ML20064J403

Proposed Tech Specs 3/4.0 Re Applicability

ML20064J403
Person / Time
Site:	South Texas
Issue date:	03/14/1994
From:	HOUSTON LIGHTING & POWER CO.
To:
Shared Package
ML20064J397	List: ML20064J403 ST-HL-AE-4708, Application for Amends to Licenses NPF-76 & NPF-80,revising TS Section 3/4.0 Re Applicability
References
NUDOCS 9403210192
Download: ML20064J403 (5)

Text

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4 ATTACHMENT 3 ,

PROPOSED TECHNICAL SPECIFICATION CHANGE t

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' 9403210192 940314 PDR ADOCK 05000498 P PDR '~

TS? 94\94 n44.00) v+ .-

4 3/4.0 APPLICABILITY LIMITING CONDITI0tl FOR OPERATION (Continued) 4 3.0.5 Limiting Conditions for Operation including the associated ACTION requirements shall apply to each unit individually unless otherwise indicated.

as follows:

a. Whenever the Limiting Conditions for Operation refers to systects or-components which are shared by both units, the ACTION requirements will apply to both units simultaneously,

b. Whenever the Limiting Conditions for Operation applies to only one unit, this will be identified in the APPLICABILITY section of the specification; and

c. Whenever certain portions of a specification contain operating parameters, Setpoints, etc. , which are different for each unit, this will be identified in parentheses, footnotes or body of the requirement.

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SOUTH TEXA5 - UN115 1 & 2 3/4 0-2 Unit 1 - Amendment No. 4

1TTACHMENT A 3.0.6 Equipment removed from service or declared inoperable to comply with ACTIONS may be returned to service under administrative control to perform testing required to demonstrate its OPERABILITY '

or the OPERABILITY of other equipment. This is an exception to LCO 3.0.2 for the system returned to service under administrative control to perform the testing required to demonstrate OPERABILITY.

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3.4.0 APPLICABILITY BASES (Continued)

When a shutdown is required to comply with ACTION requirements, the provisions of Specification 3.0.4 do not apply because they would delay placing the facility in a lower MODE of operation.

Specification 3.0.5 delineates the applicability of each specification to Unit 1 and Unit 2 operati,on. j u ggg 7 A 7T/9c u Age T d Specifications 4.0.1 through 4.0.6 establish the general requirements applicable to Surveillance Requirements. These requirements are based on the Surveillance Requirements stated in the Code of Federal Regulations, 10 CFR 50.36(c)(3):

" Surveillance requirements are requirements relating to test. calibra-tion, or inspection to ensure that the necessary quality of systern and components is maintained, that facility operation will be within safety limits, and that the limiting conditions of operation will be met."

Specification 4.0.1 establishes the requirement that surveillances must be performed during the OPERATIONAL MODES or other conditions for which the requirements of the Limiting Conditions for Operation apply unless othervise ,

stated in an individual Surveillance Requirement. The purpose of this speci-fication is to ensure that surveillances are performed to verify the opera-tional status of systems and components and that parameters are within speci-fied limits to ensure safe operation of the facility when the plant is in a MODE or other specified condition for which the associated Limiting Conditicns for Operation are applicable. Surveillance Requirements do not have to be performed when the facility is in an OPERATIONAL H0DE for which the requirenents of the associated Limiting Condition for Operation do not apply unless otherwise specified. The Surveillance Requirements associated with a Special Test Exception are ,only applicable when the Special Test Exception is used as an allowabl9 exception to the requirements of a specification.

Specification 4.0.2 establishes the limit for which the specified time interval for Surveillance Requirements may be extended. It permits an allowable extension of the normal surveillance interval to facilitate surveillance scheduling and ' consideration of plant operating conditions that may not be suitable for conducting the surveillance; e.g. , transient conditions or other ongoing surveillance or maintenance activities. It alsc provides flexibility to accommodate the length of a fuel cycle for surveillances performed at each refueling outage and are specified with a 18 month surveillance interval. It is not intended that this provision be used repeatedly as a convenience to extend surveillance intervals beyond that specified for surveillances not performed during refueling outages. The limitation of Specification 4.0.2 is based on engineering judgment and the recognition that the most probable result of any particular surveillance being performed is verification of conformance with the Surveillance Requirements.

This provision is sufficient to ensure that reliability ensured through surveillance activities is not significantly degraded beyond that obtained from the specified surveillance interval.

Specification 4.0.3 establishes the failure to per arm a Surveillance Requirement within the allowed surveillance inter al, defined by the provis'cos of Specification 4.0.2, as a condition that cons .itutes a failcre to meet tN SOUTH TEXA5 - UNITS 1 & 2 8 3/4 0-4 UNIT 2 - APdNDMENT tG. 1, 21 UNIT 2 - AFINDMENT to. * ~.

s ATTACEMENT B Enecification 3 mHmE establishes the allowance for restoring equipment to service under administrative controls when it has been j removed f rom service or declared inoperable to comply with ACTIONS.

The purpose of this Specification is to provide an exception to LCO , 3.0.2 (e.g., to not comply with the applicable Required Action (s))

to allow the performance of post maintenance and surveillance testing to demonstrate:

a. The OPERABILITY of the equipment being returned to service; or

b. The OPERABILITY of other equipment.

The administrative controls ensure the time the equipment is returned to service in conflict with the requirements of the ACTIONS is limited to the time absolutely necessary to perform the allowed testing. This Specification does not provide time to l

perform any other preventive or corrective maintenance.

Ar. example of demonstrating the OPERABILITY of the equipment being returned to service is reopening a containment isolation valve that has been closed to comply with Required Actions and must be reopened to perform the required testing.

An example of demonstrating the OPERABILITY of other equipment is taking an inoperable channel or trip system out of the tripped condition to prevent the trip function from occurring during the performance of a surveillance requirement on another channel in the other trip system. A similar example of demonstrating the OPERABILITY of other equipment is taking an inoperable channel or trip s9 stem out of the tripped condition to permit the logic to function and indicate the appropriate response during the performance of a surveillance requirement on another channel in the same trip system.

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