ML17262A897

From kanterella
Jump to navigation Jump to search
Rev 9 to EOP AP-CCW.2, Loss of CCW During Power Operation.
ML17262A897
Person / Time
Site: Ginna Constellation icon.png
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

EOP: TITLE REV: 9 AP-CCW.2 LOSS OF CCW DURING POWER OPERATION 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 05000244 920605'DR ADOCK P . PDR

yJ 4

2 I

p l

i'

EOP: TITLE:

REV' AP-CCW.2 LOSS OF CCW DURING POWER OPERATION 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 Annunciator A-13 COMP COOLING SURGE TANK LO LEVEL 41.24,

~

lit, or

b. Annunciator A-22 CCW PUMP DISCHARGE LO PRESS 60 PSI, lit, or
c. Annunciator A-17, MOTOR OFF, RCP, CCP, lit, or Annunciator d.

15 GPM, lit A-9, or RHR PUMP COOLING WATER OUTLET LO FLOW

e. Annunciator A-6, FLOW 15 GPM, lit or CONT SPRAY PUMP COOLING WATER OUT LOW Annunciator A-14, SAFETY INZ PUMPS COOLING WATER OUT LO FLOW 25 GPM, lit or gi Annunciator A-7 (A-15),

OR LO FLOW 165 GPM RCP 125'F, litlAor(1B) CCW RETURN HI TEMP

h. Annunciator A-24 (A-32), RCP lA (1B) OIL LEVEL +'.25, lit.

C 4 EOP: TITLE:

REV 9 AP-CCW.2 LOSS OF CCW DURING POWER OPERATION 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: Perform the following:

o Annunciator A-17, Motor Off RCP a. Verify auto start of standby CCW CCP - EXTINGUISHED pump or start manually.

o Both CCW pump breaker white b. IF Annunciator A-22, CCW pump disagreement lights discharge lo press 60 psi LIT, EXTINGUISHED THEN check closed CCW to RHR HXs (MOV-738A and MOV-738B).

EOP: TITLE REV: 9 AP-CCW.2 LOSS OF CCW DURING POWER OPERATION 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 a. Open RMW to CCW surge tank APPROXIMATELY 50% AND STABLE (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.

~e EOP: TITLE:

REV: 9 AP-CCW.2 LOSS OF CCW DURING POWER OPERATION 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.

3 Check CCW To Both RCPs: IF CCW lost to RCP(s), THEN:

o Annunciator A-7 (A-15), RCP 1A a. Trip the Rx.

(1B) CCW return Hi temp or low flow 165 gpm 125'F alarm- b. Trip affected RCP(s).

EXTINGUISHED

c. Go to E-O, REACTOR TRIP or o RCP motor bearings temperature SAFETY INJECTION.

(PPCS address GD-RCPS OR RCP temperature monitor RK-30A recorder) - 5 200'F 4 Check CCW Valve Alignment Align CCW valves as necessary.

NORMAL (Refer to Attachment CONTROL ROOM CCW ALIGNMENT DURING POWER OPERATION)

M 'E I

Cs

EOP:

REV: 9 AP-CCW.2 LOSS OF CCW DURING POWER OPERATION 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 a. IF abnormal increase in CNMT INCREASING NOTICEABLY sump level, THEN:

l) Direct HP Tech to sample sump A for chromates.

2) Prepare to make CNMT entry to check for CCW leak.
b. RCP oil levels - NOT INCREASING b. IF any RCP oil level increasing uncontrollably, THEN:
1) Close CCW to and from affected RCP(s), (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.

l J

I

EOP:

REV: 9 AP-CCW.2 LOSS OF CCW DURING POWER OPERATION PAGE 7 of 8 STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 6 Check For CCW Leakage In AUX IF no leakage indicated in AUX BLDG: BLDG, THEN:

o Aux Bldg sump pump - INCREASED a. Direct HP Tech to sample CCW Hx START FREQUENCY SW outlet for chromates,

-OR- b. Go to step 10.

o Waste holdup tank level UNEXPLAINED INCREASE

-OR-o Aux Bldg - VISUAL LEAKAGE IDENTIFIED 7 Establish - THE SOURCE OF THE CCW LEAKAGE AND ISOLATE 8 Verify CCW Surge Tank Level IF CCW surge tank level NOT Normal: approximately 50%, THEN open RMW to CCW surge tank, MOV-823, and start o CCW surge tank level APPROXIMATELY 50%

a RMW pump to fill to approximately 50%.

CCW surge tank 9 Direct HP To Sample For Chromates 10 Verify CONDITIONS PERMIT IF shutdown required, THEN refer to CONTINUED POWER OPERATION, 0-2.1, NORMAL SHUTDOWN TO HOT (Refer to Technical SHUTDOWN.

Specification Section 3.3.3).

i EOP:

REV: 9 AP-CCW.2 LOSS OF CCW DURING POWER OPERATION 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 a. IF problem NOT corrected or leakage NOT found or isolated, THEN return to Step 4.
b. Return to -APPROPRIATE OPERATING PROCEDURE

-END-

EOP:

REV: 9 AP-CCW.2 LOSS OF CCW DURING POWER OPERATION PAGE 1 of 1 ATTACHMENT CONTROL ROOM CCW ALIGNMENT DURING POWER OPERATION o CCW to RHR Hx A MOV-738A Closed o CCW to RHR Hx B MOV-738B Closed o CCW from RCP 1A Thermal Barrier AOV-754A Open o CCW from RCP 1B Thermal Barrier AOV-754B Open o CCW from Ex Ltdn Hx Isol Vlv AOV-745 Closed o CCW Surge Tk Vent RCV-017 Open o CCW to CNMT Isol Vlv MOV-817 Open o CCW to Rx Supp Clrs Isol Vlv MOV-813 Open o CCW from Rx Supp Clrs Isol Vlv MOV-814 Open o CCW to RCP 1A Isol Vlv MOV-749A Open o CCW to RCP 1B Isol Vlv MOV-749B Open o CCW from RCP 1A Isol Vlv MOV-759A Open o CCW from RCP 1B Isol Vlv MOV-759B Open o NRHX Ltdn Outlet Temp (Controller) TCV-130 Auto

t' gfg, \