ML18227B706
| ML18227B706 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 02/01/1977 |
| From: | Robert E. Uhrig Florida Power & Light Co |
| To: | Moseley N NRC/RGN-II |
| References | |
| L-77-36 | |
| Download: ML18227B706 (18) | |
Text
P. O. BOX 013100. MIAMI, FL 33101 Qt ii~,
Y FLORIDA POWER & LIGHT COMPANY February 1, 1977 L-77-36 Norman C. Moseley, Director Office of Inspection & Enforcement, Region II U. S. Nuclear Regulatory Commission 230 Peachtree Street, N. W., Suite 818 Atlanta, Georgia 30303
Dear Mr.'oseley:
Re: IE: II: AKH 50-250/76-1 50-251/76-1 This letter is submitted in accordance with the commitments made in my letter dated March 29, 1976. The st'atus of the Turkey Point Drawings Program is as follows:
- l. As of January 31, 1977, a forty-five (845) drawings total of eight hundred have been updated as
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built in the field.
- 2. Of these, six hundred & forty-two (642) have re-ceived final approval and released to the field; eighty-six (86) in the final approval cycle; and one hundred & seventeen (117) are undergoing drafting and final, review for adequacy.
During this period, nineteen (19) new drawings were gen-erated by Engineering and released to the field, and eighty-six (86) are in the final approval cycle.
Very truly yours, Robert. E. Uhrig Vice President REU/NFA/hlc cc: Robert Lowenstein, Esq.
PEOPLE... SERVING PEOPLE
NRC FoRM 195 (2 76) RC>>- I U.S. NUCLEAR REGULATORY Co" >>"EMISSION.
NRC DISTRIBUTION FoR PART 60 DOCKE I 1VIATE Rl AL Florida Power & Light FILE NUMBER DATE OF DJCVhdfflT J uzi Mr Lear Co Miami, Fla "
R E Uhrig 1"28-77 g1.ETTE R .0 NOTOR IZ E D PROP INPUT FORM NUMBERNF COPIES RECEIVED gfoRIGINAL I
%UNCLASSIFIED Dcop'Y one,sI ironed DES C 0 IP T ION ENCLOSURE Ltr re our NRC request....t;rans the Addi info re steam 'Generator'tube Integrity following: ..(40 cys e'ncl rec'd) lp 6p . ~
PLANT NAMF: Turkey Point jj3 & 4
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SAFETY FOR ACTION/INFORMATION ASSXGNED AD:
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PRO EC~TNAEA EEj /0 PROJECT MANAGER'IC LXC ASST ASST INTERNAL D IST RI BUTION
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t P. O. BOX 013100, MIAMI, FL 33101 Q~l leer Ieguiatory Docket. FI<A FLORIDA POWER & LIGHT COMPANY January 21, 1977 L-77-30 Director of Nuclear Reactor Regulation Attention: Mr. George Lear, Chief (g Ip Operating Reactors Branch 53 Division of Operating Reactors U. S. Nuclear Regulatory Commission Washington, D. C. 20555
Dear Mr. Lear:
Re< Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 Steam Generator Tube Xntegrity Su olemental'n'f oxma't'io'n'he attached information is submitted in response to a request. from your staff. Xt supplements previous information submitted in our letters L-76-432, L-76-434, and L-77-3.
Very truly yours, Robert E. Uhrig Vice President REU/MAS/ms Attachment cc: Norman C. Moseley, Region IX Robert Lowenstein, Esquire oocxaco 01 I/a g/
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'I CORI Nol RI'EOPLE...
SERVING PEOPLE
F ATTACHMENT'urkey Point Units 3 and 4 Request for Information Steam Generator Tube Int'e rit Q13. Provide a tabulation summary of the total strains in the circumferential, longitudinal and radial direction at the U-bend apex for tubes at flow slot locations in rows 1 to 4. The summary should. indicate the effects due to manufacturing, service induced. ovality (hourglassing),
change in U-bend radius, operating thermal and pressure loads and accident loads. Also compute the effective strains at the U-bend apex.
Clarification of above question.
