ML20235Z507

Application for Amend to Licenses NPF-35 & NPF-52,removing Resistance Temp Detector Bypass Manifold.Revs 1 to Nonproprietary WCAP-11309 & Proprietary WCAP-11308 Encl.Rev 1 to WCAP-11308 Withheld (Ref 10CFR2.790).Fee Paid

ML20235Z507
Person / Time
Site:	Catawba
Issue date:	07/22/1987
From:	Tucker H DUKE POWER CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML19292H566	List: ML20235Z507 ML20235Z549 ML20235Z584
References
TAC-65524, TAC-65525, NUDOCS 8707270316
Download: ML20235Z507 (5)

Text

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DUKE POWER GOMPANY I*.O. Box 3318Ep citAHLOTTE, N.C. 28242

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July 22, 1987 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 Re: Catawba Nuclear Station, Units 1 and 2 Docket Nos. 50-413 and 50-414 Proposed Technical Specification Changes Relative to RTD Bypass Manifold Removal

Dear Sir:

' Attached are proposed license amendments for the Catawba Nuclear Station Facility Operating Licenses NPF-35 (Unit 1) and NPF-52 ('Jnit 2).

The proposed Technical Specification changes support a planned station modification, removal of the Resistance Temperature Detector (RTD) Bypass Manifold.

The changes relate to response time and time constants in the calculation of Overpower Delta-T and Overtemperature Delta-T trip setpoints.

The planned removal of the RTD Bypass Manifold System is being performed to improve plant operation and reduce radiation exposure to workers.

Attachment I is a Westinghouse report (WCAP-11308. Rev. 1) which describes the RTD Bypass removal modification and the analyses which were performed to support continued operation with the new system. Please note that Attachment I is a Westinghouse Electric Corporation proprietary document, and as such is requested to be withheld from public disclosure. Along with the WCAP is a Westinghouse Application for Withholding, CAW-87-051, an accompanying affidavlt'and a Proprietary Information Notice. The affidavit which accompanies this letter' sets forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in paragraph.(b)(4) of 10 CFR Section 2.790. A non proprietary version is presented as Attachment VII (WCAP-11309, Rev. 1). Along with each WCAP is supplemental information in the form of Enclosures 1 and 2.

Enclosure 1 discusses RCS nozzle and thermowell locations.

Enclosure 2 provides Catawba RTD Eypass Elimination uncertainty calculations in addition to those already contained in the WCAP. , >

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U. S. Nuclear Regulatory Commission July 22, 1987 Page Two Attachment II to this letter contains the Technical Specification changes which will be required as a result of the modification. Attachment III contains a Technical Justification and Safety Analysis, and Attachment IV provides an analysis conforming to the rtandards contained in 10 CFR 50.92 as required by 10 CFR 50.91.

This analysis concludes that the proposed amendments would not have adverse safety impact. Attachment V delineates a " gross estimate" of the occupational radiation exposure for the RTD bypass modification. Attachment VI is marked-up Catawba FSAR pages. Thr.se pages will be incorporated into the next FSAR update.

Please note that because these changes involve hardware modifications which may not occur coincident with staff approval of the amendments, it is necessary to provide both pre-and post-modification values for the affected Technical Specifications.

Please note that in order to implement the modification on Catawba Unit 2 during the first refueling outage, approval of this amendment will be needed and is requested by December 15, 1987. The modification for Unit 1 is currently scheduled for January 1989.

This request involves cne application for amendment to Catawba's Technical Specifications. Accordingly, pursuant to 10 CFR 170.21 a check for $150.00 is enclosed.

Pursuant to 10 CFR 50.91 (b) (1) the appropriate South Carolina State Official is being provided a copy of this amendment request.

Please feel free to contact us if your require any additional information.

Very truly yours,

!W Hal B. Tucker RWO/93/sbn Attachment xc: Dr. J. Nelson Grace, Regional Administrator U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr. Heyward Shealy, Chief Bureau of Radiological Health South Carolina Department of Health &

Environmental Control 2600 Bull Street Columbia, South Carolina 29201

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U. S. Nucinar R:gulatory Commission July 22, 1987 Page Three xc: American Nuclear Insurers e/o Dottie Sherman, AN1 Library The Exchange, Suite 245 270 Farmington Avenue Farmington, CT 06032 M&M Nuclear Consultants 1221 Avenue of the Americas New York, New York 10020 INPO Records Center Suite 1500 l 1100 Circle 75 Parkway  !

Atlanta, Georgia 30339 Mr. P. K. Van Doorn NRC Resident Inspector Catawba Nuclear Station l

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U. S. Nuclear Regulatory Commission July 22, 1987 Page Five HAL B. TUCKER, being duly sworn, states that he is Vice President of Duke Power Company; that he is authorized on the part of said Company to sign and file with the Nuclear Regulatory Commission this revision to the Catawba Nuclear Station License Nos. NPF-35 and NPF-52; and that all statements and matters set forth therein are true and correct to the best of his knowledge.

o Hal B. Tucker, Vice President Subscribed and sworn to before me this 22nd day of July, 1987.

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My Commission Expires:

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i ATTACHMENT I WCAP 11308, REV. I "RTD BYPASS ELIMINATION LICENSING REPORT FOR CATAWBA UNITS 1 AND 2" (PROPRIETARY CLASS 2) l

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