ML20205S772
| ML20205S772 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 04/08/1988 |
| From: | Bishop E CAROLINA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20205K904 | List:
|
| References | |
| EOP-01-ACCP, EOP-1-ACCP, NUDOCS 8811110170 | |
| Download: ML20205S772 (37) | |
Text
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g CAROLINA POWER & LICHT COMPANY BRUNSWICK STEAM ELECTRIC PLANT UNIT 0 ATVS - CONTAINMENT CONTROL PROCEDURE ,
EMERGENCY OPERATING PROCEDURE: E0P-01-ACCP VOLUME VI Rev. 006 FOR INFOeantactMuss,et ONLY.ce N tests,tun t ms,dxu M:tiot< est$torerfxmmahtsaan ,
carate or r: Mpg!ste hr(ts. ptet ap o mote ct i.rp!setet desip t Approved By: de /f d Date T Cent ra1 I I
"/ Manager-Qanager/
Operations Page i of 37 8811110170 0B1025 DR ADOC'A OOg4 [
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- l. LIST OF EFFECTIVE PAGES I
l R "-01-ACCP Pate (s) Revision 1-2 6 l
3-4 4 5 5 l
6 6 7-8 4
! 9 6 l
10 5 i 11 6 12 4 13 6
{ 14-16 4 l
17 _
6 18 5 19 6 20 5 21 6 l
22 5 3
{ 23-27 6 28 5 l 29 4 30 5 31 4 32 5 33-34 4 35 5
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BSEP/Vol. VI/E0P-01-ACCP Page 2 of 37 Rev. 6
e A. TITLE - ATVS Containment Control Procedure (ACCP)
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SUPPRESSION P001. TEMPERATt'RE E0P-01-ACCP-SPT i
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a0 i:. i SJDPRESS ON POOL w ATER TEuPERATURE IS DETERV NED BY:
C AC-TY- 442C - t t Q3 CAC-TY-4426-2 i
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FIGt'RE 1. SP/T '
BSEP/Vol. VI/E0P-01-ACCP Page 5 of 37 Rev. 5 l
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e A. TITLE - Suppression Pool Temperature Control (SP/T)
B. ENTRY CONDITION Suppression pool temperature is above 95'F.
C. OPERATOR ACTIONS e*****enanana*********** nee ****n**********************************ma****aana** ,
CAUTION OBSERVE NPSH requirements for pumps taking suction from the suppression pool.
IF continuous LPCI operation is required to assure adequate core coolingt ;
DO NOT DIVERT all RHR pumps for the LPCI mode. '
menen***eene**naanne*******ee******ne*********aa********ea***eena******mana***
- 2. IT service water is NOT avtilable to the RHR heat exchangers. THEN available RHR loops should be used co recirculate the suppression i pool to minimize local temperature differences.
3., LOG suppression temperature at thirty-minute intervals and VERIFY it to be less than or equal to 120'F. ;
- 4. 1F suppression pool temperature reaches 120*F. THEN COMMENCE a reactor cooliown at normal cooldown rates UNTIL reactor pressure is less than 200 psig.
- 5. IF suppression pool temperature CANNOT be maintained in the "SAFE" region of the Heat Capscity Temperature Limit graph (see Figure 1 SP/T). THEN MAINTAIN reactor pressure in the "SAFE" region.
- 6. IT suppression pool temperature AND reactor pressure CANNOT be l r".Jtored and maintained in the "SAFE" region of the Heat capacity ;
Temperature Limit graph (see Tigure 1. SP/T). THEN retctor depressurization is required. DEPRESSURIZE the reactor per the '
following steps
- a. IF the "Level / Power Control" flowpatn is being executed.
THEN DEPRESSURIZE the reactor per the "Level / Power Control" ,
flewpa'h (coordinate 3-E).
- b. IF the "Level / Power Control" flowpath is NOT being executed. l THEN DEPRESSURIZE the reactor per the "End Path Procedure."
- 7. IF suppression pool temperature reaches 160'F. THEN CONSULT f Yechnical Specifications for actions required prior to startup. }
6 i
BSEP/Vol. VI/EOP-01-ACCP Page 6 of 37 Rev. 6 f l
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DRYVELL TEMFERATURE CONTROL E0P-01-ACCP-DkT 1
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1 FIGt'RE 1. DW/T BSEP/Vol. VI/EOP-01-ACCP Page 8 of 37 Rev. 4
A. TITLE - Dryvell Temperature Control (DW/T)
B. ENTRY CONDITION Primary Containment Volumetric Average Temperature is above 135'F.
C. OPERATOR ACTIONS
Primary Containment Volumetric average temperature is determined by:
Computer point C074, OR CAC-TY-4426-1, OR CAC-TY-4426-2, OR ~~
PT-16.2 DO NOT DEPRESSURIZE below 120 psig UNLESS motor-driven pumps sufficient to maintain reactor vessel level are running and available for injection.
- e******************************************eeneseen NOTE '
All drywell coolers trip and lock out on a LOCA signal,
- 1. START all dryvell coolers.
- 2. VERIFY RBCCW System operation an/ alignment to dryve?l.
