SILbestemmelse

SILbestemmelse, also known as the "SIL determination" or "SIL assessment," is a process used in the field of functional safety to determine the Safety Integrity Level (SIL) of a safety function within a system. The SIL is a measure of the risk reduction provided by the safety function, and it is used to classify the required performance of the safety function. The SIL determination process involves several steps, including hazard identification, risk assessment, and the allocation of safety functions to the appropriate SIL.

The SIL determination process is typically carried out in accordance with international standards such as IEC 61508, which provides a generic approach to the functional safety of electrical/electronic/programmable electronic safety-related systems. The standard defines four SIL levels, ranging from SIL 1 (lowest risk reduction) to SIL 4 (highest risk reduction), with SIL 4 being the most stringent.

The SIL determination process is crucial for ensuring that safety functions are designed and implemented to an appropriate level of performance, thereby reducing the risk of harm to people, property, or the environment. It is an essential part of the overall functional safety management system and is used to guide the design, implementation, and maintenance of safety-related systems.