ML17250B297
| ML17250B297 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 06/16/1993 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17250B293 | List: |
| References | |
| ES-.0, ES-0.0, NUDOCS 9307080221 | |
| Download: ML17250B297 (14) | |
Text
EOP:
ES-O.O REDIAGNOSIS REV:
8 PAGE 1 of 4 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW'ORC REVIEW DATE PLANT SUPERINTENDENT EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:
9307080221 930628 PDR ADOCK 05000244 P
4I 1,
S
ES-O.O REDIAGNOSIS REV:
8 PAGE 2 of 4 A.
PURPOSE This procedure provides a mechanism to allow the operator to determine or confirm the most appropriate post accident recovery procedure.
B.
ENTRY CONDITIONS/SYMPTOMS 1.
ENTRY CONDITIONS This procedure is entered based on operator judgement.
EOP:
~ 0 REDIAGNOSIS REV:
8 PAGE 3 of 4 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
o FOLDOUT page should be open and monitored periodically.
o This procedure should only be used if SI is in service or is required.
o Adverse CNMT values should be used whenever CNMT pressure is greater than 4 psig or CNMT radiation i.s greater than 10+
R/hr.
1 Check If Any S/G Secondary, Side Is Intact a.
Check pressures in all S/Gs ANY S/G STABLE OR INCREASING
- a. IF a controlled cooldown is in
- progress, THEN GO TO Step 2.
IF NOT, THEN the following applies:
o IF main steamlines NOT
- isolated, THEN you should be in E-2, FAULTED STEAM GENERATOR ISOLATION.
-OR-o IF main steamlines
- isolated, THEN you should be in ECA-2.1, UNCONTROLLED DEPRESSURIZATION OF BOTH STEAM GENERATORS.
2 Check If S/G Secondary Side Is Intact:
Verify faulted S/G isolated unless needed for RCS cooldown:
o Pressure in both S/Gs
- STABLE OR INCREASING o
Pressure in both S/Gs GREATER THAN 100 PSIG o
Steamlines o
Feedlines IF NOT THEN you should be in E-2, FAULTED STEAM GENERATOR ISOLATION, Step 1
ES-O.O REDIAGNOSIS REV:
8 PAGE 4 of 4 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 3
Check If S/G Tubes. Are Ruptured:
o ANY S/G LEVEL INCREASING IN AN UNCONTROLLED MANNER You should be in an E-l or ECA-1 series procedure.
-OR-o ANY S/G WITH HIGH RADIATION 4
You Should Be In An E-3 Or ECA-3 Series Procedure
-END-
0
EOP $
ES-O.O T!TLE$
REDIAGNOSIS REV:
8 PAGE 1 of 1 ES-O.O APPENDIX LIST TITLE PAGES 1)
FIGURE MIN SUBCOOLING 2)
FOLDOUT
EOP:
ES-O.O T!TLE:
REDIAGNOSIS REV:
8 PAGE 1 of 1 FIGURE MIN SUBCOOLING NOTE:
Subcooling Margin = Saturation Temperature From Figure Below [-] Core Exit T/C Indication S
PRESSURE (PSIG)
RC 2500 2400 2300 2200 2100 2000 1900 1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0
20 RCS PRESSURE INCREHENTS 20 PSIG SUBCOOLED REGION INADEQUATE SUBCOOLING REGION ADVERSE CNHT TEHPERATURE INCREHENTS 10'F NORMAL CNHT 0
250 300 350 400 450 500 550 600 650 700 CORE EXIT SATURATION TEHPERATURE ('F)
I C
1, 0
EOP:
ES-O.O TITLE:
REDIAGNOSIS REV:
8 PAGE 1 of 1 FOLDOUT PAGE 1.
'CP TRIP CRITERIA IF BOTH conditions listed below occur, THEN trip both RCPs:
a.
SI pumps AT LEAST TWO RUNNING b.
RCS pressure minus maximum S/G pressure LESS THAN 175 PSIG
[400 psig adverse CNMT]
2 ~
SI ACTUATION CRITERIA IF ANY condition listed below occurs, THEN actuate SI and go to E-O, REACTOR TRIP OR SAFETY INJECTION, Step 1:
o RCS subcooling based on core exit T/Cs LESS THAN O'F USING FIGURE MIN SUBCOOLING
-OR-o PRZR level LESS THAN 54
[,304 adverse CNMT]
AND RCS subcooling based on core exit T/Cs LESS THAN 20'F USING FIGURE MIN SUBCOOLING
-OR=
o Any automatic SI setpoint is reached 3 ~
SI PUMP AUTO SWITCHOVER CRITERION WHEN BAST level decreases to 104, THEN ensure SI pump automatic switchover to RWST.
4 ~
AFW SUPPLY SWITCHOVER CRITERION IF CST level decreases to less than 5 feet, THEN switch to alternate AFW water supply (Refer to ER-AFW.1, ALTERNATE WATER SUPPLY TO AFW PUMPS)
~