ML20207N557
| ML20207N557 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 01/06/1987 |
| From: | WISCONSIN ELECTRIC POWER CO. |
| To: | |
| Shared Package | |
| ML20207N515 | List: |
| References | |
| NUDOCS 8701140287 | |
| Download: ML20207N557 (1) | |
Text
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TABLE 15.4.1-l'(1 of 4)
.e i
MINIMUM FREQUENCIES FOR CHECKS, CALIBRATIONS'AND TEST OF INSTRUMENT CHANNELS No.
Channel Description Check Calibrate Test Remarks 1.
Nuclear Power Range S(1)**
D(1)**
B/W(2)**
(1) Heat Balance-M*(3)**(4) Q*(3)**(4)
(2) Signal to AT; bistable action (permissive, rod stops, trips)
(3) Upper and lower chambers for axial.
off-set (4) Compare incore to excore axial flux difference.
Recalibrate if_the absolute difference is greater than or equal to 3 percent.
2.
Nuclear Intermediate Range S(1)**
N.A.
P(2)
(1) Once/ shift when in service (2) Log level;. bistable action (permissive, rod stop, trips)-
3.
Nuclear Source Range S(1)
N.A.
P(2)
(1) Once/ shift when in service (2) Bistable action (alarm, trips) l 4.
Reactor Coolant Temperature S
R B/W(1)**
(1) Overtemperature -AT (2).
(2) Overpower - AT 5.
Reactor Coolant Flow S**
R M**
Logic channel' testing for reactor trip on loss of reactor coolant flow in both loops shall be tested each refueling interval.
l 6.
Pressurizer Water Level
'S**
R M**
j 7.
Pressurizer Pressure S**
R M**
8.
4 KV Voltage N.A.
R M**
Reactor protection circuits only l
1 l
9.
Analog Rod Position S(1)**
R M**
(1) With step counters l
By means of the moveable incore detector system.
l Not required during periods of refueling shutdown, but must be performed prior to starting up if l
it has not been performed during the previous' surveillance period.
Tests of permissive and low power trip bistable setpoints which cannot be done during power operations shall be conducted l
prior to startup if not done in the previous two weeks.
l 8701140287 870106 PDR ADOCK 05000266 P.
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