L-75-380, Submittal of Request to Amend Appendix a of the Facility Operating Licenses
| ML18227D865 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 07/29/1975 |
| From: | Robert E. Uhrig Florida Power & Light Co |
| To: | Anthony Giambusso Office of Nuclear Reactor Regulation |
| References | |
| L-75-380 | |
| Download: ML18227D865 (7) | |
Text
s NRC DISTRIBUTION FOR PART 60 DOCKET MATERIAL (TEMPORARY FORM)
CONTROL No 8244 FILE'ROM.
Florida Power
& Light Co Iiami, Fla.
33101
'E TO:
Mr. A. Giambusso DATE OF DOC 9-29-75 ORIG
~ 3 signed CC OTHER 40 SENTNRC PDR SENT LOCALPDR DATE REC'D LTR TWX RPT
'8-4-75 OTHER XX CLASS UNCLASS PROPINFO INPUT NO CYS REC'D 43 DOCKET NO:
50-25 5
DESCRIPTION:
Ltr notarized 7-30-75 requesti.n for amdt to App.
A of OL/DPR-31 & DPR-41 concern the definition of the parameter "P" used in the Thch Specs to determine the limiti.ng values of t hot channel factors
& trans the following:
,ENCLOSURES:
Revised Tech Spec Change pages
'ng 3.2-3
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Ding FLORIDA POWER 5 LIGHT COMPANY July 29,- 1975 L-75-380 Mr. Angelo Giambusso, Director Division of Reactor Licensing Office of Nuclear Reactor Regulation U.
S. Nuclear Regulatory Commission Washington, D.
C.
20555
Dear Mr. Giambusso:
',JI j f~zg ciSpg "
627 b~
and 4
Re:
Turkey Point Plant Unit N Docket Nos.
50-250 and
-251 Proposed Amendment to Face. sty
~
0 era'tin L'ic'en'se's'PR-'31 an'd DPR-41 In accordance with 10 CFR 50.30, Florida Power 6 Light Company submits herewith three (3) signed originals and forty (40) con-formed copies of a request to amend Appendix A of the Facility Operating Licenses DPR-31 and DPR-41.
An ECCS analysis was submitted by Florida Power
& Light Company to the Regulatory Staff on March 10, 1975.
, It considered a
loss-of-coolant accident under worst break conditions whi;le operating the plant at the de'si 'now'er of 2300 MWt with a peaking factor of 2.32.
- However, as escribed by Unusual Event Report No.
251-75-1 of July 7,
- 1975, the analysis used fuel pellet data which was not applicable to Turkey Point Unit No.
4 and resulted in an incorrect calculated
~alue for peak clad temperature.
As a result, a revised analysis has been performed to determine the peak clad temperature fo-Unit No. 4, Cycle 2, under worst break conditions while operating the plant at the rated ow'er of 2200 Mlit with a peaking factor of 2.32.
An appen z.x to this letter contains the results of thi.s analysis.
For the tnree break sizes
- analyzed, the highest clad temperature was 2158 F, well below the 2200 F FAC limit.
Also, further analysis has shown that after a Cycle 2 exposure of 5000
- EFPH, there will be a sufficient reduction of fuel stored energy such that the original ECCS analysis will again be applicable to Unit No. 4, To reflect the results of these
- analyses, we propose to change the definition of the parameter "P", used in the Technical Specifications to determine the limiting values of the hot channel factors, from fraction of design power to'raction of rated power.
A revision of the corresponding Basis is also proposed.
HELPING BUILD FLORIDA
Mr. Nigelo Giambusso July 29, 1975 The proposed changes are set forth in the attached revised Technical Specification pages bearing the date of thi's letter in the lower right-hand corner'nd as described
- below, Pa e
3'. 2-3 In subsection 6.a, change the'ord "design" to "rated".
~3; 2'-4 Add the following sentence to the end of the first paragraph:
"An exception is the period from 0 to 5000 EFPH of the second cycle for Unit No. 4, when, due 'to fuel pellet characteristics distinct for this cycle, a peak 'clad temperature of 2158 F is calculated at rated power."
This proposed change to the Technical Specifications represents an increase in conservatism; the'r'efore, we believe that it requires no significant hazards consideration nor does it require prenoticing pursuant to 10 CFR 50,91
'ery truly yours, Robert E. Uhr'ig Vice President REU:MAS:nch attachment cc:
Mr, Norman C. Moseley Jack R, Newman, Fsquire
4 pie 4
%s
STATE OF FLORIDA
)
)
ss COUNTY OF DADE
)
ROBERT E.
UHRZG, being first duly sworn, deposes and says:
That he is a Vice President of Florida Power S Light Company, the Licensee herein; That he has executed the foregoing instrument, that the statements made in this said instrument are true and correct to the best of his knowledge, information and belief; and that he is authorized to execute the instrument of said Licensee.
Robert E. Uhrig Subscribed and sworn to before me this 0
day of 1975 Notary Pubis.c z.n and for the State of Florida at Large tIVjARy P3' IC SIA of rLOPIDAoI LARG My COMMISSIOII EXPIRES APRIL 2 ission expires
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