ML20154H284

Advises That Licensee 880422 & 0804 Requests for Relief from Certain ASME Boiler & Pressure Code,Section XI Testing Requirements Granted Per 10CFR50.55a(g)(6)(i).Staff Safety Evaluation Encl

ML20154H284
Person / Time
Site:	Sequoyah
Issue date:	09/15/1988
From:	Black S NRC OFFICE OF SPECIAL PROJECTS
To:	White S TENNESSEE VALLEY AUTHORITY
Shared Package
ML20154H289	List: ML20154H284 ML20154H307 ML20154H327
References
TAC-61835, TAC-61836, NUDOCS 8809210246
Download: ML20154H284 (3)

Text

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8(, / % a UNITED STATES

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NUCLEAR REGULATORY COMMISSION

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September 15, 1988

• . W et Nos 50-327/328 D

Mr. S. A. White Senior Vice President. Nuclear Power Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801

SUBJECT:

RE0 VEST FOR PELIEF FRCM ASME BOILER AND PRESSURE VESSEL CODE, SECTION XI, INSERVICE TESTING PROGRAM - ULTRASONIC FLOW MEASUREMENT (TAC 61835/61836) - SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 By letters dated April 22 and August 4, 1988, the Tennessee Valley Authority (TVA) submitted requests for relief, for Sequoyah, Units 1 and 2, from j

certain American Society for Mechanical Engineers (ASME) Boiler and Pressure Code Section XI, testing requirements.

These requests were for relief from instrurent accuracy requirements of IWP-4110 for flow neasures for the following pumps:

safety injection (SI), containment spray (CS), essential raw cooling water (ERCW), component cooling water (CCW), residual heat removal (RHR) and diesel fuel oil transfer (DFOT).

In addition. TVA requested relief r

from the requirements of !WV-3411 for the perfornance of a quarterly stroke test for the ERCW valves.

The staff has reviewed the relief requests and finds them acceptable.

The basis for our conclusion is provided in the enclosed staff Safety Evaluation (SE).

The staff concludes that the Code testing requirements are impractical to perform and has determined, pursuant to 10 CFR 50.55a(a)(3)(1), that the proposed alternatives to the described requirements will provide an acceptable i

level of quality and safety.

The staff also concludes that granting relief where the Code requirements are impractical is authorized by law and will not l

endanger life or property, or the comon defense and security and is otherwise in the public interest considering the burden that could result upon TVA if J

the Code requirements were imposed upon Sequoyah, Units 1 and 2.

Accordingly.

pursuant to 10 CFR 50.55a(g)(6)(1) of the Comission's regulations. TVA is l

granted the requested relief, as documented in the enclosed staff SE, from the t

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Mr. S. A. White September 15, 1988 Code test requirements for the above listed pumps and valves, on the condition that TVA fulfills the comitments set forth in TVA's letters of April 22 and August 4, 1988. These comitments are discussed in the enclosed SE.

Sincerely.

Original Signed by Suzanne C. Black, Assistant Director for Projects TVA Projects Division Office of Special Projects

Enclosure:

Safety Evaluation cc w/ enclosures:

See next page DISTRIBUTION

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i Mr. S. A. White Sequoyah Nuclear Plant CC:

Regional Administrator, Region !!

General Counsel Tennessee Valley Authority U.S. Nuclear Regulatory Comission i

400 West Summit Hill Drive 101 Marietta Street, N.W..

i Atlanta, Georgia 30323 l

Ell 833 Knoxville, Tennessee 37902 l

Resident Inspector /Sequoyah NP l

c/o U.S. Nuclear Regulatory Commission Mr. R. L. Gridley l

Tennessee Valley Authority

?600 Igou Ferry Road SN 157B Lookout Place Soddy Daisy, Tennessee 37379 Chattanooga, Tennessee 37402-2801 l

Mr. Michael H. Pobley, Director Mr. John T. LaPoint

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Tennessee Valley Authority Division of Radiolohical Fealth T.E.R.R.A. Building, 6th Floor l

Sequoyah Nuclear Plant 150 9th Avenue North P.O. Box 2000 l

Soddy Daisy, Tennessee 37379 Nashville, Tennessee 37219-5404 Dr. Henry Myers, Science Advisor Mr. M. Ray l

Tennessee Valley Authority Comittee on interior and Insular Affairs Sequoyah Nuclear Plant U.S. House of Representatives P.O. Box 2000 Soddy Daisy, Tennessee 37379 Washington, D.C.

20515 Tennessee Valley Authority Mr. D. L. Williams Rockville Office Tennessee Valley Authority 400 West Sumit Hill Drive 11921 Feckville Pike Suite 402 W10 885 Rockville, Maryland 20852 Knoxville Tennessee 3)902 County Judge Hamilton County Courthouse Chattanooga, Tennessee 37402 l

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