ML20100B934

From kanterella
Revision as of 05:52, 24 September 2022 by StriderTol (talk | contribs) (StriderTol Bot change)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Rev 0 to Vogtle Electric Generating Plant - Unit 2 Pressure & Temp Limits Rept
ML20100B934
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 01/23/1996
From: Bailey J
GEORGIA POWER CO.
To:
Shared Package
ML20100B914 List:
References
NUDOCS 9601290296
Download: ML20100B934 (26)
v • d • e


Text

. = . . . . - -. - . .

4 VOGTLE ELECTRIC GENERATING PLANT - UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT REVISION O Prepared by: O.

/ 23[96 e o 1 Reviewed by:

v

$. / /2 5 /f (,

9601290296 960126 4 DR ADOCK 0500

VOGTLE ELECTRIC GENERATING PLANT - UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT b

Table of Contents Section Page 1.0 Reactor Coolant System (RCS) Pressure and Temperature 1 Limits Report - Unit 2 2.0 Operating Limits 1 2.1 RCS Pressure and Temperature (P/T) Limits 1 J

2.2 Cold Overpressure Protection System (COPS) Setpoints 2

-3.0 Supplemental Data Tables 9 4.0 Reactor Vessel Material Surveillance Program 18 5.0 Reactor Vessel Sun eillance Data Credibility 18 6.0 References 18 i

l l

l ii

VOGTLE ELECTRIC GENERATING PLANT - UNIT .2 4

PRESSURE AND TEMPERATURE LIMITS REPORT ]

l List of Figures Figure Page

. l 2.1 -1 Unit 2 Reactor Coolant System Heatup Limitations 3 (Heatup rates up to 100 F/hr). Applicable for the First 16 EFPY (With Margins of 10 "F and 60 psig for Instrumentation ]

Errors and Margin of 74 psig for Pressure Difference Between i Pressure Instrumentation and Reactor Vessel Beltline Region). l l

- 2.1-2 Unit 2 Reactor Coolant System Cooldown Limitations 5 (Cooldown rates up to 100 F/hr). Applicable for the First 16 EFPY (With Margins of 10 *F and 60 psig for Instrumentation Errors and Margin of 74 psig for Pressure Difference Between Pressure Instrumentation and Reactor Vessel Beltline Region).

1 2.2-1 Unit 2 Maximum Allowable Nominal PORV Setpoint for the Cold Overpressure Protection System 7 l

i l

l 1 ...

111 4

., c-

VOGTLE ELECTRIC GENERATING PLANT - UNIT 2  ;

l l

PRESSURE AND TEMPERATURE LIMITS REPORT  ;

)

List of Tables .,

1 Table Page l

2.1-1 Data Points for Unit 2 Reactor Coolant System Heatup Limitations 4 2.1 -2 Data Points for Unit 2 Reactor Coolant System Cooldown Limitations 6 2.2-1 Data Points for Unit 2 PORV Setpoints 8 i

3.0-1 Comparison of the Vogtle Unit 2 Surveillance Material 3011-lb 10  :

Transition Temperature Shifts and Upper Shelf Energy Decrease ,

with Regulatory Guide 1.99, Revision 2, Predictions 3.0-2 Vogtle Unit 2 Calculation of Chemistry Factors Using Surveillance 11 Capsule Data j 3.0-3 Vogtle Unit 2 Reactor Vessel Toughness Table (Unirradiated) 12 3.0-4 Vogtle Unit 2 Reactor Vessel Surface Fluence Values at 16 EFPY 12 (Fluence Based on E > 1.0 MeV 3.0-5 Summary of Adjusted Reference Temperatures (ARTS) for the 13 Vogtle Unit 2 Reactor Vessel Beltline Materials at the 1/4-T and 3/4-T Locations for 16 EFPY 3.0-6 Calculation of Adjusted Reference Temperature at 16 EFPY 14 for the Limiting Vogtle Unit 2 Reactor Vessel Material (Lower Shell Plate B8628-1)

I

l VOGTLE ELECTRIC GENERATING PLANT - UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT List of Tables (continued) i 3.0-7 Neutron Exposure Projections at Key Locations on the Vogtl,e 15 l Unit 2 Pressure Vessel Clad / Base Metal Interface ,

3.0-8 RTers Values for Vogtle Unit 2 for 32 EFPY 16 3.0-9 RTns Values for Vogtle Unit 2 for 48 EFPY 17

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 l PRESSURE AND TEMPERATURE LIMITS REPORT i

1.0 Reactor Coolant System (RCS) Pressure and Temperature Limits Report (PTLR)-

Unit 2 This PTLR for VEGP Unit 2 has been prepared in accordance with the requirements of ,

Technical Specification (TS) 5.6.6. The TS addressed in this report are listed below:  !

