ML17340A510

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Inservice Insp in Nov 1980.Describes Gauging of Steam Generator Hot & Cold Legs,Measurement of Visible Flow Slots,Eddy Current Insp of Small Radius U-bends & Preventive Plugging
ML17340A510
Person / Time
Site: Turkey Point NextEra Energy icon.png
Issue date: 12/18/1980
From:
FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17340A508 List:
References
NUDOCS 8012220307
Download: ML17340A510 (68)


Text

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'd TURKEY POINT 4 STEAM GENERATOR INSPECTION PROGRAM I.

INTRODUCTION J

An extensive inspection program for the Turkey Point Unit 4 steam generators was conducted in November, 1980.

The following items were, accomplished:

1.

Gauging of steam generator hot legs and cold legs - all steam generators.

2.

Measurements of visible flow slots in all steam generators.

3.

Eddy current inspection of small radius U-bends in steam generator-G.

4.

Regulatory Guide 1.83 eddy current measurements in the hot legs and cold legs of all steam generators.

5.

Preventive plugging.

Table 1 is a summary of the approximate number of steam generator tubes inspected in each category and in each steam generator.

Table 1:

Suwoary of Total Steam Generator Tubes Inspected.

I~IH L

~IC ld L

~BH L

~BC ld L

~CH L

~CC I L

Gauging 1184 154 1159 U-Bend Rows 2-5

,117 1324 161 79 317

'.G.

1.83 265 272 (Orig.Prog.)

R.G.

1.83 132 111 (Expand.Prog.)

This renort sunwarizes the insn~ctinns con6ucte4, and preventive plugging programs accomplished.

260 157 351 267 110 th~ results of these inspections, II.

INSPECTION PROGRAMS H.

~G The tube gauging program in the tubelane area is based on previously defined 80gg220 3~q

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regions where significant tube defo~>>ation-has occurred.

Tnese regions were formerly determined using finite element analysis techniques which yield tube hoop strain contours as a function of plate deformation.

The boundary in the peripheral tubelane areas near the three and nine o'lock wedge locations is modified to take into account the greasier extent of deformation in this region of,the plate determined by previous experience.

Initially, a 12.5% strain boundary was used in the gauging program when little plant specific data was available.

After two initial inspections and four reinspections of the Turkey Point Plants, review of specific in-formation indicated the conservatism of the 12.55 boundary.

Con'sequently, a 15K boundary was adopted and used in i:"he gauging program during the April, 1979 inspection at Turkey Point //4.

With the addition of the inform-ation gained from that inspection (then totaling five reinspections), it became apparent that the 1SX boundary was also overly conservative and the 17.5% boundary would be more appropriate for the next inspection (May, 1980).

That is, the majority of the tubes inspected in April, 1979 did not restrict the.650 probe.

In addition, all tubes restricting the

.610 inch or

.540 inch probe in the tubelane area all fell within the inspection boundary.

This is significant. since "the.610 inch and

.540 inch restricted tubes form the basis for the plugging patterns in the tubelane region.

Accordingly, the lf.5'A boundary was used as the basis for the May, 1980 inspection.

Since full closure of the flowslots was observed in Turkey Point 4 steam generators during the May, 1977 inspection, Turkey Point 4 was regarded in May, 1980 as beyond full closure by approximately 25.5 EFPM's.

Since the 17.5% contours at 24 months appears to involve much of the hotleg tube bundle, the program was adjusted to reflect prior experience.

2.

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As a result of the May, 1980 inspection at Turkey Point ¹4, it became apparent that the predicted 17;5X strain contour was overly conservative

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and was over predicting the plant inspection data, and that the finite element model no longer gave reasonable expectations as to the position of a strain boundary which might be linked to the locations of the most severly restricted tubes.

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The next inspection was at Turkey Point Unit ¹3 in October, 1980.

As a result of the prior experience at both Turkey Point Units as described

above, the gauging inspection boundary at that unit was also adjusted to

'eflect prior experience.

Additional inspection programs were defined for the periphery,

wedge, and patch plate regions.

These programs were based on pr'evious tube leakage histories, at Turkey Point and Surry Plant

sites, as well as previous gauging results at the Surry and Turkey Point sites as deemed appropriate.

Due to the current awareness of the potentia'1 for tube deformation on the cold leg side, inspections of all three steam generator cold legs were performed.

The gauging inspection boundary for the present inspection (November, 1980 at Turkey Point ¹4 has also been adjusted to reflect prior experience at the Surry and Turkey Point plants, in accordance with the discussion in the preceeding paragraphs.

The typical inspection boundaries fear the May, 1980 inspection (Fig.

1 8 2) are included for reference.

The gauging inspection boundaries for the

November, 1980 inspection are indicated in Fi,gures 3 to 8 inclusive, for each leg of each steam generator.

3.

The following conservatisms were utilized in determining the Turkey Point P4 inspection boundary for this inspection:

l. If a restricted tube was found close to the inspection boundary; the inspection was expanded.in'hat area.

2.

In addition to the specific gauging inspection program, it should be noted that tubes in the central portion'of the tube bundles from Row 12 upward were tested with 700 mil probes, providing early indications on any new deformation which might exist away from the regions usually regarded as active, i.e. the tubelane, patch plate,

wedges, and periphery.

3.

Tubes restricted in previous inspections, including those that were not adjacent to the areas of predominant activity, were incorporated into the

, gauging program laid out generally for the three steam generators.

B.

Flow Slot Measurements Photographs were taken in each steam generator through the secondary hand-holes.

These photographs were then util.ized to measure the openings in the

~l flow slots.

Results're discussed in Section III.

