ML20141M555
| ML20141M555 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 08/25/1992 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20141M557 | List: |
| References | |
| TAC-M83289, NUDOCS 9209010156 | |
| Download: ML20141M555 (6) | |
Text
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r INSTRUMENTATION 3/4.3.6 CONTROL R00 BLOCK INSTRUMENTATION LIMITING CONDITION FOR OPERATION 3.3.6.
The control rod block instrumentation channels shown in Table 3.3.6-1 shall be OPERABLE with their trip setpoints set consistent with the values shown in the Trip Setpoint column of Table 3.3.6-2.
APPLICABILITY: As shown in Table 3.3.6-1.
ACTION:
-With a control rod block instrumentation channel trip setpoint less a.
conservative than the value shown in the Allowable Values column of Table 3.3.6-2, declare the channel inoperable until the channel is restored-to OPERABLE status with its trip setpoint adjusted consistent with the Trip Setpoint value, b.
With the number of OPERABLE channels less than required by the Minimum OPERABLE Channels per Trip Function requirement, take the ACTION required by Table 3.3.6-1.
SURVEILLANCE REQUIREMENTS 4.3.6.1 Each of the above required control rod block trip systems and
(
instrumentation channels shall be demonstrated OPERABLE by the performance of the CHANNEL CHECK, CHANNEL FUNCTIONAL TEST and CHANNEL CALIBRATION operations for the OPERATIONAL CONDITIONS and at the frequencies shown in Table 4.3.6-1.
4.3.6.2 The provisions of Specification 4.0.4 are not applicable to the Channel Functional test surveillances for the Intermediate Range Monitors and Source Range Monitors for entry into their applicable OPERATIONAL CONDITIONS (as specified in Table 4.3.6-1) from OPERATIONAL CONDITION 1, pro"ided the surveillances are performed within 12. hours after such entry.
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o GRAND GULF-UNIT 1 3/4 3-52 Amendment No. 101
= -
g TABLE 3.3.6-1 E
o CONTROL ROD BLOCK INSTRUMENTATION E
G; MINIMUM APPLICABLE 4
OPERABLE CHANhELS OPERATIONAL 5
TRIP FUNCTION PER TRIP FUNCTION CONDITIONS ACTION 1.
ROD PATTERN CONTROL SYSTEM a.
Low Power Setpoint 2
1, 2 60 b.
High Power Setpoint 2
l#
60 2.
APRM a.
Flow Biased Neutron Flux-Upscale 6
1 61
)
b.
Inoperative 6
1, 2, 5 61 c.
Downscale 6
1 61 d.
Neutron Flux - Upscale, Startup 6
2, 5 61 mh 3.
SOURCE RANGE MONITORS gg) wy, a.
Detector not full in 4
2##
61 l
w 2**
5 62 ID) l b.
Upscale 4
2##
61 l
2**
5 62 Inoperative (b) 4 2##
61 J
c.
2**
5 62 d.
Downscale(c) 4 2##
61 l
2**
5 62
[
4.
a.
Detector not full in 6
2, 5 61 l
g b.
Upscale 6
2, 5 61 Inoperati 6
2, 5 61 e
c.
Downscale{g) g d.
6 2, 5 61 m
5.
]
?
a.
'Jater Level-High 2
1, 2, 5*
62 5
6.
REACTOR COOLANT SYSTEM RECIRCULATION FLOW
~
a.
Upscale 3
1 62 7.
REACTOR MODE SWITCH SHUTDOWN oOSITION 2
3, 4 63 I
~
TABLE 4.3.6-1 c
CONTROL ROD BLOCK INSTRUMENTATION SURVEILLANCE REQUIREMENTS c:
CHANNEL OPERATIONAL 5
CHANNEL FUNCTIONAL CHANNEL CONDITIONS FOR WHICH h
TRIP FUNCTION CHECK TEST CALIBRATION (a)
SURVEILLANCE REQUIRED
[
1.
ROD PATTERN CONTROL SYSTEM a.
Low Power Setpoint NA S/U(b),Q Q
1 2 b'.
High Power Setpoint NA S/U(D),Q Q
P' 2.
APRM a.
Flow Biased Neutron Flux-Upscale NA Q
W(I)(9), SA 1
b.
Inoperative NA S/U,Q Wg)
I, 2, 5 N
c.
Downscale NA Q
, SA 1
S /l, d ) Q Q
2, 5 g
d.
Neutron Flux - Upscale, Startup NA
'[
3.
SOURCE RANGE MONITORS di a.
Detector not full in NA S/U,W NA 2ff, 5 b.
Upscale NA S/U,W Q
2##, 5 c.
Inoperative NA S/U,W NA 2##, 5 d.
Gownscale NA S/U,W Q
2f#, 5 4.
INTERMEDIATE RANGE MONITORS a.
Detector not full in NA S/U,W Nr.
2, 5 b.
Upscale NA S/U,W Q
2, 5 c.
In< perative NA S/U,W W.
2, 5 d.
Downscalc NA S/U,W Q
2, 5 4
5.
SCRAM DISCHAR';E VOLUME a.
Water Level-High NA Q
R 1, 2, 5*
5 6.
REACTOR COOLANT SYSTEM RECIRCULATION FLOW i
F a.
Upscale NA Q
Q 1
7.
REACTOR MODE SWITCH SHUTDOWN i
L POSITION NA R
NA 3, 4 9,
I
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