Safety Integrity Levels Online (SILs)
|Duration / Programme:||Three Online Sessions 1 February, 2 February, 3 February 2022 - 10.00am - Noon (BST)|
|Price:||£525 + vat (per person)|
|BVAA Member Price:||£320 + vat (per person)|
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This course is specifically intended for valve and actuator manufacturers who are being asked to supply products with a Safety Integrity Level (SIL) capability.
Session 1 is an overview of hazards, risk and SILs to help attendees understand where a ‘SIL’ comes from and the necessity of a proper specification prior to design. Examples of safety instrumented functions in the process industry are given to illustrate the principles.
Session 2 concerns the safety-related aspects of the design of the ‘final element’ in the safety system and how to achieve the specified ‘SIL capability’. Reliability modelling, assessment and quality system requirements are all covered.
Session 3 includes an overview of the regulatory framework, IEC 61508 and related standards (such as IEC 61511) and the various approaches used to demonstrate conformity. (Session 3 may also include any remaining topics from session 2 if time did not permit them to be covered then).
The course is aimed at all those who are involved in the design and specification of valves, actuators and related accessories, such as design engineers, reliability and quality engineers, technical managers and product applications specialists.
Manuals based on the lecture slides together with supplementary information sheets are provided. Frequent question and answer sessions are included for clarification.
1. Introduction to functional safety and SILs
•Introduction to the course
•Hazards, risks, risk reduction, ALARP, safety instrumented functions (SIFs) and safety integrity levels (SILs)
•The generic safety instrumented system (SIS: sensor, logic and final element)
•Examples of SIFs
•How systems fail and the need for hardware and systematic integrity
2.Designing to achieve SIL capability
•Reliability concepts, terms and relationship with the safety application
•Subsystems, elements and their SIL-related properties (HFT, SFF and Type)
•Estimating unit failure data by failure modes and effects analysis (FMEA)
•Reliability modeling for actuated valve packages
•Proven-in-use data and justification
•Example valve/actuator functional safety datasheets
•The safety manual (failure data, assumptions, conditions and restrictions)
•The ‘Systematic Capability’ (ISO 9001-plus: lifecycle documentation, techniques and measures, functional safety management)
•Examples and walk throughs
3.Regulatory, standards and compliance
•The current regulatory position
•Standards overview (IEC 61508 and IEC 61511)
•Assessment and certification