ML13331B462
| ML13331B462 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 04/21/1989 |
| From: | SOUTHERN CALIFORNIA EDISON CO. |
| To: | |
| Shared Package | |
| ML13331B218 | List: |
| References | |
| S01-1.0-25, S1-1.0-25, NUDOCS 8911080034 | |
| Download: ML13331B462 (52) | |
Text
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1.0-25 UNIT1 REVISION 0 PAGE 1 OF 53 LOSS OF RECIRCULATION FLOW EFFECTIVE DATE APR 2 1 190 PURPOSE:
The purpose of this instruction is to provide corrective action should one or both recirculation trains fail following transfer to cold or hot leg recirculation for RCS and containment cooling.
ENTRY CONDITIONS:
- One qr both recirculation pumps NOT OPERABLE.
- One or both recirculation pump discharge MOVs fail to open.
S Cop~
ADVERSE CONTAINMENT CONDITIONS:
EOI information for adverse containment conditions, which are specified in brackets, should be used if either of the following conditions exist:
- 1) Containment radiation levels greater than 10' R/HR.
- 2) Contatnment pressure greater than 5 PSIG.
ATTACHMENTS:
- 2. Transfer BAST to RWST 43
- 3. Holdup Tank Transfer to RWST 47
- 4. Placing the TPCW System in Service 50
NUCLEAR GENERATION SITE EMERGFNCY OPERATING INSTRUCTION SO-1.0-25 UNIT 1 REVISION 0 PAGE 3 OF 53 LOSS OF RECIRCULATION FLOW STEP ----
ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED VERIFY Recirc Train Status:
- a. Verify only one recirc
- a. If NO recirc trains are train - OPERABLE.
- OPERABLE, THEN Go to step 10.
LE BOTH recirc trains are
- OPERABLE, IHE Go to procedure in effect.
2 VERIFY Operable Recirc Train Status:
- a. Ensure only one charging pump - RUNNING.
- b. Ensure only one refueling water pump - RUNNING.
- c. Override and close:
CV 517 and 518.
- d. Verify proper operation of the
- d. 1) Report pump conditions operable recirc train:
to the Technical Support Staff.
- 1) Flow and amps - STABLE.
- 2) Go to step 10.
- 2) Charging and refueling water pumps flow, amps, and discharge pressure STABLE.
- 3) Verify the associated recirc pump discharge valve OPEN:
MOV 866 A or B.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1.0-25 UNIT 1 REVISION 0 PAGE 4 OF 53',
LOSS OF RECIRCULATION FLOW NOTE:
The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN: Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
IF Charging pump THEN:
Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN: Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at'least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SO1-1.0-25 UNIT 1 REVISION 0 PAGE 5 OF 53 LOSS OF RECIRCULATION FLOW STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 3
INITIATE HP Survey:
- a. Direct a HP survey of the following backyard areas and determine stay times:
- 1) RWST area.
- 2) Boric acid batch room.
- 3) BAST area.
- 4) Lower level reactor auxiliary building.
4 REFILL RWST:
- a. Initiate refill of the RWST while continuing with this procedure.
- b.
Consult the TSC staff to determine appropriate source:
- 1) Unit 2/3 RWST via firehose and two 250 GPM fire truck pumps per ATTACHMENT 1.
- 2) Transfer BAST and water volume to RWST per ATTACHMENT 2.
- 3) Transfer radwaste holdup tanks to the RWST per ATTACHMENT 3.
- c. Record additions to RWST:
- 1) Amount of water added.
- 2) Amount of boron added.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SOI-1.0-25 UNIT 1 REVISION 0 PAGE 6 OF 53 LOSS OF RECIRCULATION FLOW NOTE: The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN: Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN: Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN: Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
ANQ RWST level 7%
IF Charging pump THEN:
Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
Ag
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level a 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN: Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1.0-25 UNIT I REVISION 0 PAGE 7 OF 53 LOSS OF RECIRCULATION FLOW STEP ----
ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 5
EVALUATE The Inoperable Recirc Train:
- a. Ensure the recirc pump
- a. 1) Verify "480 V ACS over in the inoperable train current TRIP" alarm RUNNING.
OFF (E-3).
- 2) Verify "480 V Ground" alarm - OFF (E-12).
- 3) Ensure the associated 480 V bus 1 or 2
- ENERGIZED.
- b. Verify proper operation of the
- b. 1) Stop the affected recirc pump in the inoperable recirc pump.
train:
- 2) Report pump conditions
- 1) Ensure the associated to the Technical recirc pump discharge Support Staff.
valve - OPEN:
- 3) Go to step 7.
MOV 866 A or B.
- 2) Verify pump flow and amps - STABLE.
6 VERIFY Recirc Train Status:
- a. Verify both recirc trains
- a. Go to step 7.
- OPERABLE.
- b.
Go to procedure in effect.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT 1 REVISION 0 PAGE 8 OF 53.
LOSS OF RECIRCULATION FLOW NOTE: The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
AND RWST level 7%
IF Charging pump THEN: Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level z 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN: Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTIOJ SO1-1.0-25 UNIT 1 REVISION 0 PAGE 9 OF 53 LOSS OF RECIRCULATION FLOW STEP ----
ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 7
CHECK Electrical Alignment Of Operable Recirc Train:
- a. Check running charging pump
- a. IE the other charging pump supplied by the same power is available, train as the running recirc pump.