- 3. IF a loss of drywell cooling her cccurred. THEN COMMENCE a reactor cooldovn at nornal cooldown ratt e, as soon as possible, in order to limit dryvell temperature increrse.
l
~~~
4 IF drywell temperature near level instrument reference legs is NOT ~
in the "SAFE" region of the A. ' Saturation Limit graph (see Pig re
- 1. DW/T). THEN PERFORM the following stepst
- a. IF the "Level / Power Control" flovpath is being executed THEN TLOOD the reactor per the "Level / Power Control" flovpath (coordinate 3.5-E).
- b. IF the "Level / Power Control" flovpath is NOT being executed.
THEN EXIT the End Path Procedure and ENTER the "Flooding Proceduro" in the Contingency section of this End Path Manual.
BSEP/Vol. V!/EOP-01-ACCP Page 9 of 37 Rev. 6
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DRYWELL SPRAY INITIATION PRESSURE L!MIT tio E SUPPRESS:QN CHAWSC9 A!R TEWPERATURE 15 DETERW NO BY:
THE ANULACE OF PONTS 2 AND 3 ON CAC-TR-4426-1 AND PONTS 2 AND 3 ON CAC-TR-4426-2 QB THE AWRA0E Or COWPUTER PONTS M 06,M 07,M15 AND M16.
FIGURE 2 DW/T BSEP/Vol. VI/EOP-01-ACCP Page 10 of 37 Rev 5
CAUTION If continuour LPCI operation is required to tasure adequate core cooling, Do NOT DIVERT all RHR pumps from the LPCI mode.
DO NOT INITIATE dryvell sprays UNLESS suppression pon1 level is bc3ow -1 inch.
NOTE Dryvell average temperature is calculated per Figure 3 DV/T.
- 5. BEFORE dryv611 average temperature reaches 300'Tt
~~~
- a. tF suppression chamber temperature and pressure are in the "SATE" region of the Dryvell Spray Initiation Pressure Limit graph (see Figure 2. DV/T) .
THEN PERTORM the followingt (1) OPEN the following valveet (a) Reactor Building Tc Suppression Pool Vacuum Breaker Isolation Valve, CAC-V16 P
(b) Remetor Building To Suppression Pool Vacuum Breaker
~ ~ ~
Isolation Valve, CAC-V17 (2) PLACE the following valve control switches to "CLOSE" (a) DW FLOOR DRAIN INBD ISOL VLV, C16-T003 (
(b) DW TLOOR DRAIN OTBD ISOL VLV, G16-T004 (c) DW EQUIP DRAIN INBD ISOL VLV, C16-7019 (d) DW EQUIP DRAIN OTBD ISOL VLV, C15-T020 l (3) TRIP both reactor recirculation pumps.
(4) TRIP all dryvell coolers.
(5) OPEN RPR Heat Exchanger A(B) Bypass Valve Ell-7048A(B).
(6) CLOSE RHR Heat Exchanger A(B) Inlet Valve, Ell-T047A(B).
(7) tT suppression pool temperature is at or above 80'T, THEN ,
INITIATE dryvell sprays.
I BCEP/Vol. VI/EOP-01-ACCP Page 11 of 37 Rev. 6 b
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FIGURE 3 DW/T DRYWELL AVERACE TEMPERATURE WORKSHEET NOTE Values may be obtained from CAC-TR-4426-1 and 2 or Microprocessor CAC-TY-4426-1 and 2.
90' elevation 4426-1 Point 11 (5822) 4426-2 Point 10 (5823) * =
x 0.053 =
Total No. of i Temperatures 1
4426-2 Point is (5824) ,, _
Between 70' and 80' elevation -
l 4426-2 Point 9 (5802) 4426-1 Point 9 (5803) * = x 0.088 =
Total No. of Temperatures 4426-2 Point 8 (5804)
Between 28' and 45' elevation 4426-1 Point 8 (5805) 4426-2 Point 7 (5806) * = x 0.404 =
Total No. of Temperatures 4426-1 Point 7 (5807) 4426-2 Point 6 (5808)
Between 10' and 23' elevation 4426-1 Point 6 (5809) 4426-1 Point 4 (5812) * = x 0.455 =
Totat No. of Temperatures 4426-2 Point 4 (5813)
Drywell Average Temperature BSEP/Vol. V!/EOP-01-ACCP Page 12 of 37 Rev. 4 b _
') . . 6 NOTE -
Drywell average temperature is' calculated per Figure 3 DW/T.
~
- 6. IF dryvell average temperature CANNOT be maintained below 300'F.
MF.N PERFORM the following step E ^ ~
l
~
- a. IF the "Lovel/ Power Control" flovpath is being executed. l M EN DEPRESSURIZE the reactor per the "Level / Power Control" .
TlE path (coordinate 3-E).
~
- b. IF the "Lovel/ Power Control" flowpath is NOT being executed, M EN DEPRESSURIZE the reactor per the "End Path Procedure." ;
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Ph! MARY CONTAINMENT PRF,SSURE E0P-01-ACCP-PCF t
i BSEP/Vol. VI/EOP-01-ACCP Page 14 of 37 R e it . 4
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A. f!TLE - Primary Containment Pressure Control (PC/P)
B. ENTRY CONDITION Primary containment pressure is above 2 psig.
C. OPERATOR ACTIONS NOTE Dryvell coolers trip and lock out on a LOCA signal.
- 1. NOTITY E&RC to sample dryvell for expected release.
