ML18033B119

Proposed Tech Spec Page 1.0.2

ML18033B119
Person / Time
Site:	Browns Ferry
Issue date:	01/05/1990
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML18033B118	List: ML18033B117 ML18033B119
References
NUDOCS 9001170189
Download: ML18033B119 (2)

Text

1 0 DEFINITIONS (Cont'd)

2. When a system, subsystem, train, component, or device is determined to be inoperable solely because its onsite power source is inoperable, or solely because its offsite power source is inoperable, it may be considered operable for the purpose of satisfying the requirements of its applicable Limiting Condition for Operation, provided:

(1) its corresponding offsite or diesel power source is operable; and (2) all of its redundant system(s), subsystem(s),

train(s), component(s), and device(s) are operable, or likewise satisfy these requirements. Unless both conditions (1) and (2) are satisfied, the unit shall be placed in at least Hot Standby within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, and in at least Cold Shutdown within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. This definition is not applicable in Cold Shutdown or Refueling. This provision describes what additional conditions must be satisfied to permit operation to continue consistent with the specifications for power sources, when an offsite or onsite power source is not operable. It specifically prohibits operation when one division is inoperable because its offsite or diesel power source is inoperable and a system, subsystem, train, component, or device in another division is inoperable for another reason. This provision permits the requirements associated with individual systems, subsystems, trains, components, or devices to be consistent with the requirements of the associated electrical power source. It allows operation to be governed by the time limit of the requirements associated with the Limiting Condition for Operation for the offsite or diesel power source, not the individual requirements for each system, subsystem, train, component, or device that is determined to be inoperable solely because of the inoperability of its offsite or diesel power source.

D. PRIOR TO STARTUP Prior to withdrawing the first control rod for the purpose of making the reactor critical.

E. O~bl device shall be lilt'-or Operable y

have

. byt ~ .t . >>p t operability when it is capable of performing its specified function(s). Implicit in this definition shall be the assumption that all necessary attendant instrumentation, controls, normal and emergency electrical power sources, cooling or seal water, lubrication or other auxiliary equipment that are required for the system, subsystem, train, component, or device to perform its function(s) are also capable of performing their related support function(s).

F. O~eratin Operating means that a system or component is perporming its intended functions in its required manner.

G. Immediate Immediate means that the required action will be initiated as soon as practicable considering the safe operation of the unit and the importance of the required action.

BFN 1.0-2 Uni t 2 900ii70189 900i05 ~PS PDR ADOCK 05000260 9 PDC

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