THEN 1) Stop the refueling water pump.
- 2) Start the charging pump on that train.
- 3) Stop the other charging pump.
- 4) Start the refueling water pump on that same power train if required for -
- 5) Verify proper pump operation.
- 6)
Go to step 8.
- b. Check running refueling water
- b. LE the other refueling pump supplied by same power water pump is available, train as the running recirc pump.
IfEN
- 1) Stop the running refueling water pump.
- 2) Start the refueling water pump on the same train as the recirc pump if required for containment spray.
- 3) Verify proper pump operation.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT 1 REVISION 0 PAGE 10 OF 53 LOSS OF RECIRCULATION FLOW
. NOTE:
The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN: Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN: Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
RWST level 57%
IF Charging pump THEN: Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level Z 90%,
O8
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE E1ERGEJCY OPERATING INSTRUCTION S01-1.0-25 UNIT I REVISION 0 PAGE 11 OF 53 LOSS OF RECIRCULATION FLOW STEP ----
ACTION/EXPECTED
RESPONSE
RESPONSE NOT OBTAINED 8
INCREASE Containment Coolinq:
- a. Ensure at least one SEB supply and one exhaust cooling fan RUNNING.
- b. Check one TPCW pump
- b. Start one TPCW pump per
- RUNNING.
ATTACHMENT 4.
- c. Implement S01-4-25, VENTILATION SYSTEM OPERATIONS, and start the following containment air circulation equipment:
- 1. Containment air handling fans (A-1, 2, 3 and 4).
- 2. RCP heat removal fans (A-5, 5S, 6, 6S, 7 and 7S).
- 3. CROM fans (A-8, 8S, and 8SS).
- d. Slowly open RHR temperature controllers TCV 601 A and B to increase cooling-flow and not exceed 150'F CCW heat exchanger outlet temperature.
9 SUBSEOUENT Action:
- a. Go to procedure in effect.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1.0-25 UNIT 1 REVISION 0 PAGE 12 OF 53 LOSS OF RECIRCULATION FLOW NOTE: The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN:
Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
AND0 RWST level 7%
IF Charging pump THEN: Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
NQ
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1-.-25 UNIT 1 REVISION 0 PAGE 13 OF 53 LOSS OF RECIRCULATION FLOW STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: While a loss of recirc flow condition exists, this instruction should be carried out in conjunction with any RED or ORANGE path instruction required to be entered via the Critical Safety Function Status Trees.
10 VERIFY Loss Of Both Recirc Trains:
- a. Verify no recirc train
- a. Go to step 1.
- OPERABLE.
11 PERFORM Protective Actions:
- a. Stop both charging pumps.
- b. Stop both refueling water pumps.
0*
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT I REVISION 0 PAGE 14 OF 53 LOSS OF RECIRCULATION FLOW NOTE:
The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF - Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
RWST level <7%
IF Charging pump THEN:
Return suction to RWST:
suction is aligned
,to the SFP
- 1) Ensure MOV 883 OPEN.
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SO1-'.0-25 UNIT 1 REVISION 0 PAGE 15 OF 53 LOSS OF RECIRCULATION FLOW STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 12 ATTEMPT To Place One Recirc Train In Service:
- a. Ensure one recirc pump
- a. 1) Continue attempts to
- RUNNING.
restore at least one recirc train while con tinuing with this procedure.
- 2) Go to step 13.
- b. Ensure associated recirc
- b. 1) Stop the running recirc pump discharge valve pump.
OPEN:
- 2) Ensure other recirc MOV 866 A or B.
pump-RUNNING.
- 3) Ensure associated recirc pump discharge valve
- OPEN:
MOV 866 A or B.
- c. Verify at least one recirc
- c. 1) Continue attempts to train - OPERABLE.
restore at least one recirc train while con tinuing with this procedure.
- 2) Go to step 13.
- d. Go to procedure in effect and continue implementing this procedure at step 1.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION O1-.0-25 UNIT 1 REVISION 0 PAGE 16 OF 53' LOSS OF RECIRCULATION FLOW NOTE: The.following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
AND RWST level <7%
IF Charging pump THEN: Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN: Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTTUCTICi S01-1.0-25 UNIT 1 REVISION 0 PAGE 17 OF 53 LOSS OF RECIRCULATION FLOW STEP----
ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 13 INITIATE HP Survey:
- a. Direct a HP survey of the following backyard areas and determine stay times:
- 1) RWST area.
- 2) Boric acid batch room.
- 3) BAST area.
- 4) Lower level reactor auxiliary building.
14 REFILL RWST:
- a. Initiate refill of the RWST while continuing with this procedure.
- b. Consult the TSC staff to determine appropriate source:
- 1) Unit 2/3 RWST via firehose and two 250 GPM fire truck pumps per ATTACHMENT 1.
- 2) Transfer BAST and water volume to RWST per ATTACHMENT 2.
- 3) Transfer radwaste holdup tanks to the RWST per ATTACHMENT 3.
- c. Record additions to RWST:
- 1) Amount of water added.
- 2) Amount of boron added.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SOI-1.0-25 UNIT I REVISION 0 PAGE 18 OF 53 LOSS OF RECIRCULATION FLOW NOTE:
The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN: Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN: Reset containment spray
10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING-flow.