- 2. START all dryvell coolers.
- 3. VERIFY RBCCW system operation and alignment to dryve11.
eneneseeenn**enamenen***eennaeannen***nne ......... ...en** 44. .... ..e .,*..
CAUTION High suppression chamber pressure may trip the RCIC turbine on high exhaust pressure.
enennenenennenan*********neenanneenen******enneneneaneen*****e**enenneennene**
- 4. IF the primary containment pressure increase appears to be due to y non-interruptible instrument air leakage. THEN PERFORM the following stepst
- a. CLOSE Division I Non-Interruptible Air To Dryvell Isolation Valve. RNA-SV-5262.
- b. IF Division I non-interruptible instrument air is NOT the source of the pressure increase. THEN PERFORM the IoIlowing steps
___ (1) OPEN Division I Non-Interruptible Air To Dryvell Isolation Valve RNA-SV-$262.
___ (2) CLOSE Division II Non-Interruptible Air To Dryvell Isolation Valve RNA-SV-5261.
- c. IF Division II non-intecruptible instrument air is NOT the scurce of the pressure increase. THEN OPEN Division II Non-Interruptible Air To Dryvell Isolation Valve RNA-SV-5261.
- 5. IF a reactor recirculation pump seal failure is suspected, THEN PERFORM the following steps for the affected pumpt l s
- a. TRIP the pump.
- b. CLOSE Reactor Recirculation Pump A(3) Discharge Valve, ;
B32-F031A(B).
BSEP/Vol. VI/EOP-01-ACCP Page 15 of 37 Rev 4 I
l
- c. CLOSE Recirculation Pump A(B) Seal Injection Valve, 832-V22(V30).
a
~~~
- d. VERIFY seal injection flow is zero as indicated by Pump A(B)
Flow Indicator 832-FI-1839(832-FI-1842).
- e. IF seal injection flow is greater than aero, THEN CLOSE Recirculation Pump A(B) Seal Injection Flow Controller Downstream Isolation Valve, 832-V46(V48).
is Ls
- ~~~
- f. CLOSE Reactor Recirculation Pump A(B) Suction Valve, s
832-F023A(B).
3 CLOSE Reactor Recirculation Pump A(B) Discharge Bypass Valve, B 32-F032A (B) .
eenenenamene**eneneseeeeeeemenenneeseneeemenenneteenenenennenene******eeme****
CAUTION DO NOT PLACE Containment Atmosphere Monitors CAC-4409 and CAC-4410 in service with primary containment pressure above 30 psig.
j ene***eeeeeeeeeeeeeee****neseenee*****entanenemanneeeeeeeee*****e*************
~~~
- 6. PLACE Containment Atmosphere Monitors CAC-4409 and CAC-4410 in i service. (OP-24)
- 7. IF while exec":ing this procedure, hydrogen or oxygen concentration j exceeds 49 THEN PLACE the CAD System in service. (OP-24)
- 8. IF a LOCA signal has been received. THEN PERFORM the following stepst
- a. CLOSE the following valves to provide long term isolation:
i j (1) RBCCW Sample Isolation Valve, RCC-PV-12225 (Pen-X-778) i ___
(2) RBCCW Sample Isolation Valve, RCC-PV-1.22C (Pen-X-77C)
(3) RWCU Return To Vessel Valve, G31-F042
- b. VERIFY operability of the containment high rat.te area radiation monitors (D22-RI-4195, 4196, 4197, 4198 on Pant \s XU-75 and XU-79) by performing the channel test and ECS chceks as described in PT-01.14B.
i c. CLOSE or VERIFY CLOSED the following valves:
I (1) Division I Non-Interruptible Air To Drywell Isolation Valve, RNA-SV-5262 (2) Division II Non-Interruptible Air To Dryvell Isolation Yalve, RNA-SV-5261
- 9. IF dryvell average temperature is below 212'F AND a primary system Teak is NOT suspected. THEN PERFORM the following steps:
BSEP/Vol. V!/EOP-01-ACCP Page 16 of 37 Rev. 4 J
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- e*************************e**********************e CAUTION '
E&RC sust sample the containment atmosphere in accordance with OG-6.1 BEFORE I releases to the atmocphere are made. f
- e*******e******************************************e**************
- a. Momentarily PLACE the following keylock CAC override switches to "0VERRIDE":
(1) CAC-CS-4178 .
I (2) CAC-CS-4179 i (3) CAC-CS-4337
___ (4) CAC-CS-4338
- b. START or VERIFY ON both SBGT trains.
- c. OPEN the following valves:
(1) 2-Inch Suppression Pool Purge Exhaust Vai.e to S8ti ,
System CAC-V172 (2) Suppression Pool 2-Inch Exhaust Valve, CAC-V22. [
- d. OPEN Primary containment Post LOCA Vent Valves. SGT-V8 and/or V9, as required to reduce ;cimary containment pressure.
- e. PERFORM an OG-6.1 calculation. t l
eneae****eneesee***eemee*******e**********************************************
CAUTION :
I Suppression chamber pressure is determined by CAC-PI-1257-2A or CAC-II-1257-2B l or Computer Point L-128.
OBSERVE NPSH requirements for pumps taking suction from the suppresnion pool.
