What are the SIL levels of safety ?

Safety Integrity Levels (SILs) are used to evaluate the reliability of safety systems and equipment. These levels are defined by the International Electrotechnical Commission (IEC) standard IEC 61508 and are associated with risk reduction.

SILs provide a measure of the probability that a safety system will perform its intended function when needed. The higher the SIL level, the higher the probability of the system functioning correctly.

SIL2 and SIL3 are common safety levels used in various industries, including aviation, transportation, and chemical processing. SIL2 is a lower safety level than SIL3.

SIL3 is a higher safety level than SIL2. It means that the system has a higher probability of functioning correctly and reducing risks.

In conclusion, SILs are used to evaluate the reliability of safety systems and equipment. SIL2 is a lower safety level than SIL3.