ML20024B427
| ML20024B427 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/09/1979 |
| From: | Rogers L BABCOCK & WILCOX CO. |
| To: | Geoffrey Miller METROPOLITAN EDISON CO. |
| References | |
| TASK-*, TASK-GB GPU-2509, SOM-II-226, NUDOCS 8307080707 | |
| Download: ML20024B427 (2) | |
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4 March 9,1979
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Mr. C. P. Miller I
S.etion Superintendent Metropolitan Liison Company Port Office Ecx LSO 1
Kiddletown, PA 17057 9
Subject:
Fourth Reacter Coolant P=p Startup Te=pe ature
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Reference:
PS-I-221, "Tourth Reactor Coolant P=p Startup Te=perature,
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dated February 12, 1976
Dear Gary:
As part of B&V's periodic review of applicable operational conditions, Unit II testing results have shown that the ad *-- terperature li=it
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for starting the fourth reacter emlant pump =ay be relaxed tr:an the
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3revio. s requirements. Het-Ed should change the Unit II operating limits t.ocument for the fourth remeter coolant pu=p start. It abould state that the required reactor coolant systess te=perature be I. 50C*F.
- Flov anessureunent results have shown that this minimun tecperature insures t-:
an acceptable margin against ecre lift when the fourth pu=p is started.
2 This position is based on previcus analysis vnich has stevn that sp-ing stiffness in the fuel assemblies, spring config.=atics, flow uncert.2inty, irradiation and other accu =ulated effects are within acceptable boundaries, h
The startup temperature linit say be subject to cha:ge in the htture, 7
based upon irridiation exposure sai new fuel assembly design sad measured Jgij A_.
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reactor coolant flow conditions.
If you bare any further questior.s please do not besitate to contact me.
?.S-Very truly yours, E.$ '
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L. C. Rogers Site Operations Manager
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