ML17250B113
| ML17250B113 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 04/09/1990 |
| From: | Widay J ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17250B096 | List:
|
| References | |
| ES-.0, ES-0.0, NUDOCS 9004200686 | |
| Download: ML17250B113 (10) | |
Text
EOP:
ES-0. 0 TITLE:
REDIAGNOSIS REV 7
PAGE 1 of 4 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE NT SUPERI TE DENT EFFECTIVE DATE QA NON-QA I
REVIEWED BY:
9004200686 900410
(
PDR 'DOCK 05000244 P.
PNu CATEGORY 1.0 8INNASTATION START:
DAIE TIViE COMPLETED:
DATE TIME:
I
EOP:
ES-O.O REDIAGNOSIS REV:
7 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:
ES-O.O REDIAGNOSIS REV 7
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 is 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. IP 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 IP main steamlines
- isolated, THEN you should be in ECA-2.1, UNCONTROLLED DEPRESSURIZATION OF BOTH STEAM GENERATORS.
2 Check If BOTH S/Gs Secondary Sides Are Intact o
NO S/G PRESSURE DECREASING IN AN UNCONTROLLED MANNER o
NO S/G COMPLETELY DEPRESSURIZED Verify faulted S/G isolated unless needed for RCS cooldown:
o Steamlines o
Peedlines IF NOT THEN you should be in E-2, PAULTED STEAM GENERATOR ISOLATION, Step 1
EOP:
ES-O.O REDIAGNOSIS REV:
7 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 HANNER You should be in an E-1 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-
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ES-O.O REDIAGNOSIS REV:
7 PAGE 1 of 1
ES-O.O APPENDIX LIST TITLE 1)
FIGURE MIN SUBCOOLING 2)
FOLDOUT PAGES
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ES-O.O TITLE:
REDIAGNOSIS REV 7
PAGE 1 of 1 FIGURE MIN SUBCOOLING NOTE:
Subcooling Margin = Saturation Temperature From Figure Below [-] Core Exit T/C Indication 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
S PRESSURE (PSIG)
RCS PRESSURE INCREMENTS 20 PSIG SUBCOOLED REGION ERSE CNMT ADV NORMAL CNMT INADEQUATE SUBCOOLING REGION TEMPERATURE INCREMENTS 10'F e
200 250 300 350 400 450 500 550 600 650'00 CORE EXIT SATURATION TEMPERATURE ('F)'
EOP:
ES-O.O TITLE:
REDIAGNOSIS REV 7
PAGE 1 of 1
FOLDOUT PAGE RCP TRIP CRITERIA 2 ~
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]
SI ACTUATION CRITERIA IF ANY condition listed below occurs, THEN actuate SX 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 5< [304 adverse CNMT]
AND RCS subcooling based on core exit T/Cs LESS THAN 20'F USING FIGURE MIN SUBCOOLING
-OR-Any automatic SX 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).
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