ML20039C213
| ML20039C213 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 12/18/1981 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Linder F DAIRYLAND POWER COOPERATIVE |
| References | |
| TASK-08-02, TASK-8-2, TASK-RR LSO5-81-12-069, LSO5-81-12-69, NUDOCS 8112290064 | |
| Download: ML20039C213 (4) | |
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December 18, 1981 i
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Mr. Frank' i.inder M [c9(g% /J{/
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Dairyland Power Cooperative
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Lacrosse, Sisconsin 54601 o
Dear fir. Linder:
SUBJECT:
SEP TOPIC VIII-2, ONSITE EttERGENCY PWER SYSTEMS - DIESEL GENERATORS' SAFETY EVALUATION REPORT FOR LA CROSSE-
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The enclosed staff safety evaluation is based on contractor documents that have been made aVailable to you previously. This evaluation is the staff's position regarding design of your facility in the subject area. With regard to the eeferenced topic, the staff has concluded your facility meets current licensing criteria.
Sincerely,
'4 Dennis M. Crutchfield, Chief Operating Reactors Branch No. 5 Division of Licensing Encloosre:
$ @5 As stated cc w/ enclosure:
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LA CROSSE Docket No. 50-409 o
Mr. Frank Linder cc Fritz Schubert, Esquire U. S. Environmental Protection Staff Attorney Agency Dairyland Power Cooperative Federal Activities Branch 2615 East Avenue South Region V Office ATTN: Regional Radiation Representative La Crosse, Wisconsin 54601
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230 South Dearborn Street O. S. Heistand, Jr., Esquire Chicago, Illinois 60604 Morgan, Lewis & Bockius 1800 M Street, N. W.
Mr. John H. Buck Washington, D. C.
20036 Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulatory Comission Mr. R. E. Shimshak Washington, D. C.
20555 La Crosse Boiling Vater Reactor Dairyland Pcwer Cooperative Dr. Lawrence R. Quarles P. O. Box 135 Kendal at Longwood, Apt. 51 Genoa, Wisconsin 54632 Kenneth Squa e. Penr.sylvania 19348 Charles Bechhoefer, Esq., Chairman Ms. Anne K. Morse Coulee Region Energy Coalition Atomic Safety and Licensing Board P. O. Box 1583 J. S. Nuclear Regulatory Comission La Crosse, Wisconsin 54601 Washington, D. C.
20555 La Crosse Public Library Dr. George C. Anderson 800 Main Street.
Department of Oceanography La Crosse, Wisconsin 54601 University of Washington Seattle, Washington 98195 U. S. Nuclear Regulatory Comission Resident Inspectors Office Mr. Ralph S. Decker Rural Route #1, Box 276 Route 4, Box 190D t
Genoa, Wisconsin 54632 Cambridge, Maryland 21613 Town Chairman Thomas S. Moore Town of Genoa Atomic Safety and Licensing Appeal Board Route 1 U. S. Nuclear Regulatory Comission Genoa, Wisconsin 54632 Washington, D. C.
20555 Chairman, Public Service Comission Mr. George R. Nygaard Coulee Region Energy Coalition of Wisconsin Hill Farms State Office Building 2307 East Avenue Madison, Wisconsin 53702 Lacrosse, Wisconsin 54601
)ll, Alan S. Rosenthal, Esq., Chairman Atomic Safety and Licensing Appeal Board l'
U. S. Nuclear Regulatory Comission Washington, D. C.
20555 I
i Mr. Frederick Milton Olsen, III
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609 North lith Street l
Lacrosse, Wisconsin 54601
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SYSTERATIC EVAt.UATION PROGRA.'i 10Plc vill-2 LA CROSSE TOPIC VIII-2 ONSITE EMERGENCY POWER SYSTEMS - DIESEL GENERATOR I.
Introduction Diesel generators, which provide emergency standby peser for safe reacter shutdown in the event of total less of offsite power, have experienced a significant ng:ber of failures.
The failures to date hase been attributed to a variety cf causes, in:luding failure of the air startup, fuel cil',
and :tbustion air systems.
In scre instantes, the nalfuncticns were due
- c ic:keu. The informaticn available to tne control reca cperator to indicate the cperational status of the diesel generator was icprecise and
- uld lead to misinterpre:ation.
This was caused by the sharing of a..
single annuncia::r station by alares :nat indicate.:enditien~s that render a diesel generator unable to resp:nd to an automatic emergency start single and alar:s ina: Only indicate a warning of abnertal, but no disabl-ing, c:ndittens.
An ther cause was the wording en an annun:iater wind:-
which did not s:ecifically say tha: the diesel generater was in perable (i.e., unable at the tima to rescend to an au : atic emergency start signai) wnen in fa:: it was in:pera::e for :na pur;:se. The review included ne reliability, prote::ive interlocks, fuel cil cuality, and testing Of diesel genera:crs to assure :nat :ne :iesei generato-see:s :ne avaiia:ility re-cuirements for pr vicing eter;ency stand:y ;;*er :: the en;ineered safety features.
II.
Review Criteria The review criteria are presented for Se::icn S.3.1 in Table 5-1 of the Standard Review Plan.
III. Related Safe:v Tecies and Interfaces The se:pe of review for this t:pic was limited to avoid duplication of effer: since some aspects of the review were performed under related t: pics.
Related topics and the subject matter are identified below.
Each cf the related : pic reports contain the acceptance criteria and review guidance for its subje:t matter.
III-12 Environrental Qualification VI-7.C.1 Incependen:e of Onsite Power VIII-1.A Degraced Grid XVII Fuel Oil Quality Assurance There are no safety topics that are dependent in the present Opic informa-tion for their ccepletion.
2-IV. Review Guidelines The review guidelines are presented in Section 8.3.1 of the Standard Review Plan.
V.
Evaluation The concern with regard to annunciators was pursued as a generic issue.
The staff safety evaluation for Lacrosse concluded that in order to pro-vide the operator with accurate, complete and timely information per-tinent to the status of the diesel generators, as required by IEEE Std.
i 279-1971, the following corrective actions are required:
1.
P ovide information concerning possible nonalarmed conditions which might render the D/G's incapable of autoaatic start.
i 2.
Licensee was requested by NRC letter dated April 4,1978 to deter-
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mine if the D/G's are provided with a manual shutdown lockout relay.
By a letter dated July 22,1977, 'the licensee agreed to make suitable modifications to the arinunciators. There are no manual shutdown lock-4
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out relays.
51so, cs a result of the work done by the Unisersity of Dayton, a gen-eric program for implementing most of the recommencations for reliabil-ity enhancement that are contained in the University of Dayton report is being conducted by NRC. This latter program will also determine the adequacy of the diesel generator testing program on a case-by-case basis and enforce any necessary changes.
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The question of fuel oil quality was addressed on a generic basis in January 1980, by letters to all licensees. The letters required that l
licensees include fuel oil in their Quality Assurance program. The Quality Assurance program is addressed in Topic XVII. Until completion of Tcpic XVII, the periodic testing of the diesels is considered to be an adequate interim method for assuring acceptable quality in the fuel oil stored on site.
Beyond these efforts, EG&G Report 0701F, " Diesel Generators" presents a l
technical evaluation of the diesel generator protective interlocks and load capability at Lacrosse against present licensing criteria. The re-port notes that the diesel-generator protectiye trips are in agreenent with current NRC guidelines.
l VI. Conclusion The diesel generator protective interlocks are in conformance with the Branch Technical Position ICSB-17 (PSB).
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