ML20236A283
| ML20236A283 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 10/16/1987 |
| From: | Tucker H DUKE POWER CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| Shared Package | |
| ML20236A286 | List: |
| References | |
| TAC-66403, TAC-66404, NUDOCS 8710220173 | |
| Download: ML20236A283 (3) | |
Text
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f-1 DUKE POWER GOMPANY '
'yg n*b3 P.O. sox 33189 citARLOTrE, N.C. 28242.
N A jJ ' OO(704) o73 4501 -
n TELEPHONE HAL B. TUCKER nce......,,
1.UCLEAR PROOttt??tOd8 J
October 16, 1987 3
U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555
Subject:
-Catawba Nuclear Station, Units:1 and 2 Docket Nos. 50-413 and 50-414 Technical Specification Amendment 1
Nuclear Service Water (RN) System
Dear Sir:
This letter contains a proposed amendment to the Technical Specifications for.
Facility Operating License Nos. NPF-35 and NPF-52 for Catawba Units 1 and 2.
The attached request involves changes to the RN System Technical. Specifications.
l contains the proposed changes to the Technical Specifications.
These changes will show that the RN System contains' components that are shared-between the two units and will allow placing the RN Syatem in its Engineered Safety Feature (ESP) alignment when the number of operable ESF channels is less i
than required.
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' contains the proposed changes and a discussion of the justification and safety analysis. The analysis is included pursuant to 10 CFR 50.91 and it has been concluded that the proposed amendment does not involve significant hazards considerations.
1 provides the revised FSAR pages which will be incorporated in a future update to the FSAR. These changes reflect revised flow analyses, a modification to the design and a change in the design bases of the system. The-modification involved deletion of the automatic transfer'of suction sources from Lake Wylie to the Standby Nuclear Service Water Pond (SNSWP) on an Sp signal.
This change was reviewed and approved in the Staff's SER dated September 30, 1987. The design bases of the RN System was changed by deleting the' assumption of a simultmeous LOCA and seismic event. - It was found that this assumption was unnecessary in meeting the requirements of GDC-5 and -44 or the' Standard Review-Plan. Furthermore such an event is probabistically insignificant.
It'is t
requested that the NRC~ review and approve this change.
In Duke's August 14, 1987 letter, a description was provided of actions taken-L prior to an emergency diesel generator being out of service for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
Plant 1
procedures-required that the unaffected unit be placed in a non-degrade'd
.l condition by (1) pre-aligning the unaffected train'for SNSWP recirculation and
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(2) isolating or otherwise restricting flow to the degraded train of the degraded i
unit in c manner which insures adequate post-accident flows to components on this h
train of the other unit. With the development of the attached revised Action
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Statements,'preQ 11gnment to the SNSWP is no longer considered necessary.
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8710220173 M71016 PDR-ADOCK 03000413J
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$CK f/$O'00 l
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U. S. Nuclear Regulatory Commission October 16, 1987 Page Two j
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i This proposal involves one amendment request to Catawba's Technical Specifications. Accordingly, pursuant to 10 CFR 170.21 a check for $150.00 is
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enclosed. Also attached is a check for $150.00 for NRC review of the Catawba Nuclear Service Water System design as requested by Reba M. Diggs' letter of August 31, 1987.
Pursuant to 10 CFR 50.91 (b) (1) the appropriate South Carolina State Official is being provided a copy of this amendment request.
Very truly yours m,
/Y A Hal B. Tucker RWO/130/sbn Attachments q
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Dr. J. Nelson Grace, Regional Administrator j
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 f
2600 Bull Street Columbia, South Carolina 29201 American Nuclear Insurers c/o Dottie Sherman, ANI Library The Exchange, Suite 245 270 Farmington Avenue 3
Farmington, CT 06032 l
M&M Nuclear Consultants 1221 Avenue of the Americas New York, New York 10020 INPO Records Center Suite 1500
'1100 Circle 75 Parkway Atlanta, Georgia 30339 i
Mr. P. K. Van Doorn i
NRC Resident Inspector l
Catawba Nuclear Station
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s U.';S. Nuclear Regulatory Commission".
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!Octoberf16,1987 Page.Three
- HAL.B.' TUCKER, being' duly l 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 Technical Specifications, Appendix A, to. License No. NPF-35 and NPF-52; and that all'~ statements land matters. set forth therein'are true and correct to the best of his knowledge.
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f H'al B. Tucker, Vice President Subscribed and sworn to before me tnis 16th day of Oct.ober, 1987.
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