What does SIL and functional safety mean to operators of rotating equipment ?

A Guide to Understanding SIL and Functional Safety

Safety Integrity Level (SIL) is an important safety indicator that has been extensively discussed, described and often misunderstood within the industry over the past years. The purpose of this article is to provide operators, reliability engineers, instrumentation engineers and department managers with a practical overview of which areas of daily business life SIL and functional safety are important.

Please note that in light of the International Electrotechnical Commission (IEC) and most other safety-relevant standards, risk is strictly defined as “Harm to Health Safety Environment” or HSE.

Potential economical losses resulting from process downtimes are often one of the justifications for the realization of process improvements. However, there are concerns in the industry that the implementation of additional and SIL-certified machinery protection may add to the nuisance trip rate.

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