Rev 2 to Emergency Operating Procedure FR-C.1, 'Response ...

. _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _

JUN 3 1988c.

NUMBER TTlu REV. ISSUE /DATE,

FR C.1 RESPONSE TO INADEQUATE CORE COOLING Rev. 2*

. _ _

A. PURPOSE

nis procedure provides actions to restore core cooling.

B. SYMPTOMS OR ENTRY CONDITIONS

This procedure is entered fmm F-0.2, CORE COOLING Critical Safety Function Status Tree,on either RED condition.

i

.

Page 1 of 9

80102502N h$000 13PDR ADOCK PDR

1 P,

JUN 3 1988.

NUMBER TIT 12 REY. ISSLTJDATEFR C.1 RESPONSE TO INADEQUATE CORE COOLING Rev.2 ;,

.

I

.J

STEP ACT10N/ EXPECTED RESPONSE RESPONSE NOT OBTAINED-

r 7CAUTION 1 IF THE KW:T LEVEL DECREASES TO LESS THAN 130,D0

GALLONS, THE SI SYSTEM SHOULD BE ALJGNED FOR\

RHR RECIRCULA7 ION USib'G ES 13, TRANSFER TO RHR |RECIRCULATION

J||L

||

1 VERIFY S1 VALVES IN PROPER hiANUALLY ALIGN VALVES AS |Eh1ERGENCY ALIGNhiENT NECESSARY. j2 VERIFY SI FLOW IN ALL TRAINS: START PUbiPS AND ALIGN VALVES

AS NECESSARY.o Check charging pump flow

indicators - TRY TO ESTABLISH ANY OTTIERINDICATE FLOW 111G11 PRESSURE INJECTION

SOURCE OR PATTI:o Check llPSI pump Ah1P meters -

GREATER TliAN 115 AhtPS o Start metering pump and adjust fornuxtmum speed.

o Check LPSIpump AhiPmeters-GREABiR T11AN 60 AhiPS o IJne up for fill headerinjection:

I

a. Open all four loop fill !header hiOVs. !

i

b. Open fill header flow control ;

valve (FH FCV 295) and bypassvalve (Fli htOV 344). |

c. Ensure charging pumps running. i

3 CliECK RCP SUPPORT SYSTEhtS TRY TO ESTABLISil SUPPORTAVAILABIA SYSTEhtS. i

r

o Check Component Cooling Water jSystem -IN SERVICE j

}o Check RCP seal water supply and I

retum system - 1

IN SERVICE

4 CliECK CORE EXIT QQIQ STEP 7. 4

111ERhiOCOUPLES . ILESS T11AN 1200' F !

||

|

Page 2 of 9

JUN 3 1988,

NUMBER Tm2 REV. lSSLTJDATE I

FR C.1 RESPONSE TO INADEQUATE CORE COOLING Rev.2 !*

!

STEP ACT10N/ EXPECTED RESPO!!,E RESPONSE NOT OBTAINED_

5 CHECK RVLIS PLENUMINDICABON:

a. Check indication - a. E increasinJ,GREATER Di&N 15 % IEEN RET JRNIQ Step 1.

,

E NOIincreasing, |DIEN QQIQ Step 6. j

b. RERJRN IQ procedure and Istep in effect !

l

6 CHECK CORE EXIT iMERMOCOUPIES:

a. Check temperature - a. E decreasing,LESS TilAN 700' F TIEN RETURNIQ Step 1.

E EQIdecreasing.TlIEN QQIQ Step 7.

NOTE: THIS PROCEDURE SHOULD BE CONTINUED WHILE I

OBTAINING HYDROGEN SAMPLE IN STEP 7.

i!

7 CIECK CONTAINMENTIIYDROGENCONCENTRADON:

a. Obtain a containment air sam31e

with the Post Accident SampingSystem

b. Check liydrogen concentration - b. Corsult plant engineering staff for |LESS DIAN 6.0 % IN DRY AIR additional recovery actions.

QQIQ Step 8.

i

!

Page 3 of 9,

JUN 31988.

NUMBER TTT12 REV. ISSLTJDATE i

F R.C.1 RESPONSE TO INADEQUATE CORE COOLING Rev. 2.

