ML17262A897
| ML17262A897 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 05/06/1992 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17262A884 | List: |
| References | |
| AP-CCW.2, NUDOCS 9206160409 | |
| Download: ML17262A897 (18) | |
Text
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AP-CCW.2 TITLE LOSS OF CCW DURING POWER OPERATION REV:
9 PAGE 1 of 8 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE PLANT SUPERINTENDENT EF EC VE DATE CATEGORY 1.0 REVIEWED BY:
9206160409 920605'DR ADOCK 05000244 P
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AP-CCW.2 TITLE:
LOSS OF CCW DURING POWER OPERATION REV' PAGE 2 of 8 A.
PURPOSE This procedure provides the steps necessary to respond to a loss of CCW while the plant is at power.
B.
ENTRY CONDITIONS/SYMPTOMS 1.
SYMPTOMS The symptoms of LOSS OF CCW DURING POWER OPERATION are; a ~
b.
Annunciator A-13 COMP COOLING SURGE TANK LO LEVEL 41.24, lit, or Annunciator A-22 CCW PUMP DISCHARGE LO PRESS 60 PSI, lit, or c.
Annunciator A-17, MOTOR OFF,
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Annunciator A-9, RHR PUMP COOLING WATER OUTLET LO FLOW 15 GPM, lit or Annunciator A-6, CONT SPRAY PUMP COOLING WATER OUT LOW FLOW 15 GPM, lit or Annunciator A-14, SAFETY INZ PUMPS COOLING WATER OUT LO FLOW 25 GPM, lit or Annunciator A-7 (A-15),
RCP lA (1B)
CCW RETURN HI TEMP OR LO FLOW 165 GPM 125'F, lit or Annunciator A-24 (A-32),
RCP lA (1B) OIL LEVEL +'.25, lit.
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AP-CCW.2 TITLE:
LOSS OF CCW DURING POWER OPERATION REV 9
PAGE 3 of 8 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION IF CCW FLOW TO A RCP IS INTERRUPTED FOR GREATER THAN 2 MINUTES OR IF EITHER RCP MOTOR BEARING TEMPERATURE EXCEEDS 200'F, THEN CCW SHOULD BE CONSIDERED LOST TO THAT RCP, REFER TO STEP 3.
1 Check CCW Pump Status:
o Annunciator A-17, Motor Off RCP CCP
- EXTINGUISHED o
Both CCW pump breaker white disagreement lights EXTINGUISHED Perform the following:
- a. Verify auto start of standby CCW pump or start manually.
- b. IF Annunciator A-22, CCW pump discharge lo press 60 psi LIT, THEN check closed CCW to RHR HXs (MOV-738A and MOV-738B).
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AP-CCW.2 TITLE LOSS OF CCW DURING POWER OPERATION REV:
9 PAGE 4 of 8 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
CCW surge tank level should be verified locally in the Aux Bldg, if possible.
2 Verify CCW Surge Tank Level Normal:
a.
CCW surge tank level APPROXIMATELY 50%
AND STABLE a.
Open RMW to CCW surge tank (MOV-823) and start a
RMW pump and perform the following:
IF surge tank level is stable or increasing, THEN go to Step 3.
IF surge tank level can NOT be maintained greater than 10%,
THEN 0
- 1) Trip the Rx.
- 2) Trip the RCPs.
- 3) Place both CCW pumps in pull stop.
4)
Go to E-O, REACTOR TRIP or SAFETY INJECTION.
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AP-CCW.2 TITLE:
LOSS OF CCW DURING POWER OPERATION REV:
9 PAGE 5 of 8 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION IF AN RCP(S)
IS TRIPPED DUE TO A LOSS OF CCW, SEAL INJECTION SHOULD BE MAINTAINED TO THE IDLE RCP(S)
UNTIL RCS TEMPERATURE IS LESS THAN 200'F, OR UNTIL CCW IS RESTORED.
o Annunciator A-7 (A-15),
RCP 1A (1B)
CCW return Hi temp or low flow 165 gpm 125'F alarm-EXTINGUISHED o
RCP motor bearings temperature (PPCS address GD-RCPS OR RCP temperature monitor RK-30A recorder) 5 200'F IF CCW lost to RCP(s),
THEN:
- a. Trip the Rx.
