ML070570519

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Technical Specifications, Issuance of Amendment No. 270 Remove Reactor Coolant System Structural Integrity Requirements
ML070570519
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 03/01/2007
From:
NRC/NRR/ADRO/DORL/LPLIV
To:
Saba F, NRR/DORL/LPL4, 301-415-1447
Shared Package
ML070570502 List:
References
TAC MD0700
Download: ML070570519 (4)


Text

SURVEILLANCE REQUIREMENTS 4.4.9'.1.1 The Reactor Coolant System temperature and pressure shall be determined to be within the limits at least once per 30 minutes during system heatup, cooldown, and inservice leak and hydrostatic testing operations.

4.4.9.1.2 The reactor vessel material irradiation surveillance specimens shall be removed and examined, to determine changes in material properties, at the intervals shown in SAR Table 5.2-12. The results of these examinations shall be used to update Figures 3.4-2A, 3.4-2B and 3.4-2C.

ARKANSAS - UNIT 2 3/4 4-23 Amendment No. 424,21-3, ,270 I

Figure 3.4-2A HEATUP CURVE - 32 EFPY REACTOR COOLANT SYSTEM PRESS URE/TEMPERATURE LIMITS 2500

-- 50 F/hr;  !

Non-Critical Core iJ

-- ~~60 F/hr -

Non-Critical Corereor 2000 70 F/hr


Non-Critical Core  ?"ý' 80 F/hrI I /Non-Critical Core I II CL 1500

" 80 F/hrFhCritical Core U)

/I / I1Acceptable I-r) Region

  • 1000

--Lowest Serv~ice Temperature, I- ~ itcality Limit =190 F 500 IMinimum Boltup "Temperat ure, 50 F 0

0 100 200 300 400 500 Reactor Coolant Temperature T., OF (Curves do not include margins for instrument uncertainties)

ARKANSAS - UNIT 2 3/4 4-24 Amendment No. 1-24,242, 270

Figure 3.4-2B COOLDOWN CURVE - 32 EFPY REACTOR COOLANT SYSTEM PRESSURE/TEMPERATURE LIMITS 2500 i i " i  ; I !1 ; . . . . . . . . . . . .I I . .I I I . .I . I .

I 11Il I 1 I M 1 1 2000 Re io Acceptable 1500 LI Lowest Service Ternperature, N 150 F A 1000 0.

500 I, I I TMinimum Boltup Temperature, 50 F I' I 0 I' I 0 100 200 300 400 500 Reactor Coolant Temperature T,, `F.

(Curves do not include margins for Instrument uncertainties)

ARKANSAS - UNIT 2 3/4 4-25 Amendment No. 4-24,242,25f, 270 I

Figure 3.4-2C INSERVICE HYDROSTATIC TEST CURVE - 32 EFPY REACTOR COOLANT SYSTEM PRESSURE/TEMPERATURE LIMITS 2500 Inservice " .

L ~Hydrostatic, i  ! ~Test F 2000 I Acceptable CL Region 1500

-Lowest Service H l 1 11 U*, Temperature, CL  :- 150 F  !

N

= 1000 U)

U, CL iý!iiiii iI I .

. I I I I I Ii i i i I I  ! [i I..!-*N..............I....I.....l i iI i I I[ I I1 500 Minimum Boltup Temperature, 50 F 0

0 100 I

200 300 400 500 Reactor Coolant Temperature T., °F (Curves do not Include margins for Instrument uncertainties)

ARKANSAS - UNIT 2 -3/4 4-26 Amendment No. 424,242,2-53, 270