ML19323E002

Proposed Tech Spec Change 35 Re Limiting Conditions for Operation & Surveillance Requirements

ML19323E002
Person / Time
Site:	North Anna
Issue date:	05/16/1980
From:	VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML19323D999	List: ML19323D998 ML19323E002 ML19323E006
References
NUDOCS 8005220628
Download: ML19323E002 (6)

Text

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O ATTACllMENT 1 PROPOSED TECHNICAL SPECIFICATION CHANGE NO. 35 NORTH ANNA POWER STATION UNIT 1 l

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11 2: 77 3/4 LIMITING CONDITIONS FOR OPERATION AND SUo,VEILLANCE REQUIRE. VENTS 3/4.0 APPLICASILITY LIMITING CONDITION FOR OPERATION 3.0.1 Limiting Conditions for Operation and ACTICN requiremencs sh'all be applicable during the OPERATIONAL f:00E5 or other conditi' a ns specified for each specification.

3.0.2 Adherence to' the requirements of the Limiting Condition for Operation end/or asscciated ACTION within the specified time interval shall constitute ccmpliance with the specification. In the event the Limiting Condition for Operation is restored price to expiraticn of the specified time interval, ccmpletien of the ACTION stacemenc is not required.

3.0.3 In the event a Limiting Ccndicica for Operation and/cr asscciated ACTION requirements cannot be satisfied because cf circumscances in excess of those addressed in the specificaticn, the unit shall be placed in at least HOT STANGSY within 1 hcur and in COLD SHUTDC'JN within the folicwing 30 hcurs unless corrective measures are completad that permit operation under the permissible ACTIGM scatenents for the specified time interval as measured from initiai discovery. Excepticas to these requirements shall be statad in the individual specificatior.s.

3.0.4 Entry into an OPERATIONAL MODE cr other specified applicability condition shall not be made unless the conditions of the Limiting Condicion for Operation are met without reliance en previsions contained in the ACTION statements unless otherwise excepced. This pr. vision shall not prevent passage through OPERATIbMai MODES as required ;t cc= ply with ACTION statements.

ADD 3.0.5 (Attached)

SURVEILLANCE REQUIREMENTS 4.0.1 Surveillance Requirements shall be applicable during the OPERA-TIONAL MODES or other conditions specified for individual Limiting Conditions for Operation unless otherwise stated in an individual Sur-veillance Requirement.

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

a. A maximum allowable extensien not to exceed 25% of the sur-veillance interval, and NORTH ANNA-UNIT 1 3/4 0-1

11 :: 77 3/4 LIMITI?!G CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS 3/4.0 APPLICABILITY LIMITING CONDITION FOR OPERATION 3.0.1 Limiting Conditions for Operation and ACTICM requirements shall be applicable during the OPERATIONAL MODES or other conditi' o ns specified for each specification.

3.0.2 Adherence to' the requirements of the Limiting Condition for Operation and/or asscciated ACTION within the specified time. interval shall constitute ccmpliance with the specification. In the event the Limiting Condition for Operation is restored prior to expiratica of the specified time interval, ccmpletion of the ACTION sta:cment is not required.

3.0.3 In the event a Limiting Ccnditien for Operatica and/cr asscciated ACTION requirements cannot be satisfied because cf circumstances in excess of those addressed in the specification, the unit shall be placed in at least HOT STANOSY within I hcur and in COLD SHUTCOWN within the folicwing 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> unless corrective measures are completad that permit operation under the permissible ACTICM statements 'for the specified time interval as measured from initial discovery. Exceptions to these requirements shall be stated in the individual specifications.

3.0.4 Entry into an OPERATIONAL MODE 1r other specified applicability condition shall not be made unless the ecnditions of the Limiting Condition for Operation are met without reliance en crevisions contained in the ACTION stataa.ents unless otherwise excepted. This provision shall not prevent passage through OPERATIONAL MODES as re uired to comply with

. ACTI0tl statements.