IF continuous LPCI operaticn is required to assure adequate core coaling, i DO NOT DIVERT all RHR pumps from the LPCI mode. .
eeeeeeeeeeeeeeeeeeeeee**eeeeeeeeeeme******emeneseeeeeeeeee********e********eem !
~~~
- 10. IF the Condensate System is NOT needed for reactor level control, ;
TEEN CLOSE the following valvest f I
Teedwater Line A Isolation Valve, B21-F032A. t
- a. ;
1 I
l b. Teedwater Line B Isolation Valve, B21-F0328.
r
- 11. BEFORE r appression chamber pressure reaches 16.5 psig. INITIATE [
j suppression pool sprays. l t
BSEP/Vol. VI/EOP-01-ACCP Page 17 of 37 Rev. 6 !
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40 - ,
i 0 10 20 30 40 50 60 70 80 90 l
l SUPPRESS!ON CHAMBER PRESSURE (PSIG)
DRYWELL SPRAv IN;TIATION PRESSUR$ LIMIT NOTE SUPPWSS ON CHAWSER AjR TEWPER ATVRE 15 DETERW.NED BY:
THE A\ TRACE OF PONTS 2 AND 3 ON CAC-TR-4426-1 AND PONTS 2 AND 3 ON CAC-- '
TR-4426-2 {E THE AWRAGE OF COMPUTER PONTS M 06,m07,m15 AND M16.
FIGURE 1. PC/P BSEP/Vol. VI/EOP-01-ACCP Page 18 of 37 Rev. 5
l
- n*************************
CAUTION DO NOT INITIATE drywell sprays UNLESS suppression pool level is below -1 inch.
- 12. IF suppression chamber pressure exceeds 16.5 psig. THEN PERFORM the To11owing stepst i
~~~
- a. IF suppression chamber temperature and pressure are in the i "5AFE" region of the Dryvc11 Spray Initiation Pressure Limit l Araph (see Figure 1. PC/P). f THEN PERFORM the followingt i i
(1) OPEN the following valvest ;
i (a) Reactor Building To Suppression Pool Vacuum Breaker j Isolation Valve. CAC-V16 !
i (b) Reactor Building To Suppression Pool Vacuum Breaker !
Isolation Valve. CAC-V17 i (2) PLACE the following valve control switches to "CLOSE" l l
(a) DW FLOOR DRAIN INBD ISOL VLV, G16-F003 ;
(b) DW FLOOR DRAIN OTBD ISOL VLV, C16-F004 l i
(c) DW EQUIP DRAIN INBD ISOL VLV, G16-F019 ,.
(d) DW EQUIP DRAIN OTBD ISOL VLV, G16-F020 !
(3) TRIP both reactor recirculation pumps.
(4) TRIP all dryvell coolers.
(5) OPEN RHR Heat Exchanger A(B) Bypass Valve. E11-F046A(B).
i (6) CLOSE RHR Heat Exchanger A(B) Inlet Valve. E11-F047A(B). ;
(7) IF suppression pool temperature is at or above 80'F. THEN [
INITIATE dryvell sprays. !
I i
I l
l l
l l
I ISEP/Vol. VI/EOP-01-ACCP Page 19 of 37 Rev. 6 l f l
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5.00RESSION CHM.'BER PRESSJRE (PSIG)
[
RESjiURE SUPPRESS!ON PRESSURE !
d- u ,t .-
m L
~ir SupPRESSON POOL LEdL t$ GRE ATER THAN +6 FfET t
AND SVPCESSON CHAWBER PRESSURE IS GREATER THAM 44 PSC,lhD THE PRESSURE SUPPRESSON ,
PRESSURE IS IN THE VNS AFE REGON OF THE GR APH, r i
r FICtlRE 2, PC/P a
BSEP/Vol. VI/EOP-01-ACCP Page 20 of 37 Rev. 5 !
(
i w
)
- 13. IF suppression chamber presoure CANNOT be maintained in the "SAFE" region of the Pressure SuppresAion Pressure graph (see Figure 2 PC/P), THEN PERFORM the following stepst
- a. JU[ the "Level /Pover Control" flovpath is being executed, THEN DEPRES3URIZE the reactor per the "Level /Pover Control" flovpath *
(coordinate 3-E).
- b. JF, the "Level /Pover Control" flovpath is NOT being executed. #
THEN DEPRESSURIZE the reactor per the "End Path Procedure."
14 I_F, suppression chamber pressure CANNOT be maintained belov 58 psig.
THEN PERFORM the following steps
- a. JU[ "Level / Power Control" flovpath is being executed. THEN FLOOD the reactor per the "Level /Pover Control" flovpath (coordinate
- 3. 5-E) .
- b. JU[ the "Level / Power Control" flovpath is NOT being executed.
THEN EXIT the End Path Procedure and ENTER the "Flooding Procedure" in the Contingency section of this End Path Manual.
l BSEP/Vol. VI/EOP-01-ACCP Page 21 of 37 Rev. 6 l
I
.r,e r -
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40 O 10 20 30 40 50 60 70 80 90
- SUPPRESSION CHAMBER PRESSURE (PSIG)
DRYWELL SPRAY i INITIATION PRESSURE LIMIT !
