SIL assignment
SIL Notes Objective : SIL assignment establishes the risk reduction needed for each process system to protect against one or more hazards, The risk reduction is calculated as the gap between the existing risk posed by the process or equipment and the risk target. Risk reduction (Layer of Protection) is provided by process and mechanical integrity, Independent Protection Layers (IPLs) and required Safety Instrumented Systems (SIS). Scope : The SIL level of each Safety Instrumented Function (SIF) is to be calculated, Design of Safety Integrated Systems is adequate to protect personnel, environment, assets, reputation and local safety against potentially hazardous situation This study only performed an assessment of the required SIL levels for each SIF/ ESD loop