ML20205S062

Forwards Safety Evaluation Accepting Util 831104 Response to Generic Ltr 83-28,Item 4.5.2, Reactor Trip Sys Reliability On-Line Testing. Use of Four Independent Contactors Rather than Reactor Trip Breakers Can Be Tested at Power

ML20205S062
Person / Time
Site:	Fort Saint Vrain
Issue date:	03/31/1987
From:	Heitner K Office of Nuclear Reactor Regulation
To:	Robert Williams PUBLIC SERVICE CO. OF COLORADO
Shared Package
ML20205S067	List: ML20205S062 ML20205S114
References
GL-83-28, TAC-53984, NUDOCS 8704060513
Download: ML20205S062 (3)

Text

e March 31, 1987 Docket No. 50-267 l

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Mr. R. O. Williams, Jr. l Vice President, Nuclear Operations  !

Public Service Company of Colorado P. O. Box 840 Denver, Colorado 80201-0840

SUBJECT:

REACTOR , TRIP SYSTEM RELIABILITY ON-LINE TESTING, GENERIC LETTER 83-28 We have completed our review of your submittal dated November 4, 1983, concerning Item 4.5.2 of Generic ~ Letter 83-28 relating to the reliability of the on-line testing of the reactor trip system. The staff concludes that the design of the Fort St. Vrain reactor trip system,which uses four independent i contactors rather than reactor trip breakers,can be tested at power (when the facility receives authorization for operation) and, therefore, meets the requirements of Generic Letter 83-28. The staff's Safety Evaluation is enclosed.

Sincerely, original signed by Kenneth L. Heitner, Project Manager Standardization and Special-0704060513 870331 Projects Directorate DR ADOCK0500g7 D W u M P W W M g -B Office of Nuclear Reactor Regulation

Enclosure:

As stated cc w/ enclosure:

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%,,,,+ March 31, 1987 Docket No. 50-267 Mr. R. O. Williams, Jr.

Vice President, Nuclear Operations Public Service Company of Colorado P. O. Box 840 Denver, Colorado 80201-0840

SUBJECT:

REACTOR TRIP SYSTEM RELIABILITY ON-LINE TESTING, GENERIC LETTER 83-28 We have completed our review of your submittal dated November 4, 1983, concerning Item 4.5.2 of Generic Letter 83-28 relating to the reliability of the on-line testing of the reactor trip system. The staff concludes that the design of the Fort St. Vrain reactor trip system.which uses four independent contactors rather than reactor trip breakers,can be tested at power (when  ;

the facility receives authorization for operation) and, therefore, meets the requirements of Generic Letter 83-28. The staff's Safety Evaluation is enclosed.

Sincerely.

Y Kenneth L. Heitner, Project Manager Standardization and Special Projects Directorate Division of PWR Licensing-B Office of Nuclear Reactor Regulation

Enclosure:

As stated cc w/ enclosure:

See next page

C-Mr. R. O. Williams Public Service Company of Colorado Fort St. Vrain cc:

Mr. D. W. Warembourg, Manager Albert il. Hazle, Director Nuclear Engineering Division Radiation Control Division Public Service Company Department of Health of Colorado 4210 East lith Avenue P. O. Box 840 Denver, Colorado 80220 Denver, Colorado 80201 Mr. David Alberstein,14/159A Mr. R. O. Williams, Acting Manager GA Technologies, Inc. Nuclear Production Division Post Office Box 85608 Public Service Company of Colorado San Diego, California 92138 16805 Weld County Road 19-1/2 Platteville, Colorado 80651 Mr. H. L. Brey, Manager Nuclear Licensing and Fuel Division Mr. P. F. Tomlinson, Manager Public Service Company of Colorado Quality Assurance Division P. O. Box 840 Public Service Company of Colorado Denver, Colorado 80201 16805 Weld County Road 19-1/2 Platteville, Colorado 80651 Senior Resident Inspector U.S. Nuclear Regulatory Commission Mr. R. F. Walker P. 0. Box 840 Public Service Company of Colorado Platteville, Colorado 80651 Post Office Box 840 Denver, Colorado 80201-0840 Kelley, Stansfield & 0'Donnell Public Service Company Building Comitment Control Program Room 900 Coordinator 550 15th Street Public Service Company of Colorado Denver, Colorado 80202 2420 W. 26th Ave. Suite 100-D  !

Denver, Colorado 80211 ,

Regional Administrator, Region IV I U.S. Nuclear Regulatory Commission l 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 s Chainnan, Board of County Comissioners of Weld County, Colorado Greeley, Colorado 80631 Regional Representative Radiation Programs Environmental Protection Agency 1 Denver Place 999 18th Street, Suite 1300 Denver, Colorado 80202-2413