Flow slow measure.-

~ ments provide a gross measure of the continuation of denting, as reflected in the rate of flow slot hourglassing.

C.

Other Dentin Related Ins ections The U-bends of unplugged tubes in rows 3 thru 5 in steam generator C were examined with 100 kHz.

These inspections are performed to confirm the in-tegrity of the small radius U-bends in low number rows.

4.

in iI'Q Ap'"ii, l9/9

>s)eciIon, annulus Keasureiie <ts'ere taKen in steaii generator B.

These measurements provide a qualitative indicator of the upper plate expansion trends in the most affected steam generator.

That had'een the third such measurement of this type for steam generator B.

No obvious trends had been noted in this unit or in Turkey Point Unit P3.

Therefore, this measurement was not made at the

-NOY. 1980 inspection and is not planned for future inspections.

D.

Re ulator Guide 1.83 R.G. 1.83 ins ection The types and extent of inspections required in this area are specified in R.G. 1.83.

The original inspection plans are included (Figs.3-8 inclusive).

During the inspections,'expansion of the program in steam generators A,B and C was accomplished as required by R.G. 1.83.

Results of the inspection are dis-cussed later in this report.

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. III.

Ins ection Results A.

~G Results of the gauging inspections are indicated in Figures 9,10,11,12,13 and'l4 and are summarized in Table 2..'ABLE 2:

TUBE RESTRICTION

SUMMARY

Number of Tubes Restricting Passage of Gauge Listed But Allowin Next Smaller Gau e To Pass S/G and Gauge Diameter SG A Tubelane Hot Le Cold Leg Periphery and lledge Hot Le Cold Le Patch Plate

~HL

.650"

.610"

.540" SG B

.650"

.610"

.540" 29 7

0 32 4

0 0

0

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0 0

3 0

25 3

1 42 8

0 0

0 0

5.

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SG/Gauge Diameter Tubelane Hot Le Cold Le Periphery and Wedge Hot Le 'old Le Patch Plate Hot Le SG C'50" 610" 540" 34 5

1 15 5

1 13 1

0 Summary comments resulting from the'review of this and other data are as. follows.

1.

Tubes in the tubelane region that restrict the 0,650 inch probe lie adjacent to the areas in which such restr ictions occurred in prior examinations.

2.

There were no tubes restricting a 0,540 inch probe in the tubelane regions of 3.'he cold legs in any of the three SG's.

Tube restrictions were noted in the wedge areas and the patch plates of all three steam generators; this activity appears consistent with previous ex-perience at this and other units.

4.

In.steam generator 8 four tube restrictions appeared away from the pattern of prior results.

Two of the restrictions were located adjacent to a tube which had been pulled in Sept.

1975, as part of the earliest field investi-gations of denting.

The other two tube restrictions were located adjacent to the. patch plate inspection area.

5.

In steam generator C, one tube restriction appeared away from the pattern of prior results; this was located adjacent to the patch plate inspection aPea.

6.

Only limited cold leg activity, i.e. restrictions to the 0.610 inch probe, was observed:

No tubes in SG A, 5 in SG 8, and 4 in SG C.

The level of cold leg activity remains quite low compared to the hot leg experience.

7.

8.

No leaking tubes were observed during the previous operating period.

Review of the gauging results shows that 46 tubes restricted the 0.610 inch probe after 4.75 months operation; this compares with 80.such restrictions ob-

'erved in Hay, 1980 after 10 months operation and 72 such re'strictions observed in April, 19/9 after 6 months operations.

As a measure of denting progression, the current rate is consistent with the previously observed slowing rate of the denting process since April, 1979.

I'

B.'1ow Slot Measurements The results of the

//1 TSP flow sIot measurements are indicated in Fig.

18.

Results are consistent with previous behavior.

C. 0~ho i

l "d The U-bends of unplugged tubes in rows 3 thru 5 in steam generator C were examined at 100 kHz.

No indications were noted in these smal small radius U-bends.

0 Re ulator Guide l.'83 Ins ection Results and Evaluation

. The results of the Regulatory Guide 1.83 inspection are summ summarized in Table 3.

As a result of this inspection, a total of 25 tubes were p

gg lu ed for indications equal to or greater than 405 wall. penetration.

Preliminary evaluation of the results suggests probable thinning in the region of the sludge pile in the cold leg occuring at a rate which has not increased substantially since the April, 1979 inspection. 'n average change of the order of 1$ was indicated for Steam Generators A and C, while an average increase of 9.9 was indicated for Steam Generator B.

Since a higher thinning rate was suggested for Steam Generator B, and a higher number of tubes were plugged for indications of 405 or greater as compared to the other two steam generators, additional evaluation of the data were made for this steam 'generator.

Comparison of the eddy current signals from the affected tubes in Steam Generator B with corresponding signals from previous inspections shows the presenceuf an increased denting component.

The dent signal influences the thinning signal, causing slight phase rotation and over. estimations of the depth of penetration.

While some additional thinning may have occurred, the overall increase is likely to be less than is indicated by the reported data.

However, a conservative estimate of the rate of thinning can be made on the assumption that the reported data are accurate.

Comparing the present data with corresponding data reported at the April, 1979 inspection for Steam Generator B, the maximum apparent increase in thinning is taken to be 19% of the wall 7.

thickness which represents the growth from the mi:nimum reportable 205 to the maximum size of indication still in service, at 39/.

On this basis, the maximum growth rate over the last 14.75 EFPN of operation is calculated as 1.3Ã/EFPH.

For 10 additional months of operation, the 394 indication might conservatively grow to 52K assuming the calculated apparent thinning rate of 1.3$/EFPM is continued.