RWST/SFP IF Charging pump suction THEN:
Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
RWST level <7%
IF Charging pump THEN: Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
ND
- 2) -Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SOl0-0F25 UNTIREVISION 0
PAGE 21 OF 53 LOSS OF RECIRCULATION FLOW STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 16 START Indection Pump:
- a. Close RCP seal flow controllers:
FC 1115 A, 8, and C.
- b. Close normal charging valves:
FCV 1112 and CV 304.
- c.
Start one charging pump.
- c. jE no charging pump
- RUNNING, THEN establish lineup for injection flow using a refueling water pump:
- 1) Open MOV 880.
- 2) Ensure CV 82 and 114 - CLOSED.
Close alternate hot leg injection valve:
CRS 341.
- 4) Ensure one refueling water pump -
RUNNING.
- 5) Open MOV 18 and 19.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1.0-25 UNIT I REVISION 0 PAGE 22 OF 53 LOSS OF RECIRCULATION FLOW NOTE: The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN:
Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
AND0 RWST level <7%
IF Charging pump THEN:
Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level Z 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN: Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT 1 REVISION 0 PAGE 23 OF 53 LOSS OF RECIRCULATION FLOW STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION mass===
To avoid potential damage to the charging pumps, do not exceed total charging flow of 300 GPM with charging pump suction aligned to the RWST or 220 GPM with charging pump suction aligned to the SFP.
17 ESTABLISH Cold Leg Injection:
- a. Check LESS THAN five hours
- a. Go to step 18.
have elapsed after LOCA.
- b. Throttle RCP seal supply
- b. IE unable to establish flow controllers to obtain due to loss of instru approximately 300 GPM ment air, total flow (220 GPM IF SUCTION ALIGNED TO SPENT FUEL POOL]:
THEN position backup nitrocen supply for each con 100 GPM PER LINE for three troller IN SERVICE as injection lines (70 GPM IF follows:
SUCTION ALIGNED TO SPENT FUEL POOL],
- 1) Position aux nitroaen supply switch to ON.
- 2) Position aux positioni 150 GPM PER LINE for two control switch to ONI injection lines (110 GPM IF SUCTION ALIGNED TO SPENT FUEL
- 3) Position aux con POOL].
troller to obtain desired flow.
- c. Go to step 20.
2)Psto0axpsto
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCT!ON S01-1.0-25 UNIT 1 REVISION 0 PAGE 24 OF 53 LOSS OF RECIRCULATION FLOW NOTE: The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN: Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN: Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
RWST level <7%
IF Charging pump THEN: Return suction to RWST:
suction is aligned
.to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps I through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLE R GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT 1 REVISION 0 PAGE 25 OF 53 LOSS OF RECIRCULATION FLOW STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 18 REDUCE Cold Leg Iniection Flow:
- a. Check LESS THAN 19 hours2.199074e-4 days <br />0.00528 hours <br />3.141534e-5 weeks <br />7.2295e-6 months <br />
- a. Go to step 19.
have elapsed after LOCA.
- b. Throttle RCP seal supply flow controllers to obtain approximately 210 GPM total flow:
70 GPM PER LINE for three injection lines, 105 GPM PER LINE for two injection lines.
- c. Go to step 20.
01
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION O-1.0-25 UNIT 1 REVISION 0
-PAGE 26 OF 53' LOSS OF RECIRCULATION FLOW NOTE:
The.following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN: Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN: Trip all coarging and ALIGNMENT is aligned to the RNST refueling water pumps CRITERIA and go to step 15.
RWST level <7%
IF Charging pump THEN: Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN: Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT 1 REVISION 0 PAGE 27 OF 53 LOSS OF RECIRCULATION FLOW STEP---
ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 19 ESTABLISH Hot Leg Iniection Nineteen Hours After LOCA:
- a. Reduce cold leg injection flow:
- 1) Throttle RCP seal supply flow controllers to obtain approximately 105 GPM:
35 GPM PER LINE for three injection lines, OR 50 GPM PER LINE for two injection lines.
- b. Establish hot leg injection
- b. If hot leg injection flow flow:
is NOT ESTABLISHED,
- 1) Position charging THEN Throttle RCP seal valve CV 304 - CLOSED.
supply flow con trollers to.obtain
- 2) Position auxiliary spray approximately 210 GPM valve CV 305 OPEN.
total flow:
- 3) Position pressurizer spray 70 GPM PER LINE for valves - CLOSED:
three injection
- lines, CV 430C and 430H.
- 4) Throttle FCV 1112 to establish 110 GPM 105 GPM PER LINE for (FI 1112).
two injection lines.
- 5) Verify charging valve CV 304 vREMAINS CLOSED.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1.0-25 UNIT 1 REVISION 0 PAGE 28 OF 53' LOSS OF RECIRCULATION FLOW NOTE: The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN:
Trip all charging and ALIGNMENT is aligned to the RWST.
refueling water pumps CRITERIA and go to step 15.
RWST level 7%
IF Charging pump THEN:
Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT 1 REVISION 0 PAGE 29 OF 53 LOSS OF RECIRCULATION FLOW STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 20 INCREASE Containment Coolinq:
- a. Ensure at least one SEB supply and one exhaust cooling fan RUNNING.
- b. Check one TPCW pump
- b. Start one TPCW pump per
- RUNNING.
ATTACHMENT 4.
- c.
Implement S01-4-25, VENTILATION SYSTEM OPERATIONS, and start the following containment air circulation equipment:
- 1. Containment air handling fans. (A-1, 2, 3 and 4).
