ML20133N335
| ML20133N335 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 01/10/1997 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17264A801 | List: |
| References | |
| FR-C.3, NUDOCS 9701230251 | |
| Download: ML20133N335 (5) | |
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1 REV: 7 FR-C.3 RESPONSE'TO SATURATED CORE COOLING I
PAGE 1 of 5 f3
\\,Q ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER l
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'8 RESPONSIBLS p AGER l 9 7 l
EFFECTIVE DATE 1
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CATEGORY 1.0 l
REVIEWED BY:
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9701230251 970110 PDR ADOCK 05000244 F
i a E0P:
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REV: 7 l ~
FR-C.3 RESPONSE TO SATURATED CORE COOLING l
PAGE 2 of 5 lO l
A.
PURPOSE - This procedure provides actions to restore core coolingT~
l B.
ENTRY CONDITIONS / SYMPTOMS 1.
ENTRY CONDITIONS - This procedure is entered from:
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F-0.2, CORE COOLING Critical Safety Function Status Tree, on a YELLOW condition.
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FR-C.3 RESPONSE.TO SATURATED CORE COOLING l
PAGE 3 of 5 l0 ACTION / EXPECTED RESPollSE RESPO!1SE 110T OBTAIt1ED STEP l
L1QIE:
o If either ECA-3.2. SGTR WITH LOSS OF REACTOR COOLANT - SATURATED l
RECOVERY DESIRED or ES-1.3. TRAt1SFER TO COLD LEG RECIRCULATI0t1 ic in effect. this procedure chould not be performed.
l Adverce CNMT values should be used whenever Ct1MT precoure is l
o greater than 4 psig or Ct1MT radiation ic greater than 10+05 R/hr.
1 Check RER Nonnal Cooling -
Refer to AP-RHR.1. LOSS OF RER.
l NOT IN SERVICE i
i 2 Check RNST Ievel - GREATER Encure SI system aligned for cold-l THAN 28%
leg recirculation using Steps 1 i
through 12 of ES-1.3. TRAt1SFER TO COLD LEG RECIRCULATI0tl.
l 3 Verify SI Flow:
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- a. SI line loop A and B flow
- a. Manually start SI pumps and
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indicatora - CHECK FOR FLOW align valves.
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- b. RCS preocure - LESS THA!1
- b. Go to Step 4.
l 250 poig [465 poig adverse CllMT]
- c. RHR loop flow indicator - CHECK
- c. Manually start RHR pumps and FOR FLOW align valves.
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REV: 7 FR-C.3 RESPONSE'TO SATURATED CORE COOLING l
PAGE 4 of 5 ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED STEP l
CAUTION IF ANY PRZR FORV OPENS BECAUSE OF HIGH PRZR PRESSURE, IT SHOULD BE CLOSED l
AFTER PRESSURE DECREASES TO LESS THAN 2335 PSIG (REFER TO STEP 4B).
1 4 Check PRZR PORVs And Block Valves:
- a. Power to PORV block valves -
- a. Rectore power to block valvec AVAILABLE unlecc block valve was closed to isolate an open PORV:
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- b. PORVs - CLOSED
- b. If PRZR precoure lecc than l
2335 psig. THEN manually cloce PORVs.
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1E any PORV can UDI be closed.
THEN manually close its block valve.
- c. Block valves - AT LEAST ONE OPEN
- c. Open one block valve unlecc it was closed to isolate an open PORV.
- d. Rx veccel head vent valves -
- d. Manually close valves.
l CLOSED e SOV-590 l
e 50V-591 l
e SOV-592 l
. SOV-593 l
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REV: 7 FR-C.3 RESPONSE TO SATURATED CORE COOLING l
PAGE 5 of 5 O
ACTIQti/ EXPECTED RESPO!!SE RESPO!!SE !!OT OBTAIllED STEP 5 Return To Procedure And Step In Effect
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