ML20204J902

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Rev 4 to Emergency Operating Procedure ECA-3.3, Steam Generator Tube Rupture W/O Pressurizer Pressure Control
ML20204J902
Person / Time
Site: Millstone, Haddam Neck, 05000000
Issue date: 06/03/1988
From:
CONNECTICUT YANKEE ATOMIC POWER CO.
To:
Shared Package
ML20204H467 List: ... further results
References
ECA-3.3, NUDOCS 8810250279
Download: ML20204J902 (23)
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Text

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JUN 0 3198F

." hWMBER TTT12 REY. ISSUE /DATE ECA.3.3 SGTR WITHOUT PRESSURIZER Rev. 4 PRESSURE CONTROL i

A. PURPOSE nis procedure provides actions for a SGTR with coincident loss of normal and auxuiary pressunzer sprays and PORVs.  !

B. SYMPTOMS OR ENTRY CONDITIONS This procedure is entered from E 3, STEAM GENERATOR TUBE RUPTURE, Step 16, i w hen pressurizer pressure control is not available.  :

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i 8810250279 001007 Page 1 of 17 l PDR ADOCK 05000213 ,

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JUN 0 31988

  • 5%fBER mu REY. ISSUE /DATE EC A.3.3 SGTR WITHOUT PRESSURIZER Rey,4 PRESSURE CONTROL STEP ACT10N/FXPECTED RESPONSE RESPONSE NOT OBTA!NED NOTEt FOLDOUT PAGE SHOULD BE OPEN.

1 CHECK RUI'TURED SG(s) WIDE QQIQ STEP 7 RANGE LEVEL (s) LESS THAN 69 %

2 1RY TO ESTABLISH NORAML PRESSURIZER SPRAY:

a. Check RCP status - a. Try to start #3 QR #4 RCP:

AT LEAST #3 QR #4 RUhWING

1. Establish conditiens for starting
  1. 3 OR #4 RCP:
a. Close too Tc isolation valve,
b. Openloo ypass valve.
c. Stan oil pump,
d. Insure seal water and component cooling; water supplied to RCP.
e. Insure ,ower bearing temperature is less than 170' F.
f. Check RCS pressure greater than 300 PSIG.
g. Open CH TV 240, CH TV 241 and CH TV 334.

(scal water return trip valves)

. h. Open CC TV 1411 (RCP oilcooler CCW rerum trip valve)

1. Open seal water return MOV.
2. Start selected RCP, THEN perform the following:
a. Oxn leo Tc imlation valve,
b. C ose 1 bypass valve.

IE RCP can NQI be started, IllEN 0010 Step 3.

b. Normal spray - AVAILABLE b. QQIQ Step 3.
c. QQIQ E 3, SUiAM GENERATOR TUBE RUPT1]RE, Step 15 Page 2 of 17

JUN 0 31988 hvMBER TTTLJ REY. ISSLT/DATE l E C A.3.3 3GTR WITHOUT PRESSUOIZER Rev.4 i PRESSURE CONTROL i STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT OBTABID l

3 TRY TO RESTORE PRZR PORY:

a. Establish conditions for opening a. E no PORV can be opened, a PRZR PORY: THEN QQIQ Step 4.

1 1. Check PORY air supply pressure -

AVAIIABIE

2. Open one PORY isolation valve:

l o PR MOV 567 l .QR o PR MOV 569

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b. GOIQ E 3, 1 STEAM GENERATOR WBE RUI*TURE, Step 16

- 4 TRY TO ESTABLISH AUXILIARY SPRAY:

a. Check chuging pumps - a. Try to start one chuging pump.

AT LEAST ONE RUNNING E no chuging pump can be stuted, IEEN stan the metering pefap.  ;

E metering pump can SQIbe started, !

