ML20212B164
| ML20212B164 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 02/25/1987 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20212B146 | List: |
| References | |
| GL-84-15, NUDOCS 8703030486 | |
| Download: ML20212B164 (2) | |
Text
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACT 0P REGULATION SUPPORTING AMEN 0 MENT N0. 96 TO FACILITY OPERATING LICENSE NO. DPR-72 FLORIDA POWER CORPORATION, ET AL.
CRYSTAL RIVER UNIT N0. 3 NUCLEAR GENERATING PLANT DOCKET N0. 50-302 INTRODUCTION By letter dated October ' 8,1985, as supplemented October 15, 1986 and 2
November 4,1986, Florida Power Corporation (FPC or the licensee) requested amendment to the Technical Specifications (TSs) appended to Facility Operating License No. DPR-72 for the Crystal River Unit No. 3 Nuclear Generating Plant (CR-3). The proposed amendment would reduce the frequency of diesel generator fast starts from ambient conditions as recomended by Generic letter (GL) 84-15. On October 15, 1986, the licensee incorrectly clarified this request to require non-prelubed starts every 184 days. This was corrected by the November 4, 1986, submittal to indicate that the 184-day test may be performed with prelubing.
EVALUATION The licensee's requested chances to the TSs involve the diesel generator surveillance requirements 4.8.1.1.F.a and the " Bases" for Section 3/4.8,
" Electrical Power Systems" of the CR-3 TSs.
For the diesel oenerator surveillance reauirements, the licensee has proposed that diesel generator " fast starts" (start and accelerate to synchronous speed in 10 seconds or less) be limited to once every 184 days and that all other starts for the purpose of this surveillance (4.8.1.1.F.a) be preceded by an engine prelube and/or other warmup procedures as recomended by the diesel generator vendor. The licensee's proposed TS change modifies Section 4.8.1.1.2.a.4 to delete the requirement to reach 900 RPM or greater in 10 seconds or less and adds a new Section (4.8.1.1.2.c) which includes the requirement to conduct a " fast start" once per 184 days.
The licensee has also proposed two revisions to the " Bases" Section of the TSs. Ambient condition is defined as that in which diesel generator engine coolant and lube oil are being continuously circulated and maintained at a temperature recomended by the diesel generator vendor.
The second change to the Bases is the addition of a description of how the diesel generators will be loaded during surveillance testing.
For all surveillance tests, the licensee proposes to apply load and to unload the diesel generators in a manner recomended by the diesel cenerator vendor.
In general, this means that loading of the diesel generators will take place over an extended period of time, in accordance with vendor recomendations.
The single exception to the above loadino scenerio is the 18-month surveillance test to demonstrate capability of the diesel cenerators to automatically start and pick up safety loads on a loss of off-site power.
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We have reviewed the licensee's proposed changes to the surveillance requirements of TSs 4.8.1.1.2.a and 4.P.1.1.?.c and find the changes consistent with current NRC recommendations regarding cold fast starts.
Also the changes in the Bases for Section 3/4.8 include a definition of
" ambient enndition" and a methodology for diesel generatnr loading, both deemed consistent with the NRC's position on reducing thermal stresses on diesel generators. Therefore, we #ind these changes acceptable.
El;VIRONMENTtt CONSIDERATION This amendment involves a change in surveillar.ce requirements. We have determined that the amendnent involves no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposure. The Comnission has previously issued a proposed finding that this arendment involves no sionificant hazards consideration and there has been no public comment on such findire.
Accordingly, this amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFP 51.??(c)(91 Pursuant to 10 CFR 51.??(b), n'o environmental impact statement or environnental assessment need be prepared in connection with the issuance of this amendment.
CONCLUSION We have concluded, based on the considerations discussed above, that:
(1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (2) such activities will be conducted in corpliance with the Commission's regulations and the issuarce of this amendment will not be inimical to the common defense and security nr to the health and safety of the public.
Cated: February 25, 1987 Principal Contributor:
F. Tomlinson
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