Availability Analysis of the Ventilation Stack CAM Interlock System
Ventilation Stack Continuous Air Monitor (CAM) Interlock System failure modes, failure frequencies and system availability have been evaluated for the RPP. The evaluation concludes that CAM availability is as high as assumed in the safety analysis and that the current routine system surveillance is adequate to maintain this availability. Further, requiring an alarm to actuate upon CAM failure is not necessary to maintain the availability credited in the safety analysis, nor is such an arrangement predicted to significantly improve system availability. However, if CAM failures were only detected by the 92-day functional tests required in the Authorization Basis (AB), CAM availability would be much less than that credited in the safety analysis. Therefore it is recommended that the current surveillance practice of daily simple system checks, 30-day source checks and 92-day functional tests be continued in order to maintain CAM availability.
- Research Organization:
- LMHC (US)
- Sponsoring Organization:
- ENVIRONMENTAL MANAGEMENT (US)
- DOE Contract Number:
- AC27-99RL14047
- OSTI ID:
- 801135
- Report Number(s):
- RPP-5453, Rev.0; EDT-628638; TRN: US0300096
- Resource Relation:
- Other Information: PBD: 5 Jan 2000
- Country of Publication:
- United States
- Language:
- English
Similar Records
Operability of the Ventilation Continuous Air Monitor (CAM) Interlock Analysis of Proposed Upgrade to the 241AW Farm Primary Exhauster CAM System
HEPA Filter Differential Pressure Fan Interlock System Functional Requirements and Technical Design Criteria