1 LCO 3.4.3 RCS Pressure and Temperature (P/T) Limits LCO 3.4.12 Cold Overpressure Protection Systems (COPS) 2.0 Operating Limits The parameter limits for the specifications listed in section 1.0 are presented in the following subsections. The current limits were developed using a methodology that is in accordance with the NRC-approved methodology specified in Specification 5.6.6 (Ref.1) with two exceptions. The two exceptions are the fluence methodology used to calculate the heatup and cooldown limits and the incorporation of random pressure uncertainty in the cold overpressure protection system setpoints. Future changes to these limits will be made in full compliance with the NRC-approved methodology, and the first revision to the limits after initial implementation of this PTLR will be submitted to the NRC for prior approval. Subsequent revisions will be made in accordance with the NRC-approved methodology without prior approval. It should be noted that the heatup and cooldown limit curves and the cold overpressure protection system setpoints were approved by the NRC staff by Amendment 65 dated June 8,1995.

2.1 RCS Pressure and Temperature (P/T) Limits (LCO 3.4.3) 2.1.1 The RCS temperature rate-of-change limits are (Ref. 2):

a. A maximum heatup of 100 F in any 1-hour period.
b. A maximum cooldown of 100 F in any 1-hour period.
c. A maximum temperature change ofless than or equal to 10 6F in any 1-hour period during inservice hydrostatic and leak testing operations above the heatup and cooldown limit curves.

2.1.2 The RCS P/T limits for heatup and cooldown are specified by Figures 2.1-I and 2.1-2, respectively.

1

i VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2

! PRESSURE AND TEMPERATURE LIMITS REPORT 2.2 Cold Overpressure Protection System (COPS) Setpoints (LCO 3.4.12)

The power-operated relief valves (PORVs) shall each have li,ft settings in accordance with Figure 2.2-1.

l The setpoints in combination with the relief capacity of the PORVs will protect the RCS from the limiting mass injection transient of two centrifugal charging pumps plus the positive displacement pump injecting into the RCS and the limiting heat input transient of starting a RCP with the RCS 50 F colder than the secondary coolant.

l l

i l

2 l

~ . . _ - . . . . . - - -_ -. ._ _ . - - _._. .. _. - - . .- . - - - - - . - - -

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT l l

.t j

2500 l l l Criticahty

      • ""*~ l Il(Mkl g ._.

ll >=100.'F/hr I

1750

- l . .

g /

Ii I ll M l

1250 IspYs0,T N r/ operamon ,

I E

1M up 0 FAw '

,50

[ - Creanut r n:=yumitBased-

" s ,s.re

-A/ MZE.W 250 0

0 50 100 150 200 250 300 350 400 460 500 indicased Temperature (*P)

MATEptim.aAss Casper comese Asennes. 84A WT% 1 (Assual .GA WT%)

Rrte0T '"8: A""'8 * "A T 4 nr,,gaa ss arre. (Assusf.som, e sur.na e aur.w, Figure 2.1-1 Unit 2 Reactor Coolant System Heatup Limitations (Heatup Rates up to 100 F/hr) Applicable for the First 16 EFPY (With Margins of 10 F and 60 psig for Instrumentation Errors and Margin of 74 psig for Pressure Difference Between Pressure Instrumentation and Reactor Vessel Beltline Region).

3

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 3 PRESSURE AND TEMPERATURE LIMITS REPORT i

Table 2.1-1 ,

Data Points for Unit 2 Reactor Coolant System Heatup Limitations

]

Crkicality Criticality 60HU umk 100 HU Unit Hydressasic leak Test T P T P T P T P T P 85 424.16 2% 0.00 85 392.65 256 0.00 236 2000 3

j 90 424.16 256 424.16 90 392.65 256 392.65 256 2485 i 95 424.16 2% 424.16 95 392.65 256 392.65 i 100 424.16 2% 424.16 100 392.65 2% 392.65 l 105 424.16 256 424.16 105 392.65 256 392.65 '

