ML20205S712

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Rev 4 to Emergency Operating Procedure EOP-01-LRP, Level Restoration Procedure
ML20205S712
Person / Time
Site: Brunswick  Duke Energy icon.png
Issue date: 11/30/1987
From: Bishop E
CAROLINA POWER & LIGHT CO.
To:
Shared Package
ML20205K904 List: ... further results
References
EOP-01-LRP, EOP-1-LRP, NUDOCS 8811110148
Download: ML20205S712 (11)
v • d • e


Text

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yrt 7" CAROLINA P0kTR & LIGHT COMPANY BRtHSWICK STEAM ELECTRIC PLANT UNIT 0 LEVEL RESTORATION PROCEDURE EMERGENCY OPERATING PROCEDURE: E0P-01-LRP VOLUME VI 1

Rev. 004 h

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  1. d' jst'

,g;;;;;v-Approvtd By: ~/ Date: // M 8)

General Manage Q ' d Manager - Operations Page 1 of 11

' 8811110148 881025 PDR ADOCK 0b000324 P PDR

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n. - - _

LIST OF EF FECTIVE PAGES E0P-01-LRP Pa ge (s). Revision 1-11 4 BSEP/Vol. V1/20P-01-I.RP Page 2 of 11 gey, 4

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A. TITLE - Level Restoration Procedure B. ENTRY CONDITIONS Reactor vessel level CANNOT be maintained above 0 inches.

C. OPERATOR ACTIONS

1. IFt
a. All control rods are NOT fully inserted AND ,
b. The reactor is NOT shut down OR boron has been injected.

THEN EXIT this procedure and ENTER the "Level / Power Control" flow i

path. L

2. VERIFY ON or START two cendensate pumps and one condensate booster I pump.  !

~

3. MAKE UP from CST to hotwell as necessary to maintain hotwell level above -7 inches.

4 START both RHR loops in the LPCI mode.

5. ESTABLISH service water flov to both RHR heat exchangers (OP-43). ,
6. START both core spray pumps. (
7. MAXIMIZE CRD flow for coolant injection by perforwing the following [

stepst L I

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a. IF the Reactor Bsilding is NOT accessible. THEN CONTINUE in i tEis procedure at Step C.7. I l

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b. IF the Reactor Building is accessible, THEN PERFORM the i To~11oving steps:

(1) IF two CRD punp operation is desired AND both CRD suction l TTiter AND both CRD drive water filters are available,  ;

THEN CONTIEUE in this procedure at Step C.7.b.3. '

(2) IF one CRD pump operation is desired g g limited to one pump operation. THEN PERFORM the following steps t (a) DISPATCH an A0 to unlock and close CRD Pump l

Condensate Return Isolation Valve, COR-V1 (located at CST). [

, _ (b) g the standby CRD pump suction filter is E [

available THEN OPEN CRD Pumps Suction Filters Bypass l Valve, CO-V E (

BSEP/Vol. VI/EOP-01-LRP Page 3 of 11 Rev. 4 (

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~ (c) IF the standby CRD pump suction filter is available. l

'lTEN PLACE the standby filter in service.

~ (d) VERIFY or PLACE the CRDHS Remote Flow Controller, C11(C12)-FC-R600, to "MAN" and THROTTLE the following valves, as recessary, to maintain charging water pressure greater than or equal to 1000 psig but as lov as possible

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1) The in-service Flow Control Valve, C11(C12)-7002A(F002B).

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2) Drive Vater Pressure Control Valve, C11(C12)-F003.
3) Charging Vater Header Throttle Valve, C11(C12)-F034 (Reactor Building, master flow control area, 20 ft East).

_ (e) CONTINUE in this procedure at Step C.8

~ (3) IF two CRD pump operation is desired AND both CRD cuetion IIlters AND both CRD drive water filte E are available.

THEN PERTOT.M the following stepst (a) START second CRD pump.  !

t

~ (b) DISPATCH an A0 to unlock and close CRD Pump l Condensate Return Isolation Valve, COR-V1 (located at  !

CST). ,

I' (c) PLACE both A g B CRD pump suction filters in ,

service.