T11EN QQIQ Step 5.

b. Establish auxilimy spray flow:
1. Open chuging header to auxil' I

spray isolacon valve CH MOV . 8

2. Throttle chuging header isolation valves CH MOV 292B and CH MOV 292C

{

3. Control spray flow throttling I chuhg flow con valve Cil ;CV 110 QR CH FCV 110A
4. Do not execed 300' F A T between spray line temperature and pressuruct temperature
5. Recad all 4 Ts greater than 200' F e, QQIQ E 3, STEAM GENERATOR WBE RUPTURE, Step 15 b l Page 3 of 17

. JUN 0 31988 TTHE REY. ISSUE /DATE NUMBER Rev,4

. E C A 3.3 SGTR WITHOUT PRESSURIZER PRESSURE CONTROL ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINTD ,

STEP -,

7 F

CAUTION: Af0NITOR DWST LEVEL. START AfAKEUP TO DWST BEFORE LEVEL DECREASES TO $4,000 GALLONS.

J t i NOTE: THE PRESSURIZER STEAbf SPACE VENT CAN BE USED TO REDUCE RCS PRESSURE. PERhflSS10N AfUST BE OBTAINED i FROM DIRECTOR STATION EhfERGENCY OPERATIONS PRIOR

' TO OPENING VENT VALVE (s). l 5 CIIECK INTACT SG LEVELS:

a. Check wide range levels - a. Maintain total AUX feedwater now GREATER TilAN 63 % grcater than 320 GPM until wide range levelin at ! cast one SG is (67 % FOR ADVERSE COSTAINMENT) greater than 63 %

(67 % for adverse containment).

b. Control AUX feedwater flow to b. E any 50 wide range level continues nuintain wide range levels between to increase in an uncontrolled manner, 63 % and 69 % IllEN GQIQ E 3, I S IEAM GENERATOR RJBE 4 (67 % and 69 % for adverse RUPTURE, Step 1.

containment) ,

6 ClIECK PRZR LEVEL RERJRN IQ STEP 1.

GREATER T11AN 10 % '

(24 % FOR ADVERSE CONTAINMENT)

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Page i of 17 i

JUN O 31986  !

NUMBER TTT U REY. ISSUE /DATE  :

E C A.3.3 SGTR WITHOUT PRESSURIZER Rev.4 PRESSURE CONTROL STEP ACTIONEXPECTED RESPONSE RESPONSE NOT OBTAINED 7 CHECK IF SI CAN BE TERMINATED-

a. Check RCS subew!Inc based on a. DO NOT STOP SI PUMPS.

core exit thermocouples - QQ IQ ECA 3.1, GRE ATER 'nIAN 32' F SGTR WITH LOSS OF REACTOR (SEE OPPOSITE PAGE COOLANT SUBCOOLED FOR ADVERSE CONTAINMENT) RECOVERY DESIRED, Step 1. l i b. Check secondary heat sink: b. IE NETDIER condition is satisfied.

l THEN DO NOT STOP St PUMPS.  !

1 o Total AUX feedwater flow to SGs - 1 l GREATER T11AN 320 GPM GQIQ ECA 3.1, l AVAILABE SGTR WTTH LOSS OF REACTOR (

COOLAST SUBCOOLED ,

Olt RECOVERY DESIRED Step 1.  !

o Wide range levelin at least one

intact SG -

GREATER THAN 63 %

l (67 % FOR ADVERSE J

CONTAINMENT)

c. Check RVLIS 11enum indication - c. DO NOT STOP SI PUMPS. ,

GREA'IER 'IEAN 15 % GQIQ ECA 3.1, SGTR WTTH LOSS OF REACTOR ,

) COOLAhT SUBCOOMD RECOVERY DESIRED Step 1. 1

d. DO NOT STOP SI PUMPS.

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d. AnbRI.ASINO IN IN ANru tund SG wide range Icvel- Step 2.

