ML17250B116
| ML17250B116 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 04/09/1990 |
| From: | Widay J ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17250B096 | List:
|
| References | |
| ES-1.1, NUDOCS 9004200705 | |
| Download: ML17250B116 (52) | |
Text
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ES-1.1 TITLE:
SI TERMINATION REV 6
PAGE 1 of 22 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE T SUPERINT ND NT EFFECTIVE DATE OA~ NON-QA CATEGORY 1.0 REVIEWED BY:
004200705 900420 li i
,'PDR ADOCK 0500024'
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ES-1.1 TITLE:
SI TERMINATION REV 6
PAGE 2 of 22 A.
PURPOSE This procedure provides the necessary instructions to terminate safety injection and stabilize plant conditions.
B.
ENTRY CONDITIONS/SYMPTOMS 1.
ENTRY CONDITIONS This procedure is entered from:
a.
E-O, REACTOR TRIP OR SAFETY INJECTION, and E
1 ~
LOSS OF REACTOR OR SECONDARY COOLANTg when specified termination criteria are satisfied.
b ~
FR H ~ 1 g
RESPONSE
TO LOSS OF SECONDARY HEAT SINKg after secondary heat sink has been reestablished and SI has been terminated.
SI TERMINATION REV' PAGE 3 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION IF OFFSITE POWER IS LOST AFTER SI RESET, SELECTED SW PUMPS AND ONE CCW PUMP VILL AUTO START ON EMERGENCY D/G.
MANUAL ACTION WILL BE REQUIRED TO RESTART SAFEGUARDS EQUIPMENT.
NOTE:
o FOLDOUT page should be open AND monitored periodically.
o Adverse CNMT values should be used vhenever CNMT pressure is greater than 4 psig or CNMT radiation is greater than 10-
~ R/hr.
1 Reset SI 2
Reset CI:
- a. Operate CI reset key svitch
- b. Verify annunciator A-26, CNMT ISOLATION - EXTINGUISHED
- b. Perform the folloving:
- 1) Reset SI.
- 2) Operate CI reset key svitch.
3 Maintain PRZR Pressure Between 1800 PSIG And 2235 PSIG o
Reset PRZR heaters o
Use normal PRZR spray
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6 PAGE 4 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 4 Verify Adequate SW Flow:
a.
Check at least two SW pumps-RUNNING
- b. Dispatch AO to establish normal shutdown alignment (Refer to Attachment SD-1)
- a. Manually start SW pumps as power supply permits (258 kw each).
IF less than two SW pumps
- running, THEN perform the following:
- 1) Ensure SW isolation.
- 2) Dispatch AO to establish normal shutdown alignment (Refer to Attachment SD-1).
3)
Go to Step 7.
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ES-1.1 TITLE:
SI TERMINATION REV:
6 PAGE 5 Of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 5 Establish IA to CNMT:
- a. Verify non-safeguards busses energized from offsite power o
Bus 13 normal feed - CLOSED
-OR-o Bus 15 normal feed - CLOSED
- b. Verify SW isolation valves to turbine building -
OPEN
~ MOV-4613 and MOV-4670
~ MOV-4614 and MOV-4664
- c. Verify at least two air compressors
- RUNNING
- d. Check IA supply:
o Pressure
- GREATER THAN 60 PSIG o
Pressure
- STABLE OR INCREASING
Perform the following:
- 1) Close non-safeguards bus tie breakers:
~ 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 evaluate if CNMT RECIRC fans should be stopped (Refer to Attachment CNMT RECIRC FANS).
3)
WHEN bus 15 restored, THEN reset control room lighting.
- b. Manually align valves.
- c. Manually start air compressors as power supply permits (75 kw each).
IF air compressors can NOT be started, THEN dispatch AO to locally reset compressors as necessary.
- d. Perform the following:
- 1) Continue attempts to restore IA (Refer to AP-IA.l, LOSS OF INSTRUMENT AIR).
- 2) Continue with Step 6.
WHEN IA restored, THEN do Steps 5e and f.
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PAGE 6 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 6
Check If Charging Flow Has Been Established:
- a. Charging pumps
- ANY RUNNING a.
