ML20034G349
| ML20034G349 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 03/04/1993 |
| From: | Maine Yankee |
| To: | |
| Shared Package | |
| ML20034G347 | List: |
| References | |
| NUDOCS 9303090363 | |
| Download: ML20034G349 (3) | |
Text
b ATTACHMENT B Revised Technical Specification Pages 4.1-10 and 4.1-12.
b l
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Table 4.1-3 i
Minimum Frequencies for Checks, Calibrations and Testing of Miscellaneous Instrumentation and Controls Channel Description Surveillance Frequency Surveillance Method Function
- 1. Reed Switch Rod Check S
Compare rod position indication from the Reed Switch Position Indication Position Indication System with that of the Pulse System Counting Position Indication System whenever the reactor is critical and the plant computer is available.
- 2. Pulse Counting Rod Check S
Compare rod position indication from the Pulse Counting Position Indication Position Indication System with that of the Reed Switch System Position Indication System whenever the reactor is critical and the plant computer is.available.
[
- 3. Radiation Area
- a. Check D")
a.
Internal test signals used to check instrument
[
Monitors operation.
[
- b. Functional M")
b.
Expose the detector with either an internal or an
[
Test external radiation source or an electronic signal to
[
verify instrument operation.
[
- c. Calibrate R
c.
Exposure to known radiation source.
- 4. Emergency Plant
- a. Check D")
a.
Intornal radiation source provides continuous signal Radiation verifying instrument operations.
Containment High Range
- b. Calibrate R
b.
Exposure to known radiation source.
- 5. Environmental
- a. Check M
a.
Operational Check.
Monitors
- b. Calibrate A
b.
Verify airflow indicator.
6.
Pressurizer
- a. Check S")
a.
Comparison of independent level readings.
Level
- b. Calibrate R
b.
Known differential pressure applied to sensor.
Amendment 81,86,94 4.1-10 Ls\\93mn\\9323 m.
Table 4.1-3 (Continued)
Surveillance Channel Description Function Frequency Surveillance Method
- 13. Safety Valve Position
- a. Calibrate R
Apply known frequency to sensor.
Indicator (Acoustic Flow Sensor)
- 14. PORV Actuation Circuit
- a. Check M ") ")
a.
Bistable trip test
- b. Calibrate R
b.
Apply known pressure to sensors.
15.
Pressurizer Power
- a. Calibrate R
Apply known pressure to the pressure sensor.
Operated Relief -
Manual actuation of each PORV to verify Variable Pressure
- b. Test R".
solenoid operation Setpoint
- 16. Purge Valve Isolation on High Radiation Signal
- a. High Containment
- a. Calibrate R
Exposure to an external radiation source.
Gaseous Activity 4
- b. High Primary Vent
- b. Calibrate R
Exposure to an external radiation source.
Stack Gaseous Activity
- 17. Containment Hydrogen
- a. Check W
- a. Verify expected values on readout.
Monitors
- b. Calibrate SA
- b. Apply gasses containing known concentration of H2 with balance N2.
- 18. Radiation Process and
- a. Check 0")
- a. Internal test signals used to check Effluent Monitors instrument operation.
- b. Functional M")
- b. Expose the detector with either an Test internal or an external radiation source to verify instrument operation.
- c. Calibrate R
- c. Exposure to known radiation source.
- 19. Containment Water level
- a. Check M
- a. Compare readings of the two channels for consistency,
- b. Calibrate R
- b. Adjust indicator and verify readouts based on signals.
, Amendment No. 52, 72, 81, 83, 94 4.1-12 o
La\\93mn\\9323
.