RETURNIQ i

1 UNCON7ROLMD MANhT.R l QR OFFSCALE HIGH ,

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JUN 0 31989 NUMBER TTTIE REY. ISSUEA) ATE ECA 3.3 SGTR WITHOUT PRESSURIZER Rev.4 PRESSURE CONTROL

't STEP ACTION / EXPECTED RESPONSE P.~.SPONSE NOT OBTAINED F 7 CAUTION: o IF OFF SITE PO%'ER 15 LOST AFTER RESETTING St.

AfANUAL ACTION AfAY BE REQUIRED TO RESTART SAFEGUARDS EQUIPEhfENT.

o IF CONTROL S%' ITCH FOR ANY SHUTDORN CHARGING PUhfP H'AS TAKEN TO THE TRIP POSITION. THE PUhfP(S)

AfAY AUTO START %' HEN BOTH Si %'L RELAYS ARE RESET.

L J 8 STOP Si PUMPS AND PLACE LN STANDBY:

a. Reset Si and containment isolation:
1. Check containment pressure - 1. Perform the following:

LESS TIIAN 5 PSIG

a. Open CKTs A13 and B13 in DC panels A and B.
b. Reset St WL Relays.
c. IE charging pump control switch (es) are b'QIin TPO.

THEN restore low discharge pressure auto start for shutdown charging pump (s) by taking pump control switch (es) to the Trip" position then releasing switch (es) to the "Auto" position.

d. QQIQ Step 8 b.
2. Reset Si and containment isolation (SEE OPPOSITE PAGE)
b. Stop IIPSI pumps AND place in standby
c. Stop all but one charging pump Page 6 of 17

JUN 0 31988 NUMBER m1E REY. ISSUE /DATE E C A.3.3 SGTR WITHOUT PRESSURIZER Rev. 4 PRESSURE CONTROL STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED 9 VERIFY St FLOW NOT REQUIRED: MANUALLY OPERATE CHARGING DE SI PUMPS AS NECESSARY.

o Check RCS subcooling based or.

core exit thermocou ales . 0DIQ ECA 3.1, GREATER TIIEN 12' F SGTR WIDI LOSS OF REACTOR (SEE OPPOSITE PAGE COOLANT SUBCOOLED FOR ADVERSE CONTAINMENT) RECOVERY DESIRED. Step 1.

o Check RVLIS pkr.um indicadon .

GREATER DIAN 15 %

10 CIIECK VCT MAKEUP CONTROL SYSniM:

a. Check blender ratio set at - a. Set blender ratio fcr greater GREATER TilAN RCS RCS baron concentration.

BORON CONCESTtATlON

b. Check controls set for- b. Set controls for automatic.

AtJTOMATIC

r. 7 CAUTIONt LETDOHN SHOULD BE ESTABUSHED REGARDLESS OF PRESSURIZER LEVFL. ITIS ALLOWABLE TO LET PRESSURIZER LEVEL Go OFFSCALE LDW hS LONG AS RVi2S PLENUM INDICATION IS MAINTAINED AT OR GREATER THAN 100 % AND RCS SUBCOOUNG IN MAINTAINED GREATER THAN 32
  • F.

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11 ESTABLISliIITDOWN: l ;

s. Check the following: a. Establish the required conditions.
1. RVLIS plenum indication -

GREATER TifAN 100 %

2. RCS subcooling -

GREATER DIAN 32' F (SEE OPPOSITE PAGE 1 FOR ADVERSE COSTAINMENT) l l

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Page 7 of 17 l

JUN 0 31988

. ' NUMBER MU REY. ISSUE /DATE ECA 3,3 SGTR WITHOUT PRESSURIZER Rey, 4 PRESSURE CONTROL STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT05TAINED

^

11 b. Establish letdown t, If containment pressure is I (SEE OPPOSTTE PAGE) less than $ PSIO,  !

i T1IEN establish alternate letdow n by perform the following: l l (

1. Rewt Containment HCP WL Rrlays. I i

l 2. Open DH TV 1841, drain header tnp valve.

