ML20034C774
| ML20034C774 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 04/19/1990 |
| From: | PUBLIC SERVICE CO. OF COLORADO |
| To: | |
| Shared Package | |
| ML20034C092 | List: |
| References | |
| AOP-A, NUDOCS 9005100023 | |
| Download: ML20034C774 (3) | |
Text
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AOP-A l
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L Issue 57 i
Pub ll3 FORT ST. VRAIN NUCLEAR CENERATING STATION Page 1 of 2 o
SerVlC9' Pusuc senve:s coasPANY or cotonApo
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TITLE:
MOISTURE IN-LEAKAGE I
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-issue 57 Page 2 or 2 (Al MolSTUftE IN-t_EAKAGE SYMPIOM-ACTIOst MATRtX f
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I SY98PTOMS '
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1.1 8
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irrimary Coolanti e
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ACTIONS
$ Moisture High, I i
IME-9306 or I
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8 IME-9307 on f
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31-058, 3-1 t
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OPERATOR ACTIDW f
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8 1[ Primary Coolant 8 XX XX 1 l
t moistu re level Is abnormetl I
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I known cause, THLg attempt i 1.
i t to Edentify sumsrce or E
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5 an leakage.
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l 1 2.2 1-I ff EES section is I XX t
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' t moisture IMEg establish
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1 I cooling vis rehester. or I
I-l 8 operating ' loop per i
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I SDP 22-01.
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A0P APP A i
Issue 57
& Public FORT ST. VRAIN NUCLEAR GENERATING STATIOIQage 1 of 1 j
VG7 Service
- Pusuc senvoca conePAmy or cotonAoo INTRODUCTION
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l Section A of the Abnormal Operating Procedures deals with water leaks I into the Primary Coolant System.
In the following section, each step of the Abnormal Operating.
l Procedure is discussed to aid the operator in understanding its basis. To facilitate relating each step to its discussion, each AOP step is repeated and underlined to set it off from the discussion that follows.
i.
DISCUSSION OF SYMPTOMS SYMPTOMS 1.1 Primary coolant moisture level high ME-9306 or ME-9307 on 1-05B. 3-1.
OPERATOR ACTION I
2.1 IF primary coolant moisture level is abnormal AND i
l increasing with no known cause. THEN attempt to identify I
source of in-leakage.
l If the rate of moisture increase is low, as would be the
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l case with a small leak, source identification will be I
difficult at best. The operation of the circulator l
auxiliaries should be checked and corrected if that is the l
source of the moisture ingress.
l NOTE: Cooling with a flooded reheater outlined in Step 2.2 l
requires permission of Superintendent of Operations or l
Station Manager.
l 2.2 IF EES section is identified as source of moisture THEN l
establish cooling via reheater of operating loop per l
S0P 22-01.
l This action will isolate the leak and permit continued l
core cooling.
I S0P 22-01 describes the necessary precautions and procedures associated with cooling on a flooded reheater.
FORM 106372 22 3643
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