ADD 3.0.5 (Attached)

SURVEILLANCE REQUIREMENTS 4.0.1 Surveillance Requirements shall be applicable during the OPERA-TIONAL MODES or other conditions specified for individual Limiting Conditions for Operation unless otherwise stated in an individual Sur-veillance Requirement.

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

a. A maximum allowable extensien not to exceed 2S" of the sur-

! veillance interval, and NORT'r INNA-UNIT 1 3/4 0-1

1 11 20 77

'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 ACTICN requiremencs shall be applicable during the OPERATIONAL MODES or other conditi~ans specified for each specification.

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3.0.2 Adherence to' the requirements of the Limiting Condition for Operation and/or asscciated ACTION within the specified time interval shall constitute ccmpliance with the specification. In the event the Limiting Condition for Operation is restered prior to expiratien of the specified time interval, ccmpletion of the ACTION s-~~n: is nct required.

3.0.3 In the event a Limiting Condicion for Operatica and/or associated ACTION requirements cannot be satisfied because cf circumstances in excess of those addressed in the specificaticn, the unit shall be placed in at least HOT STANDBY within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and in CCLO SHUT 00WN within the folicwing 30 hcurs unless corrective measures a.- ccmpleted that permit operation under the permissible ACTION statements not the specified time interval as measured from initial discovery. Exceptions to these requirements shall be stated in the individual specificatier:s.

3.0.4 Entry into an OPERATIONAL MODE cr other s;ccified acplicability condition shall not be made unless the conditicas of the Limiting Condition for Operation are met withcut reliance en provisions centained in the ACTION statcc.ents unless otherwise excepced. This provision shall not prevent passage through OPERATIONAL MODES as required to cc= ply with

. ACTION statements.

ADD 3.0.5 (Attached)

SURVEILLANCE REOUIREMENTS 4.0.1 Surveillance Requirements shall be applicable during the OPERA-TIONAL MODES or othcr conditions specified for individual Limiting Conditions for Operation unless otherwise statad in an individual Sur-veillance Requirement.

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

a. A maximum allowable extension not to exceed 25% of the sur-veillance interval, and NORTH ANNA-UNIT 1 3/4 0-1 l

11 2 77 ,

3/4 LIMITING CONDITIOf!S FOR OPERATION AND SURVEILLANCE REQUIREMENTS 3/4.0 APPLICABILITY LIMITING CCNDITION FOR OPERATION 3.0.1 Limiting Conditions for Operation and ACTICN requirements shall be applicable during the OPERATIONAL MODES or other conditi'ons specified for each specification.

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3.0.2 Adherence td the requirements of the Limiting Condition for Operation and/or asscciated ACTIOM vdthin the specified time interval shall constitute ccmpliance with the specificatic:s. In the event the Limiting Condition for Operation is rest: red price to 2xpiraticn of the specified time interval, c =pletion of the ACTION statemen; is not required.

3.0.3 In the event a Limiting Condition for Operation and/cr asscciated ACTION require ents cannot be satisfied because cf circumstances in excess of those addressed in the specificaticn, the unit shall be placed in at least HOT STANCBY within I hour and in COLD SHUTOC'WN within the folicwing 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> unless corrective measures are c:=pleted that permit operation under the permissible ACTION s:stenents for the specified time interval as measured from initial discovery. Exceptiens to these requirements shall be stated in the individual specifications.

3.0.4 Entry into an OPERATIONAL MODE or other specified applicability condition shall not be made unless the ccnditions of the Limiting Condition for Operation are met withcut reliance en previsions contained in the ACTION statements unless otherwise excepted. This provision shall not prevent passage through OPERATIONAL MODES as required to ccmply with ACTION statements.

ADD 3.0.5 (Attached)

SURVEILLANCE REQUIREMENTS 4.0.1 Surveillance Requirements shall be applicable during the OPERA-TIONAL MODES or other conditions specified for individual Limiting Conditions for Operation unless otherwise stated in an individual Sur-

veillance 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 sur-veillance interval, and ,

l NORTH AN..L .

