ML20040G037

Forwards Request for Addl Info Needed to Complete Evaluation of Application for OL

ML20040G037
Person / Time
Site:	Comanche Peak
Issue date:	01/07/1982
From:	Youngblood B Office of Nuclear Reactor Regulation
To:	Gary R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
Shared Package
ML20040G038	List: ML20040G037
References
NUDOCS 8202110158
Download: ML20040G037 (3)

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TERA DEisenhut PDR y7 g

JYoungblood LPDR SBurwell NSIC MRushbrook TIC SHanauer ACRS(16)

RMattson Docket Hos.: 50-445 HThompson and 50-446 RVollmer RHartfield, MPA OELD Mr. R. J. Gary 0IE(3)

Executive Vice President and FRosa General Manager TDunning HLi Texas Utilities Generating Company 2001 Bryan Tower Dallas, Texas 75201 4

Subject:

Request for Additional Information for Comanche Peak Steam Electric Station, Units 1 and 2 Enclosed is a request for additional information which we require to complete our evaluation of your application for operating licenses for Comanche Peak Steam Electric Station, Units 1 and 2.

This request for additionalif nformation is the result of our continuing review on Westinghouse plants for, operating license applications.by the Instrumentation and Control Systems Branch.. s Please amend your FSAR to include the information requested in the Enclosure.

s A timely response to these questions will enable us to proceed with this review.

Should you have any questions concerning this request for additional information, i

please contact us.

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Sincerely,

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g flSW~ ~ ED Original signed by:

q B. J. Youngblood yn 3 q;. gp 9-B. J. Youngblood, Chief

$MMM3 '7 Licensing Branch No. 1 m

Division of Licensing 4

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Enclosure:

Request for Additional Information "The reporting and/or recordkeeping l

requirements contained in this letter cc w/ encl.: See next page arrect rever than ten respondents ;

therefore, Dr.3 clearance is not required (202110158 920107 PDR ADOCK 05000445 under P.L.90-511. "

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! unc ronu ais oo-coi nncu oao OFFICIAL RECORD COPY usom u-mm

• *Mr. R. J. Gary Executive Vice President and General Manager Texas Utilities Generating Company 2001 Bryan Tower Dallas, Texas 75201

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Nicholas S. Reynolds, E'sq.

J. Marshall Gilmore cc:

Debevoise & Liberman 1060 West Pipeline Road 1200 Seventeenth Street Hurst, Texas 76053 Washington, D. C.

20036 Resident Inspector / Comanche Peak Spencer C. Relyea, Esq.

Nuclear Power Station Worsham, Forsythe & Sampels c/o U. S. Nuclear Regulatory 2001 Bryan Tower Commission Dallas, Texas 75201 P. 0. Box 38 Glen Rose, Texas 76043 Mr. Homer C. Schmidt Manager - Nuclear Services Richard Fouke Texas Utilities Services, Inc.

Citizens for Fair Utility Regulation 1668-B Carter Drive 2001 Bryan Tower

_ Arlington, Texas 76010 Dallas, Texas 75201 Mr. H. R. Rock Gibbs and Hill, Inc.

393 Seventh Avenue New York, New York 10001 Mr. A. T. Parker Westinghouse Electric Corporation P. O. Box 355 Pittsburgh, Pennsylvania 15230 David J. Preister Assistant Attorney General Environmental Protection Division P. O. Box 12548, Capitol Station Austin, Texas 78711 Mrs. Juanita Ellis, President Citizens Association for Sound Energy 1426 South Polk Dallas, Texas 75224 4

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,s Request for Additional Information

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.=t Comanche Peak Steam Electric Station, Units 1 and'2 ~

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i 032.0 INSTRUMENTATION & CONTROL SYSTEMS ~ BRANCH:

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032.109 Steam Generator Level Control ~

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The protection system for Commanche Peak' initiates isolation of the fe'ed-j.

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water system based on 290ut of 3 higN' steam generator level.

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A of the three. steam generator;1evel 'sig'nals may be'used for level control g the failure of this level measurement channel would result in steam l gen.

erator overfil.1 by action of the level control system. As a consequence-of such a failure, both channels of the protection sys' tem must operate!-

to provide the required protective action (i. e. 2 out of 2 high level trip).

We believe that this scenario leads to a condition which is in direct violation of Section 4.7.3 of IEEE-279, and 10 CFR Part 50.55 a(h).

Therefore, we request that you provide the basis that this design is accept-able or that you propose a system modification (e.g. initiate high level i

trip based on 2/4) which othenvise resolves this concern.

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