_ (d) OPEN CRD Pumps Suetion Filter Bypass Valve, C0+V306.

_ (e) PLACE both A AND B CRD drive water filters in f service.  ;

i

~ (f) VERITY or PLACE the CRDHS Remote Flow j Controller, C11(C12)-TC-R600, to "MAN" and THROTTLE the following valves, as necessary, to maintain I charging water pressure greater than or equal to l 1300 psig but as lov as possible 1

~

1) The in-service Flow Control .'

Valve, C11(C12)-F002A(F002B).

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2) Drive Vater Pressure Control Valve, C11(C12)-F003.
3) Charging Vater Header Throttle Valve, C11(C12)-F034 (Reactor Building, master flow control area, 20 ft East).

BSEP/Vol. VI/EOP-01-LRP Page 4 af 11 Rev. 4

(g) CONTINUE in this procedure at Step C.8 l

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c. IF the Reactor Building is NOT~ accessible. THEN PERFORM the U llowing stepst

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(1) DISPATCH an AO to unlock and close CRD Pump Condensate Return Isolation Valve COR-V1 (located at CST).

~ (2) VERITY or PLACZ the CRDHS Remote Flow Controller.

C11(Cl2)-FC-R600, to "MAN" and THROITLE the following valves, as necessary to maintain charging water pressure greater than or equal to 1000 psig but as lov as possiblet

~ (a) The in-service Flow Control Valve.

C 11(C12)-F002A(F002B) .

_ (b) Drive k'ater Pressure Control Valve. Cll(C12)-F003.

(3) IF the CRD pump trips on low suction pressure due to high EID suction filter dP. THEN PERFORM the following stepst

- (a) THROTTLE CLOSED the in-service Flow Control Valve.

C 11 (Cl 2)-F002A(F002B) .

(b) RESTART the CRD pump.

~ (c) THROTTLE OPEN the in-servlee Flow Control Valve.

Cll(C12)-F002A(F002B), as necessary, to maintain the charging water pressure above the pressure at which the CRD pump tripped but as lov as possible.

~

8. MAKE UP from MUD tank to CST as necessary to maintain CST level above 10 feet.

~

9. IF less than two low pressure systems are running AND lined up for Ejection.THENENTERLEP-01."AlternateCoolantInIIetion Procedure." in the LEP section of this End Path Manual and EXECUTE it concurrently with this procedure.
10. IF vhile executing this procedure, reactor vessel level CANNOT be determined OR reactor vessel flooding is required. THEN IIIT~this procedure aU ENTER the "Floeding Procedure" in the'E Ettngency i

section of this End Path Manual.

11. IF while executing this procedure. the ADS timer initiates

, (annunciator AUTO DFPRESS TIMERS INITIATED (A-03 5-1] alarms). THEN RESET the ADS timer as necessary to prevent automatic initiation and i PERFORM the following stepst J

a. PLACE the ADS LOCIC A Ihm! BIT B21C-S5A switch to "INHIBIT."
b. PLACE the ADS LOGIC B INHIBIT E21C-S5B switch to "INHIBIT."

BSEP/Vol. VI/EOP-01-LRP Page 5 of 11 Rev. 4

-c.- - , , - - - . . - = e-7,-mn--

~~~

c. VERIFY AUTO DEPRESS TIKERS INITIATED annunciator (A-03 5-1) is clear.

~~~

12. MONITOR reactor pressure and water level and CONTINL'E in the section indicated in the following table.

REACIOR PktSSURE  !

1100-350 psig 350-120 psig 120-0 psig Increasing Section 1 Section 2 Section 3 REACTOR page 7 page 8 page 9 VESSET.

LEVEL Decreasing Section 4 Section 5, page 10 page 11 BSEP/Vol. VI/EOP-01-LRP Page 6 of 11 Rev. 4 cx

Section 1 - Reactor vessel level increasing, reactor pressure greater than 350 psig.

1. IF while executing the following steps, the reactor vassel level trend should reverse OR reactor pressure changes region, THEN RETURN to Step 12 on page 6 W this procedure. l
2. RESTORE and MAINTAIN reactor vessel level above 0 inches.

