6.0. Fault Tolerance and Plant Ageing

There are a few relevant important points, which affect the hazard analysis and SIS. In this clause, short discussions on how fault tolerance and plant ageing affects safety systems in a plant are presented.

6.1. Fault Tolerance

In this part, basics of fault and fault tolerance vis-a-vis system requirements have discussed. Since fault tolerance is very much connected with PEs, so it is treated separately in Chapter XI.

6.1.1. Fault and Fault Tolerance

What is fault? From the system point of view, fault can be viewed some deviation from the expected behavior of the system. It is malfunction of the system. This fault may be due to human error, hardware failure, software failure, and/or design problem. Depending ...

Get Plant Hazard Analysis and Safety Instrumentation Systems now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.