Text

Amend 19 to License NPF-6,providing Clarification of Term Operable Re Single Failure Criterion for Safety Sys
	ML19350B405
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/03/1981
From:	Clark R; Office of Nuclear Reactor Regulation
To:	;
Shared Package
ML19350B406	List: ML19350B405; ML19350B407; ML19350B410;
References
	NPF-06-A-019 NUDOCS 8103200455
	Download: ML19350B405 (9)
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UNITED STATES 7,

NUCLEAR REGULATORY COMMISSION D

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ARKANSAS PCWER AND LIGHT CtHPANY 1~

, DOCKET NO. 50-368 ARKANSAS NUCLEAR ONE, UNIT 2 AMENDu.ENT TO FACILITY OPERATING LICENSE Acendmtnt No.19' License No. NPF-6 1

1.

The Nuclear Regulatory Com.ission (the Com.ission) has found that:

A.

The applicaticn for amendment by Arkansas Power and Light Cor.pany (the licensee) dated Au_ gust 13, 1980 complies with the standards and requirements of the Atomic Energy Act of 1954, as arended (the Act) and the Comission's rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Comission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in co pliance with the Comission's regulations; D.

The issuance of this amendment will not be inimical to the comon defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51_of the Cor.nission's re?;1ations and all applicable requirements have been satisfied.

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Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. NPF-6 is herehy amended as follows. The second paragraph.

of 2.C.(2) has not changed.

(2) Technical Specifications The Technical Specifications contained in Appendifes A and B, as revised throuSh Amendment No.19 are hereby incorporated in the license..

The licensee shall operate the facility,in accordance with the Technical Specifications.

3.

This license amend:ent is effective as of the date of its issuance.

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FCR THE NUCLEAF REGULATORY C0KUSS10N WWar o

$,qyr' Robert A. Clark, Chief Operating Reactors Branch #3 Division of Licer. sine

Attachment:

Changes to the Technical Specificaticns Date of Isseance: March 3, 1981 9

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d ATTACHENT TO LICENSE AMENDMENT dO.19 FACILITY OPERATING LICENSE NO. NPF-6 DOCKET NO. 50-368 Replace the following pages of the Appendix "A" Technical Specifications with the enclosed pages. The revised pages are identified by Amendment number and contain vertical lines indicating the area of change.

The correspondi.ng over-leaf pages are also provided to maintain document completeness.

Pages 3/40-1 3/4 0-2 B 3/4 0-1 B 3/4 0-la (added)

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3/4 LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS 3/4.0 APPLICABILITY LIMITING CONDITION FOR OPERATION 3.0.1 Limiting Conditions for Operation and ACTION requirements shall be applicable during the OPERATIONAL MODES or other conditions specified for each specification.

3.0.2 Adherence to the requirements of the Limiting Condition for Operation and/or 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, 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 within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months , action shall be initiated to place the unit in a mode in which the specification does not apply by placing it, as applicable, in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , and in at least COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months unless corrective measures are completed that permit operation under the permissible ACTION statements for the specified time interval as measured from initial discovery or until the reactor is placed in a MODE in which the specification is not applicable.

Exceptions

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to these requirements shall be stated in the individual specification.

3.0.4 Entry into an OPERATIONAL MODE or other specified ' applicability condi-tion 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 through OPERATIONAL MODES as required to comply with ACTION statements'.

3.0.5 Whena-system, subsystem,' train,componentordeviceisdeterminedto 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 within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , action shall be initiated to place the unit in a MODE in which the applicable Limiting Condition for Operation does not apply by placing it, as applicable, in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ,'in-at least HOT SHUTDOWN within-the next-6 hours, and in at least COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

This specification is not

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applicable in MODES-5 or 6. -

ARKANSAS - UNIT 2 3/4 0-1 Amendment No. 19

l SURVEILLANCE REQUIREMENTS

4. 0.1 Surveillance Requirements shall be applicable during the OPERATIONAL H0 DES or other conditions specified for individual Limiting Conditions for Operation unless otherwise stated in an individual Surveillance Requirement.

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, and b.

A total maximum combined interval time for any 3 consecutive surveillance intervals not to exceed 3.25 times the specified surveillance interval.

4.0.3 Performance of a Surveillance Requirement within the specified time I interval shall constitute compliance with OPERA 3ILITY requirements for a Limiting Condition for Operation and associated ACTION statements unless otherwise required by the specification.

