BS EN 61508-3 shares best-practice software requirements for the functional safety of electrical, electronic and programmable electronic safety related systems. This standard should be read once part one and two are fully understood. BS EN 61508-3 applies to any software that forms a part of safety devices or is used to develop a safety related system. This includes operating systems, computer software, software in communication networks, interfaces, support tools and applications.
BS EN 61508-3 first looks at the conformance to this standard, before defining additional requirements to manage safety related software more effectively. It then explains the safety lifecycle requirements of software including design, support tools, development and testing. Other topics covered are validation, software modification and doing a functional safety assessment.
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The BS EN 61508 series consists of 7 parts that cover the functional safety of E/E/PE safety systems:
A Commented Version (CMV) of this standard series is available here. Please note, the CMV of the standard is not adopted, and therefore doesn’t contain an additional national foreword, or national annex that might be contained in the BS adoption of the standard. However the IEC text that forms the content of the standard is identical to the BS adoption of the standard.
Commented Versions (CMVs) are specialized publications featuring detailed commentary from technical experts on the major changes between the new edition of a standard and the previous one. Comments may include an explanation for the changes as well as information on the impact of these changes on the application and usability of the standard.
EN 61508-3:2010
IEC 61508-3:2010