Implementing IEC 61508 for Qualification of safety-instrumented systems for submergible tube bridges

Abstract

This thesis aims to contribute to the currently on-going work of implementing a technology qualification programme in the NPRA, by proposing a qualification framework for safety-instrumented systems related to the submerged floating tube bridge concept. The concept is being addressed as a solution for the crossing of Bjørnafjorden. The framework aims to draw on several different approaches, and implement principles from RAMS engineering and IEC 61508. Focus has been placed on the transferability of a framework for qualification of safety-instrumented systems, and a framework for qualification of entire bridge concepts.