ML16245A468
| ML16245A468 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 11/13/1979 |
| From: | Lainas G Office of Nuclear Reactor Regulation |
| To: | Reid R Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML16245A469 | List: |
| References | |
| NUDOCS 7912180317 | |
| Download: ML16245A468 (2) | |
Text
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9 NOV 13 199 entral Files PSB RDG MEMORANDUM FOR:
R. Reid, Chief Operating Reactors Branch #4 Division of Operating Reactors FROM:
G. Lainas, Chief Plant Systems Branch, Division of Operating Reactors.
SUBJECT:
SAFETY EVALUATION OF PROPOSED CHANGES TO TECHNICAL SPECIFICATIONS OF OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 - AUXILIARY ELECTRICAL SYSTEMS AND EMERGENCY POWER SURVEILLANCE AND PERIODIC TESTING (TACS 7660, 7354, 10035, 10036, 10037, 10505, 10508, 10513, AND 10514)
Plant Name: Oconee Nuclear Station, Units 1, 2, and 3 Docket Nos.: 50-269, 50-270, and 50-287 Responsible Branch: Operating Reactors Branch #4 Project Manager: M. Fairtile Reviewing Branch: Plant Systems Branch, Review Status:
Complete The Duke Power Company, by letters dated January 12, 1978, February 1.
1978, and August 22, 1979, submitted a request for amendments to the Technical Specifications related to the auxiliary electrical systems and emergency power system periodic testing for Oconee, Units 1, 2, and 3. The proposed changes to the Technical Specifications are to:
- 1. Provide the definition of the standby power system path;
- 2. Provide flexibility in the limiting conditions for operation and surveillance requirements for the 125 VDC systems;
- 3. Change the inoperable conditions in terms of the time period from 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> for one complete single string of the 125 VDC system;
- 4. Reword the descriptions of the DC system capacity; and
- 5.
Revise the perfodic testing and surveillance of the emergency power sources.
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-2 NOV 13 1979 We have reviewed these changes and find them acceptable. Our evaluation of the proposed changes to the Technical Specifications is enclosed.
'G.
Lainas, Chief Plant Systems Branch Di-ision of Operating Reactors Enclosure, As stated
Contact:
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D. Eisenhut B. Grimes W. Gammill M. Fairtile G. Lainas D. Tondi R. Scholl S. Rhow D PSBD B
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