ML17262A537
| ML17262A537 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 05/10/1991 |
| From: | Mecredy R ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17262A536 | List: |
| References | |
| AP-CR.1, NUDOCS 9107110246 | |
| Download: ML17262A537 (14) | |
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AP-CR. 1 CONTROL ROOM INACCESSIBILITY REV:
11 PAGE 1 of 6 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE T SUPERINT ND NT
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FEC IVE DATE CATEGORY 1.0 REVIEWED.BY:
PDR ADO+K 05000244 9i07ii0246 910619 PDR
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AP-CR.1 CONTROL ROOM INACCESSIBILITY REV: ll PAGE 2 of 6
- A.
PURPOSE This procedure provides the step necessary to place and maintain the plant in a Hot Shutdown Condition in the event that a control roomevacuation is necessary.
B.
ENTRY CONDITIONS/SYMPTOMS 1.
SYMPTOMS The symptoms of CONTROL ROOM INACCESSIBILITY are; a.
Fire in the Control Room, or b.
Smoke in the Control Room, or c.
Noxious Fumes in the Control Room, or d.
Intrusion
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AP-CR.1 CONTROL ROOM INACCESSIBILITY REV 11 PAGE 3 of 6 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
Steps 1 and 2 are immediate action steps.
O 1
Verify Reactor Trip:
o Reactor trip breakers OPEN o
MRPI indicates
- ALL CONTROL AND SHUTDOWN RODS ON BOTTOM o
Neutron flux - DECREASING Manual trip the reactor from the control board.
IF the Rx can NOT be tripped from the Control Room, THEN locally open the reactor trip breakers.
O 2
Verify Turbine Stop Valves CLOSED Manually trip turbine from MCB.
IF turbine can NOT be tripped at the MCB, THEN close both MSIVs.
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AP-CR. 1
'CONTROL ROOM INACCESSIBILITY REV:
11 PAGE 4 of 6 STEP ACTION/EXPECTS) RESPONSE
RESPONSE
NOT OBTAINED 3 Verify That Fire HAS NOT Significantly Damaged The MCB Control Circuits o
MCB -
NO FIRE OR FIRE UNDER CONTROL o
Safety related controls and indications -
NO SIGNIFICANT LOSS OF CONTROLS/INDICATION Perform the following actions:
- a. Close both MSIVs.
- b. Trip both reactor coolant pumps.
- c. Close both PRZR relief valves, PCV-430 (431C).
d.
Proceed to the Appendix R locker, immediately outside the Control Room.
- e. Control Room Foreman and communicator proceed to TSC and refer to SC-100 for report requirements.
- f. Implement procedure SC-3.30.1, ALTERNATIVE SHUTDOWN FOR CONTROL COMPLEX FIRE.
DO NOT continue in this'rocedure.
NOTE:
Refer to SC-100, GINNA STATION EVENT EVALUATION AND CLASSIFICATION.
4 Establish Local Operating Stations (Refer to Attachment A) 5 Establish AFW To The Steam Generatorh:
- a. Start - BOTH MOTOR DRIVEN AFW PUMPS
- b. Verify MDAFW pump flows - LESS THAN 230 GPM
- a. Start the TDAFW pump.
Locally open TDAFW pump steam admission valves at the steam header MOV-3504A, MOV-3505A.
- b. Locally throttle AFW flow.
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AP-CR.1 CONTROL ROOM INACCESSIBILITY REV 11 PAGE 5 of 6 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 6 Establish Charging Flow:
- a. Charging pumps - AT LEAST ONE RUNNING
- a. Start a charging pump.
- b. 'Control charging and letdown-TO MAINTAIN PRESSURIZER LEVEL
-7 Establish Boration Of The RCS To The Xenon Free CSD Condition:
- a. Refer to 0-3.1 -
FOR DETERMINATION OF AMOUNT OF BORIC ACID TO BE ADDED
- b. Start - A BORIC ACID PUMP
- c. Manually open - MOV-350
- d. Stop boration -
WHEN REQUIRED BORIC ACID HAS BEEN ADDED 8
Check SW Pumps AT LEAST ONE RUNNING IN EACH LOOP Start pumps as necessary.
9 Check CNMT Recirc Fans AT LEAST TWO RUNNING Start fans as necessary.
10 Check S/G Levels APPROXIMATELY 350 INCHES Throttle AFW flow as necessary.
ll Check IF THE CONTROL ROOM IS AGAIN HABITABLE Return to Step 5.
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AP-CR.1 CONTROL ROOM INACCESSIBILITY REV 11 PAGE 6 of 6 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 12 Establish Normal Control Room Operations:
- a. Restore
- NORMAL OPERATION OP EQUIPMENT o
Refer to 0-2.2, PLANT PROM HSD TO COLD SHUTDOWN
-OR-o Refer to ES-0.2, NATURAL CIRCULATION COOLDOWN
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AP-CR. 1 TITLE:
CONTROL ROOM INACCESSIBILITY REV:
11 PAGE 1 of 1 ATTACHMENT A Duties of Personnel During a Control Room Evacuation SHIFT SUPERVISOR Will direct overall plant operations and recovery actions.
No specific duty station is assigned but the Shift Supervisor should maintain communication with the various groups working to recover from the evacuation.
CONTROL ROOM FOREMAN Will assist the Head Control Operator in transferring equipment to local control, after completion of the transfer the Control Room Foreman will direct the oper-ator's actions to recover the plant.
HEAD CONTROL OPERATOR Will go to Auxiliary Feedwater pump area taking.operating procedures "0" book, official records; curve book with him and transfer equipment to local control.
CONTROL OPERATOR Will go to the local operating station in the Charging Pump Room.
PRIMARY AUX OPERATOR Will go to the local operating stations in the Boric Acid Tank Room.
SHIFT TECHNICAL ADVISOR Will assist the Head Control Operator while remaining cognizant, of plant conditions.
OTHER PERSONNEL Will assume fire fighting or other duties as directed by the Shift Supervisor or Control Room Foreman.
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