The minimum tube wall required to maintain pressure boundary integrity" under faulted condition load is.013 inches (in the straight section of the tube).

This corresponds to 26K of the nominal

.050 inch tube wall.

Thus an ample margin of 22K wall thickness would exist even if the calculated thinning rate were to conti'nue for an additional 10months.

TABLE 3 Re ulator Guide 1.83

~Ins ection Results Size of Indication (X Wall Penetration

< 20 20-29 30-39 no SG A InTet 54 40 20 3

76 174 71 0

Fut IettT In et 50 30 21.

1 125 133 83 17 SG 8 SG C

n et Ou~let 132 194 57 2

8.

Although experience has shown that advance of the predicted strain contours from the finite element model no longer is an appropriate basis for tube plugging, the plugging criteria which were dqvelopedusing the model have genera11y been retained, since their application has generally been effective in re-ducing the frequency of tube leakage events resulting from denting.

As in the Nay, 1980 inspection of Turkey Point 4, and-the October, 1980 inspection at Turkey Point 3, a program which incorporates all previously observed activity with several rows margin beyond is considered appropriate; again a

sampling of central area tubes provided by the Reg.

Guide 1.83 inspection permits detection of new areas of activity should any occur.

The criterion established for pTugging tubes ii the "region'"of the patch-plate differ from those used for other regions of the bundle.

All leaks in the patchplate region have occurred at the perimeter of the plate or near to the patchplate

boundary, where plug welds connect the patchplate to the main body of the tube support plate.

All ob-served data indicate that the behavior in the patch plate is local innature and is not consistent with the general strained state of the

plate, nor can the behavior be. represented by~ the'finite"element model.

Due to these factors, the regions of the patchplate are inspected and a specific set of plugging criteria applied.

Because of the fact that leakers in this region have not always restricted 0.540 inch

probes, leakers and tubes that restrict the 0.540 inch probe should be treated'like, and the surrounding tubes about both should be plugged.

In addition, tubes that restrict the 0.610 inch probe should be plugged and tubes on either side of the patchplate boundary (plate perimeter on one side the plug welds on the other three sides) that rest'rict the 0.650 inch probe should be plugged.

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Due to the local plate cracking that is believed to occur. at the periphery and near wedge locations, tube leaks may occur here at lower'evels of tube re-striction than in the tubelane.

Thus, the wedge areas should have their own inspection program and plugging criteria.

The plugging criteria at.hot leg wedge locations calls for treating leakers and tubes that restrict the 0.540 inch probe in a similar manner.

'Tn addition, tubes that restrict the 0.610 inch probe hand peripheral tubes that restrict the 0.650 inch probe should be plugged.

Cold leg plugging will be based on the degree of activity noted and rates of progression observed from gauging.

The plugging criteria which support at least ten months of operation are:

l.

'All tubes which do not pass the 0.540 inch probe will be plugged.

2.

Additionally, for in excess of ten (10) months operation, two (2) tubes beyond (i.e., higher row numbers) any tube in columns 1-92,

, in:the tube and region which did not pass the U.540 inch probe will be plugged.

Calculation of the progression of the 17 1/2X strain contour, as P

determined from finite el'ement plots through 24 EFPH after closure results in predicted advancement of this contour by 1.9 tube now for a 10 month operating period.

Given the conservatism of this approach, plugging two additional tubes beyond observed 540 mils restrictions provfdes adequate margin. This criterion was applicable for only one 540 mil restriction, i.e.

'S/G'C, R3-C64, in this inspection.

3.

All tubes which do not pass the 0.610 inch probe will be pluggea.

10.

4.

The tubes in any column for which plugging under criteria (1), (2),

or (3) above is implemented in the tubelane region will also be plugged in the lower row numbered tubes back to the tubelane if not already plugged.

5.

As a conservative

measure, tubes completely surrounding any known leaking tubes including the diagonally next tube will be plugged if not already covered by the foregoing criteria.

6.

In any given column which is surrounded by columns containing tubes with I

significant tube restrictions or prior plugging, (thereby creating a

"plugging valley" in the pattern) engineering judgement will be used to fill the bottom of the valley.

In the peripheral tubelane areas near the three and nine o'lock wedges, tubes surrounded by previously plugged tubes or tubes exhibiting high deformation activity will be plugged based on engineering judgement.

Particular attention was paid to 650" restricted tubes relative to the ten month operating period.

11.

7.

Additional preventive plugging will be'mplemented atthe hot leg wedge locations.

This plugging will include all tubes that:

a.

Restrict the 0.540 inch probe..

b.

Restrict the 0.610 inch probe.

c.

Restrict the 0.650 inch probe at the periphery.

d.

Surround leakers and tubes that restrict the 0.540 inch probe..

including the diagonally next tube.

8.

Application of the criteria specified in 7 above, will be made on the baSis of engineering judgement for cold leg wedge locations.

9.

Additional preventive plugging will be implemented in the patch plate region.

This plugging will include all tubes that:

a.

Restrict the 0.540 inch probe, b.

Restrict the 0.610 inch probe.

c..

Surround leakers and tubes that restrict the 0.540 inch probe including the diagonally next tube.

d.

Lie on either sides of the patchplate boundary {plate perimeter on one side, the plug welds on the other three) and restrict the 0.650 inch probe.

The ten month operating period was also evaluated relative to a postulated main steam line break accident

{HSLB).

In doing this, it was conservatively assumed that each unplugged tube in the two rows beyond the present tube-lane plugging boundary in the most advanced SG(B) would leak at a rate of 0.05 gpm/tube during a postulated main steam line break.

