SSL considers functional safety to be a core activity of its business. The following table lists our experience and strengths across the functional safety life-cycle (IEC61511).
IEC61511 | SSL Profile | Clients |
Hazard ID | Hundreds of reviews facilitated across several sectors. See table 2 for more detail. Training and qualification of leaders and participants across NZ. | All MHF & Petroleum Clients |
SIL Determination & Risk Assessment | Hundreds of scenarios assessed to determine SIL levels using LOPA and Risk Graph techniques. | All MHF & Petroleum Clients |
SIS Requirements Specification (SRS) | Development of several company standards and specification of numerous safety functions. | Ballance Agri-nutrients |
Design | Use of SIL Solver/ ExSILEntia to design and verify the design in accordance with the SRS | Ballance Origin Evonik STOS Todd Energy Vector Contact Energy Top Energy |
Operation and Maintenance | Operational procedures (bypass, proof testing) to satisfy compliance with standards. | Ballance Agri-nutrients |
Modifications | Design of MoC systems for plant and software changes | MoC audits of many companies |
Functional Safety Management Plan | Developed several functional safety management systems and audited many companies against the IEC standard. | Ballance |
Functional Safety Assessmentsn/ Audits | From Functional Safety Assessment of individual SIL functions through to full Functional Safety Management System Audits | Refining NZ |
