ML19319B240
| ML19319B240 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 03/22/1972 |
| From: | Knuth D US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Deyoung R US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 8001130043 | |
| Download: ML19319B240 (1) | |
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MAR 2 a 1972 4
R. C. DeYoung, Jr., Assistant Director for Pressurized Uator Eccetors, DEL 0C0't2 UUCLEAR STATICU, inITS 2 RD 3, DOCKET IIOS F A'.tD 50-287 The enclosura to cy s co dated Itarch 16, 1972, listed recoc=caded changes to the cconco Technical Specifications. Itco 6 of that enclosure recc::cended that a Perfortanco Dicehargo Test be required for the batteries of soma do power cystc=s.
not included but it should have been.The 1257 DC &.ritching Station Power System
'One function of the Suitching Station Pouer system is to provida ecatrol power for the circuit breakers in the 230 kV cuitchyard.
switchyard is part of the distributica nyateu for tha casito pcr.rar systema (Kooveshydrounits).
Thorofore, the batterina of the 125V DC Switching Statica Power syste:: abould have the seca test require =nts as tha Xcovoo botteries.
A rotated'etw.ngE to the Technical specifications _that is also recoco concerns testing of the control circuitry for the 230 kV switchyard.
Assuming that the offsits pacer system is not funettehg and that a 's failure disables the 13.8 kV underground feedce circuit fro:a the Iccues hydro units, the 230 kV cuitchyard nact ba diaconnected from the offsite transnission~ network and any faults in the cwitchyard s:ast be isolated,
before the accend casita power distribution circuit cca bc = ado availab to supply power to the engineered safety feature loads.
nhould be requented to propoca technical cpecifications for eccting of th The applicant:
davices and circuitry used to actcct fcults, icolato the 230 kV switch and ccr:ncet a hydro unit to the cultchyard.
formad quarterly.
Such testing chould be per*
Oriisnd siped by Donald F. Knuth
'E88-43.
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Donald F. Enuth h'
Assistant Director for Systecas.
- y-Divisica of Reactor Standards
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