NOTE SUPPESSIOh CH AWSE,R A:R TEWPERAT\)RE l$ DETERW NED BY:
THE AWRAGE OF PONTS 2 AND 3 ON CAC-TR-4426-1 AND PONTS 2 AND 3 ON 0.AC-TR-4426-2 3 THE AWRACE OF CCeJPUTER
- PONTS M C4,w107,M15 AND M16, FIGURE 3. PC/P
)
i BSEP/Vol. VI/EOP-01-ACCP Page 22 of 37 Rev. 5 i l
- I
e I
I
- 15. IF flooding the reactor in Step 13 did NOT stabilize suppression h" ' ' cEamber pressure below $8 pais. THEN irreipective of whether adequace core cooling is assured l
- a. INITIATE suppression pool sprays. !
- A *** l CAUTION l DO NOT INITIAIZ drywell sprays UNLESS suppression pool level is below -1 ir.ch. !
- a*************n***********a*****n*******a*******************
- b. IF supprission chamber temperature and prossure are in the "SAFE" region of the Drywell Spray Initiation Pressure Limit graph (see Figure 3. PC/P). j THEN PERFORM the following [
(1) OPEN the following valves: j l (a) Reactor Building To Suppre esion Pool Vacuum Breaker j Isolation Valve CAC-V16 L i
(b) Reactor Building To Suppression Pool Vaccum Breaker [
Isolation Valve. CAC-V17 i !
(2) PLACE the following valve control switches to "CLOSE" i
j ___ (a) DW PLOOR DRAIN INBD ISOL VLV. G16-T003 l
, ___ (b) DW FLOOR DRAIN OTBD ISOL VLV. G16-F004 l (c) DW EQUIP DRAIN INBD ISOL VLV. G16-F019 ;
(d) DW EQUIP DRAIN OTBD ISOL VLV. G16-F020 i
1 1 -
i r
L l
3 I
i I i F
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Page 23 of 37 Rev. 6 BSEP/Vol. VI/EOP-01-ACCP l[!I 1
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-l L i -
l
(3) TRIP both reactor recirculation pumps.
(4) TRIP all drywell coolers.
(5) OPEN RHR Heat Exchanger A(B) Bypass V& Ave. E11-F048A(B).
(6) CLOSE RHR Heat Exchanger A(B) Inlet Valve. E11-F047A(B).
(7) IF suppression pool temperature is at or 3bove 80*F. THEN INITIATE drywell sprays.
- 16. IF suppression chamber pressure exceeds 58 psig. THEN VENT primary containment as follows:
- a. EVACUATE the Reactor Building.
- b. Momentarily PLACE the following keylock CAL override switches to "0VERRIDE":
(1) CAC-CS-4178 (2) CAC-CS-4179 (3) CAC-CS-4337 (4) CAC-CS-4338
- c. PLACE the CAC PURGE VENT ISOL OVRD CAC-CS-5519 switch to "0VERRIDE."
- d. 9 PEN Primary Containment Post LOCA Vent Valves. SGT-V8 and 3GT-V9.
- e. OPEN 2-Inch Suppression Pool Purge Exhaust Valve To SBGT System. CAC-V172.
- f. START both 5BGT ' rains.
- g. OPEN Suppression Pool 2-Inch Exhaust Valve. CAC-V22.
- 17. IF venting primary containment per Step 15 did NOT stabilize I suppression chamber pressure below 58 psig. THEN PERFORM the following steps
- a. CLOSE Suppre.ssion Pool 2-Inch Exhaust Valve. CAC-V22.
- b. INSTALL the following jumpers to allow operation of purge valves and fanst BSEP/Vol. VI/EOP-01-ACCP Page 24 of 37 Rev. 6
(1) Unit 1 only:
(a) In Cabinet XU-28. INSTALL a jumper f rom Terminal 75 to Terminal 82 on Terminal Boat BB.
(b) In Cabinet XU-27. INSTALL a jumper f rom Terminal 75 to Terminal 82 on Terminal Board CC.
(2) Unit 2 only:
(a) In Cab? net XU-28, INSTALL a jumper from Terminal 77 to Terminal 84 on Terminal Board BB.
(b) In Cabinet XU-27, INSTALL a jumper f rom Terminal 77 to Terminal 84 on Terminal Board CC.
- c. OPEN the follaving valves:
(1) Furge Exhaust Fans Outboard Exhaust Header Isolation Valve. A-BFV-RB (2) Purge Exhaust Fans Suction Valve, I-BFV-RB; and Purge Exhaust Fans Inboard Exhaust Header Isolation Valve, N-B FV-R B
- t CAUTION DO NOT PLACE either purge fan switch in the "0FF" position if purge fan trips.
- d. START Purge Exhaust Tans A-PS-EF-RB ar.d B-PS-EF-RB in slow speed.
- e. OPEN the Suppression Pool 2-Inch Exhaust Valve, CAC-V22.
- 18. IF venting primary containment per Step 16 did NOT stabilize suppression chamber pressure belov 58 psig, THEN OPEN the following valves:
- a. Drywell 2-Inch Exhaust Valve, CAC-V23
- b. Inboard Dryvell Purge Exhaust Valve, CAC-V9
- 19. IF venting primary containment in Step 17 did NOT stabilite suppression chamber pressure belov 58 psig, THEN 0..o the following valves:
- a. Outboard Dryvell Head Purge Exhaust Valve, CAC-V50
- b. Inboard Dryvell Head Purge Exhaust Valve, CAC-V49 BSEP/Vol. VI/EOP-01-ACCP Page 25 of 37 Rev. 6 l
~~~
- 20. IF venting primary containment in Step 18 did NOT stabilize suppression chamber pressure below 58 psig. THE5 PERFORM the following steps:
~""
- a. INSTALL the following jumpers to allev operation of CAC-V7 and CAC-V8:
~~~
(1) In Cabinet XU-56. INSTALL a jumper from Terminal 23 to Terminal 35 on Terminal Board B.
