SELECTED MAINTENANCE ACTIVITIES AND POSTMAINTENANCE TESTS
Replace switch devices (pressure,
flow, temperatures, level).
Calibrate pressure switch and verify
actuation and reset points.
Inspection mechanical joints under normal
operating or hydrostatic test pressure to
verify no leakage.
Verify, in accordance with technical
manual and technical safety specifications,
environmental qualification requirements
have not been degraded by installation or
Ensure that switch is valved in after
maintenance and that indication is as
Perform channel checks
Calibrate all channel components except
Calibrate sensor channel (complete
Test operation of trip activation device.
Calibrate in-core detector channel
NOTE: During channel calibration verify
that all automatic actuation interlock set
points and resets function properly.
Perform maintenance of radiation monitors.
1. Perform channel checks.
2. Perform source checks.
3. Test automatic functions.
4. Calibrate channel.