ML19323G346
| ML19323G346 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck, Millstone File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 05/31/1980 |
| From: | NORTHEAST NUCLEAR ENERGY CO. |
| To: | |
| Shared Package | |
| ML19323G342 | List: |
| References | |
| TAC-42625, NUDOCS 8006020211 | |
| Download: ML19323G346 (7) | |
Text
.
r3 LJ DOCKET NO. 50-336 ATTACIIMENT 1 MILLSTONE NUCLEAR POWER STATION, UNIT NO. 2 PROPOSED REVISIONS TO TECHNICAL SPECIFICATIONS EiY, 1980 8006020211
May 12,1979 l1.0 DEFINITIONS DEFINED TERMS 1.1 The DEFINED TERMS of this section appear in capitalized type and are applicable throughout these Technical Specifications.
THERMAL POWER 1.2 THEPMAL POWER shall be the total reactor core heat transfer rate to the reactor coolant.
RATED THERMAL POWER 1.3 RATED THERMAL POWER shall be a total reactor core heat transfer rate to the reactor coolant of 2700 MWt.
OPERATIONAL MODE 1.4 An OPERATIONAL MODE shall corresrond to any one inclusive com-bination of core reactivity condition, power level, and average reactor coolant temperature specified in Table 1.1.
ACTION 1.5 ACTION shall be those additional requirements specified as corollary statements to each principle specification and shall be part of the specifications.
OPERABLE - OPERABILITY 1.6 A system, subsystem, train, component, or device shall be OPERABLE or have OPERABILITY when it is capable of performing its specified func tion (s).
Implicit in this definition shall be the assumption that all necessary attendant instrumentation, controls, normal and emergency electrical power sources, coolin, or seal water, lubrication, or other auxiliary equipment that are required for the system, subsystem, train, component, or device to perform its function (s) are also capable of performing their related support function (s).
REPORTABLE OCCURRENCE 1.7 A REPORTABLE OCCURRENCE shall be any of those conditions specified as a reportable occurrence in Revision 4 of Regulatory Guide 1.16,
" Reporting of Operatin Information - Appendix "A" Technical Specifications".
l MILLSTONE - UNIT 2 1-1 m
August 1,1975 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 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, the unit shall be placed in at least HOT STANDBY within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 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 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 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 to these requirements shall be stated in the individual specifications.
3.0.4 Entry into an OPERATIONAL MODE shall not be made unless the conditions of the Limiting Condition for Operation are met without reliance on provisions contain :d 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 When a system, subsystem, train, component, or device 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, the unit shall be placed in at least HOT STANDBY within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, in at least HOT SHUTDOWN witnin 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 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
This specification is not applicable in MODES 5 or 6.
MILLSTONE - UNIT 2 3/4 0-1
~
i August 1,1975 i
l 3/4 LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS 3/4.0 APPLICABILITY SURVEILLANCE REQUIREMENTS 4.0.1 Surveillance Requirements shall be applicable during the OPERATIONAL MODES associated with individual Limiting Conditions for Operation unless otherwise stated in an individual Surveillance Requirement.
4.0.2 Each Surveillance Requirement. Sell be performed within the specified time interval with:
a.
A maximum allowable extension not to exceed 25%
of the test interval, and b.
A total maximum combined interval time for any 3 consecutive tests not to exceed 3.25 times the specified test interval.
t I
4 MILLSTONE - UNIT 2 3/4 0-la 4 -
.~
3/4.0 APPLICABILITY j
BASES The specifications of this section provide the general requirements l
applicable to each of the Limiting Conditions for Operation and Surveil-lance Requirements within Section 3/4.
3.0.1 This specification states the applicability of each specifi-cation in terms of defined OPERATIONAL MODES and is provided to delineate l
specifically when each specification is applicable.
3.0.2 This specification defines those conditiens necessary to constitute compliance with the terms of an individual Limiting Condition for Operation and associated ACTION requirement.
i 3.0.3 This specification delineates the ACTION to be taken for l
circumstances not directly provided for in-the ACTION statements and whose occurrence would violate the intent of the specification. The allotted times allow for a controlled shutdown and/or cooldown, thus, not requiring transients which could lead to off-normal operating conditions.
For example, Specification 3.5.1 requires each Reactor Coolant System l
accumulator to be OPERABLE and provides explicit ACTION requirements if one accumulator is inoperable. Under the terms of Specification 3.0.3, if more than one accumulator is inoperable, the unit is required to be in at least HOT STANDBY within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, and in at least HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. As a further example, Specification 3.6.2.1 requires two Containment Spray Systems to be OPERABLE and provides explicit ACTION requirements if one spray system is inoperable: Under the terms of Specification 3.0.3, if both of the required Containment Spray Systems are inoperable, the unit is required to be in at least 4
HOT STANDBY within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, in at least HOT SHUTDOWN within the following 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 in the next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
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 must be made with (a) the full complement of required systems, equipment or components OPERABLE and (b) all other parameters as speci-fied in the Limiting Conditions for Operation being met without regard I
for allowable deviations and out of service provisions contained in the ACTION statements.
The intent of this provision is to insure that facility operation is not initiated with either required equipment or systems inoperable or other limits being exceeded.
Except' ions 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 appropriate specifications.
MILLSTONE - UNIT 2 8 3/4 0-1 l
s__
~
e 3/4.0 APPLICABILITY BASES 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 inoperable because its normal or emergency power source is inoperable and a system, subsystem, train, comp 3nent, or device in another division is inoperable for another reason.
The provisions of this specification permit the ACTION statements 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 governed by the time limits of the ACTION 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 OPERABLE. The ACTION statement provides fot a 72-hour out-of-service time when one emergency diesel generator is 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 emergency power source would also be i
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 corre-sponding normal power source must be OPERABLE, and all redundant systems, subsystems, trains, components, and devices must be OPERABLE, or otherwise satisfy Specification 3.0." (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, shutdown is required in accordance with this specification.
As a further example, Specification 3.8.1.1 requires in part that two physically independent circuits ! etween the offsite transmission network and the onsite Class lE distribution system be OPERABLE. The ACTION l
statement provides a 24-hour 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 davices supplied by the inoperable MILLSTONE - UNIT 2 8 3/4 0-la i
i
3/4.0 APPLICABILITY BASES 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 permit the time limits for continued operation to be consistent 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 the emergency power source must be OPERABLE (as must be the components supplied by the emergency power source) and all redundant systems, subsystems, trairis, 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 word;, both emergency power sources must be OPERABLE and all redundant systems, subsystems, trains, components, and devices in both divisicas must also be OPERABLE.
If these conditions are not satisfied, shutdown is required in accordance with this specification.
In MODEi 5 or 6, Specification 's.0.5 is not applicable and thus, the indi.. dual ACTION statements for each applicable Limiting Condition for Operation in these MODES must be adhered to.
MILLSTONE - UNIT 2 B 3/4 0-lb