Reliability and Maintenance Modeling with Optimization

16Optimum Staggered Testing Strategy for Redundant Safety Instrumented Systems with Different Testing Intervals

Sun-Keun Seo

Dong-A University, South Korea

Won Young Yun,

Pusan National University, South Korea

CONTENTS

• 16.1 Introduction

• 16.2 PFD of Redundant Safety Instrumented Systems with 2 and 3 Units

  • 16.2.1 Optimal Staggered Testing in SIS with 1 out of 2 Structures

  • 16.2.2 Optimal Staggered Testing in SIS with 1 out of 3 Structures (Equal Testing Interval)

• 16.3 Staggered Testing Strategies with Different Testing Intervals

  • 16.3.1 Cases with Three Groups and Two Different Testing Intervals

  • 16.3.2 Cases with Three Different Testing Intervals

  • 16.3.3 Comparison between Different Testing Strategies

• 16.4 Cost Models of Staggered Testing ...