Perform the following:
- 1) IP CCW flow is lost to any RCP thermal barrier OR any RCP fl seal outlet temperature offscale high, THEN dispatch AO with key to RWST gate to close seal injection needle valve(s) to affected RCP:
~ RCP A, V-300A
~ RCP B, V-300B
- b. Charging pump suction aligned to RWST:
o LCV-112B -
OPEN o
LCV-112C -
CLOSED
- c. Start charging pumps as necessary and adjust charging flow to restore PRZR level
- 2) Ensure HCV-142 open, demand at OX.
- b. Manually align valves as necessary.
IP LCV-112B can NOT be opened, THEN perform the following:
- 1) Verify charging pump A NOT running and place in PULL STOP.
- 2) Dispatch AO to locally open manual charging pump suction from RWST (V-358 located in charging pump room).
3)
WHEN V-358 open, THEN direct AO to close V-268 to isolate charging "pumps B and C from VCT (V-268 located in charging pump room).
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PAGE 7 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 7
Stop SI And RHR Pumps And Place In AUTO 8 Verify SI Flow Not Required:
a.
RCS subcooling based on core exit T/Cs - GREATER THAN O' USING FIGURE MIN SUBCOOLING b.
PRZR level - GREATER THAN 5X
[30X adverse CNMT]
- a. Manually operate SI pumps as necessary and go to E-l, LOSS OF REACTOR OR SECONDARY COOLANT, Step l.
- b. Control charging flow to maintain PRZR level.
IF PRZR level can NOT be maintained, THEN manually operate SI pumps as necessary and go to E-.l, LOSS OF REACTOR OR SECONDARY COOLANT, Step l.
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ES-1.1 TITLE:
SI TERMINATION REV:
6 PAGE 8 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION ALIGNING SI PUMP SUCTION TO RVST BEFORE ISOLATING BAST MAY RESULT IN BACKFLOV FROM RVST TO BASTS.
9 Align SI Pump Suction To RWST
- a. Close SI pump suction valves from BASTs:
~ MOV-826A
~ MOV-826B
~ MOV-826C
~ MOV-826D a.
Ensure at least one valve in each flov path closed.
~ MOV-826A or MOV-826B
~ MOV-826C or MOV-826D b.
Open SI pump suction valves from RVST:,
~ MOV-825A
~ MOV-825B
- c. Operate all available SI pumps for 5 minutes to flush pump RECIRC lines
- b. Ensure at least one valve is open.
d.
VHEN RECIRC line flush complete, THEN consult plant staff to determine if SI lines should be flushed using Attachment SI FLUSH
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6 PAGE 9 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED
10 Check If CNMT Spray Should Be Stopped:
a.
CNMT spray pumps
- RUNNING
- b. Check CNMT pressure
- LESS THAN 4 PSIG
- c. Reset CNMT spray d.
Check NaOH tank outlet valves-CLOSED
~ AOV-836A
~ AOV-836B a.
Go to Step 11.
- b. Continue with Step ll.
ASHEN CNMT pressure less than 4 psig, THEN do Steps 10c through f.
- d. Place NaOH tank outlet valve controllers to MANUAL and close valves.
e.
Stop CNMT spray pumps and place in AUTO
- f. Close CNMT spray pump discharge valves
~ MOV-860A
~ MOV-860B
~ MOV-860C
~ MOV-860D-ll Verify MRPI Indicates-ALL CONTROL AND SHUTDOWN RODS ON BOTTOM IP one or more control rods NOT fully inserted, THEN borate 175 gallons for each control rod not fully inserted (Refer to AP-CVCS.2, IMMEDIATE BORATION).
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ES-1.1 TITLE:
SI TERMINATION REV 6
PAGE 10 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 12 Establish Condenser Steam Dump Pressure Control:
- a. Verify condenser available:
o Any MSIV -
OPEN o
Annunciator G-15, STEAM DUMP
- LIT
- a. Place S/G ARV controllers in AUTO at desired pressure and go to Step 13.
- b. Ad5ust condenser steam dump controller HC-484 to desired pressure and'erify in AUTO.
- c. Place steam dump mode selector switch to MANUAL.