3. Reset solenoid in blowdown room for ,

drain header trip valve, DH TV 1847.

4. Line up drain heada to VCT: *
a. Oose DH.V.408, drain header t to PDT. c
b. Open CH V.383, drain header  !

to VCT, 1

5. Cose breaker for DH MOV.310.  !
6. Open one loop drain MOV.
7. Throule DH MOV 010 to maintain  :

PRZR level.  !

8. Cose CH MOV.292B and i CH MOV 292C.  !

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! 12 ALIGN CHARGING PUMP l SUCi1ON TO VCT: ,

a. Open CH MOV.257 l

. b. Oose BA MOV.373  :

, c. Check BA MOV.32. CLOSED c. Cow BA MOV.32. I i \

13 EQUALIZE CHARGING AND  :

LETDOWN FLOW-
a. Take nunual control of charging 1 and leidown
b. Control charging and wal wawr l injection flows to equalletdown L and walleakoff flows l i i l f

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4 i JUN 0 31988 mista mu REv. iSSimeATE { 1 ECA 3.3 SGTR WITHOUT PRESSURIZER Rev,4 1 PRESSURE CONTROL '-

STEP ACTION / EXPECTED RESPONSE RESPONSE NOTOBTAINED ,

i l 14 CHECK IF DIESEL GENERATORS l i SilOULD DE STOPPED: I i

a. Verify ac emergency buses energized - a, Try to restore off. site power to ROTil TKAINS BY OFF. SITE both trains.  :

POWER (SEE OPPOSITE PAGE) l BUSES 8,4 and 5 E SQ.I restored,  !

ASD 111EN load the following equipment BUSES 9,6 and 7 on the ac emergency buses: '

l.MCC 5.

2. Control air compressors. '
3. Semi. vital 120 V buses. ,

, 4. Cosed cooling system pumps.  :

5. Battery charger I A.
6. One component cooling water pump.
7. One service, water pump for each diesel generator.

] 8. E service water is supplied to  ;

l RHR heat exehanger.. >

j T1(EN use at lekst two sersice

] w ater pumps, ,

7. Start CARFANS as required to limit containment pressure and l i  !

temperature. 1 i I I;

b. Stop any unloaded dicsci I ,

generator and place it in standby l  !

(SEE OPPOSITE PAGE) t i

15 MINIMIZE SECONDARY SYSTEM  ;

CONTAMINA110N.  ;

j o Check ruptured SG(s) isolated l o Close condenser high level dump to DWST ( CD V 634 )

16 CilECK RCP SEAL RETURN STOP AFFECED RCP(s).

FLOWS GREATER T11AN O.2 GPM i

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Page 9 of 17

J'JN 0 31988 NUMBER TrIU REVIISSUE/DATE E C A-3.3 SGTR WITHOUT PRESSURIZER Rev.4 PRESSURE CONTROL STh l ACTIbN/ EXPECTED RESPONSE RESPONSE NOT OBTALNED

'dCK RCP COOLING SYSTEMS: ESTADLISH NORMAL COOLING FLOW TO RCPs, iCP CCW System flow - NORMAL IN ACCCRDANCE WITH, '

ACP sealinjection flow - NORMAL NOP 2.81, OPERATION OF COMPONENT COOLING SY3'EM, AM2 NOP 2.61.

SEAL WATER STARTUP NORMAL OPERATION.