110 424.16 256 424.16 110 392.65 256 392.65 l 115 426.05 256 426.05 115 392.65 256 392.65 1 120 430.17 256 430.17 120 392.65 256 392.65 i 125 436.54 256 4%.54 125 392.65 256 392.65 130 444.80 256 444 80 130 392.91 256 392.91 135 455DI 256 455.01 135 395DI 256 395.01 140 466.83 256 466.83 140 398.78 2% 398.78 145 480.60 256 480.60 145 404.26 256 404.26 150 4 %.06 256 4 %.06 150 411.25 2% 411.25

!$5 513.18 256 513.18 155 420.00 256 420.00 160 532.19 256 532.19 160 43037 256 43037 165 553D6 2% 553.06 165 442.41 256 442.41 170 575.69 256 575.69 170 456.11 256 456.11 175 600.46 256 600.46 175 471.42 256 471.42 180 627.17 256 627.17 ISO 488.61 256 488.61 l 185 656.06 256 656.06 185 507.64 256 507.64 l 190 687.47 256 687.47 190 528.48 256 528.48 195 721.18 256 721.18 195 551.45 2% 551.45 200 757.46 256 757.46 200 576.37 256 576.37 205 796.74 256 7 %.74 205 603.64 256 603.64 )

210 838.85 256 838.85 210 633.15 256 633.15 215 884.12 256 884.12 215 665.08 256 665.08 220 932.78 260 932.78 220 f'9.80 260 699.80 225 985.00 265 985.00 225 731.19 265 737.19 230 1040.94 270 1040.94 230 777.51 270 777.51 235 1101.29 275 1101.29 23', 820.97 275 820.97 240 1165.91 280 1165.91 240 867.77 280 867.77 245 1235D2 285 1235.02 245 918.16 285 918.16 250 130937 290 130937 250 972.28 290 972.28 255 1388 91 295 1388.91 255 1030.47 295 1030.47 260 1474.02 300 1474.02 260 1092.78 300 1092.78 265 1565.15 305 1565.15 265 1159.94 305 1159.94 270 1662.80 310 1662.80 270 1231.65 310 1231.65 275 176731 315 176731 275 1308.88 315 1308.88 280 1878.79 320 1878.79 280 1391.50 320 1391.50 285 1997.96 325 1997.96 285 1479.91 325 1479.91 290 2125D7 330 2125.07 290 1574.56 330 1574.56 295 2260.56 335 2260.56 2 95 1675.71 335 1675.71 300 240$D7 340 2405 27 300 1783.88 340 1783.88 305 189934 345 1899.34 310 2022.83 350 2022.83 315 215430 355 215430 320 2294.29 360 2294.29 4

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT 2500 f

2250 Y

2000 1750 Unacceptable Opersson

- 1500 1250

- Acceptable operamon 1000 ,

i 750 J

500 l

250 m/

0 0 50 100 150 200 250 300 350 400 450 500 Indicated Temperature (*F) l MATERIAL BASIS l Copper Corsent: Answned . NAWT%

(Asud 0.05 WT%)

RTginelet: Aamenad .NA T (Askal* 501)

RTg At 18 EPPt 9 1MT.1121 e 3/4T.641 Figure 2.1-2 Unit 2 Reactor Coolant System Cooldown Limitations (Cooldown Rates up to 100 F/hr) 0 Applicable for the First 16 EFPY (With Margins of 10 F and 60 psig for Instrumentation Errors and Margin of 74 psig for Pressure Difference Between Pressure Instrumentation and Reactor Vessel Beltline Region).

5

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT i Table 2.1-2 Data Points for Unit 2 Reactor Coolant System Cooldown Limitations Stoney Staes 20 CD 40 CD 60CD 100 CD l T P T P T P T P T P '

