ML20065K035
| ML20065K035 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 03/30/1994 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17263A585 | List:
|
| References | |
| ES-.0, ES-0.0, NUDOCS 9404190112 | |
| Download: ML20065K035 (7) | |
Text
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REDIAGNOSIS PAGE.1~of 4-
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5 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER
' TECHNICAL REVIEW PORC' REVIEW DATE
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- PLANT SUPERINTENDENT J/- 9.Jj $
EFFECTIVE DATE CATEGORY 1.0
-REVIEWED BY:
- 9404190i12 94o434 DR ADOCK 05000244 PDR
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REV: 9 ES-0.0 REDIAGNOSIS PAGE 2 of 4
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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.
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REV: 9 ES-0.0 REDIAGNOSIS PAGE 3 of 4
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STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED NOTE:
.o. FOLDOUT page should be open and monitored periodically, This procedure should only be used if SI is in service or is o
greater than 4 psig or CNMT radiation is greater than 10+05 R/hr.
1 Check If Any S/G Secondary Side Is Intact
- a. Check pressures in all S/Gs -
IF NOT, THEN the following applies:
o IE main steamlines NOT isolated, THEN you should be O'
in E-2, FAULTED STEAM GENERATOR ISOLATION.
OR-LE main steamlines isolated, o
THEN you should be in ECA-2.1, UNCONTROLLED DEPRESSURIZATION OF BOTH STEAM GENERATORS.
2 Check If S/G Secondary Side Verify faulted S/G isolated unless Is Intact:
needed for RCS cooldown:
o Pressure in both S/Gs - STABLE o Steamlines OR INCREASING o Feedlines Pressure in both S/Gs - GREATER o
THAN 100 PSIG IF NOT THEN you should be in E-2, FAULTED STEAM GENERATOR ISOLATION,.
Step 1 O
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EOPr flTLE:
REV: 9 "-
ES-0.0 REDIAGNOSIS.
PAGE 4'of 4 ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED STEP 3 Check If S/G Tubes Are You should be in an E-1 or ECA-1 Ruptured:
series procedure.
o ANY S/G LEVEL INCREASING IN AN UNCONTROLLED MANNER
-OR-o ANY S/G WITH HIGH RADIATION 4 You Should Be In An E-3 Or ECA-3 Series Procedure
-END-7 O
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TITLE:
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9-ES-0.O.
REDIAGNOSIS PAGE.~1 of'l-5 ES-0.0 APPENDIX LIST TITLE PAGES 1)
FIGURE MIN SUBCOOLING 1
2)
FOLDOUT 1
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REV: 9
.ES-0.0 REDIAGNOSIS PAGE 1 of 1 O
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FIGURE MIN SUBCOOLING NOTE:
Subcooling Margin = Saturation Temperature From Figure Below [-] Core Exit T/C Indication RCS PRESSURE (PSIG) 2500
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CORE EXIT SATURATION TEMPERATURE (*F)
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LOP:
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ES-0.0 REDIAGNOSIS PAGE 1 of 1 f)
V FOLDOUT PAGE 1.
RCP TRIP CRITERIA If BOTH conditions listed below occur, THEN trip both RCPs:
a.
SI pumps - AT LEAST TWO RUNNING b.
RCS pressure minus maximum 6/G pressure - LESS THAN 175 PSIG
[400 psig adverse CNMT) 2.
SI ACTUATION CRITERIA IE ANY condition listed below occurs, THEN actuate SI and go to E-0, REACTOR TRIP OR SAFETY INJECTION, Step 1:
RCS subcooling based on core exit T/Cs - LESS THAN 0*F USING o
FIGURE MIN SUBCOOLING
-OR-o PRZR level - LESS THAN 5% [30% 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.
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).
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