18 CHECK SOURCE RANGE DETECTORS ENERGIZED:

a. Check intermediate range flux - a. Continue with step 19, LESS THAN 5 x 10'10 AMPS WHEN less than 5 x 1010 AMPS, T11EN do steps 18 b, e and d.
b. Verify source range detectors - b. Manually energize source range ENERGIZED detectors.
c. Transfer nuclear flux recorders ,

to source range scale

d. Transfer SUR meters to source range 19 SHUT DOWN UNNECESSARY PLANT EQUIPMENT
a. Stop one main feedwater pump
b. Stop one condensate pump
c. Place standby heater drain pump in TPO
d. Place running heater drain pump in TPO Page 10 of 17

JUN 0 31988 ,

, NUMBER TTI1E REV. ISSUE /DATE E C A.3.3 SGTR WITHOUT PRESSURIZER Rev.4 l PRESSURE CONTROL ,

i t

S*IEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE: PLANT STAFF SHOULD DECIDE WHETHER TO REPAIR PRZR PRESSURE CONTROL SYSTEMS OR CONTINUE WITH THIS PROCEDURE. IF PRZR PRESSURE CONTROL IS ESTABUSHED, FURTHER RECOVERY SHOULD CONTINUE WITH E 3, STEAM GENERATOR TUBE RUPTURE, STEP 27.

l 20 VERIFY ADEQUATE SHUTDOWN MARGIN:

a. Sample RCS
b. Sample ruptured SG(s)
c. Check shutdown margin - c. Borate RCS as necessary.

ADEQUATE 21 MAINTAIN RCP SEAL INJECTION '

FLOW:

a. 'Ihrottle seal supply valves, CH V 354A through CH V-354D, to maintain labyrinth differential pressure between 5" and 10" of water pressure 22 INITIATE RCS COOLDOWN TO 300* F (277' F FOR ADVERSE CONTAINMENT)
a. Maintain cooldown rate in RCS cold legs -

LESS THAN 100* F / HR

b. Check CRDM fans - ALL RUNNING b. Start all availr!. .- CRDM fans.
c. Dump steam to the condenser c. Manually M locally dump steam from intact SG(s) from intact SGs using one 2 more of the following:
1. Atmos pheric vent valve.
2. Terry Turbine steam sup sly valves.
3. Hog Jet steam supply v.tves.

IE no intact so available, THEN use faulted SG.

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Page 11 of 17 1

JUN 0 3198E:

NUMBER TITLE REV. ISSUE /DATE EC A 3.3 SGTR WITHOUT PRESSURIZER Rev.4 PRESSURE CONTROL

(

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED I

r ,

CAUTION: RCS AND RUPTURED SG(s) PRESSURES MUST BE ofAINTAINED LESS THAN THE RUPTURED SG(s) SAFETY VALVE SETPOINT. .

I L J 23 CONTROL CHARGING FLOW TO MAINTAIN RCS SUBCOOLING:

a. Check RCS subcooling based on a. Increase chr.rging flow to maintain core exit thermocouples - subcooling greater than 52" F.

GREATEP.THAN 52' F (SEE OPPOSITE PAGE (SEE OPPOSITE PAGE for adverse containment)

FOR ADVERSE CONTAINMENT) QQIQ Step 24.

b. Check any ruptured SG wide b. Control charging flow to maintain range level RCS pressure at ruptured SG(s)

, LESS THAN 72 % pressure.

(68 % FOR ADVERSE QQIQ Step 24.

CONTAINMENT) 24 CHECK IF RCS COOLDOWN SHOULD BE STOPPED:

a. Check RCS temperatures a. RETURN IQ Step 20.

LESS THAN 300* F (277* F FOR ADVERSE CONTAINMENT)

b. Stop RCS cooldown 25 CHECK RCS PRESSURE GQIQ STEP 28 GREATER THAN 300 PSIG (1310 PSIG FOR ADVERSE CONTAINMENT)

Page 12 of 17

JUN 0 31988 NUMBER TTILE REV. ISSUE /DATE E C A-3.3 SGTR WITHOUT PRESSURIZER Rev.4 PRESSURE CONTROL STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT OBTAlbTD 26 CHECK RUlrrURED SG(s) WIDE REFILL RUlrTURED SG(s) TO 69 %

RANGE LEVEL USING AUX FEEDWATER FLOW.