80 43936 80 399.79 80 359.43 80 31838 80 23434 B5 448.29 85 400.97 85 369.02 85 328.62 85 246.12 90 457.67 90 418.74 90 379.44 90 339.65 90 258.63 I 95 467.65 95 42939 - 95 390.70 95 351.61 95 272.23 100 478.50 100 440.83 100 402.83 100 364.49 100 286.85 105 487DO 105 453.15 105 415.82 105 378.33 105 302.77 110 487A0 110 46633 110 429.91 110 39334 110 319.90 115 48720 115 480.63 115 445.13 115 409.57 115 338.53 120 487.00 120 487D0 120 46138 120 426.95 120 350.64 125 487D0 125 487D0 125 479.04 125 445.84 125 380.31 130 487D0 130 487D0 130 487D0 130 466.05 130 403.00 135 487D0 135 487D0 135 487D0 135 487D0 135 429.09 140 487D0 140 487D0 140 487DO 140 487D0 140 456.47 140 600.06 140 569.93 140 540.48 140 511.52 145 485.97 145 620.72 145 592.17 145 564.10 145 537D4 150 517.75 150 643.08 150 615.87 150 589.70 150 56435 155 552.20 155 666.94 155 641.59 155 617D9 155 593.97 160 589.23 100 692.76 leo 669D5 160 646.72 160 625.70 165 629.17 165 72036 165 698.77 165 678.52 165 659.89 170 672.20 110 750.14 170 730.61 170 712.66 170 696.86 175 718.62 175 782D7 175 764.00 175 749.61 175 73637 180 768.61 le 81632 180 001.53 180 789.20 180 779.25 185 822.54 185 853D9 185 841.28 185 831.83 185 825.27 190 880.52 190 892.81 190 883.51 190 877.63 190 874.70 195 935.33 195 929.55 195 926.94 195 927.94 23 980.99 200 978.69 200 979.87 205 1030 26 210 1082.72 215 1139.08 2 2 1199.92 225 1265DI 230 1334/76 235 1409.74 i 240 1490.05 l 245 1576.15 250 166831 1 i

255 1767.04 260 1872.77 265 1985.79 )

210 2l06.52 275 2235.61 280 2373D8 6

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT 800 -

780 760

^ # .

(222,726) (350,726) 720 x

700

/

> 680 660 g j 640 620 /

/

1600580 -

560 g

/

ew '

520 (70[I 50 100 150 200 250 300 350 TRTD - Auctioneered Low Measured RCS Temperature ('F)

Figure 2.2-1 Unit 2 Maximum Allowable Nominal PORV Setpoint for the Cold Overpressure Protection System.

7

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT  !

Table 2.2-1 Data Points for Unit 2 PORV Setpoints 1

0 l Temperature ( F) Pressure (psig) )

70 516 100 518 120 522 150 547 160 560 200 642 210 675 222 726 350 726 i 8

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT 3.0 Supplemental Data Tables Table 3.0-1 is a comparison of the measured surveillance material 30 ft-lb transition temperature shifts and upper shelf energy decreases with Regulatory Guide 1.99, Revision 2 predictions.

Table 3.0-2 shows the calculation of the surveillance material chemistry factors using surveillance capsule data. Ilowever, since there has been only one surveillance capsule removed from the Vogtle Unit 2 reactor vessel. this table has been intentionally left blank.

Table 3.0-3 provides the unirradiated Vogtle Unit 2 reactor vessel toughness data. The bolt-up temperature is also included in this table.

Table 3.0-4 provides a summary of the fluences used in the generation of the heatup and cooldown curves.

Table 3.0-5 provides a summary of the adjusted reference temperatures (ARTS) of the '

Vogtle Unit 2 reactor vessel beltline materials at the 1/4-T and 3/4-T locations for 16 EFPY.

Table 3.0-6 shows the calculation of the ART at 16 EFPY for the limiting Vogtle Unit 2 reactor vessel material lower shell plate B8628-1).

Table 3.0-7 provides a summary of the fluences used in the PTS evaluation.

Table 3.0-8 provides RTers values for Vogtle Unit 2 for 32 EFPY. ,

i Table 3.0-9 provides RTns values for Vogtle Unit 2 for 48 EFPY.

i 4

1 9

1 VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT ,

l I

l Table 3.0-1 Comparison of the Vogtle Unit 2 Surveillance Material 30 ft-Ib Transition Temperature Shifts and Upper Shelf Energy Decrease with Regulatory Guide 1.99 Revision 2 Predictiohs I

30 fi-lb Transition Upper Shelf Energy Fluence Temperature Shifi Decrease ]

(x 10" n/cm:'

Predicted Measured Predicted Measured l Material Capsule E > 1.0 MeV)

F) ("F) O'd N I Lower Shell Plate B8628-l U 0.444 24 0 16 0 (l.ongitudinal)

Lower Shell Plate B8628-1 U 0.444 24 0 16 0 (Transverse)

Weld Metal U 0.444 28 0 16 0 liAZ Metal U 0.444 - 0 -

0 (a) Based on Regulatory Guide 1.99, Revision 2, methodology using mean wt. % values of Cu and Ni.

