ML20078B626
| ML20078B626 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 01/19/1995 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20078B623 | List: |
| References | |
| NUDOCS 9501250455 | |
| Download: ML20078B626 (8) | |
Text
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3/4 LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REOUIREMEN 3/4.0 APPLICABILITY -
tlMITING CONDITION FOR OPERATION 3.0.1 succeeding specifications is required during the OPERATIONA Conditions for Operation, the associated ACTION requiremen 3.0.2 Noncompliance with a specification shall exist when the requirements of the met not Limiting withinCondition for Operation the specified and/or associated ACTION requirements are time intervals. If the Limiting Condition for cf.,mpletion of the ACTION requirements is not required. Operation is r 3.0.3 When a Limiting Condition for Operation is not met, 'except as provided in the associated ACTION requirements, within I hour, action shall be initiated placing it, as applicable, in:to place the unit in a MODE in which the specification 1.
- 2. At least HOT STAND 8Y within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, 3 ., At least NOT SHUTOOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, and At least COLD SHUTDOWN within the subsequent 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
Where corrective measures are completed that permit operation under the ACTION requirements, the ACTION may be taken in accordance with the specified time limits as measured Operation. Exce from the time of failure to meet the Limiting Condition for specifications. ptions to these requirements are stated in the individual This specification is not applicable in M0DE 5 or 6.
3.0.4 made when the conditions for the Limiting Conditions for Ope and interval.the ACTION requires a shutdown if they are not met within a specified accordance with ACTION requirements when conformance to th operation of the facility for an unlimited period of time.
exception shall be subject to review and approval as described in plantApplying this adJinistrative exception controls to these unless the individual specification contains an requirements.
This provision shall not prevent passage through or to OPERATIONAL MODES as required to comply with ACTION statements.
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P PDR WATERFORD UNIT 3 3/4 0-1 AMENDMENT NO. 99
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When a shutdown is required to comply with ACTION requirements, the '
! prov'isions of Specification 3.0.4 do not apply because they would delay !
j placing the facility in a lower MODE of operation. _ i Snecification 4.0.1 throuah 4.0.5 establish the general requirements l 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):
l l ' Surveillance requirements are requirements relating to test, i
calibration, or inspection to ensure that the necessary quality of j systems and components is maintained, the facility operation will be 4
within safety limits, and that the limiting condition of operation j will be met."
! Snecification 4.0.1 establishes the requirement that surveillances must i be performed during the OPERATIONAL MODES or other conditions for which the i
requirements of the Limiting Conditions for Operation apply unless otherwise
! stated in an individual Surveillance Requirement. The purpose of this
! specification is to ensure that surveillances are perfornctt to verify the
! operational status of systems and components and that paramatics are within l
i specified limits to ensure safe operation of the facility when the plant is in a MODE or other specified condition for which the associated Limiting l Conditions for Operation are applicable. Surveillance Requirements do not i
have to be performed when the facility is in an OPERATIONAL MODE for which the
} requirements of the associated Limiting Condition for Operation do not apply i unless otherwise specified. The Surve'11ance Requirements associated with a
) Special Test Exception are only applicable when the Special Test Exception is l
used as an allowable exception to the requirements of a specification.
j Soecification 4.0.2 establishes the limit for which the specified time
! interval for Surveillance Requirements may be extended. It permits an ,
i allowable extension of the normal surveillance interval to facilitate l i
surveillance scheduling and consideration of plant o may not be suitable for conducting the surveillance;perating e.g., transientconditions that
! conditions or other ongoing surveillance or maintenance activities. It also i provides flexibility to accosmodate the length of a fuel cycle for 4
surveillances that are performed at each refueling outage and are specified with an 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 that are 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 l
particular surveillance being performed is the verification of conformance alth the Surveillance Requirements. This provision is sufficient to ensure
- that the reliability ensured through surveillance activities is not significantly degraded beyond that obtained from the specified surveillance
- interval. .
1 WATERFORD - UNIT 3 8 3/4 0-4 AMEN et.___2 0 MENT N0, 63r 2..;
99
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l, 3/4.0 APPLICABILITY BASES' l .,
I l Snecifications 3.0.1 throuah 3.0.4 establish n.he general requirements
! applicable to Limiting Conditions for Operation, fhese requirements are based , ,
j on the requirements for Limiting Conditions for Operation stated in the Code ;
j of Federal Regulations,10 CFR 50.36(c)(2):
i i " Limiting conditions for operation are the lowest functional l capability of performance levels of equipment required for safe )
{ operation of the facility. When a limiting condition for operation !
i of a nuclear reactor is not met, the licensee shall shut down the
] reactor or follow any remedial action permitted by the technical j specification until the condition can be met."
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Snecification 3.0.1 establishes the Applicability statement within each
{ individual specification as the requirement for when (i.e., in which j OPERATIONAL MODES or other specified conditions) conformance to the Limiting Conditions for Operation is required for safe operation of the facility. The ACTION requirements establish those remedial asasures that must be taken within specified time limits when the requirements of a Limiting Condition for Operation are not met.
! There are two basic types of ACTION requirements. The first specifies l the remedial measures that terait continued operation of the facility which is not further restricted by tie time limits of the ACTION requirements. In this !
