a a
- a 22 Establish Normal Letdown:
- a. Establish charging line flow to REGEN Hx - GREATER THAN 20 GPM
- b. Place the following switches to CLOSE:
- Letdown orifice valves (AOV-200A. AOV-200B. and AOV-202)
- AOV-371. letdown isolation valve
. AOV-427. loop B cold leg to REGEN Hx
- c. Place letdown controllers in MANUAL at 40% open
. TCV-130
. PCV-135 IF RCP seal return has been established. THEN establish excess letdown as follows:
o Place excess letdown divert valve, AOV-312. to NORMAL.
o Ensure CCW from excess letdown open. (AOV-745).
o Open excess letdown isolation valve AOV-310.
o Slowly open HCV-123 to maintain excess letdown temperature less than 1950F and pressure less than 100 psig.
o Adjust charging pump speed as necessary.
- d. Reset both trains of XY relays for AOV-371 and AOV-427 IF RCP seal return NOT established.
THEN consult TSC to determine if excess letdown should be placed in service.
- e. Open AOV-371 and AOV-427
- f. Open letdown orifice valves as necessary
- g. Place TCV-130 in AUTO at 105'F
- h. Place PCV-135 in AUTO at 250 psig
- i. Adjust charging pump speed and HCV-142 as necessary
TITLE:
RESPONSE TO IMMINENT PRESSURIZED THERMAL REV: 27 SHOCK CONDITION PAGE 19 of 23 STP ACTION/EXPECTED RESPONSE llRESPONSE NOT OBTAINED 23 Check VCT Makeup System:
- a. Adjust boric acid flow control valve in AUTO to 9.5 gpm
- b. Adjust RMW flow control valve in AUTO to 40 gpm
- c. Verify the following:
- c. Adjust controls as necessary.
- 1) RMW mode selector switch in AUTO
- 2) RMW control armed - RED LIGHT LIT
- d. Check VCT level:
o Level - GREATER THAN 20%
-OR-o Level -
STABLE OR INCREASING
- d. Manually increase VCT makeup flow as follows:
- 1) Ensure BA transfer pumps and RMW pumps running.
IF NOT.
THEN reset MCC C and MCC D UV lockouts as necessary.
- 2) Place RMW flow control valve HCV-lll in MANUAL and increase RMW flow.
- 3) Increase boric acid flow as necessary.
-I RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 20 of 23 STEP ACTION/EXPECTED RESPONSEl RESPONSE NOT OBTAINEDl 24 Check Charging Pump Aligned To VCT:
Suction
- a. VCT level - GREATER THAN 20%
- a. IF VCT level can NOT be maintained greater than 5%. THEN perform the following:
- 1) Ensure charging pump suction aligned to RWST o LCV-112B open o LCV-112C closed
- 2) Continue with Step 25.
WHEN VCT level greater than 40%.
THEN do Step 24b.
- b. Verify charging pumps aligned to VCT
- b. Manually align valves as necessary.
o LCV-112C - OPEN o LCV-112B - CLOSED 25 Check PRZR Level -
LESS THAN 75% [65% adverse CNMT]
Control charging and letdown as necessary to reduce PRZR level to less than 75% [65% adverse CNMT].
If necessary establish excess letdown.
IF no letdown available AND CCW to RCPs established. THEN cycle charging pumps as necessary to control PRZR level.
I RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 21 of 23 STEP ACTION/EXPECTED RESPONSE lRESPONSE NOT OBTAINED NOTE:
For optimum long term pressure control, saturated conditions should be restored in the PRZR.
26 Verify PRZR Liquid Temperature (TI-424) -
AT SATURATION FOR DESIRED PRESSURE 27 Check RCS Subcooling Based On Core Exit T/Cs -
LESS THAN 100 F USING FIG-1.0, FIGURE MIN SUBCOOLING IF PRZR liquid temperature low.
THEN energize PRZR heaters as necessary to establish desired temperature.