(2) In Cabinet XU-56, INSTALL a jumper f rom Terminal 42 to Terminal 54 on Terminal Board B.
- b. OPEN Outboard Suppression Pool Purge Exhaust Valve, CAC-V8.
- c. OPEN Inboard Suppression Pool Purge Exhaust Valve, CAC-V7.
- 21. IF venting primary containment in Step 19 did NOT stabilize suppression chamber pressure below 58 psig THEN PERFORM the following steps:
~~~
- a. INSTALL the following jurper to allow operation of the Dryvell Purge Exhaust Valve, CAC-V10:
(1) In Cabinet XU-56 INSTALL a jumper f rom Terminal 34 to '
Terminal 46 on Terminal Board C.
- b. OPEN Outboard Dryvell Purge Exhcust Valve, CAC-V10.
- 22. VHEN suppression chamber pressure can be maintained below 58 psig without venting, THEN PERFORM the following steps:
- a. CLOSE or VERIFY CLOSED the following valves in this order:
(1) Inboard Suppression Pool Purge Exhaust Valve, CAC-V7 (2) Outboard Suppression Pool Purge Exhaust Valve, CAC-V8 (3) 2-Inch Suppression Pool Purge Exhaust Valve To SBGT System, CAC-V172 (4) Suppression Pool 2-Inch Exhaust Valve, CAC-V22 (5) Inboard Dryvell Purge '.xhaust Valve, CAC-V9 (6) Outboard Dryvell Purge Exhaust Va.1ve, CAC-V10 (7) Dryvell 2-Inch Exhaust Valve, CAC-V23 BSEP/Vol. VI/EOP-01-ACCP Page 26 of 37 Rev. 6 l
(8) Inboard Dryvell Head Purge Exhaust Valve, CAC-V49 (9) Outboard Dryvell Head Purge Exhaust Valve, CAC-V50 (10) Primary Containment Post LOCA Vent Valve. SGT-V8 (11) Primary Containmee.t Post LOCA Vent Valve SGT-V9
- b. STOP the Purge Exhaust Fans A-PS-EF-RB and B-PS-EF-RB.
- c. CLOSE or VERITY CLOSED the following valves in this ordert (1) Purge Exhaust Fans Outboard Exhaust Header Isolation Valve, A-BFV-RB (2) Purge Exhaust Fans Suction Valve, I-BFV-RB; and Purge Exhaust Fans Inboard Exhaust Header Isolation Valve, N-BFV-RB (3) Reactor Building To Suppression Pool Vacuun Breaker Isolation Valve, CAC-V16 (4) Reactor Building To Suppression Pool Vacuun.. Breaker Isolation Valve, CAC-V17
- d. PLACE the following keylock CAC override switches to "0FF"
_ (1) CAC-CS-4178
___ (2) CAC-CS-4179
_ (3) CAC-CS-4337
___ (4) CAC-CS-4338 Ind. Ver.
/ e. VERIFY or PLACE the CAC PURGE VENT ISOL OVRD CAC-CS-5519 switch j to "0FF."
- f. IF installed. THEN REMOVE the following jumpers (1) Unit 1 only:
Ind. Ver.
/ (a) In Cabinet XU-28, between Terminals 75 and 82 on Terminal Board BB BSEP/Vol. VI/EOP-01-ACCP Page 27 of 37 Rev. 6 l
/- (b) In Cabinet XU-27. ' between Terminals 73 and 82 on Terminal Board CC (2) Unit 2 oniv Ind. Ver.
/ (a) In Cabinet XU-2M. between Terminals 77 and #4 on Terminal Board BB
/ (b) In Cabinet XU-27, between Terninals 77 snd 84 on Terminal Board CC t
Ind. Ver.
/
(3) In Cabinet Xt'-56. between Terminals 23 and 35 on Terminal Board 3
~
(4) In Cabf ret 71'-56 betveen Termina).s 42 and 54 on Terminal Board B
/ (5) In Cabinet XU-56 between Terminals 34 and 46 on Terminal Board C -
\
B$cP/Vol. VI/ FOP-01-ACCP Page 28 of 37 Fev. 5
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I SL'PPRESSION POOL LEVEL CONTROL E0P-01-ACCP-SPL-HICH j 2
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j BSEP/Vol. VI/EOP-01-ACCP Page 29 of 37 Rev. 4 l 1 !
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40 O 10 20 30 40 50 60 70 80 90 SUPPRESSION CHAMBER PRESSURE (PSIG)
DRYWELL SPRAY JNITIATION PRESSURE LIMIT NOTE SUPPESSiON CH AW90R AR TEWPER ATVRI 15 DETERuMD SY:
THE A\ TRACE OF PQNTS 2 AND 3 0*4 CAC-TR-4426-1 AND PQNTS 2 AND 3 ON CAC-TR-4426-2 @ THE AWRACE OF COMPUTER PON TS M 06,wio7,m t S AND M 16.
