DS/EN 61078

Reliability block diagrams

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Organization: DS
Publication Date: 28 November 2016
Status: active
Page Count: 124
ICS Code (Other standards related to quality): 03.120.99
ICS Code (Quality in general): 03.120.01
scope:

IEC 61078:2016 this International Standard describes: - the requirements to apply when reliability block diagrams (RBDs) are used in dependability analysis; - the procedures for modelling the dependability of a system with reliability block diagrams; - how to use RBDs for qualitative and quantitative analysis; - the procedures for using the RBD model to calculate availability, failure frequency and reliability measures for different types of systems with constant (or time dependent) probabilities of blocks success/failure, and for non-repaired blocks or repaired blocks; - some theoretical aspects and limitations in performing calculations for availability, failure frequency and reliability measures; - the relationships with fault tree analysis (see IEC 61025) and Markov techniques (see IEC 61165). This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - the structure of the document has been entirely reconsidered, the title modified and the content extended and improved to provide more information about availability, reliability and failure frequency calculations; - Clause 3 has been extended and clauses have been introduced to describe the electrical analogy, the "non-coherent" RBDs and the "dynamic" RBDs; - Annex B about Boolean algebra methods has been extended; - Annex C (Calculations of time dependent probabilities), Annex D (Importance factors), Annex E (RBD driven Petri net models) and Annex F (Numerical examples and curves) have been introduced. Keywords: reliability block diagram (RBD)

Document History

DS/EN 61078
November 28, 2016
Reliability block diagrams
IEC 61078:2016 this International Standard describes: - the requirements to apply when reliability block diagrams (RBDs) are used in dependability analysis; - the procedures for modelling the...
May 30, 2006
Analysis techniques for dependability - Reliability block diagram and boolean methods
This International Standard describes procedures for modelling the dependability of a system and for using the model in order to calculate reliability and availability measures. The RBD modelling...
September 28, 1994
Analysis techniques for dependability - Reliability block diagram method
Describes procedures for modelling the reliability of a system and for using the model in order to calculate reliability and availability measures. A standard set of symbols related to reliability...
Reliability block diagrams
This International Standard aims to: • describe the requirements to apply when reliability block diagrams (RBD) are used in dependability analysis; • describe the procedures for modelling the...
Reliability block diagrams
This International Standard aims to: - describe the requirements to apply when reliability block diagrams (RBD) are used in dependability analysis; - describe the procedures for modelling the...
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