ML17263A257
| ML17263A257 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 04/21/1993 |
| From: | Marlow T ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17263A255 | List: |
| References | |
| AP-CCW.2, NUDOCS 9305140017 | |
| Download: ML17263A257 (11) | |
Text
EOP:
AP-CCW.2 TITLE:
LOSS OF CCW DURING POWER OPERATION REV:
10 PAGE 1 of 8 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION ONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIE DATE PLANT S RINTE DENT EFFECTIVE D TE CATEGORY 1.0 REVIEWED BY:
mO514O0<7 9SOSO5 PDR ADOCK 05000244 F
EOP:
AP-CCW.2 TITLE:
LOSS OF CCW DURING POWER OPERATION REV 10 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.
ENTRY CONDITIONS This procedure may be entered from:
a.
AP-CCW.1, LEAKAGE INTO THE COMPONENT COOLING SYSTEM, when CCW surge tank level decrease indicated at power.
2.
SYMPTOMS The symptoms of LOSS OF CCW DURING POWER OPERATION are; a.
Annunciator A-13 COMP COOLING SURGE TANK LO LEVEL 41.2%, lit, or b.
Annunciator A-22 CCW PUMP DISCHARGE LO PRESS 60 PSI, lit, or c.
Annunciator A-17, MOTOR OFF RCP CCWP, lit, or d.
Annunciator A-9, RHR PUMP COOLING WATER OUTLET LO FLOW 15 GPM, lit or e.
Annunciator A-6, CONT SPRAY PUMP COOLING WATER OUT LOW FLOW 15 GPM, lit or f.
Annunciator A-14, SAFETY INJ PUMPS COOLING WATER OUT LO FLOW 25 GPM, lit or g.
Annunciator A-7 (A-15),
RCP A (B)
CCW RETURN HI TEMP OR LO FLOW 165 GPM 125'F, lit or h.
Annunciator A-24 (A-32),
RCP A (B) OIL LEVEL + 1.25, lit.
EOP:
AP-CCWs2 TITLE:
LOSS OF CCW DURING POWER OPERATION REV 10 PAGE 3 of 8 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION o
IF CCW FLOW TO A RCP IS INTERRUPTED FOR GREATER THAN 2 MINUTES OR IF EITHER RCP MOTOR BEARING TEMPERATURE EXCEEDS 200'F, THEN TRIP THE AFFECTED RCP.
o IF CCW IS LOST, THEN SEAL INJECTION SHOULD BE MAINTAINED TO THE RCP(S)
UNTIL RCS TEMPERATURE IS LESS THAN 200'F, OR UNTIL CCW IS RESTORED.
NOTE: If leakage from the CCW system is indicated, then refer to SC-6, HAZARDOUS AND MIXED WASTE MANAGEMENT AND CONTROL, for guidance.
1 Check CCW Pump Status:
o Both CCW pump breaker white disagreement lights EXTINGUISHED o
Annunciator A-17, Motor Off RCP CCP - EXTINGUISHED Perform the following:
a.
gnsure standby CCW pump running.
- 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).
EOP:
AP-CCW.2 LOSS OF CCW DURING POWER OPERATION REV:
10 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 APPROXIMATELY 504 AND STABLE Perform the following:
a.
Open RMW to CCW surge tank, MOV-823 Start RMW pump(s).
- c. IF surge tank level stable or increasing, THEN go to Step 3.
IF. CCW surge tank level can NOT be maintained greater than 10%,
THEN perform the following:
- 1) Trip the reactor.
- 2) Trip the RCPs.
- 3) Place both CCW pumps in pull stops 4)
Go to E-O, REACTOR TRIP OR SAFETY INJECTIONS
EOP:
AP-CCW.2 TITLE:
LOSS OF CCW DURING POWER OPERATION REV 10 PAGE 5 of 8 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION IF ANY RCP IS TRIPPED, THEN SHUTDOWN MARGIN REQUIREMENTS SHOULD BE VERIFIED (REFER TO 0-3.1, BORON CONCENTRATION FOR XENON FREE ALL RODS IN MOST REACTIVE ROD STUCK OUT SHUTDOWN MARGIN).
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)
< 200'F IF CCW lost to RCP(s),
THEN perform the following:
- 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 AT POWER CCW ALIGNMENT)
Align CCW valves as necessary.
EOP:
AP-CCW.2 TITLE:
LOSS OF CCW DURING POWER OPERATION REV:
10 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.
o Level STABLE o
Sump A pumps OFF
l) Direct HP Tech to sample sump A for chromates.
be RCP oil levels
- STABLE
- b. IF any RCP oil level increasing uncontrollably, THEN perform the following:
l) Trip Reactor.
- 2) Trip affected RCP(s).
(
~ RCP A, MOV-749A and MOV-759A
~ RCP B, MOV-749B and MOV-759B 4)
Go to E-O, REACTOR TRIP OR SAFETY INJECTION.
EOP:
AP-CCW.2 TITLE-LOSS OF CCW DURING POWER OPERATION REV:
10 PAGE 7 of 8 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 6
Check for CCW Leakage In AUX BLDG o
Start frequency of AUX BLDG sump pump(s)
NORMAL (Refer to RCS daily leakage log) o Waste holdup tank level STABLE OR INCREASING AS EXPECTED Dispatch AO to investigate AUX BLDG for CCW leakage.
7 Verify CCW System Leak IDENTIFIED AND ISOLATED Perform the following:
- b. Return to Step 2.
8 Verify CCW Surge Tank Level APPROXIMATELY 504 AND STABLE Perform the following:
a.
Open RMW to CCW surge tank, MOV-823.
- b. Start RMW pump(s).
- c. Restore CCW surge tank level to 50%.
- d. Stop RMW pump and close MOV-823.
9 Direct HP To Sample CCW System For Chromates
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AP-CCW.2 LOSS OF CCW DURING POWER OPERATION REV:
10 PAGE 8 of 8
STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 10 Evaluate Plant Conditions:
a.
CCW system malfunction-IDENTIFIED AND CORRECTED
- a. Return to Step l.
b.
CCW system status adequate for power operation (Refer to Tech Spec Section 3.3.3).
- b. IF shutdown required, THEN refer to 0-2.1, NORMAL SHUTDOWN TO HOT SHUTDOWN.
NOTE:
Refer to 0-9.3, NRC IMMEDIATE NOTIFICATION, for reporting requirements.
11 Notify Higher Supervision 12 Return To Procedure Or Guidance In Effect
-END-
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AP-CCW.2 LOSS OF CCW DURING POWER OPERATION REV 10 PAGE 1 of 1 AP-CCW.2 APPENDIX LIST TITLE PAGES 1)
ATTACHMENT AT POWER CCW ALIGNMENT