l l-10

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT- l Table 3.0-2M i

j Vogtle Unit 2 Calculation of Chemistry Factors Using Surveillance Capsule Dath

]

Material Capsule Fluence (O FP" ARTsor FF* ARTsor FF2 j - (n/cm2, ("F) ("F)

E > 1.0 MeV) 4 l

! Sum: ,

, Chemistry Factor = l k Weld Metal i

l

Sum

Chemistry Factor =

a (a) Fluence Factor (FF) per Regulatory Guide 1.99, Revision 2, is denned as FF = f28"""'"8 0 ,

(*) This table was intentionally left blank pending completion of the evaluation of the second surveillance capsule.

I I

1 i

)

. _ _ . . _ . . , . _ _ _ . - _ m . . _ . _ . . - _ , , _.._w . . . . ..~m.__-m.m.u-.. 2 u....._ - a n=

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT l

l Table 3.0-3 J Vogtle Unit 2 Reactor Vessel Toughness Table (Unirradiated) '

Material Description Cu (%) Ni (%) Initial RTsnr ( F)*

Closure Head Flange -- --

10 i Vessel Flange -- --

-60'4 ,

I Intermediate Shell Plate R4-1 0.06 0.64 10 j intermediate Shell Plate R4-2 0.05 0.62 10 Intermediate Shell Plate R4-3 0.05 0.59 30 Lower Shell Plate B8825-1 0.05 0.59 40 Lower Shell Plate R8-1 0.06 0.62 40 Lower Shell Plate B8628-1 0.05 0.59 50 Longitudinal Welds 0.07 0.13 -10 Circumferential Weld 0.06 0.12 -30 (a) The average values of copper and nickel content.

(b) Initial RTw, values are measured values.

(c) These values are used for considering flange requirements for the heatup/cooldown curves. Per the methodology given in WCAP-14040, Revision I, the minimum boltup temperature is 60 F.

Table 3 0-4 Vogtle Unit 2 Reactor Vessel Surface Fluence Values at 16 EFPY (Fluence Based on E > 1.0 MeV)

Azimuthal 0" 15  ! 25 35 45 Surface 8.99 E 418 1.34 E+ 19 1.52 E+ 19 1.24 E+ 19 1.42 E+ 19 12

. . - . - . - . .- _ _ - -= . - . _ . . . - . ~ - - . - -.. . . . . . _ . . . . .. .

VOGTLE Et,ECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT Table 3.0-5 Summary of Adjusted Reference Temperatures ( ARTS) for the Vogtle Unit 2 Reactor Vessel Beltline Materials at the 1/4-T and 3/4-T Locations for 16 EFPY' 16 EFPY ART"'

Component i/4-T( F) 3/4 T( F)

Intermediate Shell Plate R4-1 80 61 Intermediate Shell Plate R4-2 . 70 53 ,

intermediate Shell Plate R4-3 90 73 Lower Shell Plate B8825-1 100 83 Lower Shell Plate R8-1 110*' 91 Lower Shell Plate B8628-1 110** 93*'

Longitudinal Welds 81 55 Circumferential Weld 54 29 (a) The ARTS presented here are based on the peak reactor vessel surface fluence of 1.52 x 10 n/cm 3 (E > l.0 MeV) at 16 EFPY, w hich is conservative for the longitudinal weld seams.

(b) These ART s alues are used to generate the heatup and cooldown curves.

13 l

)

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 j PRESSURE AND TEMPERATURE LIMITS REPORT l

i Table 3.0-6 Calculation of Adjusted Reference Temperature at 16 EFPY for the Limiting Vogtle Unit 2 Reactor Vessel Material (Lower Shell Plate B8628-1)

Parameter ART Value Operating Time 16 EFPY Material B8628-1 B8628-1 Location 1/4-T 3/4-T Chemistry Factor, CF ("F) 31 31 j Fluence

  • 10'" nicm (E > 1.0 MeV), f* 0.9057 0.3215 l

Fluence Factor. FF*' O.972 0.688  !

l ARTsnr = CF x FF,("F) 30 21.5 ]

Initial RTsor, I ("F) 50 50 1

Margin, M ("F)"' 30 21.5 I ART = 1 -(CF x FF) + M ("F) I10 93 per Regulatorv Guide 1.99. Revision 2 (a) Fluence, f, is based upon f ,,,(10"' n!cm:, E > 1.0 MeV) = 1.52 at 16 EFPY. The Vogtle Unit 2 reactor vessel wall thickness is 8.625 inches at the beltline region.