~

3. WHEN reactor vessel level can be maintained above +45 inches, THEN ITliTORM the following steps:
a. E ADS has been inhibited THEN RESTORE ADS as follows:

/ (1) PLACE the ADS LOGIC A INHIBIT B21C-S5A switch to "AUTO."

Ind. Ver.

/ (2) PLACE the ADS LOGIC B INHIBIT B21C-S5B switch to "AUTO."

Ind. Ver.

~ (3) VERIFY AUTO DEPRESS TIMERS INITIATED annunciator (A-03 5-1) is clear.

~

b. EXIT this procedure and RETURN to End Path Procedure 2A or lt as appropriate.

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l BSEP/Vol. VI/EOP-01-LRP Page 7 of 11 Rev. 4

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. l Section 2 - Reactor vessel level increasing, reactor pressure less than 350 psig AND greater than 120 psig.

l

1. IF, while executing the following steps, the reactor vessel level  !

trend should reverse OR reactor pressure changes region, THEN RETURN to Step 12 on page 6 oT this procedure.

i  :

2

~~~ IF HPCI or RCIC is available. WHEN reactor vassel level reaches i TT62 inches, THFN CONTINUE in this section at Step 5.

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3. IF reactor pressure is NOT increasing, THEN CONTINUE in this section at Step 5.

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4 IF reactor pressure is increasing AND HPCI and RCIC are NOT  ;

Unilable, THEN PERFORM the follov % stepst

a. IF the MSIVs are open THEN RAPIDLY DEPRESSURIZE the reactor with the bypass valve opening jack.

~

b. IF the reactor CANNOT be depressurized to the main condenser, YIIEN manually O M 1 ADS valves.

(1) IT any ADS valve CANNOT be opened THEN OPEN SRVs UNTIL seven valves are open.

(2) IF less than three SRVs are open AND reactor pressure is greater than 50 psig above suppression chamber pressure.

THEN ENTER the "Emergency Depressurization Procedur(" in the Contingency section of the End Path Manual and EXECUTE it concurrently with this procedure.

5. WHEN reactor vessel level can be maintained above +162 inches. THEN FETTORM the following stepst
a. IF ADS has been inhibited. THEN RESTORE ADS as follows:

/ (1) PLACE the ADS LOGIC A INHIBIT B21C-S5A switch to "AUTO."

Ind. Ver.

/ (2) PLACE the ADS LOGIC B INHIBIT B21C-S5B switch to "AUTO."

Ind. Ver.

~~~ (3) VERIFY AUTO DEPRESS TIMERS INITIATED annunciator (A-03 5-1) is clear.

b. EXIT this procedure nd RETURN to End Path Procedure 2B or 1M as appropriate.

BSEP/Vol. VI/EOP-01-LRP Page 8 of 11 Rev. 4

. i Section 3 - Reactor vessel level increasing, reactor pressure less than i 120 psig. #

1. IF vhile executing the following steps, the reactor vessel level I~end should reverse OR reactor pressure changes region. THEN RETURN to Step 12 on page 6 of this procedure. I
2. IF reactor pressure is NOT increasing THEN CONTINUE in this section i at Step 4
3. IF reactor pressure is increasing, THEN PERFORM the following steps:

f

a. IF the MSIVs are open, THEN RAPIDLY DEPRESSURIZE the reactor L with the bypass valve opening jack. (

~~~

b. IF the reactor CANNOT be depressurized to the main condenser, [

TEEN manually OPEN all ADS valves.  !

(1) IF any ADS valve CANNOT be opened, T_ HEN OPEN SRVs UNTIL

[

j seven valves are open. t (2) IF less than three SRVs are open AND reactor pressure is  !

greater than 50 prig above suppression chsmber pressure.

THEN ENTER the "Emergency Depressurization Procedure" in  ;

the Contingency section of the End Path Fanual and EXECUTE t it concurrently with this procedure. '

4

-~~ WHEN reactor vessel level can be maintained above +162 inches. THEN FYITORM the following steps t i 1

a. IF ADS has been inhibited, THEN RESTORE ADS as follows:

I

/ (1) PLACE the ADS LOGIC A INHIBIT B21C-S$A switch to "AUTO." I i

Ind. Ver. L L

/ (2) PLACE the ADS LOGIC B INHIBIT B21C-S5B switch to "AUTO."

Ind. Ver.

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""~ (3) VERIFY AUTO DEPAESS TIMERS INITIATED annunciator L (A-03 5-1) is clear. [

b. EXIT thic procedure and RETURN to End Path Procedure 2B or 1M as ppropriate.  !

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BSEP/Vol. VI/EOP-01-LRP Page 9 of 11 Rev. 4 i t

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Section 4 - Reactor vessel level decreasing, reactor pressure greater then 120 psig.

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1. IT while executing the following steps, the reactor vessel level trend should reverse g reactor pressure changes region. THEN RET 11RN to Step 12 on page 6 of this procedure. I L
2. START HPCI, RCIC, and any MP or LP injection system. '

r

3. IF no low pressure system is running and lined up for injection, W EN START pumps per LEP-01, "Alternate Coolant Injection i Procedure," in the LEP section of this End Path Manual and EXECUTE '

it concurrently with this procedure.  !

(

4 IF reactor vessel level decreases to 0 inches OR ~

is belew 0 inches,  !

H EN PERFORM the following stepst

{

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a. IF no high pressure, low pressure, or alternate coolant l

injection system is available, THEN EXIT this procedure and f ENTER the "Steam Cooling Proced W in the Contingency section of the End Path Manual. [

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b. l IF any high pressure, low pressure, or alternate coolant j injection system is available THEN PERFORM the following l steps:

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                                                                                                                                                            • I CAUTION j g NOT DEPRESSlRIZE below 120 psig 17tESS motor-driven pumps suf ficient to I maintain reactor vessel level are running and available for injection.

t I

(1) IF the MSIVs are open THEN RAPIDLY DEPRESSURIZE the I reactor with the bypass valve opening jack.  !

(2) IF the reactor CANNOT be depressurized to the main k condenser, THEN manually OPEN all ADS valve 1, l i

(a) IF any ADS valve CANNOT be opened. THEN OPEN SRVs f M TIL seven valves are open, j

_ (b) H less than three SRVs are open g reactor pressure is greater than 50 psig above suppression chamber l pressure, THEN ENTER the "Emergency Depressurization '

Procedure" in the Contingency section of the End Path  !

Manual and EXECUTE it concurrently with this i procedure. "

_ (3) VMEN reactor pressure is decreasing THEN RETURN to ,

Step 12 on page 6 of this procedure. I i

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BSEP/Vol. VI/EOP-01-LRP Page 10 of 11 Rev. 4 f

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. . l Section $_ - Reactor vessel level decreasing, reactor pressure less than 120 psig. l 1

1.

IF while executing the following steps, the reactor vessel level f IIend should reverse OR reactor pressure changes region, THEN RETURN ,  ;

i d

to Step 12 on page 6 ~T this procedure. ,

2. PERFORM LEP-01, "Alternate Coolant Injection."

3.

IF reactor pressure is increasing, THEN PERFORM the following steps '

3

IF the MSIVs are open, THEN RAPIDLY DEPRESSURIZE the reactor .

a.

~~~ wIth the bypass valve opening jack.  !

J

b. IF the reactor CANNOT be depressurized to the main condenser, i TEEN manually OPEN all ADS valves. i J l

.1 (1) IF any ADS valve CANNOT be opened, THEN OPEN SRVs UNTIL i seven valves are open.  !

l IF less than three SRVs are open AND reactor pressure is l (2)

~~~ greater than 50 psig above suppreisTon chamber pressure, i THEN ENTER the "Emergency Depressurization Procedure" in r tee"Contingency section of the End Path Manual and EXECUTE j it concurrently with this procedure, .

4 IT reactor vessel level decreases below 0 inches, THEN EXIT this  :

procedure and ENTER the "Spray Cooling Procedure" in the Contingency  !

section of the End Path Manual.  !

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