GREATER THAN 63 %

(67 % FOR ADVERSE IE EITHER ONE OF THE CONTAINMENT) FOLLOWING CONDITIONS OCCURS, THEN STCP AUX FEEDWATER FLOW TO TIIE RUlrTURED SG(s) o Ruptured SG pressure (s) decreases in an uncontrolled manner.

.QB o Ruptured SG pressure (s) increases to 935 PSIG.

Page 13 of 17

JUN 0 31988 NUMBER TTILE REV ISSUE /DATE EC A 3.3 SGTR WITHOUT PRESSURIZER Rev.4 PRESSURE CONTROL STEP ACTION /EXPECIED RESPONSE RESPONSE NOT OBTAlbTD r 7 CAUTION: o STEAhi SHOULD NOT BE RELEASED FROhi ANY RUPTURED SG IF WATER AfAY EXIST IN ITS STEAbfl2NE.

o RUPTURED SG PRESSURE ofay DECREF.E RAPIDLY WHEN STEAbi IS RELEASED.

L J NOTE: THE UPPER HEAD REGION AfAY VOID DURING RCS DEPRESSURIZATION IF RCPs ARE NOT RUNNING. THIS bfAY RESULT IN A RAPIDLY INCREASING PRZR LEVEL.

27 DEPRESSURIZE RCS AND RUNURED SG(s) TO 300 PSIG (1310 PSIG FOR ADVERSE CONTAINMENT)

a. Perform the following:

o Decrease charging and increase letdown to initiate backfdl 2

l o Initiate blowdown from ruptured SG(s) 2 o Dump steam from ruptured SG(s)

b. Verify RVLIS slenum- b. Increase RCS pressure by 100 PSIG GREADiR TF AN 84 % REBJRN IQ Step 27 a.
c. Check RCS pressure - c. RETURN IQ Step 26.

LESS THAN 300 PSIG (i310 PSIG FOR ADVERSE CONTAINMENT)

d. Stop RCS depressurization Page 14 of 17

JUN031999

, NUMBER TTT12 REY. ISSUE /DATE ECA 3.3 SGTR WITHOUT PRESSUi4IZER Rev.4 PRESSURE CONTROL STEP ACDON/ EXPECTED RESPONSE RESPONSE NOT OBTAINED I

28 CHECK IF RHR SYSTEM CAN BE l PLACED IN SERVICE:

a. Check RCS temperature - a. RETURN IQ Step 22.

LESS THAN 300* F (277* F FOR ADVERSE CONTAINhtENT)

b. Check RCS pressure - b. RETURN T_Q Step 26.

LESS THAN 300 PSIG (i310 PSIG FOR ADVERSE CONTAINhtENT)

b. Place RHR in service IN ACCORDANCE WITH NOP 2.91, RHR SYSTEh! PLACING SYSTEh!

IN SERVICE 29 VERIFY ADEQUATE SHUIDOWN hiARGIN:

a. Sample RCS
b. Sample ruptured SG(s)
c. Check shutdown margin - c. Borate RCS as necessary.

ADEQUA'E 30 INTTIATE RCS COOLDOWN TO COLD SHU'IDOWN:

a. Maintain cooldown rate in RCS cold legs -

LESS THAN 100* F / IIR l

b. Use RHR system
c. Dump steam to the condenser c. hianually DR locally dump steam from mtset SG(s) from intact SGs using one QR more of the following:
1. Atmos 3heric vent valve.
2. Terry "urbine steam sup )ly valves.
3. Hog Jet steam supply va ves.

IE no intact SG available ASD RHR system EQIin service,

'DIEN use faulted SG.

Page 15 of 17

A JUN 0 31988 NUMBER TTILE REV. ISSUE /DATE ECA 3.3 SGTR WITHOUT PRESSURIZER Rey, 4 PRESSURE CONTROL STEP ACTION / EXPECTED RESPONSE RESPONSE h0T OBTAINED 31 CONTROL CHARGING FLOWTO hiAINTAIN RCS SUBCOOLING:

a. Check RCS subcooling based on a. Increase charging Dow to maintain core exit thermocouples - subcooling greater than 52* F.