13 Verify Adequate SW Flow To CCW Hx:
- a. Verify at least two SW pumps-RUNNING
- b. Verify AUX BLDG SW isolation valves -
OPEN
~ MOV-4615 and MOV-4734
~ MOV-4616 and MOV-4735
- c. Verify CNMT RECIRC fan annunciator C-2, HIGH TEMPERATURE ALARM - EXTINGUISHED
- a. Manually start pumps as power supply permits (258 kw each).
IP less than two SW pumps can be
- operated, THEN go to Step 20.
Continue with Step 20.
WHEN SW restored to AUX BLDG, THEN do Steps 13c through 19.
- c. Manually start an additional SW pump as power supply permits (258 kw each).
S 0
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ES-1.1 TITLE:
SI TERMINATION REV' PAGE 11 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 14 Check If Normal CVCS Operation Can Be Established
- a. Verify IA restored:
OPEN o
IA pressure
- GREATER THAN 60 PSIG
- a. Continue with Step 20.
VHEN IA can be restored, THEN do Steps 14 through 19.
- b. Verify instrument bus D-ENERGIZED c.
CCW pumps
- ANY RUNNING
- d. Charging pump - ANY RUNNING
- b. Energize MCC B.
IF MCC B NOT available, THEN perform the following:
- 1) Verify MCC A energized.
- 2) Place instrument bus D on maintenance supply.
- c. Perform the following:
- 1) IF any RCP kl seal outlet temperature offscale high, THEN isolate CCV 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. Continue with Step 20.
WHEN any charging pump running, THEN do Steps 15 through 19.
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ES-1.1 TITLE:
SI TERMINATION REV:
6 PAGE 12 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 15 Check If Seal Return Flow Should Be Established:
- a. Verify RCP 81 seal outlet temperature LESS THAN 235'F
- b. Verify RCP seal outlet valves-OPEN
~ AOV-270A
~ AOV-270B a.
Go to Step 16.
- b. Manually open valves as necessary.
- c. Reset both trains of XY relays for RCP seal return isolation valve MOV-313 d.
Open RCP seal return isolation valve MOV-313
- e. Verify RCP gl seal leakoff flow
- LESS THAN 5.5 GPM
- f. Verify RCP gl seal leakoff flow
- GREATER THAN 0.25 GPM
- d. Perform the following:
- 1) Place MOV-313 switch to OPEN.
- 2) Dispatch AO with key to RVST gate to locally open MOV-313.
- e. IF any RCP seal leakoff flow greater than 5.5 gpm THEN:
o Close the affected RCP seal discharge valve.
~ RCP A, AOV-270A
~ RCP B, AOV-270B o
Trip the affected RCP.
IF both RCP seal discharge valves are shut, THEN go to Step 16.
- f. Refer to AP-RCP.1, RCP SEAL MALFUNCTION.
H N
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ES-1.1 TITLE:
SI TERMINATION REV 6
PAGE 13 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 16 Verify PRZR Level GREATER THAN 13.
[40% adverse CNMT]
Continue with Step 18.
WHEN PRZR level increases to greater than 13X
[40X adverse CNMT], THEN do Step 17.
17 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 TCV-130 and PCV-135 in MANUAL at 25X open
- d. Reset both trains of XY relays for AOV-371 and AOV-427 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 to control PRZR level 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 195'F and pressure less than 100 psig.
o Adjust charging pump speed as necessary.
IF RCP seal return NOT established, THEN consult Plant 'Staff to determine if excess letdown should be placed in service.
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ES-1. 1 TITLE:
SI TERMINATION REV 6
PAGE 14 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 18 Check VCT Makeup System:
a.
BAST levels - ANY GREATER THAN 5X b.
Check Annunciator B-23, BORIC ACID TANK LO LO LEVEL-EXTINGUISHED a.
Go to Step 19.
- b. Perform the following:
- 1) Ad)ust boric acid flov control valve to required flov from table.
BAST LEVEL (10X 10-15X 15-20X
>20X BORIC ACID PLOV (GPM) 4.5 6.7 8.9 10.0
- c. Ad]ust boric acid flow control valve in AUTO to 4.5 gpm
- d. Verify the folloving:
1)
RMW mode selector switch in AUTO 2)
RMW control armed - RED LIGHT LIT e.