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINTD

ir

j7CAUDON: o MONITOR DWST LEVEL. START MAKEUP TO DWST BEFORE

LEVEL DECREASES TO S4,000 GALLONS. '

o A FAULTED OR RUPTURED SG SHOULD NOT BE USEDIN SUBSEQUENT STEPS UNLESS NO INTACT SG 15A VAILABLE.

L J

8 CIIECK INTACT SG LEVELS:

a. Check wide range levels - a. Increase total AUX feedwater flowGREATER DIAN 63 % to restore wide range level in at least(67 % FOR ADVERSE one SG to greater than 63 %CONTAINMENT) (67 % for adverse containment).

IE total AUX feedwater flow isless than 320 GPM,IHEN 00IQ Step 16OBSERVE NOTE PRIORTO STEP 16.

b. Control AUX feedwater flow to ,

maintain wide range levels between63 % and 69 %

|!(67 % and 69 % for adversecontamment)

9 CIIECK RCS VENT AND || DRAIN PAniS CLOSED:

ii

a. Check power to PRZR PORY a. Restore power to PRZR PORVblock valves - block valves.AVAIIABIE

i

i

b. Check PRZR PORVs CLOSED b. Manually close PRZR PORVs. |IE any PORV can b'QI be closed,

111EN nunually close its block valve. |c. Check other RCS vent paths - c. Manually OR locally close any open I

CLOSED RCS vent paths.

d. Check drain header ISOLATED d. Close all four loop drainheader MOVs.

e. Checkletdown ISOLA 11ID e. Close letdown isolation valvell>MOV 200

Page 4 of 9

JUN 31988'

---

NUMBER TT!12 REV. ISSUE /DATEFR C.1 RESPONSE TO INADEQUATE CORE COOLING Rev.2

i

S17.P ACT10N/ EXPECTED RESPONSE RESM)NSE NOT OBTAINED ;

NOTE: PARTIAL UNCOVER)NG OF SG TUBES IS ACCEPTABLE IN THEFOLLOWING STEPS.

10 DEPRESSURIZE ALL INTACT SGsAT MAXIMUM RATE: f

Ia. Dump steam to condenser at a. Dump steam at maximum rate I

maximum rate using the fo!!owing:;

o Atmospheric vent valve. i

o Terry Turbine steam supply valves.'

b. Check SG pressures DECREASING b. E b'QI dec:-asing,,

111EN QQIQ Step 16OBSERVE NOTE PRIOR ;

TO STEP 16.'

11 CliECK IF RCPs SilOULD BESTOPPED:

a. Check at least two hot leg a. E RCS hot leg temperatunstemperatuns - decreasing,LESS T11AN 350' F TilEN RETURMIQ Step 8,

|E b'QIdecreasing,IliEN GQIQ Step 16.,

OBSERVE NOTE PRIORTO STEP 16. !

b. Stop all RCPs

12 DEPRESSURIZE ALLINTACT SGsTO 50 PSIO:

a. Dump steam to condenser at a.Du steam at ma.dm m ratema.dmum rase usin the following:

o Atmos >heric vent valve.o Terry Tuttine steam supply valves.

,

| Page 5 of 9,

. .. _- . - _ . - - .- ---- .

_ _ _ _ _ _ - _ _ _ _ _ _ __

ww.. o 4J0o.

NUMBER TTI12 REV. ISSt'E/DA1T.FR.C.1 RESPONSE TO INADEQUATE CORE COOLIhu Rev.2

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTALNED

13 VERIFY SI FLOW: CONTINUE EFFORTS TO ESTABLISHSI FLOW,

'

o Cherv kWSTlevel DECREASING'mY TO ESTABLISH ANY OTTIER

% IIIGH PRESSURE INJECTION PAT 1{.

o Check charging line flow IE CORE EXITTIIERMOCOUPLESIndicators INDICATE FLOW LESS TliE 1200* F.

TIIEN RERJRNIQ STEP 12.%lE b'M LESS THAN 1200' F.

o Check HPSI pump AMPS - THEN QQIQ STEP 16,GREATER T11AN 115 AMPS OBSERVE NOTE PRIOR TO ST11P 16.