Surveillance Requirements do not j have to be performed on inoperable equipment.

Entry into an OPERATIONAL MODE or other specified applicability condi-l4.0.4 tion shall not be made unless the Surveillance Requirement (s) associated with the Limiting Condition for Operation have been performed within the stated surveillance interval or as otherwise specified.

4.0.5 Surveillance Requirements for inservice inspection and testing of ASME Code Class 1, 2 and 3 components shall be applicable as follows:

a.

During the time period:

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From issuance of the Facility Operating License to the start of facility commercial operation, inservice testing of ASME Code Class 1, 2 and 3 pumps and valves shall be performed in accordance with Section XI of the ASME Boiler and Pressure-Vessel Code 1974 Edition, and Addenda through Sumar 1975, except where specific written relief has been granted by the Commission.

2.

Following start of facility commercial operation, inservice inspection of ASME Code Class 1, 2 and 3 components and in-t,ervice testing of ASt1E Code Class 1, 2 and 3 pumps and valves shall be performed in accordance with Section XI of the ASME Boiler and Pressure Vessel Code and applicable

' Addenda as required by 10 CFR 50, Section 50.55a(g),

except where specific written relief has been granted by

-the Comission pursuant to 10 CFR 50, Section 50.55a(g)(6)(i).

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3/4.0 APPLICABILITY BASES The specifications of this section provide the general requirements applicable to each of the Limiting Conditions for Operation and Surveil-lance Requirements within Section 3/4.

3.0.1 This specification defines the applicability of each specifica-tion in terms of defined OPERATIONAL NODES or other specified conditions and is provided to delineate specifically when each specification is applicable.

3.0.2 This specification defines those conditions necessary to constitute compliance with the terms of an individual Limiting Condition for Operation and associated ACTION requirement.

3.0.3 This specification delineates the ACTION to be taken for circum-stances not directly provided for in the ACTION statements and whose occurrence would violate the intent of the specification. For example Specification 3.5.1 calls for each Reactor Coolant System safety injecti:n tank to be OPERABLE and provides explicit ACTION requirements when or-safety injection tank is inoperable.

Under the terms of Specification 3.C

, if more than one safety injection tank is inoperable, the facility is regi, d to be in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , and in at least HOT SHL

,N within the I

next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months . As a further example, Specification 3.6.2.

equires two Containment Spray Systems to be OPERABLE and provides exp

it ACTION require-ments if one spray system is inoperable: Under the terms :f Specification 3.0.3, if both of the required Containment Spray Systems are inoperable, the unit is required to be in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in at least HOT SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

It is assumed that the unit is brought to the required MODE within the required times by promptly initiating and carrying out the appropriate ACTION statement 3.0.4 This specification provides that entry into an OPERATIONAL MODE or other specified applicability condition must be made with (a) the full complement of required systems, equipment or components OPERABLE and (b) all other parameters as specified in the Limiting Conditions for Operation being met without regard for allowable deviations and out of service provisions contained in the ACTION statements.

l The intent of this provision is to insure that facility operation is not initiated with either required equipment or systems inoperable or other specified limits being exceeded.

Exceptions to this provision have been provided for a limited number of specifications when startup with inoperable equipment would not affect plant safety.

These exceptions are stated in the ACTION statements of the appro-priate specifications.

ARKANSAS - UNIT 2 IL 3/4 0-1 Amendment No.19 P

APPLICABILITY BASES (Continued)

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3.0.5 This specification delineates what additional conditions must be satisfied to permit operation to continue, consistent with the ACTION statements for power sources, when a normal or emergency power source is not OPERABLE.

It specifically prohibits operation when one division is inoperaole because its normal or emergency power source is inoperable and a system, subsystem, train, component or device in another division is inoperable for another reason.

The provisions of this specification permit the ACTION statements cssociated with inaividual systems, subsystems, trains, components, or devices to be consistent with the ACTION statements of the associated electrical power It allows operation to be governed by the time limits of the ACTION source.

statement associated with the Limiting Condition for Operation for the normal or emergency power source, not the individual ACTION statements for each system, subsystem, train, component or device that is determined to be inoperable solely

, because of the inoperability of its normal or emergency power source.

For example, Specification 3.8.1.1 requires in part that two emergency diesel generators be CPERABLE.

The ACTION statement provides for a 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months out-of-service time when one emergency diesel generator is not GPERABLE.

