SIL Verification
ESC’s team of reliability engineers can assess the SIL capability of specified Safety Instrumented Functions (SIFs) using Fault Tree Analysis, Reliability Block Diagrams (RBDs) or Failure Modes Effects and Criticality Analysis (FMECA).
Assessments of proposed or existing Safety Instrumented Functions (SIFs) can be conducted using failure rate data from client/vendors, or from ESC’s own database. This can be used to confirm, or otherwise, hardware reliability and compliance with safety requirements parameters such as Probability of Failure on Demand (PFD) and failure rate.
The SIL verification process includes assessment against IEC 61508 / IEC 61511 architectural constraints in terms of hardware fault tolerance, by calculation of Safe Failure Fraction (SFF).
Our reliability experts can also provide plant availability and reliability studies using similar techniques.
