ML20198C058
| ML20198C058 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 12/14/1998 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17265A479 | List: |
| References | |
| FR-Z.1, NUDOCS 9812210291 | |
| Download: ML20198C058 (7) | |
Text
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FR-Z.1, RESPONSE TO HIGH CONTAINMENT PRESSURE PAGE 1 of 6 ROCHESTER GAS AND ELECTRIC CORPORATION l
GINNA STATION l
CONTROLLED COPY NUMBER 1
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RESPONSIBLE} MANAGER I
/2+/4C EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:
9812210291 981214 7 PDR ADOCK 05000244
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FR-Z.1 RESPONSE TO HIGH CONTAINMENT PRESSURE PAGE 2 of 6 AU 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.
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e ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED STEP I
1 Verify All CI And CVI Valve H flow path M required. THEN Status Lights - BRIGHT manually close CI and CVI valves.
E valves can M be verified closed by MCB indication. THEN dispatch A0 to locally close valves. (Refer to Attachment CI/CVI).
CAUTION IF ECA-1.1, LOSS OF EMERGENCY COOLANT RECIRCULATION, IS IN EFFECT THEN CNMT SPRAY SHOULD BE OPERATED AS DIRECTED IN ECA-1.1, RATHER THAN STEP 2 BELOW.
2 Verify CNMT Spray Actuated:
- a. E in RHR recirculation mode, b)
CNMT spray pumps - OPEN THEN perform the following:
%J e MOV-896A
. MOV-896B spray pump as directed in ES-1.3 TRANSFER TO COLD LEG RECIRCULATION, Step 14.
- 2) Go to Step 3.
b Verify CNMT spray pumps RUNNING
- b. Manually start pumps,
- c. Verify CNMT spray NaOH addition
- c. Ensure at least one valve open.
valves - OPEN
. HCV-836A e HCV-836B
- d. Verify CNMT spray pump discharge
- d. Ensure at least one in each set valves - OPEN open.
. MOV-860A
- MOV-860A or MOV-860B l
. MOV-860B e MOV-860C or MOV-860D
. MOV-860C
. MOV-860D D0 L
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PAGE 4 of 6 i
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1l O ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED STEP I..
3 Verify CNMT RECIRC Fans i
Running:
1
- a. All fans - RUNNING
- a. Manually start fans.
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- b. Charcoal filter dampers green
- b. Dispatch personnel to relay room i
status lights - RXTINGUISHED with relay rack key to locally open dampers by pushing in trip 4
j relay plungers.
1 4
. AUX RELAY RACK RA-2 for fan A
= AUX RELAY RACK RA-3 for fan C 4 Verify MSIVs - CLOSED Manually close valves.
4 4
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PAGE 5 of 6
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ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED STEP CAUTION AT LEAST ONE S/G SHALL BE MAINTAINED AVAILABLE FOR RCS C00LDOWN.
o o IF BOTH S/GS ARE FAULTED THEN AT LEAST 50 GPM FEED FLOW SHOULD BE MAINTAINED TO EACH S/G.
5 Check If S/G Secondary Side Isolate feed flow to faulted S/G:
Is Intact:
- a. Ensure faulted S/G MDAFW pump o Pressure in both S/Gs - STABLE discharge valve closed.
OR INCREASING S/G A, MOV-4007 e
o Pressure in both S/Gs - GREATER S/G B, MOV-4008 e
TRAN 110 PSIG
- b. Ensure faulted S/G TDAFW flow control valve closed.
l)
S/G A. A0V-4297 S/G B, A0V-4298
- c. Ensure faulted S/G MFW regulating valve and bypass valve closed, S/G A HCV-466 and HCV-480 e
. S/G B, HCV-476 and HCV-481
- d. Ensure MFW pump discharge valves closed.
If valves can HOI be closed. THEN dispatch A0 to locally close valves as necessary to isolate flow.
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j ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED STEP 1
(
6 Return To Procedure And Step In Effect
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PAGE 1 of 1.
O,J FR-Z.1 APPENDIX LIST l
TITLE l-1)
ATTACHMENT CI/CVI (ATT-3.0) l I
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