ML19317E501
| ML19317E501 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 08/01/1975 |
| From: | Parker W DUKE POWER CO. |
| To: | Anthony Giambusso Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19317E502 | List: |
| References | |
| NUDOCS 7912180740 | |
| Download: ML19317E501 (2) | |
Text
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NRC vaSTRIBUTION FOR PART 50 DOCKE: MATERI AL (TEMPORARY FORM)
CONTROL NO: 231 FILE:
FROM: Duke Power Company DATE OF DOC D ATE R EC'D LTR TWX RDT OTHER Charlotte, NC 1
W O Parker 3r 8-1-75 8-5-75 XX i
TO:
ORIG CC OTHER SENT NRC PDR XX Mr Giambusse one signed SENT LOCAL PDR XX CLASS UNCLASS PROPINFO INPUT NO CYS REC'D DOCKET NO:
XXX 1
70/287 DESCRIPTION:
ENCLOSURES:
Ltr re theft 7-7-75 submittal...trans the information concerning re-ev;1uation of ECCS following:
- ooling performance for partial loop operation...
(40 cys enc 1 ree'd)
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DUKE POWER COMPANY l
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August 1, 1975
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r 3-4:e3 Mr. Angelo Giambusso, Director Division of Reactor Licensing U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Re:
Oconee Nuclear Station Docket Nos. 50-269, -270, -287
~'b.
Dear Mr. Giambusso:
Supplementing our submittal of July 9, 1975, Duke Power Company submits herewith information concerning re-evaluation of ECCS cooling performance for partial loop operation. This re-evaluation addresses two cases of three reactor coolant pump operation at the LOCA limited maximum allowable peak linear heat rate for four-pump operation, as established in BAW-10103, "ECCS Analysis of B&W's 177-FA Lowered-Loop NSS."
The worst case break assumed is ldentical to that reported in BAW-10103.
The results of these analyses show that the peak cladding temperatures for partial loop operation are significantly below the four-pump, full power operation results reported in BAW-10103. These results, therefore, substantiate the proposed Technical Specifications for three-and two-pump operation submitted on July 9, 1975.
Forty copies of this letter and attachment are enclosed.
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Ver7 truly yours,
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-' William O. Parker, Jr. y
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