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TRAINING

Safety Integrity Level (SIL) Assessment

Training Objectives

This course aims to provide the basic knowledge and understanding for professionals who work in the chemical, petrochemical and process industries in order to assess the SIL within the scope of the standards IEC 61508 e IEC 61511.

The chemical industry relies upon safety systems to keep the operation and to protect the assets. In this manner, while it is necessary to achieve the operation effectiveness and to reduce the number of any spurious shut-down, it is also necessary to reach an adequate safety level. According to IEC 61508 e IEC 61511, the specification of these safety systems must assure the required reliability in order to reduce the risk to a tolerable level, namely, the safety function must have an allowable limit for the probability of failure on demand (PFD) or probability of failure per hour (PFH).

Training Subjects

• Safety, reliability and risk
• Functional safety and the standards IEC-61511e IEC-61508
• Safety integrity level (SIL) concept and the allowable probability of failure
• Determination of safety integrity level (SIL) required
• Frequency, severity, vulnerability, protection and risk graphs
• Classification of the safety instrumented systems (SIS) in regard to spurious failures
• Reliability of pieces of equipment, devices, components, instruments and plant main items
• Classificação das falhas
• Determination of safety integrity level (SIL) available
• Fault tree analysis (FTA)
• Available sources for the required data
• Probability of human error
• Case studies