ML17250B140

Rev 2 to FR-Z.1, Response to High Containment Pressure

ML17250B140
Person / Time
Site:	Ginna
Issue date:	04/09/1990
From:	Widay J ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17250B096	List: ML17250B094 ML17250B099 ML17250B100 ML17250B101 ML17250B102 ML17250B103 ML17250B105 ML17250B106 ML17250B107 ML17250B108 ML17250B109 ML17250B110 ML17250B111 ML17250B112 ML17250B113 ML17250B114 ML17250B115 ML17250B116 ML17250B117 ML17250B119 ML17250B120 ML17250B121 ML17250B122 ML17250B123 ML17250B125 ML17250B126 ML17250B127 ML17250B128 ML17250B129 ML17250B130 ML17250B132 ML17250B134 ML17250B135 ML17250B137 ML17250B138 ML17250B139 ML17250B140 ML17250B141 ML17250B143 ML17261B048 ML17261B049 ML20042E400
References
FR-Z.1, NUDOCS 9004200764
Download: ML17250B140 (13)

Text

EOP:

FR-Z.1 TITLE:

RESPONSE

TO HIGH CONTAINMENT PRESSURE REV 2

PAGE 1 of 7 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE LA SUPERINTE E T Vvv~

EFFE TI E DATE GllltIASTATIgg QA~ NON-QA REVIEWED BY:

CATEGORY 1.0 DA; F.

TlMF c

9004200764 900410 PDR ADOCK 05000244 P.

Fvu DATF TIME'

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FR-Z.1

RESPONSE

TO HIGH CONTAINMENT PRESSURE REV:

2 PAGE 2 of 7 A.

PURPOSE This procedure provides actions to respond to a high CNMT pressure.

B.

ENTRY CONDITIONS/SYMPTOMS 1.

ENTRY CONDITIONS This procedure is entered from:

a.

F-0.5, CONTAINMENT Critical Safety Function Status

Tree, on a RED or ORANGE condition.

FR-Z.1

RESPONSE

TO HIGH CONTAINMENT PRESSURE REV:

2 PAGE 3 of 7 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED NOTE:

Adverse CNMT values should be used whenever CNMT pressure is greater than 4 psig or CNMT radiation is greater than 10

~ R/hr.

1 Verify All CI And CVI Valve Status Lights BRIGHT IP flow path NOT required, THEN manually close CI and CVI valves.

IP valves can NOT be closed, THEN dispatch AO to locally close valves.

(Refer to Attachment CI/CVI).

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FR-Z.1 TITLE:

RESPONSE

TO HIGH CONTAINMENT PRESSURE REV:

2 PAGE 4 of 7 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED CAUTION IF ECA-1.1, LOSS OF EMERGENCY COOLANT RECIRCULATION, IS IN EFFECT, CNMT SPRAY SHOULD BE OPERATED AS DIRECTED IN ECA-1.1, STEP 6, RATHER THAN STEP 2 BELOW.

2 Check If CNMT Spray Is Required:

a.

CNMT pressure

- HAS INCREASED TO GREATER THAN 28 PSIG

b. Verify RWST outlet to SI and CNMT spray pumps - OPEN

~ MOV-896A

~ MOV-896B

c. Verify CNMT spray pumps-RUNNING

d. Verify CNMT spray NaOH addition valves OPEN

~ HCV-836A

~ HCV-836B

e. Verify CNMT spray pump discharge valves - OPEN

~ MOV-860A

~ MOV-860B

~ MOV-860C

~ MOV-860D a.

Go to Step 3.

b. IF in RHR recirculation mode, THEN perform the following:

1) Operate SI pumps and one CNMT spray pump as directed in ES-1.3, TRANSFER TO COLD LEG RECIRCULATION.

2)

Go to Step 3.

c. Manually start pumps.

d. Ensure at least one valve open.

e.

Ensure at least one in each set open.

~ 'MOV-860A or MOV-860B

~ MOV-860C or MOV-860D

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FR-Z.1 TITLE:

RESPONSE

TO HIGH CONTAINMENT PRESSURE REV:

2 PAGE 5 of 7 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 3 Verify CNMT RECIRC Fans Running:

1

a. All fans

- RUNNING

b. Charcoal filter dampers green status lights - EXTINGUISHED

a. Manually start fans.

b. Dispatch personnel to relay room vith relay rack key to locally open dampers by pushing in trip relay plungers.

~ AUX RELAY RACK RA-2 for fan A

~ AUX RELAY RACK RA-3 for fan C

4 Verify MSIVs CLOSED Manually close valves.

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FR-Z.1 TITLE:

RESPONSE

TO HIGH CONTAINMENT PRESSURE REV:

2 PAGE 6 of 7 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED CAUTION o

AT LEAST ONE S/G MUST BE MAINTAINEDAVAILABLEFOR RCS COOLDOWN.

o IF BOTH S/GS ARE FAULTED, THEN AT LEAST 50 GPM PEED FLOW SHOULD BE MAINTAINEDTO EACH S/G.

5 Check If S/G Secondary Side Is Intact:

o Pressure in both S/Gs STABLE OR INCREASING o

Pressure in both S/Gs - GREATER THAN 100 PSIG Isolate feed flov to faulted S/G:

a.

Ensure faulted S/G MDAPW pump discharge valve closed.

~ S/G A, MOV-4007

~ S/G B, MOV-4008

b. Ensure faulted S/G TDAFV flov control valve closed.

~ S/G A, AOV-4297

~ S/G B) AOV-4298

c. Ensure faulted S/G MFV regulating valve and bypass valve closed.

~ S/G A, HCV-466 and HCV-480

~ S/G B, HCV-476 and HCV-481

d. Ensure MFV pump discharge valves closed.

IP valves can NOT be closed, THEN dispatch AO to locally close valves as necessary to isolate flov.

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FR-Z ~ 1

RESPONSE

TO HIGH CONTAINMENT PRESSURE REV 2

PAGE 7 of 7 STEP ACTION/EXPECTED RESPONSE

RESPONSE

NOT OBTAINED 6

Check CNMT Hydrogen Concentration:

a. Consult HP to determine if CNMT hydrogen monitors - OPERATING

b. Verify hydrogen concentration-LESS THAN 0.5X

a. Perform the following:

1) Direct HP to start CNMT hydrogen monitors as necessary.

2) Continue with Step 7.

WHEN CNMT hydrogen monitors operating, THEN verify hydrogen concentration less than 0.5X.

IF NOT, THEN consult TSC.

b. Consult TSC to determine if hydrogen recombiners should be placed in service.

7 Return To Procedure And Step In Effect

-END-

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FR-Z. 1

RESPONSE

TO HIGH CONTAINMENT PRESSURE REV 2

PAGE 1 of 1 FR-Z.1 APPENDIX LIST TITLE PAGES 1)

ATTACHMENT CI/CVI

4 I

f