OVE EN 61511-3: 2019现行
Functional safety - Safety instrumented systems for the process industry sector - Part 3: Guidance for the determination of the required safety integrity levels (IEC 61511-3:2016) (english version)
出版：Osterreichisches Normungsinstitut/Austrian Standards
专家解读视频
This part of IEC 61511 provides information on: – the underlying concepts of risk and the relationship of risk to safety integrity (see Clause A.4); – the determination of tolerable risk (see Annex K); – a number of different methods that enable the safety integrity level (SIL) for the safety instrumented functions (SIF) to be determined (see Annexes B through K); – the impact of multiple safety systems on calculations determining the ability to achieve the desired risk reduction (see Annex J). In particular, this part of IEC 61511: a) applies when functional safety is achieved using one or more SIF for the protection of either personnel, the general public, or the environment; b) may be applied in non-safety applications such as asset protection; c) illustrates typical hazard and risk assessment methods that may be carried out to define the safety functional requirements and SIL of each SIF; d) illustrates techniques/measures available for determining the required SIL; e) provides a framework for establishing SIL but does not specify the SIL required for specific applications; f) does not give examples of determining the requirements for other methods of risk reduction.
EN 61511-3:2017 - Identical
IEC 61511-3:2016 - Identical
IEC 61511-3 : 2.0 - Identical
IEC 61511-3 : 2.0 - Identical
EN 61511-3 : 2017 - Identical