- a. Provide the requested tabulation for a total of 32 tubes (eight tubes adjacent to the flow slot in rows 1 through 4.)
- b. For the tubes in row 1 provide the requested tabulation for the following two cases.
(1) Flow slot hourglassing based on current field data for the top support plate in Steam Gener-ator 4B (2) Assuming full closure of the flow slot
- c. For those tubes in rows 2, 3 and 4 provide the requested tabulation assuming full closure of the flow slot.
indicated in our response to Question li the operating thermal.
'13.
As and pressure strains are trivial,and can, be neglected.
Similarly, the strains due to =SSE and other accident loads are. quite small and are effectively zero when compared to those due to hourglassing. Our table will onlv include manu-facturing and in-service (hourglassing)'. strains and a summation, for, each quantity requested. The summation is inclusive of operating and accident conditions.
j TABLE 1 ROLU 1 8 CURRENT HOURGLASSING (UNIT 4) 6 axial =hoo radial e u.
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Mfg. .040
.177 .004 . 133 Column H .014 .008 .004 . 141 T .191 .012 .044 H .013 .009 .004 86 .044 ., 140 T .190 .013 H .012 .009 .004 . 140 87 .044 T .189 .013 H .010 .008 .003 88 .043 . 138 T .187 .012 H .007 .004 .002 89 .042 . 137 T . 184 .008
.004 .003 .001 90 .041 . 134
.121 .007 H
- T .177 .133 H -133 92 .004 .040 T .177
- No Leg Displacement H Strains due to hourglassing T Total Strains
s TABLE 2 ROW 1 9 FULL CLOSURE Mfg.
Column I . 177 .004 -.040 H .044 .043 .014 85 T .221 .047 .054 H .043 . 043 .014 86 T .220 .047 -.054 87 H .038 .039 -.012 T .215 .043 .052 88 H .031 . 032 -.010 T .208 .036 .050 H .023 .019 .007 89 .047 T .200 .023 H .012 . 009. .004 90 .044 T .189 .013 H
91 T .177 .004 -. 040 H
92 T .177 .004 .040
- No Leg Displacement H Strains due to hourglassing T Total Strains
TABLE 3 ROW 2 9 FULL CLOSURE
~axial ~hop < a Mfg I .112 .003 .030 .085 Column H .022 .034 .024 85 .054 .109 T .134 .037 H .022 .034 .023 86 .053 .108 T .134 .037 H .021 .027 .021 87 .051 .106 T .133 .030 H .018 .021 .018 88 .048 .104 T .130 .024 H .013 .011 .013 .099 89 T .125 .014 .043 90 .008 .006 -. 008 . 093
.120 .009 -.030 91
- PP3
.085
.00 H ** P04 .085 92 T .112 . 007 .030
- No Leg Displacement, H Strains due to hourglassing T Total Strains These strains result from dimensions taken from the removed tubes. A possible explan-ation is that these tubes had higher ovality, as manufactured, than the statistical average.
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TABLE 4 RON 3 9 FULL CLOSURE axial hoo Mfg. I c
.082 .005 .020 Column 85 H .015 .018 .024 T .097 23 -.044 86 H .015 .018 -.023 T .097 .023 -.043 87 H .013 .013 -.021 T .095 .013 >>.041 H .011 .009 .017 88 .037 T .093 .014 H .009 .004 .012 89 .032 T .091 .009 90 H .005 .001 -.006 T .087 .006 .026 91 H T
H 92 T .082 .005 .020
" No Leg Displacement H Strains due to hourglassing T Total Strains
4 TABLE 5 ROW 4 9 FULL CLOSURE axial hoo Mfg., s
.064 .002 .020 Column
. H .012 .014 .024 85 T .076 .016 .044 H .012 .014 .023 86 .043 T .076 .016 H .011 .011 .021 87 .041 T .075 .013 H .010 .007 .017 T .074 .009 -.037 89 .007 .003 .012 90 H .004 .002 -.007 T .068 .004 .027 91 .020
. 064 .002 92
.064 .002 .020
- No Leg Displacement H Strain due to hourglassing T - Total Strain
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