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It can be difficult to create a good Safety Requirement Specification (SRS). Consiltant BV provides a free SRS template and SRS example.
21 Ιαν 2016 · The IEC 61511 Standard requires the user to create a Safety Requirements Specification (SRS) for a Safety Instrumented System (SIS) that incorporates all the analysis done during the Risk Assessment, HAZOP/PHA and LOPA reviews.
16 Μαΐ 2018 · Writing SRS: format and content. SRS format should be divided into 3 components: General requirements; Functional requirements; Integrated security requirements. Regarding contents, it must include: Design and architecture; Reliability; SIL (Safety Integrity Level);
28 Μαρ 2018 · Examples of information that can, and must, be clearly numerically expressed are: demand rates, proof-test intervals and coverage, SIF response time, process safety time, RRF & SIL level performance, process measurements and accuracy, mean time to restoration, mean repair time, etc.
9 Ιουν 2018 · The SRS is essentially broken down into 1) Specification for overall safety requirements (IEC 61508-1 Clause 7.5 which is driven by hazard and risk analysis) and 2) System design...
The Safety Requirement Specification is tailored to your individual needs, it can include: Guarding specifications. Safety-related control system functional specifications, by machine zone and hazard. Identification of the formal ‘Input - Logic - Output’ block diagrams.
This document provides guidelines for writing a Safety Requirements Specification (SRS) according to standard IEC 61511 for safety instrumented systems in process industry. An SRS must document all safety requirements and is an important part of the safety lifecycle.