Using the fact that there are 92 tubes in a row, the total number of unplugged tubes in the tubelane region lying adjacent to the current plugging boundary at the 12.

end of the 10 month operating interval is less than 184 Cubes.

The total leakage resulting from 184 tubes is 9.2 GPH.

This added to the 0.3 GPH leakage assumed to be present at the start of a postulated main steam line break (which would increase to approximately 0.7 GPH due to HSLB differential pressures) yield a total leakage less than 10 GPH which has been determined in previous submittals to be an acceptable level of leakage during a postulated HSLB.

B.

Re u')ator Guide 1.83 The criteria for plugging tubes in this area're established in the regulatory guide.

C.

Preventive Plu in Accom lished The preventive plugging programs that were implemented to justify at least 10 morths operation are indicated in Figures 15, 16 and 17.

Both gauging and Regulatory Guide 1.83 program plugging are shown on the figures.

The coordinates of the plugged tubes are listed for each steam generator in Tables 5,

6 and 7 respectively.

The cumulative percentage of tubes plugged to date is 23.8Ã.

Table 4 summarizes plugging performed during this outage.

TABLE 4 S/G A

S/G B

S/G C

~Gnu in 24 37 44

SUMMARY

OF TUBES PLUGGED R.G.

1.83 3

~Pl di E

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TURKEY POINT UNIT lI4 F

N VEMBER 1980 INSPECTION

~VA1 CCRfAATWR A A.

Recormllended Plu in for Gau in Results For 6 Mo. Plur in Pro ram:

R-C 14-4 16-4 17 - 4 8

5 16-5 9-6 16-6.

17-6'5

- 9

'15 - 10 17 - ll 28 - ll 7 - 26 3 - 43 44 47 7-69 10- 89 Total Plugging for Gauging, 6 Mos.

Program:

17 tubes B.

Re

. Guide 1.83 Plu in:

R-C 6-75 ll - 22 9-21 Total Reg.

Guide 1.83 Plugging:

3 tubes Additional for 10 Mo. Plu <in Pro ram:

R-C 14 - 9 16 - 11 17 - 12 18 - 12 10 - 88 9 - 89 9 - 90 Total Additional Plugging for Gauging, 10 Mos. Program:

7 tubes 14.

ej TURKEY POINT II4 NOVEMBER 1980 INSPECTION STEAN GENERATOR 8 A.Recommended Plu in for Gau in Results For 6 Mo. Plu in Pro ram:

Additio'nal for 10 Ho. Plu in Pro ram:

R-C 4 -

1'-2 11-4 15 - 8 23 - 8 15 10 5 - 17 8 - 24 42 - 30 9-38 45 - 44 37 - 53 29 - 54 31 - 54 R-C 41 - 65 26 - 72 37-73 5-78 7 - 84 7 - 85 8-85 10- 85 9 - 86 6 - 89 7 - 89 10,- 89 11 - 89 17 - 89 R-C 7-90 7 - 92 R-C 16-9 14 - 10 16 - 10 17 - 10 7 - 25 25 - 73 9 - 85 Total Plugging for Gauging 6 No. Program:

30 tubes.

Total Additional Plugging for Gauging, 10 Mo. Program:

7 tubes.

B.

Re

. Guide 1.83 Plu in :

R-C R-C 14 - 29 23 - 46 12-30 10- 46 23 39 ll - 46 24 39 13 - 46 24 - 40 7 - 62 ll - 44 7 - 64 22 -.44 7 - 65 22 - 46 Total Reg.

Guide 1

R-C 17-69 9-81 10- 47

.83 Plugging:

18 tubes.

15.

TABLE 7 TURKEY POINT UNIT II4 NOVEMBER 1980 INSPECTION STEAM GENERATOR C

R.

Recommended~Plu gi~nfor Gauging Rdsults For 6 Mo~P'lu ing Pro<}ram:

Addi i i

1~0.

Pi n IL~:

22 - 7 14 - 9 42 31 42 - 32 42 - 33 42 - 36 43 - 36 41 - 37 42 - 37 43 - 37 41 - 38 42 - 38 43 - 38 38 - 39 5-41 6 - 41 R-C 43 - 46 33 - 51 7 - 54 8-54 3-59 4-59 42-62 3-64 4-64 5-64 41 - 66 5 - 72 8-83 8-86 9-86 9-87 9-90 R-C 15-8 42-34 42 - 35 43 - 45 42 - 46 43 - 48 41 -63 3 - 65 8-84 9 - 85 10-89 Total Plugging for Gauging, 6 Mo. Program

= 33 tubes.

Total Additional Plugging for Gauging, 10 Mo. Program

= ll tubes B.

Reg.

Guide 1.83 Plugging:

R-C 10- 46 14 - 53 53 5-58'otal Reg.

Guide 1.83 Plugging:

4 16.

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IilSPFCT ION PROGRAM"NOY. I 1980 TURKEY POINT UNIT 84 STEN GENERATOR C INLET i'7 LE:

