TC 56 |
Dependability |

Detail
Committee | Working Groups | Project Leader | Current Status |
Frcst Pub Date | Stability Date |
---|---|---|---|---|---|
TC 56 | WG 2 | Mr Jean-Pierre Signoret | PPUB | 2016-08 | 2025 |
History
Stage | Document | Downloads | Decision Date | Target Date | ||
---|---|---|---|---|---|---|
AMW |
| 2014-07-04 | 2014-06 | |||
1CD |
| 2014-07-04 | 2014-06 | |||
CDM |
| 2014-11-07 | 2014-10 | |||
ACDV |
| 2014-12-26 | 2015-01 | |||
CCDV |
| 2015-03-06 | 2014-12 | |||
AFDIS |
| 2015-06-19 | 2015-09 | |||
AFDIS |
| 2015-06-19 | 2015-09 | |||
DECFDIS | 2016-03-07 | 2017-02 | ||||
RFDIS | 2016-04-05 | 2016-03 | ||||
CFDIS |
| 2016-05-20 | 2016-06 | |||
APUB |
| 2016-07-11 | 2016-07 | |||
BPUB | 2016-07-12 | 2016-08 | ||||
PPUB | 2016-08-12 | 2016-09 | ||||
Abstract
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)
- 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)
