The International Electrotechnical Commission (IEC). Version 4.0 05/12/97. 29 p. This part of IEC 61508 contains the definitions and explanation of terms that are used in parts 1 to 7 of this standard. 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.
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The International Electrotechnical Commission (IEC). First edition. 2003-03. The International Standard IEC 61511-3 has the status of a British Standard. 56 p. This part of IEC 61511 provides information on – the underlying concepts of risk, the relationship of risk to safety integrity, see Clause 3; – the determination of tolerable risk, see Annex A; – a number of different...
The International Electrotechnical Commission (IEC). Version 4.0 05/12/97. 58 p. This international standard covers those aspects to be considered when electrical/electronic/programmable electronic systems (E/E/PESs) are used to carry out safety functions. A major objective of this standard is to facilitate the development of application sector international standards by the...
The International Electrotechnical Commission (IEC). 69 p. This part of IEC 61508: a) is intended to be used only after a thorough understanding of IEC 61508-1, which provides the overall framework for the achievement of functional safety; b) applies to any safety-related system, as defined by IEC 61508-1, which contains at least one electrical, electronic or programmable...
The International Electrotechnical Commission (IEC). Version 12.0 05/12/97. 45 p. This part of this standard: a) is intended to be utilised only after a thorough understanding of parts 1 and 2. b) applies to any software forming part of a safety-related system or used to develop a safety-related system within the scope of parts 1 and 2. Such software is termed safety-related...
The International Electrotechnical Commission (IEC). Version 4.0 05/12/97. 27 p. This part provides information on: — the underlying concepts of risk and the relationship of risk to safety integrity (annex A); — a number of methods that will enable the safety integrity levels for the E/E/PE safety-related systems, other technology safety-related systems and external risk...
The International Electrotechnical Commission (IEC). Version 4.0 05/12/97. 79 p. This part contains information and guidelines on parts 2 and 3. — Annex A gives a brief overview of the requirements of parts 2 and 3 and sets out the functional steps in their application. — Annex B gives an example technique for calculating the probabilities of failure and should be read in...