! case, conformance to the ACTION requirements provides an acceptable level of I i safety for unlimited continued operation as long as the ACTION requirements i continue to be met. The second type of ACTION requirement specifies a time j limit in which conformance to the conditions of the Limiting Condition for 4
Operation must be met. This time limit is the allowable outage time to restore an inoperable system or component to OPERA 8LE status or for restoring parameters within specified limits. If these actions are not completed within
, the allowable outage time limits, a shutdown is required to place the facility
- in a M0DE or condition in which the specification no longer applies. It is
! not intended that the shutdown ACTION requirements be used as an operational
! convenience which permits (routine) voluntary removal of a systes(s) or i component (s) from service in lieu of other alternatives that would not result j in redundant systems or components being inoperable.
i The specified time limits of the ACTION requirements are applicable from the point in time it is identified that a Limiting Condition for Operation is
] not met. The timer limits of the ACTION requirements are also applicable when i a system or component is removed from service for surveillance testing or i investigation of operational problems. Individual specifications may include i a specified time limit for the completion of a Surveillance Requirement when I
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t WATERFORD - UNIT 3 8 3/4 0-1 AMENDMENT NO. 99 i
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NPF-38-164
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3/4 LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS 3/4.0 APPLICABILITY LIMITING CONDITION FOR OPERATION (C Q ntinued) 3.0.5 Equipment removed from serv 1ce or declared inoperable to comply with ACTIONS may be returned to service under administrative control solely to perform testing reautred 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 recuired to demonstrate OPERABILITY, I
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l lWATEFFORD-UNIT 3 3/4 0-la
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3/4.0 APPLICABILI1Y BASES Specifications 3.0.1 through 3.0.5 establish the general requirements applicable l to Limiting Conditions for Operation. These requirements are based on the requirements for Limiting Conditions for Operation stated in the Code of Federal Regulations.10 CFR 50.36(c)(2):
" Limiting conditions for operation are the lowest functional capability of -
performance levels of equipment required for safe operation of the facility. When j a limiting condition for operation of a nuclear reactor is not met, the licensee shall shut down the reactor or follow any remedial action permitted by the technical specification until the condition can be met."
Specification 3.0.1 establishes the Applicability statement within each individual specification as the requirement for when (i.e., in which C#ERATIONAL MODES or other i specified conditions) conformance to the limiting Conditions for Operation is required
! for safe operation of the facility. The ACTION requirements establish those remedial j measures that must be taken within specified time limits when the requirements of a Limiting Condition for Operation are not met.
i There are two basic types of ACTION requirements. The first specifies the remedial ~
measures that permit continued operation of the facility which is not further restricted l by the time limits of the ACTION requirements. In this case, conformance to the ACTION requirements provides an acceptable level of safety for unlimited continued operation as long as the ACTION requirements continue to be met. The second type of ACTION requirement specifies a time limit in which conformance to the conditions of the Limiting Condition for Operation must be met. This time limit is the allowable outage time to restore an inoperable system or component to OPERA 3LE status or for restoring parameters within specified limits. If these actions are not completed within the allowable outage time limits, a shutdown is required to place the facility in a MODE or condition in which the specification no longer applies. It is not intended that the shutdown ACTION requirements be used as an operational convenience which permits (routine) voluntary removal of a system (s) or component (s) from service in lieu of other alternatives that would not result in redur. dant systems or components being inoperable.
The specified time limits of the ACTION requirements are applicable from the point in time it is identified that a Limiting Condition for Operation is not met. The time i limits of the ACTION requirements are also applicable when a system or component is removed from service for surveillance testing or investigation of operational problems.
Individual specifications may include a specified time limit for the completion of a Surveillance Requirement when WATERFORD UNIT 3 B 3/4 0 1 AMENDMEKf N0.- 99 t +F
. j BASES i
i Whea a shutdown is required to comply w'th ACTION requirements, the provisions of Specification 3.0.4 do not apply because they would delay placing the facility in a 1 lower MODE of operation.
INSERT l Specifications 4.0.1 through 4.0.5 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 calibration, or inspection to ensure that the necessary quality of systems and components is maintained, the facility op; ration will be within safety limits, and that the limiting conditions of oper tion will be met." f 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 otherwise stated in an individual Surveillance Requirement. The purpose of this specification is to ensure that surveillances are performed to verify the operational status of systems and components and that parameters are within specified limits to ensure safe operation of the facility when the plant is in a MODE or other specified condition for which the associated Limiting Conditions for Operation are applicable. Surveillance -
Requirements do not have to be performed when the facility is in an OPERATIONAL MODE ;
for which the requirements 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 allowable 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 also provides flexibility to accommodate the length of a fuel cycle for surveillances that are performed at each refueling outage and are specified with an 18 month surveillance interval. It is not intended that this provision be used repeatedly as convenience to extend surveillance intervals beyond that specified for surveillances that are 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 the verification of conformance with the Surveillance Requirements. This provision is sufficient to ensure that the reliability ensured through surveillance activities is not significantly degraded beyond that obtained from the specified surveillance interval .
WATERFORD - UNIT 3 8 3/4 0-4 AMENDMENT NO. 99
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INSERT Swcification 3.0.5 establishes the allowance for restoring equipment to service ander administrative controls when it has been removed from service or declared inoperable to comply with ACTIONS. The sole purpose of this Specification is to provide an exception to Specification 3.0.2 (e.g. to not comply with the applicable Required Action (s)) to allow the performance of Surveillance Requirements j to demonstrate:
- a. The OPERABILITY of the equipment being returned to service; or
- b. The OPERABILITY of other equipment.
l The administrative controls ensure the time the equipment is returned to l service in conflict with the requirements of the ACTIONS is limited to the time absolutely necessary to perform the allowed Surveillance Requirements. This Specification does not orovide time to perform any other preventive or corrective maintenance.
An 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 Surveillance Requirements.
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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 j another channel in the other trip system. A similar example of demonstrating the l OPERABILITY of other equipment is taking an inoperable channel or trip system 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 I the same trip system. j i
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