Check VCT level:
o Level - GREATER THAN 20X
-OR-o Level - STABLE OR INCREASING 2)
Go to Step 18d.
- d. Adjust controls as necessary.
I
- e. Manually increase VCT makeup flov as follows:
- 1) Ensure BA transfer pumps and RMV pumps running.
IP NOT, THEN dispatch AO 'to locally reset MCC C and MCC D UV lockouts as necessary.
- 2) Place RMW flow control valve HCV-111 in MANUAL and increase RMV flow.
- 3) Increase boric acid flov as necessary.
tl
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ES-1. 1 TITLE:
SI TERMINATION REV:
6 PAGE 15 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 19 Check Charging Pump Suction Aligned To VCT:
a.
VCT level - GREATER THAN 20X
- a. IF VCT level can NOT be maintained greater than 5X, THEN perform the following:
- 1) Ensure charging pump suction aligned to RVST o
LCV-112B open o
LCV-112C closed
- b. Verify charging pumps aligned to VCT o
LCV-112C -
OPEN o
LCV-112B - CLOSED
- 2) Continue with Step 20.
VHRN VCT level greater than 40X, THEN do Step 19b.
- b. Manually align valves as necessary.
20 Check RCS Hot Leg Temperatures STABLE Control steam dump and total feed flow as necessary to stabilize RCS temperature.
NOTE: If auxiliary spray is in use, spray-flow may be increased by closing normal charging valve AOV-294 and normal PRZR spray valves.
21 Control PRZR Heaters And Operate Normal Spray To Stabilize RCS Pressure r
IF normal spray NOT available and letdown is in service, THEN use auxiliary spray.
IF auxiliary spray NOT available, THEN use one PRZR PORV.
WW4
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ES-1.1 TITLE:
SI TERMINATION REV 6
PAGE 16 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION IF CST LEVEL DECREASES TO LESS THAN 5 FEET, THEN ALTERNATE WATER SOlJRCES FOR AFW PUMPS WILL BE NECESSARY (REFER TO ER-AFW.l, ALTERNATE WATER SUPPLY TO AFW PUMPS).
NOTE:
TDAFW pump flow control valves fail open on loss of IA.
22 Check Intact S/G Levels:
- a. Narrow range level - GREATER THAN 5% [25X adverse CNMT]
- b. Control feed flow to maintain narrow range level between 17X
[25% adverse CNMT] and 50X
- a. Maintain total feed flow greater than 200 gpm until narrow range level. greater than 5X [25X adverse CNMT] in at least one S/G.
- b. IF narrow range level in any S/G continues to increase, THEN stop feed flow to that S/G.
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PAGE 17 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 23 Verify All AC Busses ENERGIZED BY OFFSITE POWER o
Normal feed breakers to all 480 volt busses
- CLOSED Perform the following:
- a. IF any AC emergency bus normal feed breaker
- open, THEN ensure associated D/G breaker closed.
o 480 volt bus voltage - GREATER THAN 420 VOLTS o
Emergency D/G output breakers-OPEN
- b. Perform the folloving as necessary:
- 1) Close non-safeguards bus tie breakers:
i Bus 13 to Bus 14 tie
~ Bus 15 to Bus 16 tie
- 2) Reset Bus 13 and Bus 15 lighting breakers.
- 4) Place the following pumps in PULL STOP:
~ EH pumps
~ Turning gear oil pump
~ HP seal oil backup pump
- 5) Restore pover to MCCs.
~ A from Bus 13
~ B from Bus'l5
~ E from Bus 15
~ F from Bus 15
- 6) Start CNMT RECIRC fans as necessary.
- 7) Refer to Attachment SI/UV for other equipment lost with loss of offsite power.
- c. Try to restore offsite pover to all AC busses (Refer to ER-ELEC.l, RESTORATION OF OFFSITE POMER).
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ES-1.1 T!TLE:
SI TERMINATION REV:
6 PAGE 18 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
Adverse CNMT conditions or loss of forced air cooling may result in failure of NIS detectors.
24 Check If Source Range Channels Should Be Energized:
a.
Source range channels-DEENERGIZED a.
Go to Step 24e.
b.