)

(b) Fluence Factor (FF) per Regulatory Guide 1.99, Revision 2, is defined as FF = f' :' ""'5 0 (c) Margin is calculated as M = 2(o,: + o2)" The standard deviation for the initial RTsnr margin term, o,, is 0 "F since the initial RTsor is a measured value. The Standard deviation for ARTsor term o,, is 17 "F for the plate, except that o, need not exceed 0.5 times the mean value of ARTsm.

I l

1 l

14

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT Table 3.0-7 Neutron Exposure Projections"' at Key Locations on the Vogtle Unit 2 Pressure Vessel Clad / Base Metal Interface EFPY 0" 15 25 35 45" 32 1.80 2.69 3.04 2.47 2.84 48 2.70 4.05 4.56 3.69 4.26 (1) Fluence in 10 n/cm:(E > l.0 MeV).

15

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT Table 3.0-8 RTm Values for Vogtle Unit 2 for 32 EFPY Material CF Surface Fluence FF aRTyor i M RTp13  !

("F) (n/cm2, (CF x FF) ("F) ( F) ( F)

E > 1.0 MeV) ("F)

Inter. Shell Plate 37 3.04 x 10 l.29 47.7 10 34 92 R4-1 Inter, Shell Plate 31 3.04 x 10* l.29 40.0 10 34 84 R4-2 Inter. Shell Plate 31 3.04 x 10" l.29 40.0 30 34 104 R4-3 Lower Shell Plate 31 3.04 x 10 l.29 40.0 40 34 114 B8825-1 Lower Shell Plate 37 3.04 x 10 l.29 47.7 40 34 122 R81 Lower Shell Plate 31 3.04 x 10 l.29 40.0 50 34 124 B8628-l Longitudinal 47 3.04 x 10 l.29 60.6 -10 56 107 Weld Circumferential 43 3.04 x 10"' l.29 55.5 -30 56 82 Weld

&c=.

(1) RTris values were calculated usmg the peak 32 EFPY vessel clad / base metal interf ace fluence of 3.04 x 60"'

nicm:(E > l.0 MeV), which is conservative for the longitudinal weld seams (See Table 3.0-7).

4 4

16

VOGTLE ELECTRIC GENERATING PLANT (VEGP) UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT ,

Table 3.0-9 RT,,r, Values for Vogtle Unit 2 for 48 EFPY .

Material CF Surface Fluence FF 4RTwor i M RTpts

( F) (n/cm 2, (CF x FF) ("F) ( F) ( F)

E > l.0 MeV) (oF)

Inter. Shell Plate 37 4.56 x 10 l.384 51.2 10 34 95 1 R4-1 Inter. Shell Plate 31 4.56 x 10 l.384 42.9 10 34 87 R4-2 Inter. Shell Plate 31 4.56 x 10 l.384 42.9 30 34 107 R4 3 Lower Shell Plate 31 4.56 x 10 l.384 42.9 40 34 117  :

B8825-1 Low er Shell Plate 37 4.56 x 10" l.384 51.2 40 34 125 R8-1 Lower Shell Plate 31 4.56 x 10 l.384 42.9 50 34 127 B8628-1 Longitudinal 47 4.56 x 10 l.384 65.0 -10 56 til Weld Circumferential 43 4.56 x [0 l.384 59.5 30 56 86 Weld (1) R T,,n values were calculated using the peak 48 EFPY vessel clad base metal interface fluence of 4.56 x 10"'

n!cm (E > l .0 MeV), which is conservative for the longitudinal weld seams (See Table 3.0-7).

I I

a 17

VOGTLE ELECTRIC GENERATING PLANT (VEGP)- UNIT 2 PRESSURE AND TEMPERATURE LIMITS REPORT 4.0 Reactor Vessel Material Surveillance Program The reactor vessel material surveillance program is in compliance wi,th 10 CFR 50, Appendix II, and is described in section 16.3 of the VEGP FSAR. The withdrawal schedule is presented in FSAR table 16.3-3. The Unit 2 surveillance capsule reports are as follows:

1. WCAP-13007, August 1991," Analysis of Capsule U From the Georgia Power Company Vogtle Electric Generating Plant Unit 2 Reactor Vessel Radiation Surveillance Program."

