ML17250B129
| ML17250B129 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 04/09/1990 |
| From: | Widay J ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17250B096 | List:
|
| References | |
| FR-H.5, NUDOCS 9004200750 | |
| Download: ML17250B129 (5) | |
Text
EOP:
FR-H.5 TITLE
RESPONSE
TO STEAM GENERATOR LOW LEVEL REV 2
PAGE 1 of 5 ROCHESTER, GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC REVIEW DATE SUPERINTEN E
EFFECTIVE DATE QA M NON-QA CATEGORY 1.0 REVIEWED BY:
Gi t DNA STATlON START:
DATE TlViE 004200750 900410 lU PDR ADOCK 05000244J
'- 'P PNU)i
( 'lME'
EOP:
FR-H.5
RESPONSE
TO STEAM GENERATOR LOW LEVEL REV 2
PAGE 2 of 5 A.
PURPOSE This procedure provides actions to respond to a S/G low level condition.
B.
ENTRY CONDITIONS/SYMPTOMS 1.
ENTRY CONDITIONS This procedure is entered from:
a.
F-0.3, HEAT SINK Critical Safety Function Status
- Tree, on a YELLOW condition.
EOP:
FR-H.5 TITLE:
RESPONSE
TO STEAM GENERATOR LOW LEVEL REV 2
PAGE 3 of 5 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION STEAM RELEASES FROM AFFECTED S/G(S)
SHOULD BE MINIMIZED.
NOTE:
o Throughout this procedure "affected" refers to any S/G in which narrow range level is less than 5X [25X adverse CNMT].
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 Identify Affected S/G(s):
a.
Narrow range level - LESS THAN 5X [25X adverse CNMT]
- a. Return to procedure and step in effect.
2 Verify S/G Blowdown Isolation Valves From Affected S/G(s)
CLOSED
~ AOV-5738 for S/G A
~ AOV-5737 for S/G B
Place S/G blowdown valves master switch to CLOSE.
IF valves can NOT be closed
- manually, THEN dispatch AO to locally isolate blowdown.
o S/G A, close V-5701 o
S/G B, close V-5702
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FR-H.5 TITLE:
RESPONSE
TO STEAM GENERATOR LOW LEVEL REV 2
PAGE 4 of 5
STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION AFV FLOV SHOULD NOT ESTABLISHED TO ANY FAULTED S/G THAT HAS BEEN ISOLATED UNLESS NEEDED POR RCS COOLDOVN.
3 Check If Affected S/G(s)
Secondary Side Is Intact:
o Pressure in affected S/G(s)-
STABLE OR INCREASING o
Pressure in affected S/G(s)-
GREATER THAN 100 PSIG IP affected S/G(s) previously identified as faulted, THEN return to procedure and step in effect.
IP affected S/G pressure decreasing in an uncontrolled manner or completely depressurized and has not been previously isolated, THEN go to E-2, FAULTED STEAM GENERATOR ISOLATION, Step 1.
4 Check AFW Flow To Affected S/G(s)
GREATER THAN 50 GPM IF affected S/G(s) wide range level greater than 35 inches
[110 inches adverse CNMT], THEN establish AFV flow as necessary to refill affected S/G(s).
IF affected S/G(s) wide range level less than 35 inches
[110 inches adverse CNMT], THEN establish APV flow to affected S/G(s) at a rate not to exceed 100 gpm.
5 Continue Filling Affected S/G(s) Until Narrow Range Level Greater Than 54
[254 adverse CNMT]
EOP:
FR-H.5
RESPONSE
TO STEAM GENERATOR LOW LEVEL REV 2
PAGE 5 of 5 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 6
Return To Procedure And Step In Effect
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