ML19241B084

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

ML19241B084
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 7907110667
Download: ML19241B084 (3)

Text

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[ga arcg*o, UNITED STATES

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DucYeli,0. 50-339 JUN 011979 Pr. W. L. Proffitt Senior Vice President Power Ooeratiars Virginia Electric & Power Company P. O. Box 26666 Richmond, Virginia 23261

SUBJECT:

REQUEST FOR ADDITl%?,c INFORMATION - INSTRUMENTATION QUALIFICATION (NORTH ANNA POWEP S, ATION, UNIT NO. 2)

We have completed our re,it.w of the Westinghouse Electric Corporation's report entitled, " Qualification Testing of Barten Pressure and Differential Pressure Transmitters" (Proprietary) which addrasses 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, now that the Barton transmitter, with the exception of the Ba-ton 763 narrow range pressure transmitter, met specifications for the initiation of the protecticr.

system actions. However, they did not meet specifieo accuracies for manual control during post-accident cooling. Therefore, we require that you specify the schedule for submittal of additional justification to demorstrate that these transmitters will meet all of their performance requirements including functions needed during a hypothesized post-accident cooling period.

In the interim we require that you describe prior to licensing (1) the alternate qualified instruments and procedures for manually controlling reactor conditions during long-term post-accident cooling, and (2) the bases for acceptability of t'ie measured error in the Barton 763 carrow range pressure transmitter 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 14 days for the submittal of this infcrmation.

Sincerely,

. Pa'rr ief Light Water Reactors Branch tb. 3 Division of Project Management cc: See next page 7 9 0 7110 6 Col sn-o r'

Mr. W. L. Prof fitt 2_

JUN 011979 cc:

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

P. O. Box 3951 Pepper, Hamilton & Scheetz Charlottesville, Vi rginia 22903 123 South Broad St reet Philadelphia, Pennsyl.ar : ';1C9

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' Fr. Anthony Gambaradella Office of the Attorney General Cl a rence T. Ki pps, Jr, ! sq.

11 South 12th Street - Room 308 1700 Pennsyl vani c Avenue,. fl.W.

Richmond, Virginia 23219 Washington, D. C.

20C06 Carroll J. Savage, Esq.

Richard M. Foster, Esq.

1700 Pennsylvania Avenue,.*;. W.

211 Stribling Avenue Washington, D. C.

20006 Charlottesville, Virginia 22903 1.

Mr. James C. Dunstan

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Michael W. Maupin, Esq.

State Corporation Cocmission Hunton, Williams, Gay & Gibson Cocmonwealth of Vi rginia P. O. Box 1535 Blandon Building Richmond, Vi rginia 23212 Richmond, Vi rginia 23209 Mrs. June Allen 412 Owens Drive Huntsville, Alabama 35801

,p Mr. James Torson Alan S. Rosenthal, Esq.

f 501 Leroy Atomic Safety and Licensing g

Socorro, New Mexico 87801 Appeal Board U.S. Nuclear Regulatory Commission 3

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 Commissicn 600 New Jersey Avenue, N.W.

Washington, D. C.

20555 i

Washington, D. C.

20001 Dr. John H. Buck

$/-

Mr. Peter S. Hepp Atcmic Safety and Licensing W

Executive Vice President Appeal Board

%F Sun Shipping & Dry Dock Company U.S. Nuclear Regulatory Cocmission P. O. Box 540 Washingt]n, D. C.

20555 tA Chester, Pennsylvania 19013 Pc ev Mr. R. B. Briggs Atomic Sa fety and Licensing k.

Associate Director Board Panel b

110 Evans Lane U.S. Nuclear Regulatory Commission

?c Oak Ridge, Tennenee 37830 Washington, D. C.

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Mr. W. L. Proffitt 3-JUN 0 t 1979 cc:

Mr. Michael S. Kidd U. S. helear Regulatory Cocnission P. O. Box 128 i

Spotslvania, Virginia 22553 4

Dr. Paul W. Purdom Department of Civil Engineering Drexel University Philadelphia, Pennsylvania 19104 Dr. Lawrence R. Quarles r

Apartment No. 51 Kenda l-a t-Longwood Kennett Square, Pennsyl vania 19348 Mr. Irwin B. Kroot Citizens Energy Foium P. O. Box 138 McLean, Virginia 22101

,v James B. Dougherty, Esq.

y Potomac Alliance

?. O. Cox 9306

- Washington, D.C.

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