BS EN 61508-4:2010 Functional safety of electrical/electronic/ programmable electronic safety related systems. Definitions and abbreviations
BS EN 61508-4 contains the definitions and explanation of terms that are used in parts 1 to 7 of BS EN 61508.
The definitions are grouped under general headings so that related terms can be understood within the context of each other. But it should be noted that these headings are not intended to add meaning to the definitions, and in this sense the headings should be disregarded.
Parts 1, 2, 3 and 4 of BS EN 61508 are basic safety publications.
The BS EN 61508 series consists of 7 parts that cover the functional safety of E/E/PE safety systems:
- BS EN 61508-1:2010 General requirements
- BS EN 61508-2:2010 Requirements for electrical/ electronic/ programmable electronic safety-related systems
- BS EN 61508-3:2010 Software requirements
- BS EN 61508-4:2010 Definitions and abbreviations
- BS EN 61508-5:2010 Examples of methods for the determination of safety integrity levels
- BS EN 61508-6:2010 Guidelines on the application of IEC 61508-2 and IEC 61508-3
- BS EN 61508-7:2010 Overview of techniques and measures
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.
