Safety Integrity Level (SIL Study)

VAIL – PHA’s Safety Integrity Level (SIL) is described as a comparative level of risk-reduction offered by a safety function, or an analysis of performance required for a Safety Instrumented Function (SIF) to maintain or achieve the safety state.

The SIL module is used to facilitate the Safety Integrity Level (SIL) methodology for safety critical systems. It is a unique tool that ensures safety integrity requirements of safety functions are maintained. These requirements are allocated placements within the Electrical/Electronic/Programmable-Electronic safety-related Systems.

At Velosi, we understand that it is crucial to perform a statistical measurement of how likely a process or a system is to be operational and ready to serve the function for which it is intended, including the calculated time to its likelihood of failure. Our uniquely designed SIL study services comply with global standards – IEC-61508, IEC-61511 and ISA TR 84.00.02 – to ensure the safe and reliable operation of the plant.

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Features of VAIL – PHA’s Safety Integrity Level (SIL)

Conducts SIL assessment using either the Layers of Protection Analysis (LOPA) or Risk Graphs methodology (or both) along with Risk Matrix.
VAIL-PHA SIL software meets the requirements of IEC 61508.
Perceives dynamic changes and shows risk as well as SIL levels in the Risk Matrix.
Targets PFD calculations.
Calculates Mean Time between Failure (MTBF) and Mean Time to Repair (MTTR) along with general reliability data.
Records management of the SIL study session team.
Provides dynamic reporting.
Calculates the test interval.

SIL Deliverables

SIL Methodology
SIL Classification
SIL Verification
Safety Requirement Specification (SRS)
Safety Life Cycle Document

Safety Integrity Level analysis can be classified into 4 categories, including

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