ML19340E988

Interim Deficiency Rept 2 Re Environ Qualification of Electrical Equipment Associated W/Auxiliary Feedwater Pumps. Analytical Model for Isolation Valve Cubicle Structure Has Been Developed.Next Rept to Be Submitted by 810820

ML19340E988
Person / Time
Site:	South Texas
Issue date:	01/09/1981
From:	Oprea G HOUSTON LIGHTING & POWER CO.
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, ST-HL-AE-599, NUDOCS 8101160454
Download: ML19340E988 (4)

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The Light NE Uf Houston Lighting & Power P.O. Box 1700 Houston. Texas 77001 (713)228 9211 January 9, 1981 ST-HL-AE-599 SFN: V-0530

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Mr. Karl Seyfrit Director, Region IV Nuclear Regulatory Commission -

611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76012 e

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Dear Mr. Seyfrit:

South Texas Project Units 1&2 Docket Nos. STN 50-498, STN 50-499 Second Interim Report Concerning Environmental Qualification of Electrical Equipment Associated with the Auxiliary Feedwater Pumps On August 25, 1980, in accordance with 10CFR50.55(e), Houston Lighting

& Power Company notified your office of an item concerning environmental qualification of electrica' equipment associated with the auxiliary feedwater ppmos. The following is a itatus update of information concerning activities reiating to the subject iten.

An analytical model for tne Isolation Valve Cubicle (IVC) structure which houses the subject electrical equipment has been developed. The analysis of the IVC structure for post accident temperature and pressure profiles is being perfonned.

Class IE electrical equipment whose qualification status may be affected by the IVC analysis has been identified. The results of the analysis will be incorporated into appropriate design documents and equipment qualification specifications will be revised accordingly.

i The next report concerning this item will be submitted to your office by August 20, 1981.

If there are any questions concerning this item, please contact Mr.

Michael E. Powell at (713) 676-8592.

Very truly,yours,

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. Opr Jr.

Exe utive ice President MEP/mmf h0Iq t 6I l LLsu 01160%% s

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January 9,1981 Houston Lighting & Pimer compam ST-HL-AE-599 SFN: V-0530 Page 2 cc: J. H. Goldberg D. G. Barker Howard Pyle R. L. Waldrop H. R. Dean D. R. Beeth J. D. Parsons G. B. Painter L. K. Englisn A. J. Granger R. A. Frazar H. S. Phillips (NRC)

.1. O. Read (Read-Poland,Inc.)

M. D. Schwar2 Baker & Botts)

R. Gordon Gooch Baker & Botts)

J. R. Newman Lowenstein, Newman, Reis, Axelrad & Toll)

Director, Office of Inspection & Enforcement Nuclear Regulatory Commission Washington, D. C. 20555

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• I January 9,1981 ST-HL-AE-599 Housann Lighting & Power Comp.un' SFN: V-0530 Page 3 M. L. Borchelt Executive Vice President Central Power 6 Light Company P. O. Box 2121 Corpus Christi, Texas 78403 R. L. Range Central Power 6 Light Co .pany P. O. Box 2121 Corpus Christi, Texas 78403 R. L. Hancock Director of Electrical Utilities City of Austin P. O. Box 1088 Austin, Texas 78767 T. H. >behlenbeck City of Austin P. O. Box 108S Austin, Texas 78767 J. B. Poston Assistant General Manager of Operations City Public Service Board P. O. Box 1771 San Antonio, Texas 78296 A. vonRosenberg City Public Service Board P. O. Box 1771 San Antonio, Texas 76296

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January 9, 1981 ST-HL-AE-599 Houston Lighting & Pimer Compa") SFN: V-0530 Page 4 Charles Bechoefer, Esquire Chairman, Atomic Safety & Licensing Board U. S. Nuclear RegulatcPy Cornmission Washington, D. C. 20555 Dr. Jares C. Lamb, III 313 Woodhaven Road Chapel Hill, North Carolina 27514

Dr. Emmeth A. Luebke 4tomic Safety & Licensing Commission U. S. Nuclear Regulatory Commission Washingtcr., D. C. 20555 Citizens for Equitable Utilities c/o Ms. Peggy Buchorn Route 1, Box 1684 Brazoria, Texas 77422 Pat Coy Citizens Concerned About Nuclear Power 5106 Casa Oro San Antonio, Texas 77422 Betty Wheeler Hoffman, Steeg & Wheeler 1008 S. Madison Amarillo, Texas Brian E. Rerwick Assistant Atcorney Gere ral for the State of Texas P. O. Box 12548 Capitol station Austin, Texas 78711

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Bernard M. Bordenick Hearing Attorney

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Office of the Executive Legal Director *

! U. S. Nuclear Regulatory Commission Washington, D. C. 20555

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