ML19350A621

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Advises That 45 Igniters for Unit 2 Containment at Locations Similar for Unit 1 Will Be Installed Before 810415 Fuel Loading Date,For Implementation of Interim Distributed Ignition Sys.Final Resolution of Hydrogen Control Is 820131
ML19350A621
Person / Time
Site: Sequoyah Tennessee Valley Authority icon.png
Issue date: 03/10/1981
From: Mills L
TENNESSEE VALLEY AUTHORITY
To: Schwencer A
Office of Nuclear Reactor Regulation
References
NUDOCS 8103160578
Download: ML19350A621 (1)


Text

I TENNESSEE VALLEY AUTHOR'TY CH ATTANOOGA. TENNESSEE 37401 400 Chestnut Street Tower II p,j p 9r s

March 10, 1981 C/

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'f b u,,kg/Sgg Director of Nuclear Reactor Regulation O

I Attention:

Mr. A. Schwencer, Chief Licensing Branch No. 2 g

O Division of Licensing U.S. Nuclear Regulatory Coraission 3

Washington, DC 20555

Dear Mr. Schwencer:

In the Matter of

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Docket No. 50-328 Tennessee Valley Authority

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Amendment 2 to the Sequoyah Nuclear Plant (SNP) unit 1 operating license (DPR-77) approved the Interim Distributed Ignition System (IDIS) for hydrogen control. To implement the IDIS for unit 2, TVA will install 45 igniters in the unit 2 containment at locations similar to those identified to NRC for unit 1 before the scheduled April 15, 1981, unit 2 fuel loading date.

It is TVA's position that the final resolution of the hydrogen control issue for SNP unit 2 should be the same date as for unit 1, which is January 31, 1982.

If the final hardware design and operational requirements for the hydrogen control system for SNP are completely defined as of January 31, 1982, TVA plans to implement all aspects of the final hydrogen control system for unit 2 before the,end of the first unit 2 refueling outage. Therefore, it is the TVA position that the installation of the IDIS will probably represent an interim system for unit 2, as it has for unit 1, which provides adequate safety margin for the initial period of operation of this unit.

Very truly yours, TENNESSEE VALLEY AUTHORITY

%.NQ, L. !!. Mills, Manager Nuclear Regulation and Safety Sworn togd subscr ed before me l

thii/d day of 8 M 1981 hl-Not ublic O

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