International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 56

Dependability

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 56WG 1 Edward KorczakPPUB2016-082022

History

Stage
Document
Downloads
Decision Date
Target Date
AMW
56/1505/RR PDF file 113 kB
2013-03-082013-03
1CD
56/1506/CD PDF file 559 kB
2013-03-082013-03
CDM
56/1526/CC PDF file 44 kB
2013-06-212013-07
CDM
56/1526B/CC Word file 945 kB
PDF file 517 kB
2013-06-212013-07
ACDV
56/1526A/CC Word file 795 kB
PDF file 375 kB
2013-07-052013-11
CCDV
56/1602/CDV
PDF file 1241 kB
2015-02-202014-12
AFDIS
56/1624/RVC Word file 1190 kB
PDF file 739 kB
2015-05-292015-08
AFDIS
56/1624A/RVC Word file 1198 kB
PDF file 831 kB
2015-05-292015-08
DECFDIS
2016-03-012015-12
RFDIS
2016-04-042016-03
CFDIS
56/1682/FDIS

2016-05-132016-06
APUB
56/1693/RVD PDF file 229 kB
2016-07-112016-07
BPUB
2016-07-122016-07
PPUB
2016-08-122016-08
  

Abstract

IEC 61703:2016 provides mathematical expressions for selected reliability, availability, maintainability and maintenance support measures defined in IEC 60050­192:2015. In addition, it introduces some terms not covered in IEC 60050-192:2015. They are related to aspects of the system of item classes (see hereafter). According to IEC 60050-192:2015, dependability [192-01-22] is the ability of an item to perform as and when required and an item [192-01-01] can be an individual part, component, device, functional unit, equipment, subsystem, or system. To account for mathematical constraints, this standard splits the items between the individual items considered as a whole (e.g. individual components) and the systems made of several individual items. It provides general considerations for the mathematical expressions for systems as well as individual items but the individual items which are easier to model are analysed in more detail with regards to their repair aspects. This standard is mainly applicable to hardware dependability, but many terms and their definitions may be applied to items containing software. This second edition cancels and replaces the first edition published in 2001. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- standard made as self containing as possible;
- item split between individual items and systems;
- generalization of the dependability concepts for systems made of several components [introduction of the conditional failure intensity (Vesely failure rate);
- introduction of the state-transition and the Markovian models;
- generalization of the availability to production availability];
- introduction of curves to illustrate the various concepts. Keywords: mathematical expressions for dependability

Project

IEC 61703:2016 ED2

Mathematical expressions for reliability, availability, maintainability and maintenance support terms

 

 

Associated Documents:

SMB/5436/DL

PDF file 237 kB