Check intermediate range flux-EITHER CHANNEL LESS THAN 10 xo AMPS
- b. Perform the following:
- 1) IF neither intermediate range channel is decreasing, THEN initiate boration.
c.
Check the following:
o Both intermediate range channels LESS THAN
]O-xo AMPS
- 2) Continue with Step 25.
WHEN flux is LESS THAN 10-'mps on any operable
- channel, THEN do Steps
- 24c, d and e.
- c. Continue with step 25.
WHEN either condition met, THEN do Steps 24d and e.
-OR-o Greater than 20 minutes since reactor trip
- d. Verify source range detectors-ENERGIZED
- d. Manually energize source range detectors by depressing P-6 permissive defeat pushbuttons (2
of 2).
- e. Transfer Rk-45 recorder to one source range and one intermediate range channel IF source ranges can NOT be
- restored, THEN refer to ER-NIS.l, SR MALFUNCTION, and go to Step 25.
e e
~ '
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ES-1. 1 LITLE:
SI TERMINATION REV:
6 PAGE 19 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 25 Check If Emergency D/Gs Should Be Stopped:
- a. Verify AC emergency busses energized by offsite power:
o Emergency D/G output breakers OPEN
- a. Try to restore offsite power (Refer to ER-ELEC.1, RESTORATION OF OPPSITE POWER).
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)
NOTE:
SW should be aligned to CCW Hxs before restoring RCP seal cooling.
26 Check RCP Cooling:
a.
Establish normal cooling to RCPs (Refer to Attachment SEAL COOLING).
o Annunciator A-7, RCP 1A CCW RETURN HIGH TEMP OR LOV PLOW EXTINGUISHED o
Annunciator A-15, RCP 1B CCW RETURN HIGH TEMP OR LOV FLOW EXTINGUISHED
- b. Check RCP seal infection:
o Labyrinth seal D/Ps - GREATER THAN 15 INCHES VATER
-OR-o RCP seal in5ection flow to each RCP - GREATER THAN 6 GPM
V
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ES-1. 1 TITLE:
SI TERMINATION REV 6
PAGE 20 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION IF RCP SEAL COOLING HAD PREVIOUSLY BEEN LOST, THEN THE AFFECTED RCP SHOULD NOT BE STARTED PRIOR TO A STATUS EVALUATION.
27 Check RCP Status AT LEAST ONE RUNNING
- a. Establish conditions for starting an RCP:
o Verify bus llA or llB energized.
o Refer to Attachment RCP START.
- b. Start one RCP.
IF an RCP can NOT be started, THEN
'erify natural circulation (Refer to Attachment NC).
IF natural circulation NOT
- verified, THEN increase dumping steam from intact S/Gs.
t 0
I II
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ES-1.1 ttjLE:
SI TERMINATION REV 6
PAGE 21 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 28 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:
- 2) Verify at least one control rod shroud fan - RUNNING
- 3) Verify one Rx compartment cooling fan - RUNNING
- d. Verify Attachment SD COMPLETE 1)
Go to Step 29.
- 2) Manually start one fan as power supply permits (45 kw)
- 3) Perform the following:
o Manually start one fan as power supply permits (23 kw)
0
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~ 1 TITLE:
SI TERMINATION REV:
6 PAGE 22 of 22 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 29 Maintain Plant Conditions Stable:
a.
RCS pressure
- BETVEEN 1800 PSIG AND 2235 PSIG b.
PRZR level - BETVEEN 20X AND 30%
- c. Intact S/G narrow range levels-BETVEEN 17% AND 39X d.
RCS cold leg temperature-STABLE
- a. Control PRZR heaters and spray as necessary.
- b. Control charging as necessary.
- c. Control S/G feed flow as necessary.
- d. Control dumping steam as necessary.
IF cooldown continues, THEN close both MSIVs.
30 Verify SI Flow Not Required:
a.
RCS subcooling based on core exit T/Cs - GREATER THAN O' USING FIGURE MIN SUBCOOLING b.
PRZR level - GREATER THAN 5%
[30% adverse CNMTJ
- a. Manually operate SI pumps as necessary and go to E-l, LOSS OF REACTOR OR SECONDARY COOLANT, Step l.