- b. Trip affected RCP(s).
c.
Go to E-O, REACTOR TRIP or SAFETY INJECTION.
4 Check CCW Valve Alignment NORMAL (Refer to Attachment CONTROL ROOM CCW ALIGNMENT DURING POWER OPERATION)
Align CCW valves as necessary.
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AP-CCW.2 LOSS OF CCW DURING POWER OPERATION REV:
9 PAGE 6 of 8 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
o An evaluation must be made to determine if operation may continue while investigating a
CCW leak in containment.
o Operation may continue with the reactor support coolers isolated.
If this occurs, notify higher supervision.
5 Check For CCW Leakage In CNMT:
a.
CNMT sump A levels NOT INCREASING NOTICEABLY
l) Direct HP Tech to sample sump A for chromates.
b.
RCP oil levels NOT INCREASING
- b. IF any RCP oil level increasing uncontrollably, THEN:
(MOVs 749A and 759A for "A" RCP; MOVs 749B and 759B for "B" RCP).
- 2) Trip Rx.
- 3) Trip affected RCP(s).
4)
Go to E-O, REACTOR TRIP or SAFETY INJECTION.
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AP-CCW.2 LOSS OF CCW DURING POWER OPERATION REV:
9 PAGE 7 of 8 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 6
Check For CCW Leakage In AUX BLDG:
o Aux Bldg sump pump INCREASED START FREQUENCY
-OR-o Waste holdup tank level UNEXPLAINED INCREASE IF no leakage indicated in AUX
- BLDG, THEN:
Go to step 10.
-OR-o Aux Bldg - VISUAL LEAKAGE IDENTIFIED 7
Establish - THE SOURCE OF THE CCW LEAKAGE AND ISOLATE 8 Verify CCW Surge Tank Level Normal:
o CCW surge tank level APPROXIMATELY 50%
IF CCW surge tank level NOT approximately 50%,
THEN open RMW to CCW surge tank, MOV-823, and start a
RMW pump to fillCCW surge tank to approximately 50%.
9 Direct HP To Sample For Chromates 10 Verify CONDITIONS PERMIT CONTINUED POWER OPERATION, (Refer to Technical Specification Section 3.3.3).
IF shutdown required, THEN refer to 0-2.1, NORMAL SHUTDOWN TO HOT SHUTDOWN.
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AP-CCW.2 LOSS OF CCW DURING POWER OPERATION REV:
9 PAGE 8 of 8 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
Refer to 0-9.3, NRC STATE AND COUNTIES IMMEDIATE NOTIFICATION, for reporting requirements.
11 Complete NOTIFICATION TO HIGHER SUPERVISION 12 Establish Further Guidance:
a.
Problem or leakage CORRECTED
- b. Return to -APPROPRIATE OPERATING PROCEDURE
- a. IF problem NOT corrected or leakage NOT found or isolated, THEN return to Step 4.
-END-
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AP-CCW.2 LOSS OF CCW DURING POWER OPERATION REV:
9 PAGE 1 of 1 ATTACHMENT CONTROL ROOM CCW ALIGNMENT DURING POWER OPERATION o
CCW from RCP 1A Thermal Barrier o
CCW from RCP 1B Thermal Barrier o
CCW from Ex Ltdn Hx Isol Vlv o
CCW Surge Tk Vent o
CCW to Rx Supp Clrs Isol Vlv o
CCW from Rx Supp Clrs Isol Vlv o
NRHX Ltdn Outlet Temp (Controller)
MOV-738A Closed MOV-738B Closed AOV-754A Open AOV-754B Open AOV-745 Closed RCV-017 Open MOV-817 Open MOV-813 Open MOV-814 Open MOV-749A Open MOV-749B Open MOV-759A Open MOV-759B Open TCV-130 Auto
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