- 2. RCP heat removal fans (A-5, 5S, 6, 6S, 7 and 75).
- 3. CRDM fans (A-8, 8S, and 8SS).
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION O-1.0-25 UNIT 1 REVISION 0 PAGE 30 OF 53 LOSS OF RECIRCULATION FLOW NOTE:
The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN: Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP If Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
RWST level 7%
IF Charging pump THEN:
Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
At
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN: Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT 1 REVISION 0 PAGE 31 OF 53 LOSS OF RECIRCULATION FLOW STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION RHR system valves should be open prior to containment water level exceeding GRADE PLUS 4 FEET due to environmental qualification concerns.
NOTE: The initial RHR system in-service temperature of 350*F does not apply for this instruction.
21 ENSURE Status Of RHR Valves:
- a. Ensure MOV 822 A and B - OPEN.
- b.
Locally ensure breakers -OPEN:
42-1164 for MOV 822 A.
42-1266 for MOV 822 B.
- c. Check RCS pressure
associated block valve OPEN.
- 2)
Go to step 22.
- d. Ensure RHR system valves
-OPEN:
MOV 813, 814, 833, and 834.
- e. Locally open breakers:
42-1169 for MOV 813.
42-1271 for MOV 814.
42-1170 for MOV 833.
42-1272 for MOV 834.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SO1-1.0-25 UNIT 1 REVISION 0 PAGE 32 OF 53 LOSS OF RECIRCULATION FLOW NOTE: The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
RWST level <7%
IF. Charging pump THEN:
Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level Z 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT I REVISION 0 PAGE 33 OF 53 LOSS OF RECIRCULATION FLOW
-STEP ----
ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 22 MONITOR RWST Level:
- a. Ensure makeup to RWST from sources in step 14.
- b. Check charging pump suction
- APPROACHING 28 FEET, FUEL POOL.
IHER transfer charging pump suction to RWST:
- 1) Open MOV 883.
- 2) Locally close spent fuel pool low suction valve SFP 301.
23 COMMENCE RCS And SG Cooldown:
- a. Check.steam header pressure
- a. Go to step 24.
GREATER THAN ZERO PSIG.
- b. Open steam dump valves to achieve a 25'F/HR RCS cooldown rate.
- c. Maintain SG levels
- APPROXIMATELY 275 INCHES
[302 INCHES].
24 CHECK If RHR Can Be Placed In Service:
- a. Check containment water level
- GREATER THAN GRADE PLUS 9.5 FEET:
LI 2002 0R 3002.
- b. Check total containment water
- b. Return to step 17.
inventory - GREATER THAN 700,000 GALLONS.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION4 SO1-1.0-25 UNIT I REVISION 0 PAGE 34 OF 53 LOSS OF RECIRCULATION FLOW NOTE:
The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN: Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN:
Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
RWST level <7%
IF Charging pump THEN:
Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT I REVISION 0 PAGE 35 OF 53 LOSS OF RECIRCULATION FLOW
-STEP --
ACTION/EXPECTED
RESPONSE
-RESPONSE NOT OBTAINED 25 ESTABLISH RHR In Service:
- a. Ensure RHR cooling water systems are operating:
- 1) Two salt water cooling pumps - RUNNING.
- 2) Three CCW pumps - RUNNING.
- b. Position RHR heat exchanger temperature controllers in MANUAL, SET AT 30% OPEN:
TCV 601 A.
TCV 601 B.
- c.
Close CV 525 and 526.
- d. Ensure RHR system valves - OPEN:
MOV 813, 814, 833, and 834.
42-1271 for MOV 814.
42-1170 for MOV 833.
42-1272 for MOV 834.
- f. Start one RHR pump.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1.0-25 UNIT 1 REVISION 0 PAGE 36 OF 53 LOSS OF RECIRCULATION FLOW NOTE: The following steps are always applicable:I CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN: Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWSTSFP IF Charging pump suction THEN:
Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
RWST level <7%
IF Charging pump THEN: Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level k 90.
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SO1-1.0-25 UNIT 1 REVISION 0 PAGE 37 OF 53 LOSS OF RECIRCULATION FLOW STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 26 VERIFY RHR PumD Operation:
- a. Verify RHR pump flow and
- a. Throttle HCV 602 as amps -STABLE.
necessary to stabilize flow and amps.
.ERfIR pump flow and amps apNOT STABLE, 2T SP1) Stop the RHR pump.
- 2) Consult the Technical' Support Staff and remain at this step until directed to start a RHR pump.
27 START Second RHR PumD:,
- b. Verify RHR flow
- b. Go to step 28.
- GREATER THAN 800 GPM.
- c. Start the second RHR pump if available as required for cooledown.
- d. VerifyIRHR pump flow and
- d. Stop the second RHR pump.
amps STABLE.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT I REVISION 0 PAGE 38 OF 53 LOSS OF RECIRCULATION FLOW NOTE:
The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN: Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN: Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
RWST level <7%
IF Charging pump THEN: Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level > 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN:
Implement the remaining 0
steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0.25 UNIT 1 REVISION 0 PAGE 39 OF 53 LOSS OF RECIRCULATION FLOW STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 28 CHECK If RCS Injection Flow Can Be StoDped:
- a. Check core exit TCs trending
- a. 1) Continue RCS injection.
down with RCS loop and RHR temperatures.
