Functional Safety Assessment (FSA)
A Functional Safety Assessment is defined as; systematic and independent examination to determine whether the procedures specific to the functional safety requirements to comply with the planned arrangements are implemented effectively and are suitable to achieve the specified objectives.
Defines compliance with the standard as: “to conform to this standard it shall be demonstrated that all the relevant requirements have been satisfied to the required criteria specified (for example safety integrity level) and therefore, for each clause or sub-clause, all the objectives have been met.”
Why conduct FSA
FSA is the process of performing independent reviews and audits at predefined stages of the Safety Life-cycle. FSA is the activity of ensuring the quality of execution is adequate and as per the requirements of international standards such as IEC 61508 and IEC 61511.
FSAs may conducted at the following time:
– After the hazard and risk assessment has been carried out, the required protection layers have been identified and the Safety Requirement Specification (SRS) has been developed;
– After the Safety Instrumented System (SIS) has been designed;
– After the installation, pre-commissioning and final validation of the SIS has been completed and operation and maintenance procedures have been developed;
– After gaining experience in operation and maintenance;
– After modification and prior to decommissioning of a SIS.
FSES can provide independent Functional Safety Assessments to judge if the functional safety and safety integrity has been achieved by the Safety Instrumented System in accordance with IEC 61511. For more information, or to discuss your Functional Safety needs, please contact us using the form below or email [email protected] .