ML17250B137
| ML17250B137 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 04/09/1990 |
| From: | Widay J ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17250B096 | List:
|
| References | |
| FR-P.2, NUDOCS 9004200761 | |
| Download: ML17250B137 (12) | |
Text
EOP:
FR-P.2 TITLE:
RESPONSE
TO ANTICIPATED PRESSURIZED THERMAL SHOCK CONDITION REV:
2 PAGE 1 Of 5 ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE P
NT SUPERINT ND NT o
EFFECTI E
DATE QA+
NON-QA REVIEWED BY:
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9Oo4io PDR ADDCR 00000244 I,
p PNU CATEGORY 1.0 Gli~liMASTATION S~AR r:
DATE TlViL C'3b/I PL"TFD:
DATE TIME:
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EOP:
FR-P.2 TITLE:
RESPONSE
TO ANTICIPATED PRESSURIZED THERMAL SHOCK CONDITION
.REV:
2 PAGE 3 of 5 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED II NOTE:
o A faulted S/G is any S/G that is depressurizing in an uncontrolled manner or is completely depressurized.
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 RCS Cold Leg Temperatures STABLE OR INCREASING Try to stop RCS cooldown:
- a. Ensure S/G ARVs closed.
- b. Close both S/G MSIVs.
- c. Ensure MFW flow control valves closed.
~ MFW regulating valves
~
MFW bypass valves
- d. Ensure MFW pumps tripped.
- e. IF S/G pressure less than condensate
- pressure, THEN stop all condensate pumps.
- g. Control total feed flow to non-faulted S/G(s) greater than 200 gpm until narrow range level greater than 5X [25X adverse CNMT] in at least one non-faulted S/G.
WHEN S/G level greater than 5X [25X adverse CNMT] in one non-faulted S/G, THEN limit feed flow to stop RCS cooldown.
This Step continued on the next page.
W
EOP:,
FR-P.2 TITLE:
RESPONSE
TO ANTICIPATED PRESSURIZED THERMAL SHOCK CONDITION REV 2
PAGE 5 of 5 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 4
Determine If Additional RCS Cooldown Restrictions Are Required:
a.
Cooldown rate in RCS cold legs-GREATER THAN 100'F IN ANY 60 MINUTES PERIOD b.
RCS cooldown is permitted with the following restrictions:
- 1) Maintain RCS pressure and cold leg temperatures within the limits of Figure C/D LIMITS
- a. Additional restrictions are not required.
Go to Step 5.
- 2) Maintain cooldown rate in RCS cold legs less than 100'F in any 60 minutes period 5
Return To Procedure And Step In Effect
-END-
1
EOP:
FR-P.2 TITLE:
RESPONSE
TO ANTICIPATED PRESSURIZED THERMAL SHOCK CONDITION REV:
2 PAGE 1 of 1
FR-P.2 APPENDIX LIST TITLE PAGES 1)
FIGURE TECH SPEC C/D 2)
FIGURE C/D LIMITS 3)
ATTACHMENT N2 PORVS
4
EOP2 TITLE:
FR-P.2
RESPONSE
TO ANTICIPATED PRESSURIZED THERMAL SHOCK CONDITION REV 2
PAGE 1 of 1
FIGURE TECH SPEC C
D RCS 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
PRESSURE (PSIG)
RCS PRESSURE INCREMENTS 20 PSIG 60'F/HR 100'F/HR ACCEPTABLE REGION FOR RCS REPRESSURIZATION TEMPERATURE INCREMENTS 10'F 0
50 100 150 200 250 300 350 400 450 500 RCS COLD LEG TEMPERATURE ('F)
EOP:
FR-P.2 TITLE:
RESPONSE
TO ANTICIPATED PRESSURIZED THERMAL SHOCK CONDITION REV 2
PAGE 1 of 1 RCS 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
PRESSURE (PSIG)
RCS PRESSURE INCREMENTS 20 PSIG FIGURE C
D LIMITS ACCEPTABLE REGION FOR COOLDOVN TEMPERATURE INCREMENTS 10'F 200 250 300 350 400 450 500 550 600 650 700 RCS COLD LEG TEMPERATURE ('F)
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