ML20009F318
| ML20009F318 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 01/18/1978 |
| From: | NEBRASKA PUBLIC POWER DISTRICT |
| To: | Goller K Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20009F317 | List: |
| References | |
| NUDOCS 8107300287 | |
| Download: ML20009F318 (4) | |
Text
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o- GENERAL OFFICE P. O. box 499, COLUMBUS, NEDR ASKA 68601
.n Nebraska Publ.ic Power Distric
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! January 18, 1978
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Director, Nuclear Rcactor Regulation 77 Attention: Karl R. Coller ,w d 'f - ,V Assistant Director of Operating Reactors
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Division of Operating Reactors p %. IS/ U. S. Nuclear Regulatory Cornission 19 %f,g % g -- , Washington, D. C. 20555 5'
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Subject:
Standby Diesel Generator Study -
Reference:
Letter, Karl R. Coller to All Power Reactor Licensees, dated December 15, 1977.
Dear Mr. Goller:
This letter is in response to the referenced letter which transmitted a questionnaire pertaining a reliability study of Standby Diesel Generator Units. It was requested that the questionnaire ba completed and one copy returned to your office by January 20, 1978. We have completed the question-naire and are submitting one copy, for your review and use, as an enclosure to this letter. Additionally, it was requested that we identify the individual responsible for completing the questionnaire, follow-up communications, or for arranging a reactor site visit. This individual is: Mr. L. C. Lessor Station Superintendent Cooper Nuclear Station P. O. Box 98 Brownville, Nebraska 68321 Phone (402) 825-3811 i i f0t d 8107300287 810720 I PDR ADOCK 05003298 0260o 3% F PDR i
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S. Are any foreign gases such as propane, freon, halon, carbon ' pr_. dioxide, etc. stored in the: Diesel Engine room? ' or adjacent buildings? Yes No X s Yes x No . i d,f.
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If yes, (other than hand portable fire extinguishers), then Pp identify gases and give approximate tank size. y 76 75 lb. bottles ; Gases Carbon Dioxide Volume ti sw T. Does control system automatically bypass, in emergency starting, 2ny engine temporarily out of service for No X maintenance? Yes ' If yes, then hod many failures to bypass have occured? U. Does the control system automatically override the test mode under emergency conditions? Yes x No V. Have repetitive mechanical failures occurred in any component part or subsystem of the engine, generator, or switch gear, etc.? Yes X No If yes, then which part or subsystem? copoer tubing How many failures? Three Tubing develooed leaks, was reolaced Give nature of failure. with stainless steel and no leaks have occurred since. Would periodic (yearly or other) evaluation and/or testing U. f33
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