- b. Control charging flow to maintain PRZR level.
IF PRZR level can NOT be maintained, THEN manually operate SI pumps as necessary and go to E-l, LOSS OF REACTOR OR SECONDARY COOLANT, Step l.
31 Go To Procedure 0-2.1, NORMAL SHUTDOWN TO HOT SHUTDOWN
-END-
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PAGE 1 of '1 ES-1.1 APPENDIX LIST TITLE PAGES 1)
RED PATH
SUMMARY
2)
FIGURE MIN SUBCOOLING 3)
ATTACHMENT CNMT RECIRC 4)
ATTACHMENT D/G STOP 5)
ATTACHMENT NC 6)
ATTACHMENT SEAL COOLING 7)
ATTACHMENT RCP START 8)
ATTACHMENT SD-1 9)
ATTACHMENT SD-2 10)
ATTACHMENT SI/UV 11)
ATTACHMENT SI FLUSH 12)
ATTACHMENT AUX BLDG SW 13)
FOLDOUT
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PAGE 1 of 1 RED PATH
SUMMARY
a
~
b.
c d.
e.
SUBCRITICALITY Nuclear power greater than 5w 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
[46%
adverse CNMT]
HEAT SINK Narrow range level in all S/Gs less than 54
[254 adverse CNMT] AND total feedwater flow less than 200 gpm INTEGRITY Cold leg temperatures decrease greater than 100'F in last 60 minutes AND RCS cold leg temperature less than 285'F CONTAINMENT CNMT pressure greater than 60 psig
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ES-1.1 TITLE:
SI TERMINATION REV' PAGE 1 of 1 FIGURE MIN SUBCOOLING NOTE:
Subcooling Margin = Saturation Temperature From Figure Below [-] Core Exit T/C Indication
=
RCS PRESSURE (PSIG) 2500 2400 2300 2200 2100 2000 1900 1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 RCS PRESSURE INCREMENTS 20 PSIG SUBCOOLED REGION ADVERSE CNMT NORMAL CNMT INADEQUATE SUBCOOLING REGION TEMPERATURE INCREMENTS 10'F 200 250 300 350 400 450 500 550 600 650 700 CORE EXIT SATURATION TEMPERATURE ('F)
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ES-1.1 TITLE:
SI TERMINATXON REV 6
PAGE 1 of 1 FOLDOUT PAGE 1.
SI REINITIATION CRITERIA IF EITHER condition listed below occurs, THEN manually operate SI pumps as necessary and go to E-1, LOSS OF REACTOR OR SECONDARY COOLANT, Step 1:
o RCS subcooling based on core exit T/Cs LESS THAN O'F USXNG FIGURE MIN SUBCOOLING OR o
PRZR level CHARGING CAN NOT CONTROL LEVEL GREATER THAN 54
[30% adverse CNMT]
2.
SI TERMINATION CRITERIA IF ALL.conditions listed below occur, THEN go to ES-1.1, SI TERMINATION, Step 1:
a.
RCS subcooling based on core exit T/Cs GREATER THAN O'F USING REQUIREMENTS OF FIGURE MIN SUBCOOLXNG
- b. Total feed flow to intact S/Gs GREATER THAN 200 gpm OR-Narrow range level in at least one intact S/G GREATER THAN 5~o
[254 adverse CNMT]
c.
RCS pressure:
o GREATER THAN 1625 psig
[1825 psig adverse CNMT]
o STABLE OR INCREASING d.
PRZR level GREATER THAN 54 [30< adverse CNMT]
3.
SECONDARY INTEGRITY CRITERIA IF any S/G pressure is decreasing in an uncontrolled manner or is completely depressurized AND has not been isolated, THEN go to E-2, FAULTED S/G ISOLATION, Step 1.
4.
COLD LEG RECIRCULATION SWITCHOVER CRITERION IF RWST level decreases to less than 284, THEN go to ES-1.3, TRANSFER TO COLD LEG RECIRCULATION, Step 1.
5.
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).
6.
E-3 TRANSITION CRITERIA IF any S/G level increases in an uncontrolled manner or any S/G has abnormal radiation, THEN go to E-3, STEAM GENERATOR TUBE RUPTURE, Step l.
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