- 2) Consult the Technical Support Staff and remain at this step.
- b. Secure RCS injection flow:
- 1) Close RCP seal flow controllers:
FC 1115 A, B, and C.
- 2) Ensure charging flow control valve - CLOSED:
FCV 1112.
- 3) Stop all charging and refueling water pumps.
29 CHECK If One RHR Pump Can Be Stopoed:
- a. Verify two RHR pumps
- a. Go to step 30.
RUNNING.
- b. Check RCS temperature
- b. Go to step 30.
LESS THAN 200*F.
- c. Stop one RHR pump.
- d. Verify RCS temperature
- d. Start second RHR pump.
STABLE OR DECREASING.
30 SUBSEQUENT Action:
- a. Continue operating RHR system as directed by the Technical Support Staff.
- b. Return to procedure in effect.
-END 1-0-25.cln
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SO1-1.0-25 UNIT 1 REVISION 0 PAGE 40 OF 51.
LOSS OF RECIRCULATION FLOW NOTE: The following steps are always applicable:
CONTAINMENT IF Containment pressure THEN:
Ensure containment spray SPRAY
>10 PSIG and charging initiated.
pump suction aligned to RWST IF Containment pressure THEN:
Establish containment
>10 PSIG and charging spray via hose manifold pump suction aligned connection per step 6 of to SFP.
IF Containment pressure THEN:
Reset containment spray
<5 PSIG AND STABLE signal and secure spray OR DECREASING flow.
RWST/SFP IF Charging pump suction THEN: Trip all charging and ALIGNMENT is aligned to the RWST refueling water pumps CRITERIA and go to step 15.
RWST level <7%
IF Charging pump THEN: Return suction to RWST:
suction is aligned to the SFP
- 1) Ensure MOV 883 OPEN.
AND
- 2) Ensure SFP 301 CLOSED.
- 1) RWST level Z 90%,
- 2) SFP is approaching 28 feet (130,000 gallons supplied)
LOSS OF IF During performance of THEN:
Go to step 10.
RECIRCULATION steps 1 through 9, both trains of recirculation fail IF During performance of THEN: Implement the remaining steps 10 through 30, steps of this procedure at least one train of as needed and return to recirculation is step 1.
restored.
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT 1 REVISION 0 PAGE 41 OF 53 LOSS OF RECIRCULATION FLOW EXECUTIVE
SUMMARY
LOSS OF ONE RECIRC TRAIN
> 1. Verify Recirc Train Status
>Procedure In Effect
- 2. Verify Operable Recirc Train Status EVALUATION AND CONTINGENCY ACTIONS
- 3. -jnit ate HP Survey
- 4. efi11 RWST
- 5. va uate The Inoperable Recirc Train 6
Verify Recirq Train Status
>Procedure In Effect
- 7.
Check Electrical Alignment Of Operable Recirc Train
- 8. Increase ontainment Cooling
- 9.
Subsequent Action
>Procedure In Effect VERIFY NO RECIRC TRAINS OPERABLE
> 10.
Verify Loss Of Both Recirc Trains
- 11.
Perform Protective Actions RESTORATION AND CONTINGENCY ACTIONS
- 12.
Attempt To Place One Recirc Train In Service 3 S H Survey ESTABLISH INJECTION FLOW Align injection Pump Suction 1.Start Ingection Pumo
>17.
Establi Cold Lq.Injqcti*?o
- 18.
educe nd Le aectioneFlow
- 19.
Establi Hot eg njection Nineteen Hours After LO A COOLDOWN AND PLACE RHR IN SERVICE
- 20.
Increase Containment Cooling
- 21.
Ensure Status Of RHR Valves
- 22.
Monitor RWLeel
- 23.
- 24. Ch c; Rf R Can Be Placed In Service
- 25.
Esalis 10 R In Service 26 Veri y MR Pumn 0oeration 2.Start Scond RHR Pump 28 Check f RCS Inecion Flow Can Be Stopped eck f One H
ump Can Be Stopped TRANSITION DETERMINATION
- 30.
Subsequent Action LProcedure In Effect
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SO1-1.0-25 UNIT 1 REVISION 0 PAGE 42 OF 53 LOSS OF RECIRCULATION FLOW ATTACHMENT 1I TRANSFER UNIT 2/3 RWST TO UNIT 1 RWST 1.0 Request the Emergency Coordinator to direct the Unit 2/3 Plant Superintendent to shutdown and cooldown either of the units.
2.0 Direct Maintenance to make preparations to rig the needed fire hoses from the selected Unit 2/3 RWST:
2.1 Ten lengths of 2.5 inch hard rubber fire hose from each manual drain of the selected Unit 2/3 RWST to the suction of the seismic firewater truck's 250 GPM pump.
2.2 2000 feet of 2.5 inch canvas fire hose from the fire truck pumps to the feed pump area of the Unit 1 turbine building.
2.3 Coupling and flanges to connect the fire hose to:
- a. Each Unit 2/3 RWST lock-closed manual drain valve (labeled 3"-075-C-212 on drawing 401228).
- b. The 3 inch flanges downstream of CV 875 A and B.
