ML20249B060
| ML20249B060 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 06/16/1998 |
| From: | NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML20249B056 | List: |
| References | |
| NUDOCS 9806220023 | |
| Download: ML20249B060 (4) | |
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NUCLEAR REGULATORY COMMISSION f
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l CAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO57 TO FACILITY OPERATING LICENSE NO. NPF-86 i
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NORTH ATLANTIC ENERGY SERVICE CORPORATION SEABROOK STATION. UNIT NO.1 DOCKET NO. 50-443 J
1.0 INTRODUCTION
By letter dated March 23,1998, the North Atlantic Energy Service Corporation (the licensee) submitted License Amendment Request 98-10," Inclusion of New Technical Specification 3.0.5 Administrative Controls." The requested changes would modify the Technical Specifications (TSs) to incorporate administrative controls which are currently approved for use in NUREG-1431, "Standardard Technical Specifications - Westinghouse Plants." New TS 3.0.5 provides an exception to TSs 3.0.1 and 3.0.2 to retum equipment to service under administrative control to demonstrate its operability or the operability of other equipment. This exception applies only to equipment that has been placed out of service, or declared inoperable, to comply with TSs ACTION statements.
2.0 BACKGROUND
This license amendment request has been submitted pursuant to the requirements of 10 CFR 50.59,10 CFR 50.90, and 10 CFR 50.4. Presently, the TSs do not explicitly state the administrative controls necessary to return certain types of equipment to service that were removed from service, or declared inoperable, in order to comply with a TS ACTION statement.
For certain types of equipment, it is necessary to retum that equipment to service for the purpose of demonstrating that the equipment, or that other equipment, is operable. For example, a containment isolation valve that was closed to comply with an action statement must be opened to demonstrate its operability. Another example is a bistable that was placed in the tripped state to comply with an action statement must be taken out of the tripped state to j
demonstrate the operability of another channel in the same system. Consequently, the current TSs may prevent placing certain types of equipment back into service which may reduce the j
margin of safety and preclude appropriate and necessary testing.
Therefore, the licensee has requested to incorporate the administrative controls currently l
approved for use in NUREG-1431, " Standard Technical Specifications - Westinghouse Plants."
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9006220023 990616 PDR ADOCK 05000443 P
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2-s 3.0 EVALUATION The proposed change is to add Specification 3.0.5, along with the Bases, to the Seabrook Station's T8s and revise Specifications 3.0.1 and 3.0.2 to reference Specification 3.0.5 as an l
exception.
Specification 3.0.5 states:
Equipment removed from service or declared inoperable to comply with ACTIONS may be returned to service under administrative control solely to perform testing required to l
demonstrate its OPERABILITY or the OPERABILITY of other equipment. This is an except;on to specifications 3.0.1 and 3.0.2 for the system retumed to service under administrative control to perform the testing required to demonstrate OPERABILITY.
The Bases for Specification 3.0.5 states:
Specification 3.0.5. establishes the allowance for restoring equipment to service under administrative controls when it has been removed from service or declered inoperable to comply with ACTIONS. The sole purpose of this Specification is to provide an exception to Specifications 3.0.1 and 3.0.2 (e.g., to not comply with the applicable Required Action (s)) to allow the performance of required testing to demonstrate:
- a. The OPERABILITY of the equipment being retumed to service; or
- b. The OPERABILITY of other equipment.
The administrative controls ensure the time the equipment is retumed to service in conflict with the requirements of the ACTIONS is limited to the time absolutely necessary
. to perform the allowed required testing. This specification does not provide time to perform any other preventative or corrective maintenance.
An example of demonstrating the OPERABILITY of the equipment being retumed to service is reopening a containment isolation valve that has been closed to comply with I
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 required testing on another channel in the cther
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trip system.' A similar example of demonstrating the OPERABILITY of other equipment is l
taking an inoperable channel or trip system out of the tripped condition to permit the logic
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' to function and indicate the appropriate response during the performance of required testing on another r:hannel in the same trip system.
The proposed change by the licensee is consistent with NUREG-1431 (as modified by approved.
Technical Specification Task Force (TSTF) generic change Traveler TSTF-165) in that it provides -
' the necessary administrative controls to perform the testing that is required to retum certain -
types of equipment back into service.' These new administrative contmis may enhance overah i
plant safety by retuming systems or components important to plant safety to operable status in a more timely manner, Therefore, the proposed changes are acceptable. '
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4.0 STATE CONSULTATION
in accordance with the Commission's regulations, the New Hampshire and Massachusetts State <
officials were notified of the proposed issuance of the amendment. The State officials had no -
comments.
5.0 ENVIRONMENTAL CONSIDERATION
The amendment changes a requirement with respect to installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20. The NRC staff has determined that the amendment involves no sigalficant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposure. The Commission has previously issueo a proposed finding that the amendment involves no significant hazarde consideration, and there has been no public comment on such finding (63 FR 19972). Accordingly, the amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFR 51.22(b) no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendment.
6.0 CONCLUSION
The Commission has conc!uded, based on the considerations discussed above, that: (1) there is reasonable assurance that the health and Nfety of the public will not be endangered by opeistion la the proposed mann9r, (2) such activities will be conducted in compliance with the Commission's regulations, an (3) the issuance of the amendment will not be inimical to the common defense and seccfty or to the health and safety of the public.
Principal Contributor: John Harrison
- Date: June 16, 1998 I
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4 7.0 REFERENCED 1.
Code of Faderal Regulations, Title 10 - Energy, January 1,1998.
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Technical Specifications, Seabrook Station, Unit 1.
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NUREG-1431, Rev.1, standard Technical Specification, Westinghouse Plants.
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!ndustry/TSTF Standard Technical Specification Change Traveler, TSTF-165.
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