ML20055E003
| ML20055E003 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 07/02/1990 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20055E000 | List: |
| References | |
| RTR-REGGD-01.012, RTR-REGGD-1.012 NUDOCS 9007100264 | |
| Download: ML20055E003 (2) | |
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3/4.3 INSTRUMENTATION
~ BASES 3/4.3.3 MONITORING-INSTRUMENTATION 3/4.3.3.1 RADIATION MONITORING INSTRUMENTATION The OPERABILITY of the radiation monitoring channels ensures that 1) the radiation levels are continually measured in the areas served by the individual channels and 2) the alarm or automatic action is initiated when the radiation level trip setpoint is exceeded.
3/4.3.3.2' INCORE DETECTORS The OPERABILITY of the incore detectors with the specified minimum complement of equipment ensures that the measurements obtained from use of this system accurately represent the spatial neutron flux distribution of the reactor core.
3/4.3.3.3 SEISMIC INSTRUMENTATION The OPERABILITY of the seismic instrumentation ensures that sufficient ~
capability is available to promptly determine the magnitude of' a seismic event and evaluate the response of those features important to safety. lThis capability isfrequired to permit comparison of the measured response to that used in the-design basis for the facility to determine if plant shutdown is required pursuant to Appendix "A".of 10 CFR Part 100.
The instrumentation is consistent with the recommendations of Safety Guide 12, " Instrumentation for Earthquakes," March, 1971.
3/4.3.3.4 METEOROLOGICAL INSTRUMENTATION The OPERABILITY of the meteorological instrumentation ensures that sufficient meteorological data is available for estimating potential radiation; doses to the public as a result of routine or accidental release
'of radioactive materials-to the atmosphere.
This capability is required to evaluate the need fc' initiating protective measures to protect the health and safety of the public and is consistent with the recommendations of Regulatory Guide 1.23 "Onsite: Meteorological Programs," Feburary 1972.
3/4.3.~3.5-REMOTE SHUTDOWN INSTRUMENTATION The OPERABILITY of the remete shutdown instrumentation ensures that sufficient capability is available to permit shutdown and maintenance of HOT STANDBY of the facility from locations outside of the control room. This
-capability is req'uired in the event control room habitability is lost and is consistent with General. Design Criteria 19 of 10 CFR St
.t-ARKANSAS - UNIT 2 B 3/4 3-2 Amendment No. 33
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