, TIGURE 1. SP/L-HICH BSEP/Vol. VI/E0P-01-ACCP Page 30 of 37 Rev, 5 1
l
7___-
o
- l A. _ TITLE - Suppression Pool Level Control - High Level (SP/L-HIGH) i t
B. ENTRY CONDITION j Suppression pool level is above -27 inches. f
[
C. OPERATOR ACTIONS ,
~ 1. IF suppression pool level is above -24 inches OR CST level is below [
Tfeet, THEN VERIFY automatic transfer of or mEually TRANSFER HPCI r and RCIC suction to the suppressio.. pool. j eeeeeee ee e ee ee ee e e ee m m et e ** e e n e** 4 e ee e e e ee e e eee e m e n e e e n e n e son e e s ee n e m enene ne ne I
CAUTION IF continuous LPCI operation is required to assure adequate co e cooling, l E NOT DIVERT all RHR pumps from the LPCI mode.
eeeeeeeeeeeeeeeeeee****eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeemenemene***ene i
- 2. DETERMINE and ISOLATE the source of suppression pool in-leakage.
l
- 3. IF fuel failure is suspected. THEN NOTIFY E&RC to sample suppression ;
pool. ,
4 ALIGN B RHR loop to drain suppression pool to radwaste. (OP-17) i
~
- 5. IF suppression pool level CANNOT be maintained below -27 inches. AND ~
E equate core cooling is assured. THEN TERMINATE injection to the !
reactor from the hotwell and the CST.
[
ene**ene******neeeeeeeeeeee***********eeeeeeeee****eneneaansemaneeeeeeeeeeeeen CAUTION t i
IF, F continuous LPCI operation is required to assure adequate core cooling, Do NOT DIVERT all RHR pumps from the LPCI mode. (
e DO NOT INITIATE drywell sprays t'NLESS suppression pool level is below -1 inct..
amenemetementaneenanne***enen.een.nene**eeeeeeeeeeeee..neenenene***e.een.eeene ,
- 6. BEF0kE suppression pool levs1 reaches -1 incht i
- a. IF suppression pool temperattre and pressure are in the "SAFE" region of the Drywell Spray Initiation Pressure Limit graph (see Figure 1. SP/L-HICH), ,
THEN PERFORM the followingt (1) OPEN the following valvest
_ (a) Reactor Buf1 ding To Suppression fool Vacuum Breaker Isolation Valve. CAC-V16 BSEP/Vol. VI/EOP-01-ACCP Page 31 of 37 Rev. 4
l
! +6
+5 l ^
n l LL. +4 U
I, i W +3
, w
- J
+2
! J l o UNSAFE O
1 i 1
Z
'l o 0
I m
i m .'r .
, 1 l
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~'l !
1 l
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F j
a _;'
l ,
I C ,
I i 7
@ -i
+ M t -- 1
-. 3 i
i _4 l 700 500 900 1000 1100 l REACTOR PRESSURE (PSiG)
! m CJ D P. P. , r--R R I O BJ, D. C O__' '_y_
^ A D ! .'. T
.C A U T;0N l
j f SUPPRESS.CN POOL w A'ER LINTL 'S GRE A'Ui TkAN 1 INCH DEID, M 'bE t RE ACTDR WLST BE OEPRESSAZEO.
}
4 1
l j FIGtRE 2. SP/L-MIGH I
f l BSEP/Vol. VI/EOP-01-ACCP Page 32 of 37 Rev. 5
-l 1
i
m.
gf g .
s s . >
i (b) Reactor Building To Suppression Pool Vacuum Breaker Isolation Valve, CAC-V17 (2) PLACE the following valve control switches to "CLOSE":
_ (a) DW FLOOR DRAIN INBD ISOL VLV G16-F003 (b) DW FLOOR DRAIN OTBD ISOL VLV, G16-F004 !
(c) DW EQUIP DRAIN INBD ISOL VLV, G16-F019
_ (d) DW EQUIP DRAIN OTBD ISOL VLV G16-F020
_ (3) TRIP both reactor recirculation pumps.
_ (4) TRIP all drywell coolers.
_ ($) OPEN RHR Heat Exchanger A(B) Bypass Valve E11-F048A(B).
(6) CLOSE RRR Heat Exc . anger A(B) Inlet Valve E11-T047A(B).
(7) IF s,uppression pool temperature is at or above 80'F, THEN TRITIATE dryvell sprays.
1
~ IF suppression pool level is above -1 inch. THEN CONTINUE to operate Trywell sprays UNTIL primary containment pressure is less than 2 psig.
- eenennen****ene***eenee*enenneeeeeeeeeeeeeeene**** en******enenenseenenennene CAUTION L
j DO NOT DEPRESSURIZE below 120 psig UNLESS motor driven pur.ps suf ficient to 4
maintsin reactor vessel are running and available for injection.
- enseenen=eenenene ne****ee*****eenemenene**e **eenesennene neannee**4*eenen*ee j 8. IF suppression pool level CANNOT be maintained in the "S/.FE" region
~
, U the Suppression Pool Load Limit graph (see figure 2. SP/*.-HIGH),
1 THEN REPUCE reactor pressure with the bypass valve opening jack or
] SRVs to maintain reactor pressure in the "SAFE" region of the graph.