3.0 Direct Emergency Services to position the firewater trucks and to assist in rigging the fire hose.
4.0 When the transfer equipment is installed:
4.1 Open the selected RWST drain valve(s).
4.2 Start the firewater truck pumps.
4.3 Verify delivery to the Unit 1 RWST at the maximum possible RCS injection rate.
4.4 Ensure that the Tech Spec RWST level of 368,000 gallons remains in the Unit 2/3 RWST until authorized to go below this value by the Unit 2/3 Shift Superintendent.
4.5 Batch boric acid to the selected Unit 2/3 RWST as needed.
5.0 When the selected Unit is in Mode 3 and technical specification LCO 3.5.4 entrance has been documented, commence pumping the RWST below the tech spec required level of 368,000 gallons.
6.0 Additional flow may be directed to the Unit 1 containment spray header via the hose manifold located near the Unit I west AFW pump.
Record total spray flow and boron concentration.
ATTACHMENT 1 PAGE 1 OF 1
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SOI-1.0-25 UNIT 1 REVISION 0 PAGE 43 OF 53 LOSS OF RECIRCULATION FLOW ATTACHMENT 2 TRANSFER BAST TO RWST 1.0 Calculate Amount of Primary Makeup Water.
1.1 Record BAST Tevel %, (LR 1108):
1.2 Multiply BAST % level by 60 Gal/% BAST and by 5, the dilution factor:
BAST% x 60 Gal x 5 Gal of PMU step 1.1
% BAST 1.3 Record PMU level (PI 157):
ft 1.4 Calculate final PMU tank level corresponding to PMU gallons calculated in step 1.2:
1.4.1
+
150 GPM =
minutes required to pump step 1.2 -
PMU tank 1.4.2
+ 5300 Gal -
ft total drop required in step 1.2 Ft PMU tank 1.4.3 ft PMU tank final level step 1.3 step 1.4.2 1.5 The final concentration of RWST is expected to be approximately 4000 PPM.
1.5.1 Direct chemistry to sample the RWST, or the charging pump sample line when on RWST suction to verify boron concentration.
2.0 Fill the RWST with primary makeup water (in the RWST area).
2.1 CLOSE CRS 393, RWST primary makeup fill line drain valve.
2.2 CLOSE CRS 395, RWST primary makeup telltale drain valve to the refueling water pump base drain.
2.3 OPEN CRS 392, primary makeup water to RWST two turns until second PMU pump starts and maintain -100 PSIG discharge pressure.
3.0 OPEN CRS 389, boric acid to RWST (located on the 1 inch fill line at RWST) to fill the RWST from the boric acid system.
ATTACHMENT 2 PAGE 1 OF 4
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1.0-25 UNIT 1 REVISION 0 PAGE 44 OF 53 LOSS OF RECIRCULATION FLOW ATTACHMENT2 TRANSFER BAST TO RWST 4.0 In upper Radwaste area, preheat the RWST fill line using water from the boric acid batch tank:
4.1 VERIFY CLOSED or CLOSE CV 334, boric acid storage tank supply to the charging pump suction header.
4.2 VERIFY CLOSED or CLOSE CV 333, boric acid storage tank recirculation valve.
4.3 CLOSE BAS 305, boric acid storage tank to south transfer pump.
4.4 VERIFY CLOSED BAS 310, boric acid transfer pump suction crosstie.
4.5 OPEN BAS 359, boric acid system to RWST.
4.6 OPEN BAS 322, boric acid batch tank lower suction.
4.7 START the south boric acid transfer pump.
4.8 STOP the south boric acid transfer pump after approximately 6 inches have been pumped from the boric acid batch tank as indicated on LI-1110.
NOTE:
While filling the RWST with primary water, step 2.0 may be done concurrently with step 5.0.
5.0 Transfer all the contents from the boric acid storage tank to the RWST as follows:
5.1 CLOSE BAS 315, boric acid transfer pump discharge crosstie.
5.2 START the north boric acid transfer pump from the control room.
5.3 STOP the north boric acid transfer pump at the -1% level as monitored on LR-1108, boric acid storage tank level recorder.
At 45 GPM, it will take between 90 and 140 minutes to empty the BAST.
ATTACHMENT 2 PAGE 2 OF 41
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.-25 UNIT 1 REVISION 0 PAGE 45 OF 53 LOSS OF RECIRCULATION FLOW ATACHENT 2 TRANSFER BAST TO RWST 6.0 Refill the boric acid batch tank and boric acid storage tank per 501-4-14, BORIC ACID BATCHING, as dose rates allow.
7.0 Stop PMU flow to the RWST when the final PMU tank level is reached (step 1.4.3):
7.1 Local valve operation:
7.1.1 CLOSE CRS 392, primary makeup water to RWST.
7.1.2 OPEN CRS 393, RWST primary makeup line drain valve.
7.1.3 OPEN CRS 395, RWST primary makeup telltale drain valve to the refueling water pump base drain.
7.2 Remote method for ALARA consideration:
7.2.1 STOP both PMU pumps if PM water is not needed for other functions.
8.0 Upon completion of boric acid transfer:
8.1 Flush the boric acid supply line to the RWST:
- 8.1.1 OPEN BAS 315, boric acid transfer pump discharge crosstie.
8.1.2 START the south boric acid transfer pump.
8.1.3 STOP the south boric acid transfer pump after approximately 6 inches have been pumped from the boric acid batch tank as as indicated on LI-1110.