IF RCS pressure less than 160 psig
[200 psig adverse CNMT]. THEN go to Step 28.
IF NOT. THEN depressurize using normal spray.
Return to step 17b.
IF normal spray NOT available and letdown is in service. THEN use auxiliary spray for any further depressurization. Return to Step 17b.
IF auxiliary spray NOT available.
THEN return to Step 17a.
28 Check Cool Down Rate In RCS Cold Legs -
GREATER THAN 1000F IN ANY 60 MINUTES PERIOD Return to procedure and step in effect.
29 Maintain RCS Pressure And Temperature Stable For At Least 1 Hour
- a. Control steam dump and feed flow as necessary
- b. Perform actions of other procedures in effect which do not cool down the RCS or increase RCS pressure until the RCS temperature soak has been completed
-1 RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 22 of 23 STEP ACTION/EXPECTED RESPONSE lRESPONSE NOT OBTAINED NOTE:
The following pressure. temperature and cooldown rate limits remain applicable in subsequent procedures.
30 WHEN 1 HOUR Soak Is Complete, THEN Continue RCS Cooldown And Depressurization As Necessary
- a. Maintain RCS pressure and cold leg temperature within the limits of FIG-11.0. FIGURE SOAK LIMITS
- b. Establish and maintain cooldown rate in RCS cold legs - LESS THAN 500 F IN ANY 60 MINUTES PERIOD 31 Verify SI Flow Not Required:
o RCS subcooling based on core exit T/Cs - GREATER THAN FIG-1.0, FIGURE MIN SUBCOOLING o RVLIS indication:
o Level - GREATER THAN 77% [82%
adverse CNMT]
-OR-o Fluid fraction (any RCP running) - GREATER THAN 84%
Manually start SI pumps as necessary.
IF RCS subcooling based on core exit T/Cs greater than FIG-1.0.
FIGURE MIN SUBCOOLING and no RCP running. THEN perform the following:
- a. Establish conditions for starting an RCP:
o Bus 11A or lB energized o Refer to ATT-15.0. ATTACHMENT RCP START
- b. IF conditions established. THEN start one RCP.
-1 RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITION REV: 27 PAGE 23 of 23 STP ACTION/EXPECTED RESPONSE llRESPONSE NOT OBTAINED 32 Return To Procedure And Step In Effect
-END-
TITLE:
RESPONSE TO IMMINENT PRESSURIZED THERMAL REV: 27
.1 SHOCK CONDITION PAGE 1 of 1 FR-P.1 APPENDIX LIST TITLE
- 1)
FIGURE MIN SUBCOOLING (FIG-a.0)
- 2)
FIGURE SOAK LIMITS (FIG-11.0)
- 3)
FIGURE RCP SEAL LEAKOFF (FIG-4.0)
- 4)
ATTACHMENT RCP START (ATT-15.0)
- 5)
ATTACHMENT SD-1 (ATT-17.0)
- 6)
ATTACHMENT CNMT RECIRC FANS (ATT-4.0)
- 7)
ATTACHMENT N2 PORVS (ATT-12.0)
- 8)
ATTACHMENT NO SW PUMPS (ATT-2.40
- 9)
ATTACHMENT LOSS OF OFFSITE POWER (ATT-8.5)
- 10)
ATTACHMENT DIESEL AIR COMPRESSOR (ATT-11.2)
- 10)
FOLDOUT
.EOP:
TITLE:
FR-P.1 RESPONSE TO IMMINENT PRESSURIZED THERMAL REV: 27
.R-P.1 SHOCK CONDITION PAGE 1 of 1 FOLDOUT PAGE NOTE:
This Foldout Page applies to all FR-P series procedures.
- a.
Pull stop any D/G that is NOT supplied by alternate cooling, AND immediately depress associated VOLTAGE SHUTDOWN pushbutton.
- b.
Refer to ATT-2.4, ATTACHMENT NO SW PUMPS.