I t
- 9. IF suppression pool level and reactor pressure CANNOT be maintained a IE the "SAFE" region of the Suppression Pool Load Limit graph (see Figure 2. SP/L-HIGH) THEN PERFORM the following stepst
- a. IF the "Level / Power Control" flowpath is being executed. THEN DEPRESSURIZE the reactor per the "Level / Power Control" flowpath
! (coordinate 3-E).
~
- b. IF the "Level / Power Control" flowpath is not being executed, j YiIEN DEPRESSURIZE the reactor per the "End Path Procedure."
i BSEP/Vol. VI/EOP-01-ACCP Page 33 of 37 Rev. 4 l
i
a
. . 4 o
i SrJPPRESSION POOL LEVEL CONTROL E0P-01-ACCP-SPL-LOW BSEP/Vol. VI/i.0P-01-ACCP Page 34 of 37 Rev 4
e a,
- *
- 3 6 POOL ACNAL EMetf39CN O WW N TDepouw WT POOL TDetAATVut 20VALs 47q y) iQoo r0 i100 Pos im'r - -
300 TO 1000 P90 144'r - .
_000 TO 000_P9C tli'r 70010 000 P90 i&3'r - .
__00010 700 PSC 197'r - .
300 TO 900 P90 101 7 - .
400 70 Soo PSC 'as'r - .
_300 TO 400 P9C 170*r - .
oo 70 3o0 Psc twr - .
iso to roc es.c * *r - .
ass m>. iso Ps.o. sucen so 1
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=
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y 1 I'
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,9Ym fi1Iiff ;ii i I'l 11 7TTIiIif ii QiIU YTTTiiTffi L.* 1 Il 0 5 10 15 20 25 30 35 40 45 50 AT HC (7)
HE AT CAP ACITY LEVEL LIMIT NOTE SLPDRESSC6 POOL n ATER TEWDER AT(R[ l$ D('ERW N[D BY, CAC-TY-4426-1 CS CAC-W-4426-2 Q9 PONT 1 ON CAC-TM-4426-1 QR PONT 1 ON CAC-TM-4426-2 2 COWPUTER PONT 0050 2 CCa# UTER PONT 0051.
PIGllRE 1. SP/L-LC%'
3SEP/V01. VI/EOP-01-ACCP Page 35 of 37 Rev. 5 m
i e i
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o I l
A. TITLE - Supptgasion Pool Level Control - Low Level (SP/L-LOW) l B. ENTRY CONDITIOF !
f Suppression pool level is below -31 inches. f C. OPERATOR ACTIONS
[
eseeeeeeeee eeete**eseeaeateneteneeeeeeee **e eee eeeee ee eeeee eeeeee eeeeeet een e see [
CAL' TION !
i OBSERVE NPSH requirements 'or pumps taking suction from the suppression pool, eenseeeeeeeeeeeeeeeeenenen,eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeen
{
!. CHECK the following in an attempt to locate the source of L suppression pool leakage
- a. Reactor Bu11d103 sump level annunciators (A-4) i
- b. Reactor Building flood level annunciators (L'A-12)
?
- c. Integrity of suppression pool penetrations l 1
- d. RHR to Radvaste Outboard Isolation Valve. E!!-F040, closed
- e. RHR to Radvaste Inboard Isolation Valve. Ell-F049, closed f
- 2. ISOLATE any source of leakage that is found. I neeemenneenese***eeeeeeeeeeeeeeeeee**eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeene CAtJTION .
L DO NOT ALLOW CST level to decrease below 10 feet.
eneeseeeeeeeeeeeeeeeeeeeeeeenneeseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeene
- 3. MAINTAIN suppression pool level between -27 and -31 inches with the f following systems:
l
- a. Core Spray suction from CST (0P-18)
- b. RER fill from MUD tank (OP-17)
~
4 IF su
@ ppression MAINTAIN pool level CANNOT suppression be in pool level maintained the "SATE"above region~31 inches, of the Heat Capacity Level Limit graph (see Figure 1. SP/L-LOW). ,
I
~
- 5. IF suppression pool level CANNOT be maintained in the "$AFE" region l U the Heat Capacity level Limit graph THEN RIDUCE reactor pressure (
vith the bypass valve opening jack or SRVs to increase the Heat '
Capacity Level Limit differential temperature (AT HC and RIMORI the >
Heat Capa'ity Level Limit within the "SATE" region of the graph (see Figure !. 3P/L-LOW).
BSEP/Vol. VI/EOP-01-ACCP Pag
- 36 of 37 Rev. 4 1 l
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O 1
- 6. IF suppression pool level and reactor pressere CANNOT be maintained in the "SAPE" region of the Heat Capacity Level Limit graph, THEN PERFORM the following steps
~~~
- a. IF the "Level / Power Control" flovpath is being executed. _THEN DEPRESSL'RIZE the reactor per the "Level / Power Control" flowpath. (Coordinate 3-E)
- b. IF the "Level / Power Centrol" flowpath is NOT being executed.
THEN DEPRESSL'R!iE the reactor per the "End Path Procedure."
BSEP/Vol. VI/EOP-01-ACCP Page 37 of 37 Rev. 4 9