ML20064G146
| ML20064G146 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 01/05/1983 |
| From: | ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20064G123 | List: |
| References | |
| NUDOCS 8301110336 | |
| Download: ML20064G146 (3) | |
Text
TABLE 4.3-1 REACTOR PROTECTION INSTRUMENTATION SURVEILLANCE REQUIREMENTS Channel Modes in Which Channel Channel Functional Surveillance Functional Unit Check Calibration Test Required 1.
Manual Reactor Trip N.A.
N.A.
S/U (1)
N.A.
2.
Linear Power Level - High S
D(2,4),
M (10) 1, 2 M(3,4),
Q(4) 3.
Logarithmic Power Level - High S
R(4)
M and S/U 1;2,3,4,5 (1)(10) and
- 4.
Pressurizer Pressure - High S
R M (10) 1, 2 5.
Pressurizer Pressure - Low S
R M (10) 1, 2 and
- 6.
Containment Pressure - High S
R M (10) 1, 2 7.
Steam Generator Pressure - Low S
R M (10) 1, 2 and
- 8.
Steam Generator Level - Low S
R M (10) 1, 2 9.
Local Power Density - High S
0(2,4),
M, R(6)(10) 1, 2 R(4,5)
S(7),D(2,4),
M, R(6)(10) 1, 2 M(8), R(4,5)
- 11. Steam Generator Level - High S
R M (10) 1, 2
- 12. Reactor Protection System N.A.
N.A.
M (10) 1, 2 and
- Logic
- 13. Reactor Trip Breakers N.A.
N.A.
M (10) 1, 2 and *
- 14. Core Protection Calculators S, W(9)
D(2,4),
M, R(6)(10) 1, 2 R(4,5)
- 15. CEA Calculators S
R M, R(6)(10) 1, 2 ARKANSAS - UNIT 2 3/4 3-7 Amendment No.
8301110336 830105 yDRADOCK 05000368 PDR
TABLE 4.3.-1 (Continued)
TABLE NOTATIONS With reactor trip breakers in the closed position and the CEA drive system capable of CEA withdrawal.
(1)
If not performed in previous 7 days.
(2)
Heat balance only (CHANNEL FUNCTIONAL TEST not included), above 15% of RATED THERMAL POWER; adjust the Linear Power Level signals and the CPC addressable constant multipliers to make the CPC AT power and CPC nuclear Power calculations agree with the calorimetric calculation if absolute difference is >2%.
During PHYSICS TESTS, these daily calibrations may be suspended provided these calibrations are performed upon reaching each major test power plateau and prior to proceeding to the next major test power plateau.
(3)
Above 15% of RATED THERMAL POWER, verify that the linear power subchannel gains of the excore detectors are consistent with the values used to establish the shape annealing matrix elements in the Core Protection Calculators.
(4)
Neutron detectors may be excluded from CHANNEL CALIBRATION.
(5)
After each fuel loading and prior to exceeding 70% of RATED THERMAL POWER, the incore detectors shall be used to determine the shape annealing matrix elements and the Core Protection Calculators shall use these elements.
(G)
This CHANNEL FUNCTION TEST shall include the injection of simulated process signals into the channel as close to the sensors as practicable to verify OPERABILITY including alarm and/or trip functions.
(7)
Above 70% of RATED THERMAL POWER, verify that the total RCS flow rate as indicated by each CPC is less than or equal to the actual RCS total flow rate determined by either using the reactor coolant pump differential pressure instrumentation (conservatively compensated for measurement uncertainties) as by calorimetric calculations (conservatively compensated for measurement uncertaintles) and if necessary, adjust the CPC addressable constant flow coefficients such that each CPC indicated flow is less than or equal to the actual flow rate.
The flow measurement uncertainty may be included in the BERR1 term in the CPC and is
[
equal to or greater than 4%.
i (8)
Above 70% of RATED THERMAL POWER, verify that the total RCS flow rate as indicated by each CPC is less than or equal to the actual RCS total flow rate determined by calorimetric calculations (conservatively compensated for measurement uncertainties).
ARKANSAS - UNIT 2 3/4 3-8 Amendment No. 24
=
(9)_ -
The correct values of addressable constants (See Table 2.2-2) shall be verified to be' installed in each OPERABLE CPC.
(10) -
Channel Functional Tests for the noted items shall not be conducted for period January 1, 1983, through January 31, 1983, inclusive.
Absence of the Channel Functional Test during this period shall not (in itself) render the PPS Channels inoperable.
i ARKANSAS - UNIT 2 3/4 3-9 Amendment No. 24
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