ML19339A957

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Advises of Augmented Low Power Startup Test Program Requirements.Test 8 May Be Deleted If Operator Training Includes Simulation of Event on Simulator Using Westinghouse & TVA Test Data.Test 9B May Be Modified
ML19339A957
Person / Time
Site: Summer 
Issue date: 10/23/1980
From: Tedesco R
Office of Nuclear Reactor Regulation
To: Nichols T
SOUTH CAROLINA ELECTRIC & GAS CO.
References
NUDOCS 8011060068
Download: ML19339A957 (2)


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c Docket No.-50-395 8 3 1980

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Mr. T. C. Nichols, Jr.

Vic. President & Group Executive Nuciear Operations South Carolina Electric & Gas Company P. O. Box 764 Columbia, South Carolina 29281

Dear Mr. Nichols:

SUBJECT:

AUGMENTED LOW-POWER STARTUP TEST PROGRAM - VIRGIL C. SUMMER NUCLEAR STATION, UNIT 1 One result of the Three Mile Island accident studies is the requirement for operating license applicants to perform an augmented low-power startup-test

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program to provide operator training and design verification regarding natural circulation conditions. Refer to NUREG-0694, items I.C.7 (Fuel load requirement) and I.G.1 (Fuel load and full power requirement). The Tennessee Valley Authority (TVA) proposed a program consisting of ten tests for the Sequoyah facility. There has been some uncertainty as to which of these tests should be performed by each of the other OL applicants at their facilities.

It is the NRC staff's. position that each OL applicant should perform tests similar to the tests proposed by TVA for Sec,uoyah prior to exceeding five i

percent of rated thermal power except for Test 8, " Establishment of Natural

l Circulation From Stagnant Conditions," and Test 98, " Boron Mixing and Cooldown."

Test 8 may be deleted if training for each operator is provided. Training

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e should include conducting a simulation of the event on a simulator that has d'

been updated as necessary using the Westinghouse and TVA test data collected at Sequoyah.

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Test 9B must be performed. However, it may be modified and deferred until completion of the power ascension program and manufacturer's acceptance test, y

6 provided that it is performed immediately following completion of the manufacturer's acceptance test. Chapter 14 of your FSAR should be modified y

as appropriate to reflect this condition if you elect deferral.

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I Mr. ' T. ~ C. Nichols, Jr.

-2 00T 2 a m The only other exceptions to the Sequoyah test program that will be considered will be those resulting from unique, plant specific differences that could cause.one or more of the tests performed at Sequoyah to be unsafe if performed on another plant. Technical justification for such exceptions, if any, should be provided no later than October 31, 1980, to the NRC staff for review and approval.

Sincerely,

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Robert L. Tedesco Assistant Director for Licensing Division of ' Licensing cc: Mr. William A. Williams, Jr.

Vice President-South Carolina Public Service Authority 223 North Live Oak Drive-Moncks Corner, South Carolina 29461 J. B. Knotts, Jr., Esq.

Debevoise & Liberman 1200'17th Street, N. W.

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Washington, D. C.

20036 Mr. Mark B. Whitaker, Jr.

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Group Manager - Nuclear Engineering & Licensing South Carolina Electric & Gas Company

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P. O. Box 764-Columbia, South Carolina 29218

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Mr. Brett Allen Bursey f

Route 1, Box 93C

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6 Little Mountain, South Carolina 29076 Resident Inspector / Summer NPS c/o U. S. NRC

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Jenkinsville, South Carolina 29065 t

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