An unavailability model for errors made during surveillance testing
Conference
·
OSTI ID:10102483
Periodic testing or examination is conducted routinely for some critical standby equipment or instrumentation, in an attempt to increase its availability. This is often called ``surveillance testing.`` There is a finite probability that tested equipment will be left in a degraded or nonfunctioning state because of an error, and this important type of human error is often called a ``restoration error`` in probabilistic safety analysis (PSA) parlance. One would expect a trade-off between the reduction in unavailability gained by a surveillance testing and the increase in unavailability incurred by surveillance testing errors. In this paper, a mathematical model of the effect of errors made during surveillance testing on equipment unavailability is described.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10102483
- Report Number(s):
- LA-UR--93-3423; CONF-940312--13; ON: DE94000816; IN: N--6-93-R142
- Country of Publication:
- United States
- Language:
- English
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