ML19345E988
| ML19345E988 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 01/30/1981 |
| From: | GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML19345E986 | List: |
| References | |
| NUDOCS 8102060487 | |
| Download: ML19345E988 (5) | |
Text
.
O NRC DUCKET 50-366 OPERATING LICENSE NPF-5 EDdIN I.
HATCH NUCLEAR PLANT UNIT 2 PROPOSED AMENDMENT TO TECHNICAL SPECIFICATIONS The proposed amencnent to the Unit 2
Technical Specifications (Appendix A to Operating License NPF-5) would be incorporated as follows:
REMOVE PAGE INSERT PACE 3/4.2-6 3/4.2-6 3/4.2-7 3/4.2-7 3/4.2-7a 3/4.2-7b
\\
8102060 32
POWER DISTRIBUTION LIMITS 3/4.2.3 Miti! MUM CRITICAL POWER RATIO LIMITING CONDITION FOR OPERATION 3.2.3 The MINIMUM CRITICAL POWER RATIO (MCPR), as a function of average scram time and core flow, shall be equal to or greater than shown in Figure 3.2.3-1 or Figure 3.2.3-2 mul tiplied by the Kr shown in Figu e 3.2.3-3, where:
0 or (Tave - TB), whichever is greater, r =
n B
rA 1.096 sec (notch 36), Specification 3.1.3.3 scram time limit to
=
h Ni y (0.059),
0.834 + 1.650 T
=
B nI t;1 i=1 nE.Ntii
=
Tave i=1 n
I Nj i=1 number of surveillance tests performed to date in cycle, n =
Nj = number of active control rods measured in the ith surveillance
- test, average scram time to notch 36 of all rods measured in the r =
g ith surveillance test, and total number of active rods measured in 4.3.C.2.a.
N
=
1 APPLICABILITY:
CONDITION 1, when THERMAL POWER > 25% RATED THERMAL POWER ACTION:
With MCPR less than the applicable limit determined from Figure 3.2.3-1 or Figure 3.2.3-2 initiate corrective action within 15 minutes and continue corrective action -
so that MCPR is equal to or greater than the applicable limit within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or reduce THERMAL POWER to less than 25% of RATED THERMAL POWER within the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
r SURVEILLANCE REQUIREMENTS s 4.2.3 The MCPR limit at rated flow shall oe determined for each type of fuel (8X8R and P8X8R) from figures 3.2.3-1 and 3.2.3-2 using a.
t 1.0 prior to the initial scram time measurements for the
=
cycle performed in accordance with Specification 4.3.C.2.a. or Hatch-Unit 2 3/4.2-6
3/4.2.3 MINIMUM CRITICAL POWER RATIO SURVEILLANCE REQUIREMENTS (Continued) b.
t as defined in Specification 3.2.3; the determination of the limit must be completed within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> of the conclusion of each scram time surveillance test required by Specification 4.3.C.2.
MCPR shall be determined to be equal to or greater than the applicable limit:
a.
At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, b.
Whenever THERMAL POWER has been increased by at least 15% of RATED THERMAL POWER and steady state operating conditions have been established, and c.
Initially and at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> when the reactor is operating with a LIMITING CONTROL R0D PATTERN for MCPR.
I s
HATCH-UNIT 2 3/4.2-7' i
i l
1.29
~~
~ - ~ ~ ~
+
1.28
- _. ---- --~
=
-:----==.._.
-.=--/_---..._.--
5,27 1.26 = = - - -. -.
7 e
~
._= d S E31 i_
S 1.25 a
2_
1.24
-.. ~
2 1.23 1.22 e-1.21
- - - - ~
c~._
=.. _.. = = _
- _.. _.. _ _ _ _... ~ _.. -.
O.0 0.2 0.4 0.6 0.8 1.0 T
MCPR LIMIT FOR 8X8R FUEL AT RATED FLOW FIGURE 3.2.3-1 1.29
.N 1.28
/
s'
- %=
1.27
- =.
1.26 Ef 1.25 Ed
~
1.24
^-
1.23 s
.s.
1.22 1.21
+
.-m mm 0.0 0.2 0.4 0.6 0.8 1.0 T
MCPR LIMIT FOR P8X8R FUEL AT RATED FLOW HATCH UNIT 2 FIGURE 3.2.3-2
4 i
1.4
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M ANUAl' FLOW CONTilOL
- 0
- s* ;-..
j.
rw
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SCOOP TUDE SETPOINT CAllDRATION
~
8
.. !:si:ii i.
N s
.i$ __ _
sd+.l.jiYi5it POSITIONED SUCil Til AT. _ _
- g#
s 1.0, MAXIMUM FLOW
= 102.5%
I
= 107.0%
i n
= 112.0%
l
= 117.0%
i y
(M
~
030 40 50 SO 70 00 00 100 110 gM Core' Flow, of Rated core Flow O
K Factor p
- m..
FIGURE 3.2.3-3 W
EEE3 u
,