ML20237H884

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Proposed Tech Specs Providing Consistency & Clarity to Definition of Term Operability in Definitions Sections
ML20237H884
Person / Time
Site: Hatch  Southern Nuclear icon.png
Issue date: 08/19/1987
From:
GEORGIA POWER CO.
To:
Shared Package
ML20237H869 List:
References
TAC-66099, NUDOCS 8708250184
Download: ML20237H884 (2)


Text

K.

Instrument Check - An instrument check is the qualitative determination of acceptable operability by observation of instrument behavior during operation. This determination shall include, where possible, comparison of the instrument with other independent instruments measuring the same variable.

L.

Instrument Functional Test - An instrument functional test means the injection of a simulated signal into the instrument primary sensor to verify the proper instrument channel response, alarm and/or initiating action.

M.

Limiting _ Conditions for Operation (LCO) - The limiting conditions for operation specify the acceptable levels of system performance necessary to assure safe startup and operation of the Unit.

When these conditions are met, the Unit can be operated safely and abnormal situations can be safely controlled.

N.

Limitina Safety System Settina (LSSS) - The limiting safety system settings are settings on instrumentation which initiate the automatic protective action at a level such that a Safety Limit will not be exceeded. The region between the Safety Limit and these settings represents margin with normal operation lying on the conservative side of these settings. The margin has been established so that with proper operation of the instrumentation the Safety Limits will never be exceeded.

O.

Logic System Functional Test - A logic system functional test means a test of all relays and contacts of a logic circuit from sensor to activated device to insure that components are operable per design intent. Where practicable, action will go to completion; e.g., pumps will be started and valves opened.

P.

Deleted Q.

0Jerable-Operability - A system, subsystem, train, component, or device shall be operable or have operability when it is capable of performing its specified function (s). Implicit in this definition shall be the assumption that all necessary attendent instrumentation, controls, normal and emergency power sources, cooling or seal water, lubrication or other auxiliary equipment that are requireo for the system, subsystem, train, component, or device to perform its function (s) are also capable of performing their related support function (s).

When a system, subsystem, train, component, or device having Technical Specification operability requirements is determined to be inoperable solely because its emergency power source is inoperable, or solely because its normal power source is inoperable, it may be considered operable for the purpose of satisfying the requirements of its applicable Limiting Condition for Operation, provided: (a) its corresponding normal or emergency power source is operable and (b) all its redundant system (s), subsystem (s), train (s), component (s), and device (s) required to perfcrm its intended function are operable, or l

likewise satisfy the requirements of this specification. Unless both

{

conditions (a) and (b) are satisfied, enter the applicable Limiting Condition for Operation as specified by the Technical Specifications or j

1 within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> action shall be initiated to place the unit in at least Hot Shutdown within the next 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 />.

R.

(Deleted) 8708250184 870819 PDR ADOCK 05000321 P

PDR HATCH - UNIT 1 1.0-3 Proposed TS/0122q/154 l

l

]

l 3/4, LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE RE0VIREMENTS M4.0 APPLICABILITY j

a LIMITING CONDITION FOR OPERATION 3.0.1 Limiting Conditions for Operation and ACTION requirements shall be applicable during the OPERATIONAL CONDITIONS or other states specified for each specification.

3.0.2 Adherence to the requirements of the Limiting Condition for Operation and associated ACTION within the specified time interval shall constitute compliance with the specification. In the event the Limiting Condition for Operation is restored prior to expiration of the specified time interval,

.I completion of the ACTION statement is not required.

3.0.3 In the event a Limiting Condition for Operation and/or associated ACTION requirements cannot be satisfied because of circumstances in excess of those addressed in the specification, the facility shall be placed in at least HOT SHUTDOWN within 6. hours and in COLD SHUTDOWN

  • in the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> unless corrective measures are completed that pern.,i operation under the permissible ACTION statements for the specified tirae interval as measured f rom initial discovery or until the reactor is placed in an OPERATIONAL CONDITION in which the specification is not applicablo. Exceptions to these requirements'shall be stated in the individual specifications.

3.0.4 Entry into an OPERATIONAL CONDITION or other specified applicability state shall not be made unless the conditions of the Limiting Condition for Operation are met without reliance on provisions contained in the ACTION statements unless otherwise excepted. This provision shall not prevent passage thru OPERATIONAL CONDITIONS required to comply with ACTION requi rements'.

3.0.5 When a system, subsystem, train, component, or device having Technical Specification operability requirements is determined to be inoperable solely because its emergency power source is inoperable, or solely because its normal 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 normal or emergency 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 the requirements of this specification. Unless both conditions (1) and (2) are satisfied, enter the applicable Limiting Condition for Operation as specified by the Technical Specifications or within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, initiate actions to place the unit in at least Hot Shutdown within the next 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 />.

SURVEILLANCE REQUIREMENTS 4.0.1 Surveillance Requirements shall be applicable during the OPERATIONAL CONDITIONS or other states specified for individual Limiting Conditions for Operation unless otherwise stated in the individual Surveillance Requirements.

4.0.2 Each Surveillance Requirement shall be performed within the specified time interval with:

a.

A maximum allowable extension not to exceed 25% of the surveillance

interval, HATCH - UNIT 2 3/40-1 Proposed TS/0123q/154

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