ML19241B095

Requests Schedule for Submittal of Addl Justification to Demonstrate That Barton Pressure & Differential Transmitters Will Meet Performance Requirements During Hypothesized Cooling Period

ML19241B095
Person / Time
Site:	North Anna
Issue date:	06/01/1979
From:	Parr O Office of Nuclear Reactor Regulation
To:	Proffitt W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
References
NUDOCS 7907110679
Download: ML19241B095 (3)

Text

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UNITED STATES 9

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NUCLEAR REGULATORY COMMISSION

'l WASHINGTON, D. C. 20555 s%

Docket

• N. 50-338 J W 0 1 1979 Mr. W. L. Proffitt Senior Vice President - Power Operations Virginia Electric & Power Company P. O. Box 26666 Richmond, Virginia 23261

SUBJECT:

REGUEST FOR ADDITIONAL INFORMATION - I.iSTRUMENTATION QUAL!FICATION (NORTH ANNA POWER STATION, UNIT NO.1)

We have completed our review of i m Westinghouse Electric Corporation's report entitled, " Qualification Testing cf Barton Pressure and Differential Pressure Transmitters" (Proprietary) wilich addresses the Barton transmitters used in your application and find that additional information is required.

The results of the qualification tests, as delineated in the above cited report, show that tbc Barton transmitters, with the exception of the Barton 763 narrow range p.c Sure transmitter, met specifications for the nitiation of the p.otection system actions.

However, they did not meet specified accuracies for manual control during post-accident cooling. Therefore, we require that you specify the schedule for cubmittal of additional justificati.

to demcnstrate that these transmitters will meet all of their performance requirements including functions needed during a hypothesized post-accident couling period.

In the interim we require that you describe (1) the alternate qualified instrtrents and procedures for manually controlling reactor conditions during long-term post-accident cooling, and (2) the bases for acceptability of the reasured error in the Barton 763 narrow range pressure transaitter for initiating short term protection system actions. Moreover, if the calculated containment environment temperatures exceed those values specified for sequential tests, we require that you show that the protective enclosures around transmitters would prevent transmitter temperatures from exceeding values measured in the tests.

Please provide a schedule within 7 days for the submittal of this informaticr..

Sincerely, O

r, ef Light Water Reactors Branch No. 3 Division of Project Management cc:

See next page 7907110679 n

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'Mr. W. L Proffitt cc:

Mrs. James C. Arnold John J. Runzer, Esq.

P. O. Box 3951 Pepper, Hamilton ?. Scheetz Charlottesville, Virginia 22903 123 South Broad St reet Philadelpnia, Pennsyl. ara! 101M Mr. Anthony Gambaradella Of fice of the Attorney General Cla rence T. Kipps, Jr., Esq.

11 South 12th Street - Room 308 1700 Pennsylvania Avenue,. ti.W.

Fichmond, Vi rginia 23219 Washington, D. C.

2CC06 Carroll J. Savage, Fsq.

Richard M. Foster, Esq.

1700 Pennsylvania Avenue, N. W.

211 Stribling Avenue Washington, D. C.

20006 Charlottesville, Virginia 22903 Mr. James C. Dunstan Michael W. Maupin, Esq.

State Corporation Comission HJnton, Williams, Gay & Gibson Commonwealth of Virginia P. O. Box 1535 Blandon Building Ri chmond, Vi rginia 23212 Richmond, Virginia 23209 Mrs. June Allen 412 Owens Drive Huntsville, Alabama 35801 Mr. James Torsor.

. Alan S. Rosenthal, Esq.

501 Leroy Atomic Safety and Licensing

.Socorro, New Mexico 87801 Appeal Board U.S. Nuclear Regulatory Conmission Mrs. Margaret Dietrich Washington, D. C.

20555 Route 2, Box 568 Gordonsville, Virginia 22942 Michael C. Farrar, Esq.

Atomic Safety and Licensing William H. Rodgers, Jr., Esq.

Appeal Board Georgetown University Law Center U.S. Nuclear Regulatory Commission 600 New Jersey Avenue, N.W.

Washington, D. C.

20555 Washington, D. C.

20001 Dr. John H. Buck Mr. Peter S. Hepp Atomic Safety and Licensing Executive Vice President Appeal Board Sun Shipping & P y Dock Company U.S. f uclear Regulatory Comission P. O. Box 540 Washington, D. C.

20555 Chester, Pennsylvania 19013 Mr. R. B. Briggs Atomic Safety and Licensina Associate Director Board Panel 110 Evans Lane U.S. Nuclear Regulatory Commission Oak Ridge, Tennessee 37820 Washingten, D. C.

20555

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Mr. W. L. ?roffitt dlh 01 1979 cc:

Mr. Michael S. Kidd U. S. Nuclear Fegulatory Commission P. O. Box 128 Spotsivcria, Virginia 22553 Cr. Pa ul W. Purdom Department of Civil Engineering Drexel University Philadelphia, Pennsylvania 19104 Dr. Lawrence R. Quarles Apartment fio. 51 Kenda l-a t-Long wood Kennett Square, Pennsylvania 19348 Pr. Irwin B. Kroot Citizens Energy Forum P. O. Box 138 McLean, Vi rginia 22101 James B. Dougherty, Esq.

Potomac Alliance P. O. Box 9306 Washincton, D.C.

20005

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