ATTACHMENT 2 PAGE 3 OF 4
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION 501-1.0-25 UNIT 1 REVISION 0 PAGE 46 OF 53 LOSS OF RECIRCULATION FLOW ATTACHMENT 2 TRANSFER BAST TO RWST 8.2 Realign the RWST and south boric acid transfer pump:
8.2.1 CLOSE BAS 359, boric acid system to RWST.
8.2.2 CLOSE BAS 322, boric acid batch tank lower suction.
8.2.3 OPEN BAS 305, boric acid storage tank to south transfer pump.
8.2.4 CLOSE CRS 389, boric acid to RWST.
8.3 If needed, refill the batch tank with primary makeup water.
8.3.1 OPEN BAS 320, primary makeup water to the batch tank..
8.3.2 Fill the batch tank to i43 inches level as indicated on LI-1110.
8.3.3 CLOSE BAS 320, primary makeup water to the batch tank.
ATTACHMENT 2 PAGE 4 OF 41
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SO1-1.0-25 UNIT I REVISION 0 PAGE 47 OF 53 LOSS OF RECIRCULATION FLOW
=ATTACHMENT 3 HOLDUP TANK TRANSFER TO RWST 1.0 Using chemistry results and Chemistry Leader's recommendation circle the holdup tanks selected to be transferred to the RWST:
1.1 East Holdup Tank 2400 level Est. gal.
1.2 C e n t e r H o l d u p T a n k 2 4 0 0 _ l e v e
_ s t._ g a l 2400 1ee UN. -gal.
1.3 West Holdup Tank 2400 level Est. gal.
2.0 Record present holdup tank levels and gallons:
2.1 East Holdup Tank LI-7 Est. gal.
2.2 Center Holdup Tank
_______57 LITd Est. gal.
2.3 West Holdup Tank LI-9 Est. gal.
3.0 Align selected holdup tanks to the circulating pump:
East HUT Center HUT West HUT 3.1 OPEN:
RLC 438 RLC 436 RLC 437 Circulating pump mini-flow to holdup tanks.
3.2 OPEN:
RLC 430 RLC 426 RLC 427 Circulating pump discharge to holdup tank inlets.
3.3 OPEN: RLC 390 RLC 395 RLC 391 Holdup tank inlets from flash tank pump.
3.4 CLOSE
RLC 392, RLC 397 RLC 393 Holdup tank bottom fill valves.
ATTACHMENT 3 PAGE 1 OF 3
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTIOUN 501-1;0-25 UNIT 1 REVISION 0 PAGE 48 OF 53 LOSS OF RECIRCULATION FLOW ATTACHMENT 3 HOLDUP TANK TRANSFER TO RWST (Continued)
East HUT Center..HUI West U
3.5 CLOSE
RLC 432 RLC 433 RLC 429 Holdup tank top fill valves.
3.6 CLOSE
RLC 448 RLC 449 RLC 451 Holdup tank inlet header drain to aux bldg sump.
3.7 OPEN:
RLC 412 RLC 413 RLC 415 Holdup tank outlet valves to the circulating pump suction.
3.8 START the HUT circulating pump.
4.0 Align selected holdup tanks to the holdup pumps:
NOTE:
Holdup tank pumps are rated at 50 GPM each and this step may be omitted for ALARA considerations if the additional flowrate is not required.
NOTE:
Holdup tank pumps have low level trips and should be selected to tanks with the lowest levels.
East HUT Center HUT West HUT 4.1 OPEN:
RLC 402 RLC 403 RLC 405 Holdup tank outlet valves to the holdup pump suction.
4.2 OPEN RLC 410 to east HUT pump and RLC 411 to west HUT pump if the center holdup tank is selected.
4.3 OPEN RLC 422, east HUT pump mini-flow and RLC 423, west HUT pump mini-flow.
4.4 OPEN RLC 418, east HUT pump and RLC 419, west HUT pump discharge to radwaste ion exchangers.
4.5 CLOSE RLC 424, east HUT pump and RLC 425, west HUT pump discharge to spent resin system.
4.6 START the selected holdup tank pumps.
ATTACHMENT 3 PAGE 2 OF 31
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUETION SOI-1.U-25 UNIT 1 REVISION 0 PAGE 49 OF 53 LOSS OF RECIRCULATION FLOW ATTACHMENT 3]
HOLDUP TANK TRANSFER TO RWST (Continued) 4.7 Close RWL 323, CV 111 outlet block valve, to preclude discharge to the ocean during holdup tank pump operation.
4.8 OPEN RWL 501, FT-5 outlet to ion exchangers, in the charging pump room.
5.0 Bypass the radwaste ion exchangers:
5.1 OPEN RLC 360, CV 139 bypass to holdup tanks.
5.2 OPEN RLC 378, CV 139 inlet block valve.
5.3 OPEN RLC 371, radwaste ion exchanger return to flash tank discharge.
5.4 OPEN RWL 536, A ion exchanger discharge.
5.5 OPEN RWL 532, A ion exchanger discharge to 8 ion exchanger inlet.
5.6 OPEN RWL 503, B ion exchanger tWlet.
5.7 OPEN RWL 540, radwaste ion exchanger return to RWST and SFP.
6.0 Verify valve alignment:
6.1 VERIFY CLOSED RWL 421, gas stripper inlet.
6.2 VERIFY CLOSED RWL 42-3 gas stripper bypass.
6.3 VERIFY CLOSED RWL 564, ion exchanger to resin flush header.
7.0 At the RWST area:
7.1 OPEN CRS 391, RWST inlet from liquid radwaste.
7.2 VERIFY CLOSED CRS 344, charging pump mini-flow to RWST.
If the charging pump mini-flow is in use, leave the valve open and notify the Shift Superintendent.