GREATER THAN 52* F (SEE OPPOSITE PAGE (SEE OPPOSITE PAGE for adverse containment)

FOR ADVERSE CONTAINMENT) QQIQ Step 32.

b. Check any ruptured SG wide b. Control charging now to maintain rang" 'evel - RCS pressure at ruptured SG(s)

LESS THAN 72 % pressure.

(68 % FOR ADVERSE GQIQ Step 32.

CONTAINMENT)

c. Check ruptured SG(s) wide range c. Decrease charging flow to stablize level- level. Maintain RCS subcooling STABLE 2 DECREASING greater than 52* F.

(SEE OPPOSITE PAGE for adverse containment) 32 CHECK IF RCPs MUST BE SHUTDOWN:

a. Check the following: a. QQIQ Step 33.

o Number 1 seal differential-LESS THAN 275 PSIG E

o Number 1 sealleakoff Dow-LESS THAN 0.2 GPM b, Stop affected RCP(s) 33 CHECK RCS TEMPERATURE RETURN IQ S'IliP 29.

LESS THAN 200* F 34 EVALUATE LONG TERM PLAhT STATUS:

a. Maintain cold shutdown conditions
b. Consult plant engineering staff END Page 16 of 17

JUN 0 31988 REY. ISSUE /DATE Rev. 4 FOLDOUT Em ECA-3.3 PROCEDURE

1. 31 REINTTIATION CRITERIA Manually operate charging OR SI pumps ir ucessary, IE either condition listed below occurs:

o RCS subcooling based on core exit thermocouples - LESS MAN 32* F.

o RVLIS plenum indication - LESS THAN 15 %

2. RED PAN

SUMMARY

a. SUBCRrrICALLY - Nuclear power greater than 5%.
b. CORE COOLING - Core exit thermocouples greater than 1200 F.
c. IIEAT SINK - Wide range level in all SGs less than 63%

(67% for adverse containment)

AER total feedwater flow less than 320 GPM.

d. INTEGRITY - Cold leg temperature decreases greater than 100* F in last 60 minutes Ab'R RCS cold leg temperature less than 231' F.
e. CONTAINMENT- Containment pressure greater than 40 PSIG.
3. SECONDARY INEGRITY CRrrERIA QQ IQ E 2, FAULTED STEAM GENERATOR ISOLATION, Step 1, unless SG is needed for RCS cooldown, IE either of the following conditions occur:

o Any SG is decreasing in an uncontrolled manner Ab32 has EQIbeen isolated.

2 o An SGiscompletelydepressurized has EQT been isolated.

4. AM SUPPLY MAKEUP CRTERION Start makeup to DWST before level decreases to 54,000 gallons.

1 P

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Page 17 of 17

AUG 3 0 SE F-0.1 S.UBCRITICALITY AUG. 1986 GO TO F R. S .1 POWER RANGE NO LESS THAN

= ves E N'.l.

I INTERMEDIATE NO RANGE SUR - $

ZERO OR GO TO

/ N E G ATIV E YES INTERM EDI ATE FR S.2 NO l \.

RANGE SUR MORE NEG ATIVE THAN 0.2 DPM YES l -

NO SOURCE RANGE ENERGl2ED CSF SAT YES

.(3 GO TO FR S.2 NO SOURCE RANGE SUR ZERO OR N EG ATIVE YES CSF SAT I

i

_ - . . . _ _ - - - _ _ . _ _ _ _ . - ~ . _ _ . - _ _ _ _ . _ _ _ . . . _ _ _ _ - _ -_____ _ _____ _ _-___ ____ -- -

AIJG 3 0 P48 F-0.2 CORE COOLING AUG. 1986 GO TO F R . C .1 NO CORE EXIT TCs LESS THAN 1200'F YES ,

GO TO

(, I FR.C.2 NO CORE EXIT TCs LESS TH AN 700'F YES O

.c3 GO TO F R.C.3 RCS SUBCOOLING NO BASED ON CORE EXIT TCs GREATER THAN 32'F YES

(

C5F SAT

AUG 3 0 ISM i

F-0.3 .