3o Check LPSI pump AMPS - -

GREATER 1TIAN 60 AMPS

14 CIIECK CORE COOLING:

a. Check core exit thermocouples - a. QQIQ Step 16 OBSERVE NOT2LESS TRAN 1200' F PRIOR TO STEP 16.

b. Check at least two hot leg b. RETURNIQ Step 12.,

Lb 350'F'

c. Check RVLIS slenum indication - c. RETURNIQ Step 12.GREATER H AN 15 % i

i

15 QQIQ E 1,LOSS OF REACIOR OR SECONDARYCOOLANT, S'17.P 12

|

Page 6 of 9

__

_ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

fJUN 3 588

NUMBER "!TT12 REY. ISSUE /DATEF R.C.1 RESPONSE TO INADEQUATE CORE COOLING Rev.2

t

STEP ACTION / EXPECTED RESPONSE RFSPONSE NOT OBTALNED

NOTEt NORMAL CONDITIONS ARE DESIRED BUT NOT REQUIRED FORSTARTING THE RCPs.

16 CHECK CORE EXIT START RCPs AS NECESSARY UNTILTHERMOCOUPLES - CORE EXITTHERMOCOUPLESLESS THAN 1200' F ARE LESS THAN 1200* F.

PERFORM 'n{E FOLLOWING:

a. Try to start an RCP-

1. Place a umper across designatedterminaIs on # 2 horizontal terminalbotrd in upper RCP breakercabinet:

RCP Terminal # Wire #

1 8 to 9 Pl71P2 to Pl71P4

2 8 to 9 Pl72P2 to Pl72P43 8 to 9 Pl73P2 to Pl73P44 8 to 9 P!74P2 to Pl74P4

2. Start oillift pump.3. Open CH TV 240, CH TV 241

and CH TV 334.(scal water return trip valves)

4. Open CC TV-1411(RCP oilcooler CCW rerumtrip valve)

5. Open seal water rerum MOV.6. Start selected RCP.

E core exit thermocouples aregreater than 1200* FM all available RCPs are running,MEN own all PRZR PORVs andblock va,ves.

E core exit the mocouples aregreater than 12(k. FM all PRZR PORVs and blockvalves are open,T11EN open all other RCS vent pathsto containment.

Page 7 of 9

JUN 3 1988

NmSER m REY. ISSUESATE !

F R.C.1 RESPONSE TO INADEQUATE CORE COOLING Rev.2

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED

17 TRY TO LOCALLY DEPRESSI.10ZEALL LNTACT SGs TOATMOSPHERIC PRESSURE:

a. Use any QR allof the following: 3. Use faulted QR ruptured So,

o Atmospheric vent valve

o liog Jet steam supply valves ,

!o Steam supply valves to theauxiliary feedwater pumps

o Steam line "pecker head" ventvalves

18 CHECK IF RCPs SHOULD BESTOPPED:

a. Check at least two hot leg a. QQIQ Step 19.temperatures -LESS TilAN 350* F

b. Stop all RCPs

1. Close all four seal water i

retum MOVs|

2. IE containment pressure isgreater than 5 PSIG,111EN perform the follutig:

a. Close CH W 240, CH TV 241(Seal water retum trip valves),

b. Close CC-W 1411(CCW retum frnm RCP oilcoolers)

e

!

Page 8 of 9

JUN 3 1988

NUMBER TTTLE REV. ISSULDATEF R.C.1 RESPONSE TO INADEQUATE CORE COOLING Rev.2

-

i

STEPf ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED

i

19 VERIFY SI FLOW: CONTINUE EFFORTS TOESTABLISH SI FLOW.

o Check RWSTlevel DECREASINGBtY TO ESTABLISH ANY ODIER

OR HIGH PRESSURE INJECTION PADi. ;

o Check charging line flow indicators - RETURNIQ STEP 16. I

INDICARI FLOW| ,

DE !o Check HPSI pump AMPS -

GREATER THAN 115 AMPS

'

o Check LPSI pump AMPS -GREATER DIAN 60 AMPS

i,

20 CHECK CORE COOLING: RETURNIQ STEP 16. '

o Check RVLIS plenum indication -GREATER THAN 15 %

|o Check at least two RCS hotleg '

temperatues - I

LESS THAN 350' F|

21 GQIQ E 1,LOSS OF REACTOR OR SECObtARYCOOLAST. STEP 12. 1

Eht|

|

l

Page 9 of 9