ML20212Q798
| ML20212Q798 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 08/29/1986 |
| From: | Burstein S WISCONSIN ELECTRIC POWER CO. |
| To: | Harold Denton, Lear G Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20212Q800 | List: |
| References | |
| CON-NRC-86-78 NUDOCS 8609080052 | |
| Download: ML20212Q798 (4) | |
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Wisconsin Electnc eom coww 231 W MICHIGAN.Po 90X2046. MILWAUKEE.Wl5320; (414)277-2345 NRC-86-78 CERTIFIED MAIL August 29, 1986 Mr. H. R. Denton, Director Office of Nuclear Reactor Regulation U. S. NUCLEAR REGULATORY COMMISSION Washington, D.
C.
20555 Attention: Mr. George Lear, Project Director PWR Project Directorate 1 Gentlemen:
DOCKETS 50-266 and 50-301 TECHNICAL SPECIFICATION CHANGE REQUEST 112 LIMITING CONDITIONS FOR OPERATION, COMPONENT COOLING SYSTEM POINT BEACH NUCLEAR PLANT, UNITS 1 AND 2 In accordance with 10 CPR 50.59(c), Wisconsin Electric Power Company (Licensee) heaby requests an amendment to Facility Operating Licenses DPR-24 and DPR-27 for Point Beach Nuclear Units 1 and 2, respectively.
The purpose of this P1 ant, proposed amendment is to change the wording of Point Beach Nuclear Plant, Units 1 and 2, Technical Specification 15.3.3.C, Limiting Conditions for Operation (LCO), Component Cooling System, to correspond to a change in the system configuration.
Wisconsin Electric is presently upgrading the component cooling system. System modifications include the installation of a fourth component cooling heat exchanger.
The installation of a fourth component cooling heat l
exchanger will improve the system's reliability and l
availability.
The configuration of the system will provide one heat exchanger aligned to each unit and two shared spare heat exchangers which can be aligned to either unit.
To reflect this change to the facility in the Technical Specifications, the following changes to Technical Specification 15.3.3 C are proposed for year approval:
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R. Denton August 29, 1986 Page 2 1.
Specification 15.3.3.C.l.b, Single Unit Operation The existing specification requires both component cooling heat exchangers which can be aligned to the unit to be operable before a unit is made critical.
The proposed change, "Either the component cooling heat exchanger associated with the unit together with one of the shared spare heat exchangers are operable or the two shared spare heat exchangers are operable," reflects the flexibility in system alignment made possible by the additional heat exchanger.
The preposed snendment does not change the limiting condition that two component cooling heat exchangers which can be aligned to that unit are operable.
2.
Specification 15.3.3.C.2 and Specification 15.3.3.C.2.b, Single Unit Operation The existing Specification 15.3.3.C.2.b permits one ccmponent cooling heat exchanger to be cut of service during power operation of a single unit provided that repairs can be completed within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.
The proposed change, "Two heat exchangers which may be aligned to the operating unit may be out of service provided repairs can be completed within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />," reflects the improved capability of the total system to perform its function without limiting the operation of the units.
With the additional heat exchanger, two heat exchangers may be out of service at one time with the third heat exchanger aligned to the unit.
Therefore, the proposed amendment does not change the intent of the present LCO that a single unit may continue to be operated at power for up to 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> with only one heat exchanger 3.
Specification 15.3.3.C.2 and Specification 15.3.3.C.2.b, Two Unit Operation The existing specification permits one component cooling heat exchanger to-be out of service during power operation of both units provided that repairs can be completed within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.
The proposed change, "Two heat exchangers may be out of service provided repairs can be completed within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />," reflects the improved capability of the total system to perform its
Mr. H. R. Denton August 29, 1986 Page 3 function without limiting the operation of the units.
With an additional heat exchanger, any combination of two heat exchangers which are out of service allows alignment of one operable heat exchanger to each operating unit.
Therefore, the proposed amendment does not change the condition that both units may continue to operate at power.for up to 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> with a single heat exchanger aligned to each unit.
Additionally, basing the limiting condition for the power operation of one or two reactors on one passive component other than the heat exchangers being out of service has been deleted from Specification 15.3.3.C.2.b, Single Unit Operation and Two Unit operation.
The removal from service of a passive component in the system would not necessarily force the system to be aligned so that no back-up alignment could be made.
Aside from the above, the current wording makes the specifications redundant.
If one or more passive components are out of service resulting in the inoperability of a portion of the component cooling system, the operation of the reactor (s) is still limited by the conditions specified in the entirety of Specification 15.3.3.C.
These amendments should become effective after completion of the referenced modification of the component cooling system.
These amendments, therefore, delete the footnote at the bottom of Page 15.3.3-5 and the associated asterisks regarding the installation of the additional heat exchanger.
We anticipate completion of the modification in September 1986.
We have reviewed each of the changes to the Technical Specifications proposed in this license amendment application with respect to the criteria of 10 CFR 50.92 and have determined that this amendment application does not involve a significant hazards consideration.
As discussed above, the changes to the Technical Specifications are proposed in order that the specifications accurately account for the component cooling system configuration which is presently being modified to include an additional shared spare heat
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s Mr. H. R. Dentor.
Augsut 29, 1986 Page 4 exchanger.
The required number of operable heat exchangers per unit for LCO's described in Technical Specification 15.3.3.C. is unchanged.
Therefore, the proposed amendment does not (1) involve an increase in the probability or consequences of an accident previously evaluated, or (2) create the possibility of a new or different kind of accident than any accident previously evaluated, or (3) involve a reduction in a margin of safety.
In accordance with the Ccmmission's regulations, we are enclosing three signed originals and, under separate cover, forty copies of this amendments application.
We have also enclosed a check for the amount of $150 for the application fee prescribed in 10 CFR 170.
Please contact us if you have any questions concerning this request.
Very truly yours, n
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Sol urstein Vice Chairman of the Board Enclosure (Check 921189 )
Copics to NRC Resident Inspector R. S.
Cullen, PSCW Subscribe,qandsworntobeforeme this n el - day of Auud,1986.
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Notary Public, Sta'te of Wisconsin 5!27!9 d.
My Commission expires l
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