HEAT SINK ^" 2 AUG. 1986 E ATER NO SGs GREATER GO TO THAN 320 GPM YES FR H.1 WIDE RANGE

~

LEVEL IN AT NO LEAST ONE SG GREATER THAN 63% (67 % PRESSURE IN NO 999 ~

FOR ADVERSE YES ALL SGs LESS CONTAINMENT) THAN 1034 PSIG GO TO YES FR H.2 I

's . I WIDE RANGE NO 999 LEVEL IN ALL SGs LESS THAN GO TO 69 % YES FR H.3 l

l PRESSURE IN OOO

- ALL SGs LESS -

THAN 985 PSIG GO TO YES FR H.4 l

I WIDE RANGE LEVEL IN ALL NO 999 l SGs GREATER 0 THAN 63% (67 % '

FOR ADVERSE YES [

CONTAINMENT)

I CSF SAT

FEB 0 51988 F-0.4 RCS INTEGRITY aEv. 2 NOTE: IF LOCA IS IN PROGRESS AND RCS PRESSURE IS LESS THAN 300 PSIG, THEN DO NOT GO TO FR P.1 ALL RCS NO PRESSURE COLD LEG TEMPERATURE POINTS TO RIGHT OF LIMIT A YES GO TO

,p ALL RCS COLD LEO TEMPERATURES NO MMM GREATER THAN 231*F (236*F FOR ADVERSE YES GO TO EXCESSIVE J k ONT AIN MENT) N .1 I

, COOLDOWN ALL RCS COLD LEG '

TEMPERATURES NO OO GREATER THAN 261*F (266*F FOR ADVERS'2 GO TO YES TEMPERATURE CONTAINMENT) FR P.2 DECREASE IN NO -

ALL RCS COLD LEGS LESS THAN i 100'F IN THE LAST YES 60 MINUTES CSF SAT ALL RCS COLD LEG TEMPERATURES NO E GREATER THAN231*F (236*F FOR ADVERSE GO TO YES NO CONTAINMENT) FR P.1 EXCESSIVE q I l g COOLDOWN RCS NO OOO PRESSURE LESS THAN GO TO 380 PSIG YES FR.P.2 l

i TE iPERATURE GREATER THAN 315' F YES l g CSF SAT

AUG 3 01986

( ""'

F-0.5 CONTAINMENT AUG. 1986 LESS THAN 40 PSIG YES O T RZ CONTAINMENT NO 3gg PRESSURE LESS THAN O T 35 PSIG -

YES RZ

\.

CONTAINMENT NO MMM N LEVEL LESS THAN 6 FT GO TO

  • YES FR Z.2 CONTAINMENT $$

. R ADI ATION LESS THAN GO TO 10 R/HR YES FR Z.3 CSF SAT

,. . - , - - _ - . - . _ . - , - - - , , . - - - - . - - - . - - , -_ , _ , .-- . , - .,,----_m,,__-, . , , , , , , . , ,

AUG 3 01986 F-0.6 -

INVENTORY "" 2 AUG. 1986 RVLIS NO $eee

- lNDICATES UPPER HEAD TO FULL 100% YES F R.I.3

. . . . 3 GO TO NO F R. I.1 PRESSURIZER -

LEVEL LESS THAN 86%

YES PRESSURIZER NO gggggggg LEVEL GREATER THAN 11.5 % YES @m FR.I.2

" "o ieLTES UPPER HEAD a e = .@ GO TO FULL 100% YES F R.I.3 I

CSF SAT

,- -- -- ,, - - , - - - - , . - - , - , . , , , - - -- -n--- ,- , - - -,--,----n--- - - - - - - -

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