8.0 Locally stop HUT circulation pump when no longer needed to transfer holdup tanks to the RWST.
ATTACHMENT 3 PAGE 3 OF 3
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SO1-1.0-25 UNIT 1 REVISION 0 PAGE 50 OF 53 LOSS OF RECIRCULATION FLOW ATTACHMENT 4 PLACING THE TPCW SYSTEM IN SERVICE 1.0 Align TPCW system:
1.1 OPEN or CHECK OPEN TCW 301 (TCW 302), the selected turbine plant cooling water pump suction.
1.2 Isolate the following major equipment:
CAUTION Starting a TPCW pump with these large inlet valves open may cause damage from water hammer.
1.2.1 CLOSE TCW 395 and TCW 396, turbine lube oil coolers inlet.
1.2.2 CLOSE TCW 303, TCW 304, TCW 305 and TCW 306, generator hydrogen coolers inlet.
1.3 Establish maximum saltwater cooling to the south (north) TPCW heat exchanger as follows:
1.3.1. OPEN CWS 531 (CWS 530), the saltwater inlet to admit saltwater from the circ pumps or the saltwater pumps (via SWC 308).
1.3.2 Prime the saltwater side of the heat exchanger.
1.3.3 Throttle CWS 533 (CWS 532), the saltwater outlet valve, to provide sufficient cooling and maintain the heat exchanger full.
ATTACHMENT 4 PAGE 1 OF 3
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1.0-25 UNIT 1 REVISION 0 PAGE 51 OF 53 LOSS OF RECIRCULATION FLOW ATTACHMENT 4 PLACING THE TPCW SYSTEM IN SERVICE (Continued) 1.4 Position the following TPCW valves to minimize water hammer after starting the TPCW pump:
1.4.1 CLOSE ISA 894 (ISA 893), air to the POV of the south (north) TPCW pump.
1.4.2 CLOSE TCW 338, stop-check valve upstream of CV 516 block valve (above the auxiliary cooler in the cable tray).
1.4.3 Ensure OPEN CV 515 and 516, TPCW containment isolation valves.
2.0 Start TPCW pump:
2.1 START the south (north) TPCW pump.
2.2 Throttle TCW 309 (TCW 310), south (north) TPCW pump seal supply, to maintain 10 to 12 PSIG.
2.3 CRACK OPEN ISA 894 (ISA 893), the air supply to the POV and and attempt to slowly load the TPCW system.
2.4 When the POV is fully open, OPEN ISA 894 (ISA 893).
2.5 SLOWLY OPEN TCW 338, to allow containment coolers to fill.
2.6 Monitor TPCW tank level for trend.
ATTACHMENT 4 PAGE 2 OF 3
NUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION S01-1.0-25 UNIT 1 REVISION 0 PAGE 52 OF 53 LOSS OF RECIRCULATION FLOW ATTACHMENT 4 PLACING THE TPCW SYSTEM IN SERVICE (Continued) 3.0 Place the remaining TPCW pump and heat exchanger in standby as follows if dose rates permit:
3.1 If the turbine plant cooling water pump or heat exchanger is drained, then fill and vent.
3.2 OPEN or CHECK OPEN TCW 301 (TCW 302), the selected turbine plant cooling water pump suction.
3.3 Establish saltwater cooling to the south (north) TPCW heat exchanger as follows:
3.3.1 OPEN CWS 531 (CWS 530), saltwater inlet to admit saltwater from the circ pumps or the saltwater pumps.
3.3.2 Evacuate the saltwater side of the heat exchanger us step 6.4 of this procedure.
3.4 OPEN ISA 894 (ISA 893), air supply to the POV.
3.5 Place the pump control switch in AUTO.
3.6 CHECK CLOSED CWS 533 (CWS 532), the saltwater outlet valve of the standby TPCW heat exchanger.
ATTACHMENT 4 PAGE 3 OF 3
NIUCLEAR GENERATION SITE EMERGENCY OPERATING INSTRUCTION SO1-1.O-25 UNIT 1 REVISION 0 PAGE 53 OF 53 LOSS OF RECIRCULATION FLOW ATTACHMENT 5 SFP ALIGNMENT TO CHARGING PUMP SUCTION CAUTION Charging flow from the SFP suction has a NPSH limit of 220 GPM.
CAUTION Below 28'O SFP level air will enter the charging PUMP suction.
1.0 Align charging pump suction from spent fuel pool:
1.1 Close MOV 883.
1.2 Ensure spent fuel pool (SFP) anti-siphon cap installed.
1.3 When directed from the Control Room, operate the following valves:
1.3.1 OPEN SFP 301, SFP low suction.
1.3.2 CLOSE SFP 330, SFP high suction.
1.3.3 STOP spent fuel pool cool-ing pump.
1.3.4 CLOSE SFP 331, SPF cooling pump suction.
1.3.5 Unlock and OPEN CRS 426, SFP to MOV 1100 B-and 0.
1.3.6 VERIFY OPEN CRS 425, RWST to MOV 1100 B and D.
0 ATTACHMENT 5 PAGE 1 OF 1