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0) R
6) % R r r r-r t

(0 (0 Q (0 S N U) Q lA N < W rt. < < R P) N R P) N N N R (U QWNP)-COLUM LOONNNOC 000 ONC GG DOGSCtRtR R R LOO PS AOOC 000ONONO 38 YiN0 NNN ONNI~ 0 ~ NN~<g OP 'R~ I ~p NNCNN SSD DS AiD DAA At AA A L DAD S A DDDA CCLLL LLL i LLLO C000 32 NNNRN NNNN NNNNN NC YNN 00 0 00 NC Ni -FS D D A A D A AD DD AAAAA AAAAA AAAti ~C N LL OLL DD LPP PPP PPP RR~ I LLD D RRRRI L L AS OC C ~ Ct ON. gSI CIR RR D RL + D DLLND RL LPL~ I LLLI R D DD+L~S LL.L.LS SS LLLLLNRDALL Ni LLLFi- %LL LLDLLLNPSINLDS LLLLLLLLL. L LLLLLL SLR SLLLLR L NLLLLLLLLLLLN<NLLS LLI-LLI-LLLSLLLLL.RLLLLLLLL SLI48$ SLLLLLLLNRRNLLN RRRRRLLLPLL, SRtPRLJJJLI P JJJJJJJJJJJJJJJJLLLLLLLLLLl PI4I4KLI4 LLLLLLLLLSLLLLLLLLLLLLLLSI4LNLI4SLLLLLLLNRRLLLLL JJJJ J J J J J J J JJXXXIZLLLLLLLLLNXXIXZXLLLLLLLLLPIXZZLLLLLLLLLLLIXXXIPLLLLt LLLPPIZIIL JJJ J JJJ J JJ J JJXIZIIJJJ J J J JJ J JIXZIXXJ J JJ J J J J JJZXXIJ J J J JJ J JJJJXXIIIJ J J J J J J J J JJXZIIJ + SYL OC00OC 8CSON SSN SSS SSS SSC LS 'RNLLL RLLNLC ~LLYiNOC I LLL~C RRLLRLLL~L RLLLLLLL~Q RLLLLLLLAC NLLLLL~> LLC NLLLLL C LLLLLI C NLLLLLI-PLLLLLLLPPPR LLLLLLLLLPNP JJJJJJJJJJJJ 28 22 18 4 12 ROM MANWAY TURKEY POINT UNIT -.'4 GAUGING RESULTS NOV.,1980 STEAM GENERATOR B INLET REsTRIcTED U o.o E NpZZl E X =.II40 ~R IE HONE .610 PROBE 12 =.650 PROBE 77

~ C

42 1 1 66 1 1 1'I S 48 9 TUBES PLUGGED 8/75> TUBE PLVGGED 8/75p BARE HOLE PLUG HL-E/P CL 6/75'"BES PLVGGED SHOP IIELD 9/75'ARE BOLE PLUGS HL,CL 9/75'UBES PLUGGED 5/76'UBES PLUGGED 8/76'VBES PLUGGED J 188 1 L 884 H 9 N 79 P 28 R 52 S 48 'Gv'~E 12 11/76'V LVGGED 7/77: IiELD REPAXR 7/77> TUBES PLUGGED I8/77< UBES PLUGGED 2/78'UBES PLVGGED 8/78l TUBES PLUGGED 4/79> TVBES PLUGGED 5/&8> IIECH PLUGGED S IES: A4 FLA-B NLAF)-G)KLAN0)>LAO)-G)WU)R G)&lAN-QNU)(0-S S (0 Q lA U) lA U) LO f<< ~ ~ R F) N 0) F) N R (U N (~ Q1 lA P) CO BOS'N(USC) ÃNNARCd GG 0 GG 00 OCC ONC SNN Oi"4 CN NNC NNi% ONNN CiNNR CPNR NNNN i 4NNNIil NO YNY 00 0 OC S NNONNQ Ni%NRN DOGS 0 G G LOCYNNOCRROCNCNLLOO PS O~RiR R AS SSP PS A ~ D PAA A AA P P A L A AA PAD S A PDDA 00AOOOOOO000ONCONONNCSCOCLLL LLL LLLC 0COOS PDP LOC AAAAA CCOC AAAAA AAAH S 42 38 36 34 32 28 26 22 NO iNR OC iYi LL OLL 0 PAD 0 DD SSY SSS SSS SSC RRLS ~ RNLLL 18 16 OS LPP OOI PPP C NARY

CNY, DP D

P PD OSL C S LD D 0 R RRRRLL. P RL. D PLLNP LLLLLNRPALL SS RRRRRLLI PLI NLL. LLDLLLNPStNLDS SR t P RLJJJLLP PNI LI LLLLLLLLN 4 NLLS RLLNLC LLNNOC P L AS LLLLLN 0 RRLLRLLLI L RLLLLLLLC RLLLLLLLRO S P PDL S RL LPL. LLLLLS SLR LLLLLLLLL LL LLLLLLR L E LL NLLLLL LLC L LLLLI-R S 'LLLP NLLLLL 0 SLLLLR LL NLI-LLLL 0 LLLLLLLLLSLLLLLRLLLLLLLL SLHHSSLLLLLLLNRRNLLN NLI L,LLL 0 12 4J J J J 4J 444J JJ J J JLLLLLLILLLLPHHKLH I LLI LLLLLSLLLLLLII-LLLLLISHLHLHSLLI LLLLYRRLLLLLPLLLLLLLPPPR 44444J J J J 444JIXIJILLLLLLLLLNJIZZZILLILLLLLLPIJIZLLLLLLILLLLXXJIJPLLLLLLLLPPXIXZLLLLLLLLLLPNP JJJJJJJJJJJJJIXZXZJJJJJJJJJJXXXXXIJJJJJJJJJJXXXXJJJJJJJJJJJIXZXZJ4JJJJJJJJJXIXZJJ44444444444 + + g p,y TURKEY POINT UNIT ;4 GAUGING RESULTS NOy]gBP STEAM GENERATOR B OUTLET N .610 PROBE 5 = i650 PROBE Not Tested