5.0 Reactor Vessel Surveillance Data Credibility This discussion is not currently applicable to Unit 2 since the analysis of the second surveillance capsule is not complete at this time.

6.0 References

1. WCAP-14040, Revision 1. December 1994, " Methodology Used to Develop Cold Overpressure Mitigating System Setpoints and RCS Heatup and Cooldown Limit Curves," as approved by the NRC by letter dated October 16,1995 (TAC M91749).
2. Louis L. Wheeler to C. K. McCoy, dated June 8,1995, " Issuance of Amendments -

Vogtle Electric Generating Plant, Units 1 and 2 (TAC Nos. M90966 and M90967)."

I8

'aArn w We,e -W=eks--1s-4 w3.-Wm.>m g,.,A4- OmAA m. && s&- 4 6s'-- 4K-4,4.4.-- -,,ua 4SnAA> adu L-W-t _

Ab,M45.- p*,6=Aa asAa-e3 M+m-M-a3s,W a i

)

Enclosure 3

e ///J//e/it/m h/At /4ni/r #he Rep:rting Requirements Lc V-0Y7/-B . iWildlimpkenW/14 of /AeJTt/ ovl// be 5.6

' subs,l/W 4 Me NK Atprfor turira onof '

Jpproval. Subse 5.6 Reporting Requirements}ywMfteviJinn esi//bc {\

w, mge,g#idu/ pr/er ,

a y 5.6.6 Reactor Coolant System (RCS) PRESSURE AND TE PERATURE LIMITS REPORT (PTLR) (continued) 4 testing as well as heatup and cooldown rates shall be established and documented in the PTL for the following: '

INSEP_T 2,

[TM k.d-; . ;dui speuiim.una J.. ""! pr :: r: M

?_ g ,,, , ; ,, u,, ,,n u, , , ,_s , ,,, j:.dc;,,; , ; _

~

r D. The analytical methods used to det mine the RCS pressure and temperature limits shall be th se previously reviewed and approved by the NRC, specifi 11y those described in 4k

' M L.t ; Scu : t:: D i .tif,, J.: F"" :t !' :;;r: 2 6:"-^a+ by 6tc.]

c. The PTLR shall be provide o the NRC upon issuance for each reactor vessel fluency riod and for any revision or )

i supplement thereto.

N eviewers' Notes: The methodology for the calculation of the P-T

/

1 ts for NRC approval should include the following provision .

1. T methodology shall describe how the neutron flue is calc ted (reference new Regulatory Guide when i ued).
2. The React Vessel Material Surveillance Pr am shall comply with endix H to 10 CFR 50. The eactor vessel material irradi ion surveillance spec n removal schedule shall be provided, long with how t specimen examinations shall be used to upd the PTLR rves.
3. Low Temperature Overpress rotection (LTOP) System lift 1

setting limits for the Po r erated Relief Valves (PORVs),

developed using NRC-ap oved me dologies may be included i in the PTLR.

4. The adjusted r erence temperature (AR or each reactor beltline ma ial shall be calculated, acc nting for {

radiatio mbrittlement, in accordance with ulatory Guide '

l.99, vision 2.

5. T limiting ART shall be incorporated into the calc tion of the pressure and temperature limit curves in accorda i

with NUREG-0800 Standard Review Plan 5.3.2, Pressure-Temperature Limits.

geidim .1  %

/",h;cA P -Noyo fee &clolog, De eenher C IfPf,

( U. sed.to Devel*P old GNerpressore

-' ppy.,g i ,. i m pi ing Spafem # Seff ein 3 M AcS Hee.kupo.ud 0celdown dvd 1 0.urve',as appearec/)y //;e NgG be, /e //rf c/ad:c/ (continued)

Mer /C, Ins (7"hc M 917%).

WOG STS 5.0-21 ' Rev. 11/16/94 i

__.l

4 CHAPTER 5.0 ADMINISTRATIVE CONTROLS INSERTS INSERT 21  ;

TO PAGE 5.0-21 5.6.6 PTLR LCO 3.4.3 "RCS Pressure and Temperature Limits" LCO 3.4.12 " Cold Overpressure Protection Systems" l

l

-i

)

I l

i i

. . _ . . _ -

Retrieved from "https://kanterella.com/w/index.php?title=ML20100B934&oldid=3483939"