If the definition of OPERABLE were applied without consideration of Specification 3.0.5, all systems, subsystems, trains, components and devices npplied by the inoperable emergency power source would also be inoperable. This would dictate invoking the applicable ACTION statements for each of the applicable Limiting Conditions for Operation. However, the provisions of Specification 3.0.5 permit the time limits for continued operation to be consistent with the ACTION statement for the inoperable emergency diesel generator instead, prnided the other specified conditions are satisfied.

In this case, this would mean that the corresponding normal power source must be OPERABLE, and all redundant systems, subsystems, trains, components, and devices must be OPERABLE, cc otherwise satisfy Specification 3.0.5 (i.e., be capable of performing their design function and have at least one normal or one emergency power source OPERABLE).

If they are not satisfied, action is required in accordance with this specification.

As a further example, Specification 3.8.1.1 requires in part that two physically independent circuits between the offsite transmission network and the onsite Class IE distribution system be OPERABLE. The ACTION statement provides a 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months out-of-service time when both required offsite circuits are not OPERABLE.

If the definition of OPERABLE were applied without consideration of Specification 3.0.5, all systems, subsystems, trains, components and devices supplied by the inoperable normal power sources, both of the offsite circuits, would also be inoperable. This would dictate invoking the applicable ACTION statements for each of the applicable LCOs.

However, the provisions of Specifi-cation 3.0.5 permit the time limits for continued operation to be consisterJ.

with the ACTION statement for the inoperable normal power sources instead, provided the other specified conditions are satisfied.

In this case, this would mean that for one division th; emergency power source must be OPERABLE (as must be the components supplied by the emergency power source) and all redundant ll ARKANSAS - UNIT 2 B 3/4 0-la Amendment No.19

APPLICABILITY BASES (Continued) systems, subsystems, trains, components and devices in the other division must be OPERABLE, or likewise satisfy Specification 3.0.5 (i.e., be capable of performing their design functions and have an emergency power source OPERABLE).

In other words, both emergency power sources must be OPERABLE and all redundant systems, subsystems, trains, components and devices in both divisions must also be OPERABLE.

If these conditions are not satisfied, action is required in accordance with this specification.

In M0' DES 5 or 6. Specification 3.0.5 is not applicable, and thus the individual ACTION statements for each applicable Limiting Condition for Opera-tion in these MODES must be adhered to.

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APPLICABILITY BASES.

4. 0. 'i This specification provides that surveillance activities necessary to insure the Limiting Conditions for Operation are met and will be performed during the OPERATIONAL MODES or other conditions for which the Limiting Conditions for Operation are applicable. Provisions for additional surveillance activities to be performed without regard to the applicable OPERATIONAL MODES or other conditions are provided in the individual Surveillance Requirements. Surveillance Requirements for Special Test Exceptions need only be performed when the Special Test Exception is being utilized as an exception to an individual specification.

4.0.2 The provisions of this specification provide allowable toler-antes for-performing surveillance activities beyond those specified in the nominal surveillance interval. These tolerances are necessary to provide operational flexibility because of scheduling and performance considerations. 'The phrase "at least" associated with a surveillance i

frequency does not negate this allowable tolerance value and permits the performance of more frequent surveillance activities.

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The tolerance values, taken either individually or consecutively over 3 test intervals, are sufficiently restrictive to ensure that the i

reliability associated with the surveillance activity is not signifi-

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cantly degraded beyond that obtained from the nominal specified interval.

4.0.3 The provisions of this spectf tcation set forth.the criteria for determination of compliance with the OPERABILITY requirements of the Limiting Conditicns fo.- Operation. 'Under this-criteria, equipmentr, l

systems or components are assumed to be OPERABLE if the associated surveillance activities have been satisfactorily performed within the.

specified time interval.. Nothing in this provision is to be construed as defining equipment, systems or components OPERABLE, when such items are found or knrwn to be. inoperable although still meeting the Surveil-lance Requirenents.

4.0.4 This specification ensures that the surveillance activities associated with a-Limiting Condition for Operation have been performed I.

within the specified time interval prior to entry into an OPERATIONAL MODE or-other appitcable condition.. The intent of this provision is to ensure that surveillance activities have been satisfactorily demonstrated on a current bcsis as required to meet the OPERABILITY requirements of the Limiting Condition for Operation.

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ML19350B405

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