~4 P

8 962 5 2 93 5 2 9/74> TUBES PLUGGED 6/75> T'JBES PLUGGED 1/76> TUBES PLUGGED 5/76> TUBES PLUGGED 9/76> TUBES PLUGGED 11/76> TUBES PLUGGED 1/77> TUBES PLUGGED 3/77> TUBES PLUGGED 9 2 157-118 62 54 1 . 56 4/77> 7/77> 7/77> 2/78> 8/78> 4/79> 8/78) 5/89> TLSES PLUGGED BARE HOLE HL, E/P OUTLET TLSES PLUGG<M TUBES PLUGGED TUBES PLUGGED TLSES PLUGGED EP 5/76, 1'R HL NECH PLUGGED SERj:ES <4 F AC URN>> tCMGGGGPPDPCROOLK D R 0 OOL OOCC OOOO oo QQ OOC OLCN AL Ati .=-.~K)C OOCOo COo OOC 00 OC LY MiR OC OC 0 oo 0 OC OL" OC oa 000

O Q 0

LL OQ00OLL B"lKR L OO OO OO ROo OCOC QC0OL 00 HH IBIEiM Htit i HHiHi I i Ii IHiMi OQMHHMH OIHMMMH CPMMML PLR R 0 NR LRNL L 0 LNNLLL 0 HLNLI LI-HHHiIHLKLILKH HLLLLLKLLLKLL f FFFFFFFFFFFF + 8R YBB MLN SLSN NY KLKNK L F KKtCK NNNLLKLK tCtCKICNNNKLLKLKN FFFFFFFFFFFFFF AAB AA OL0 NNC RL RlCICtC K(CICKK KKlCKR KKKRRC RLKKKRO ~RRKK!Cro RRRRKKKC H B SHMB M S BHt i RiBS BEB 8B n.KNR KKLL'KN KNC NLICK t.R NLKlCN ,0 NNLlCKMF C Nt4LKlCHRR L NHLKKHNNNNHN FFFFFFFFFFFF + 8 88 RiM RRRL "4LNS KBB HM5~R Sg S~S RR 8 8 KRKS RlCL IC RRRLSBB L NKNM YS KSSSSSM&IC tCLK NLtCLL jCRKLSLM)CBKSICBtCNI SBSSSSmKMKK ZK AKHLKLL KRlCLKLBKBKKKKKB<LKKKLLOKKKK p p Ng py TURKEY POI NT UNIT i~4 GAUGiNG RESULTS NOV. l980 STEAN GENERATOR C INLET IIEBTRTBTEO TOBEB IIO.OP TOIIEB NTOZZf =.BTO PROBE e-., G-0 t)AClt'.t', 62 KKRRL}CKKtC XZZXILkLLKKLKKNJXZHXLKKKKKKKKLLLKKKLLLtCKKKKKHHLICKKKN FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF 42 Q tC)t 38 36 34 32 3 38 28 26 24 22 2 28 18 ~a 12ie 8 6 2 .R04

~4

96 2 5 2 93 5 2 6/7S TUB"S PLU GED I/76p TUBES PLUGGED 5/75s TUBES PLUGGED 9/75r TUBES PLUGCED ll/76r TUBES PLUGGED l/7?g TUBES PLUGGED 3/7?r TUBES PLUGGED ~ E 8 9/?4> TUBES PLUGG D T.J K L l4 i9 P R 9 4/77 g 2 7/7?r lS? 7/77r ll8 2/78> 62 8/78r 54 4/79r l 8/78z 56 5/89r URE 14 UBES PLUGGED BWE HOLE HL. E/P OUTLET TUBES PLUMED TUBES PLUG"ED TUBES PLUGGED TUBES PLUGGED EP S/76 MR HL tfECH PLUMED SERjES 44 FLA-C <RS% I+ +LO I KHGGGGPPPPCR 00 OOCC PP R KLRY OEOOL000 0000 0000 000 0000OOC00 000 000 LLC 0OOC CLOY 38 00 36 3r LC OLC OCOLL YKR L OC 3N 32 3N 31 00 OC 000 000 000 0OC R OC LN t.R 00 OC 0 00 0 OC HC 00 t".H HiH HfiH iHiHHiHi I<HifH OCi IHHHt i 0 I HHHHH 0 j~ Hgi IL 0 L OLL 0 iNR 0 - LRNL 0 LNNLLL 0 HLNLLLL LKKKK iHi fiIHHLKLLI-KHI-KKKK LLLLKLLLKLLLKKKK HL FFFFFFFFFFFFFFFFFF + )R 8~B B BHiIB BB B H ~ B BBK Bt if ~ K BBB H B BB RRRI NLNB RRRI BBB+ NKNt ~ Y BR RiBB BEB BB KBB t WB R BB B~B RR B KBBBBBt.NK B RR B B KR B NBB HLN BLBY Kl-KYK KRKBB KRKLBLHKBKBKBKNBBBBBB Kt KKN I-KKKK NN KLK! KNLKLLK ~KL~KHLKLLK KRKLKLBKBKKKKKB~LKKK K LI 1KKKKKKRRLKKKK NNNLLKLK NNNKLLKLKN FFFFFFFFFF XXXXXLKLLKKLKKNUXXHXLKKKKKKKKI LLKKKLLLKKKKKKHHLKKKKN FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF 8 2( 28 26 24 2 N 28 1c

18 1 6 14 12 1 18 8 6 2 OCOC - COC COLOL0 NNC RL RKKK KKKKK KKKKR KKKRRC RLKKKRC RRKKK AC RRRRKKKC RKiYiR KKLL KKN KNC NLKK iHR NLKKN 0 ."4NLKKHF C NNLKKHRR L NHLKKHNNNNHN FFFFFFFFFFFF U I HANMAY GAUGING RESULTS

