ML20107D567
| ML20107D567 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 02/01/1985 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20107D562 | List: |
| References | |
| NUDOCS 8502250025 | |
| Download: ML20107D567 (2) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION g
j WASHINGTON, D. C. 20555
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMENDMENT N0. 62 AND NO. 46 TO FACILITY OPERATING LICENSE NOS. NPF-4 AND NPF-7 VIRGINIA ELECTRIC AND P0llER COMPANY OLD DOMINION ELECTRIC COOPERATIVE NORTH ANNA POWER STATION, UNITS NO. 1 AND NO. 2 DOCKET NOS. 50-338 AND 50-339
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Introduction:==
By letter dated December 15, 1983 (Serial No. 707), revised August l', 1984 (Serial No. 707A), the Virginia Electric and Power Company requested an amendment in the fom of changes to the Technical Specifications (TS). for L
_ Operating Licenses No. NPF-4 and NPF-7 for the North Anna Power Station, Units No.1 and No. 2 (NA-182). Specifically, the change would revise the NA-1&2 TS 3.0.3 to provide consistency with the time requirements specified in the Standard TS for Westinghouse Pressurized Water Reactors -(PWR),
l Revision 4, fall 1981. TS 3.0.3 specifies, iri part, the time requirements '
that a unit shall.be placed in Mode 3 (Hot Standby), Mode 4 (Hot Shutdown) and Hode 5 (Cold Shutdown) in the event a Limiting condition of Operation (LCO) and/or associated Action Statement cannot be satisfied because. of -
circumstances in excess of those addressed in a-specification.
l Our discussion and evaluation of the proposed change is provided below.
I Discussion:
Presently, the NA-1 TS 3.0.3 states "When a LCO for Operation is not met, except as provided in the associated Action requirements, the. unit shall.be placed.in a Mode in which the specification does not apply (by placing it, as,
applicable, in:
(1)~AtleastHotStandb
- 2) 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 (3)y within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />; At'least Cold Shutdown within the t
following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />." For NA-2, TS 3.0.3. presently states the time ' '
requirement to be:
(1) 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 />;.(2) At least Hot Shutdown within the next:6 hours; and (3) At least Cold Shutdown ~within the F
following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />." Thus, it.is seen that for Mode-5 (Cold Shutdown) an inconsistency. presently exists in TS 3.0.3 for NA-182 in the specified time requirements of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> versus 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />, respectively.
The proposed change would provide consistency in the time requirements and
' identical wording to the NA-182 TS 3.0.3 and be in confomance with the NRC' approved Standardized.TS for Westinghouse PWRs by stating:
"When a Limiting Condition for Operation is not met except as provided in the associated
[Nk l
i Action requirements, within one hour Action shall be initiated to place the unit in a Mode in which the Specification does not apply by placing it, as
- 1) At least Hot Standbv within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; 2) At least Hot applicable, in:
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 (~3) 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 />."
Evaluation:
The proposed change is administrative in nature. The change provides consistency for the time requirements and identical format for NA-182 TS 3.0.3.
In addition, the proposed change is in conformance with the NRC approved Westinghouse Standard TS which are appropriately applied to NA-1A2.
Therefore, we find the proposed change to be acceptable.
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Conclusions:==
These amendments relate to changes in recordkeeping, reporting or administrative Accordingly, the amendments meet the eligibility procedures or requirements.
criteria for categorical exclusion set forth in 10 CFR 51.22(c)(10). Pursuant to 10 CFR 51.22(b), no environmental impact s.tatement or environmental assessment need be prepared in connection with the issuance of the amendments.
We have concluded, based on the considerations discussed above, that:
(1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (2) such activities will be conducted in compliance with the Commission's regulations, and the issuance of the amendment will not be inimical to common defense and security or to the health and safety of the public.
Date: February 1, 1985 Principal Contributor:
L. Engle 4
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