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3.0.5 When a system, subsystem, train, component or device is determined to be inoperable soley 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 satisi~y ing the requirements of its applicable Limiting Conditior, for Operation, provided: (1) its corresponding nonnal o' emergency power source is OPERABLE; and (2) all of its reduadant system (s), subsystem (s), train (s), component (s) and dev'ce(s) are OPERABLE, or likewise satisfy the require-ments c f this specification. Unless both conditions (1) and (2) are satisfied, the unit shall be placed in at least HOT STANDdY within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, 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 />. This specification is not applicable in MODES 5 or 6.

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13/d.0 APPLICASILITY BASES The :pacifications of this section prcvide the general recuirements a pplicable *.c each of the Limiting Conditions for Operation and Surveil-lance Requi"ements within Section 3/4.

3.0.1 This specification defines the applicability of each spec-ification in terms of defined OPERATIONAL MCCES cr other specified conditions and is provided to delineata specifically when each spec-ification is applicable. ~

3.0.2 This specification defines those conditions necessary to constitute ccmpliance with the terms of an individual Limiting Ccndition for Operation and asscciated ACTION requirement.

3.0.3 This specification delineates the ACTION to be taken for circumstances not directly provided for in the ACTION statements and whose occurrence wculd violate the intent of the specification. Fce example, Specificatien 3.5.1 calls for each Reactor Ccolant System accumulatcr to be OPERABLE and provides explicit ACTION requirements when one accumulater is incperable. Under the terms of Specification 3.0.3, if more than one accumulator is incperable, the facility is required to be in at least HOT STANDEY within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and in COLE SHUT- I DOWN within the following 30 hcurs. l 3.0.4 This specification provides that entry into an OPERATIONAL MODE or other specified applicability cenditien must be made with (a) the full ccmplement of required systems, equipment or ccmcenents OPERABLE and (b) all other parameters as specified in the Limiting Conditions for Operation being met without regard for allewable deviations and cut of service provisions contained in the ACTION statements.

The intent of this prevision is to insure that facility coeration is not initiated with either required equipment or systems incperable or other specified limits being exceeded.

I Exceptions to this provision have been provided for a licited i number of specifications when startup with inoperable equipment would I not affect plant safety. These exceptiens are stated in the ACTION .

l statements of the appropriate specifications. 1

< I ADD 3.0.5 (Ettached)

NORTH ANNA ElIT 1 B 3/4 0-1

3.0.5 This specification delineates what additional con-ditions 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 in-operable 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 state-ments associated with individual systems, subsystems, trains, components, or devices to be consistent with the ACTION statements of the associated electrical power source. It allows operation to be governej by the time limits of the ACTION statement associated w'th 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 OPFTABLE. The ACTION statement provides for a 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> out-of-service time when one emergency diesel generator is not OPERABLE. If the definition of OPERABLE vere applied without consideration of Specification 3.0.S, all systems, subsystems, trains, components and devices supplied 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, provided 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, or otherwise satisfy Specification 3.0.5 (i.e., be capable of ,

performing their design function and have at least one nomal I or one emergency power source OPERABLE). If they are not satis- l fied, shutdown is required in accordance with this specification. I As a further example, Specification 3.8.1.1 requires in part that two physically independent circuits between the offsite trans-mission network and the onsite Class IE distribution system be OPERABLE. The ACTION statement provides a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 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 Specification 3.0.5 pemit the time limits for continued operation to be con-sistent with the ACTION statement for the. inoperable normal n

power sources instead, provided the other specified conditions are satisfied. In this case, this would mean that for one division the emergency power source must be OPERABLE (as must be the components supplied by the emergency power source) and all redundant systems, subsystems, trains, components and devices in the other division must be OPERABLE, or likewise 1 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.

i If these conditions are not satisfied, shutdown is required

in accordance with this specification.

In MODES 5 or 6 Specification 3.0.5 is not applicable, and thus

the individual ACTI0il statements-for each applicable Limiting Condition for Operation in these MODES must be adhered to.

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