NOY, 1SBO STEAN GENERATOR C

OUTLET I. TE13 v X =.540 PROBE .610 PROBE o =.660 PROBE Npge NOZZLE + Not Tested

44

33 63 1 2 02 132 9/ ~ 4; TUBES PLUGGED 6/75; TUBES PLUGGED DATE NOT KNOWN. TUBES PLUGGED SHOP MELD 5/76 TUBES PLUGGED 11/76; TUBES PLUGGED 7/77; TUBES PLUGGED H 1 169 J 86 K 2 L ?9 M 72 7/77; MELD REPAZR HL, E/P CL 2/78; TUBES PLUGGED. 8/78; TUBES PLUGGED SHOP MELD, HL HISDRZLLED 4/79; TUBES PLUGGED 5/83; VECH PLUGGED CDWU)(0 CDWLO(0 CD& 0) R 0) WU) R 0) ALOD) 0) WiA(9 CDOGS(0 CDNU)l-CD%a) OOa)r r r t f $ $ $ $ $ NU) RlAR C 4 < C <NP) RAN(URRhl(U Sr U)0) - CO GXOX ZOX zozz OO 0 OOO JOXOO. f Zi OOOG OC OOOJ OOC OZHH Hi lH Hi lf ~ HHH XZGJHG LHH HiHH OOCOOC OXOXOZ GIX~GGGG XXX~GGGGHC OC OC C0 OC OO IC OC OC OC C OC 0 XC CC OC JJJ JJJJ JJJJJ H~ A A A AAAAAA AAA AA LA IQG QQG QQQO00OOA <<OC OCOC '4J OCLOC OC I I GQL 0 OOJJJJJ 0< JJJJ Lp-' JJJJ OZ-00O. l JJJ LLLJ LJLLI 0 LJJZJL Ol JJJXJLL LLLX'JJJZJLLLL FFFFFFFFFFFFF XQQGOC LQQQiC pQQ&w + G~QQQQC XGQHHiHQGG GG~ IZ iHHiH F B LJHH HH GP i LLLB LvLJL 8 BKHJ JG JLJJt LLLHH H Ht ~ LLXZ JJ JHiL %Q~WP LG Hi Xl L HLJrLH I 81 HHZZ 8JLQQX GIQQLGt.t ~ c C LJHHZB LIXZHHHXXXX8 t LLXIZZ XX QQ QXZXIJLL 1 8&8& BBBBQJ Jt XIXLL QQ Q I H LJXXZX l-BXXZJHHIXZIX~ XXXXXGL XXZGG GXZZXXX~ HXIZZBZXGGJJB XZZJL GQQQGQQQG i C XX ILXBBHLBLXZZX GXGJ JL LJZZZXLXZGXIZZLZZIGXQXIZXXIGXXIXZGGGXGIZGZZXLLXXIIXIXXGGGGGGGZIZGLLGQQG GGG IL FFFFPFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFPFFFFFFFFFFFFFFFFFFFFFFF + 34 32 28 26 24 22 23 18 16 12 18 8 6 2 4 4 4 4 4 I i gAggpY TURKEY POINT UNIT p4 STEAN GENERATOR A NOVENBER, lg80 RECOMMENDED PLUGGING PER: NOZZLE ---+ = Gauging Results 24 tubes) = Reg. Guide 1.83 3 tubes)

i

4i2 1 1 e6 1 1ll 3 48 9/74 "S PLUGGED 8/75). v E PLUGGFD 8/7S) BARE HDLE PLUG HL-E/P CL 6/75) TUBES PLUGGED SH37 I)E D 9/75) BARE HOLE PLVGSHL. CL 9/75) TUBES PLUGGED 5/76) TUBES ?LUGGED 9/76) TVBc.S PLUGGED J 18B K 1 L 324 H 9 H 79 P 28 R 52 S 48 I 1 /76) TUBE Gc D 7/77) 'FIELD Rc ).R 7/77) TUBES PLUGGED 'l8/77) TUBES PLUGGED 2/78) TUBES PLUGGFD 8/78) TUBES PLUGGED 4/79) TUBES PLUGGED 5/88) HECH PLUGGED i SER S <4 F AB -- 0) W U) P) ~ 0) W U) 07 0) W LO (0 0) W LO R 0) W LO F) 0) > LO N 0) W LO 07 0) W LO (0

