732-733 / 1143
© ABB Group
November 3, 2016 | Slide 5
When shall FSAs be performed?
Prior to the hazards being present
On identification of new hazards
Where design, development and production tools are used for
any SIS lifecycle activity
After the SIS has been designed
On completion of installation, pre-commissioning and final
validation of the SIS
Periodically during the Operation
and Maintenance Phase
When Modifications are planned
to be performed
Prior to Decommissioning of a
SIS
* All rights to copyrights, registered trademarks, and trademarks reside with their respective owners