ML021010301
| ML021010301 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 03/28/2002 |
| From: | NRC/NRR/DLPM/LPD2 |
| To: | Tennessee Valley Authority |
| References | |
| TAC MB2753, TAC MB2754 | |
| Download: ML021010301 (2) | |
Text
RCS P/T Limits 3.4.9 1600 -
1500 1400 1300
.°' 1200 0.
1100
° 1000
-j LU Co 900 LU o0 800 z
600 a:LU D
5D00 3
o Co Lu cL 400-300-200-i i iIi i W [ 1-1O1 IIII-fITIF III I I I I I I I I I I 1
2 11
/1 I I I I I I I I I BROWNS FERRY UNIT 2 CURVES 1, 2, & 3 APE VAUD FOR 17.2 EFPY OF OPERAMION I1 Iyit I
I I
- - - - - - - - - - - - - - - -;-
j/jjj//jji C--
I I----
1 Curve No. 1 Minimum temperature for pressure tests such as required by ASME Section Xi.
Curve No. 2 Minimum temperature for mechanical heatup or cooldown following nuclear shutdown.
Curve No. 3 Minimum temperature for core operation (criticality).
Notes These curves include sufficient margin to provide protection against feedwater nozzle degradation. The curves allow for shifts in RTNDT of the Reactor vessel beltline materials, in accordance with Reg. Guide 1.99, Rev. 2, to compensate for radiation embrittlement for 17.2 EFPY.
.I I
I I. 1 1-1 1 11 1 1 1 11 I I I I I
. 1 *I-IJ 2 P'SIG BOLTUP 82 OF I
I I
h I /
r 7 ff _
I.
IIIILEI
-IE I IEIIEIIIIIEPE 0
lI I I I
0 100 150 200 250 MINMUM REACORVESSL METALTEUPRA1URE
)
Figure 3.4.9-1 Pressure/Temperature Limits BFN-UNIT 2 3.4-29 Amendment No. 2 275
RCS P/T Limits 3.4.9 1600 I-=
1500 2
3 -
Curve No. 1 BROWNS FERRY UNIT 3 Minimum temperature for 1 CURVES 1, 2, & 3 ARE I _
pressure tests such as required by VALID FOR 13.1 EFPY OF ASME Section Xl.
OPERATION 1300
-Curve No. 2
-_ _ _ _ _ _" _ _ r-_ I_
Minimum temperature for 1200mechanical heatup or cooldown 10--
following nuclear shutdown.
__Curve No. 3 Minimum temperature for core
- a. 1000 _
operation (criticality).
0
900 No-es sThese curves include sufficient margin to provide protection 800 _ _
against feedwater nozzle degradation. The curves allow for 700 shifts in RTNDT of the Reactor Z
vessel beltline materials, in accordance with Reg. Guide 1.99, 600
- _ r-Rev. 2, to compensate for S2-radiation embrittlement for 13.1 500-
-EFPY.
- 2) 50
- - - - - - - - - -F -
CLO _I LL 400
°00
-312P 25G BOLTUP 70 OF 200 100-I0 0
50 100 150 200 250 M INIMUM REACTOR VESSEL METAL TEMPERATURE (ff)
Figure 3.4.9-1 Pressure/Temperature Limits BFN-UNIT 3 3.4-29 Amendment No. 247-, 233