0) 3) C) CO R R f t

t t t (0 (0 $ (0 Q LO U) 0) U) LO <.< "f < < (0 R N 0) 6) R (U R R N - - - - 0) f LO P) CO S %SR(0<@ S SLflLOLOLO I LOONiNNOC RSVNS%$ < N 'I) IT) lT) IT) R 8 R NONL OCG90s Ri R GP GA R ~ R GG GG 0 A G S CQ 000 0 ON SNN LOOOC PS AOOO0CQQ OCONCCNCNCSCCC CN SSD DS A ~ DAA NNC LLL LLL LLLC iNNN ONNN O ~ NNR CPNR ADAD AA 0000 NNONNR NNYRN A L A DDDA SNLOC NiNNY NYNNY NC NNN k AD 1 AAAAA AAAAA AAAI~ OC OC 0 OC S D DI.D OC SON NC NC NR Y iQ0 SSN SSS SSS SSC AD LL OLL C ~ LPP Cg P P'P LS RNLLL RLLNL0 ~ LLi4NCC LLLLL~C RRI-LRLLLI L RLLLLLL' 00 ?PP e!ERR . CNN -~w-- DODD f!Sl L AS RR D RL. S D RLLLLLLLRC NLLLLL Lt 0 NLLLLL C NLLLLIL C NLLLLLL PLLLLLLL?'PPR LLLLLLLLLPNP JJJJJJJJJJJJ + E ~LL LLLP D DLLNC -~-W, S LLLLLNRDALLS DDL S LLLLI-S S ~)- LLD D Clh'QRRRRLL S RPRRRLLLPLL NLL LLDLLLNPS1NLDS LLLLLLLLL LL SLR LL iSR i P RLJ J J LL? P NLLLLLLLLLLLN ~ NLLS LLLLLLLLL' L L LLLRI-LLLLLLL ~ S LNi+S S LLLLLLLNRR NLLN I LLLLR LLI-LLLFt SLLLLR TURKEY POINT UNIT s."4 RECOMMENDED PLUGGING PER'TEAM GENERATOR B e = Gauging Resu1ts (37 tubes) NOVEMBER, 1980 X = Reg. Guide 1.83 (18 tubes) ~ 'JJJJJJJJJJJJJJJLLLLLLI-LLI-LPI4iuKLMILLLLLLLLLSLLLLLLLI-LLLLLLSNLNLI SLLLI-LI-LYRRLLLLL JJJ J J J J JJ JJ JJIZIZXLLLLLLLLLNZXXXIXLLLLLI LLLPZZXILLLLLLL.LLLL.XZXXXPLLLLLLLLPPXXIZL JJJJJJJJJJJJJZIXIZJJJJJJJJJJIXIXIZJJJJJJJJJJIIZZJJJJJJJJJJJZXIXXJJJJJJJJJJJXZIXJ 42 AQ 38 36 =2 3: 3 8 28 2'6 24 2 22 28 18 16 12 8 9 8 7 2 RQR~

8 96 2 5 2 93 5 2 9/ 6/75) t/76> 5/76> 9/76> 1 t/76 1/77> 3/77 > TUBES PLUGGED TUBES PLUGGED TUBES PLUGGED TUBES PLUGGED TUBES PLUGGED TUBES PLUGGE'D TUBES PLUGGED TUBES PLUGGED J K L H N P R FIG' >7 9 4/7i BES PLUGGED 2 t57 f 'la 62 54 56 7/77> BERE HOLE HL. E/P OUTLET 7/77> TUBES PLUGGED 2/78> TUBES PLUGGED 8/78> TUBES PLUGGED 4/79> TUBES PLUGGED 8/?8) EP 5/76. 'WR HL 5/88> HECH PLUGGED SE ES,n< FLA-C: qual Q) <%SORY LOU) S 4 t R G 03 S < R S C) Q < R G % (0 ~-~P) P) NP) R(UNRCdR -sr. RN-COLUMN>> KHQBBQDOPOOR OOLKOEOOL LA>>++< OOC OOC OOOC OOQ 00 00 LY OC OC C OC 0 OC MC 00 Q Ll I ii I Mfi li I MifiMiM i fiMiMM ~ OCi IMMiMiM 0 l MMMI'll~ C t iiMML CAI Ol L C - +NREM C I RNL>L C Li<NLLL 0 ~ MLNLLI-L iMiiMiIMMLKLLLKM MLLLLLKLLLKLL FFFFFFFFFFFFF + LRN OC000 OO G OO OOC OOC OLON OCOC NC LG C NR OLL NKR L OC OC OG C0 OC LL LL 00OOO i' Mi 8 8 SMi IB i 8 8MiMi K 888 8R YBB MLN BLBNI R ~ BB BcB BB KBB Mp9 R 88 8 8 RR gB 98~ RKL Ni . LNS I RRRLBBB ."}KNM4 NS KBSSSBMh K RRRL KRK K KLKNK <- KLKLQKNLKLLK KRKLBLMKSKBKSKNI889889 I KMKKN LKKKK LLKLK~KK'KMLKLLK KRKLKLBKBKKKKKB>LKKKI-LIKKKKKKRRLKKKK LLKLKNZZZZZLKLLKKLKKNJZZHZLKKKKKKKKLLLKKKLLLKKKKKKMMLKKKKN FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF LKKKK I-KKKK LKKKK FFFFF iNiN NNN NNNK FFFF 4t 43 38 36 34 32 3)

38 28 25 2 > 2 D 2 28 l6 ) C 18 8 6 2 COC R OG OO OCCOC0OLOL0 NtvC RL RKKK KKKKK KKKKR KKKRRC RLKI KRC RRKKK AC RRRRKKKC RKNR KKLL KKY KNC NLKK MR NL KKY C NNLKKMF C NNLKKMRR L NMLKKM}iINNNMN FFFFFFFFFFFF + TURKEY POINT UNIT -.4 RECOMMENDED PLUGGING PER: STE~ GENERATOR-C = Gauging Pesults (44 tubes) ~~zz ~ + NOVEMBER, 1980 X = Reg. Guide 1.83 ( 4 tubes)

Fig. FLOW SL T MEASUREMENT FULL C. LO5 0 R E . 2.5' LE&END

B, s/c A -~- s/c B ~ ~/c C 5<< 0 Vl 0 gl I 8 1 30 35 50 EF Pm/A VT

q t 1 0 J

STATE OP FLORIDA , ) ) COUNTY OP DADE ) ss ~ A. D. Schmidt, being first duly sworn, deposes-and says: That he is Vice President Light Company, the herein; of Florida Power 6 That he has executed the foregoing document,; that the state' ments made in this said document are true and correct. to the best of his knowledge, information, and belief, and that he is authorized to execute the document on behalf of said A. D. Schmidt Subscribed and sworn to before me this / g ctay of NOTARY PUBLXC, in and for the County of Dade, State of Florida Rotanr Public, State of Rorida at Large My OmmiS"iOn e ireS. ra~ Co~a isa>> E Plraa October 30, te83 a.

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