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BSI PD IEC/TS 61586:2017

BSI PD IEC/TS 61586:2017

$142.49

Estimation of the reliability of electrical connectors

Published By Publication Date Number of Pages
BSI 2017 30
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This technical specification deals with the estimation of the inherent design reliability of electrical connectors through the definition and development of an appropriate accelerated testing programme. The basic intrinsic degradation mechanisms of connectors, which are those mechanisms which exist as a result of the materials and geometries chosen for the connector design, are reviewed to provide a context for the development of the desired test programme. While extrinsic degradation mechanisms may also significantly affect the performance of connectors, they vary widely by application and thus are not addressed in this document.

PDF Catalog

PDF Pages PDF Title
4 English
CONTENTS
5 FOREWORD
7 INTRODUCTION
9 1 Scope
2 Normative references
3 Terms and definitions
4 General considerations
4.1 General
4.2 Intrinsic degradation mechanisms
4.3 Extrinsic degradation mechanisms
10 4.4 Control of extrinsic degradation
4.5 Failure effects, failure modes and failure (degradation) mechanisms
4.5.1 General
4.5.2 Failure modes
4.5.3 Degradation mechanisms
11 5 Test methods and acceleration factors
12 6 Basic contact and connector reliability testing protocol
16 7 Reliability statistics
7.1 Basic statistical approach to estimating reliability for variables data
17 7.2 Contact vs. connector reliability
18 7.3 Estimating contact / connector reliability estimates in terms of MTTF/MTBF
8 Acceptance criteria
19 9 Summary and conclusions
20 Annex A (informative) Determining the stress relaxation acceleration factor for dry heat test conditions
22 Annex B (informative) Using extreme value distributions to estimate reliability for multiple position connectors
Figures
Figure B.1 – Contact arrangement in a square 16 pole connector
23 Figure B.2 – Largest ΔR values: reference of maximum allowed change – 20 mΩ
24 Figure B.3 – Largest ΔR values with confidence interval for reliability estimates – Largest extreme value probability with 90 % confidence interval – Sample size = 10
25 Figure B.4 – Largest ΔR values with confidence interval for reliability estimates – Largest extreme value probability with 90 % confidence interval – Sample size = 5
26 Figure B.5 – Largest ΔR values with confidence interval for reliability estimates – Largest extreme value probability with 90 % confidence interval – Sample size = 20
27 Bibliography

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BSI PD IEC/TS 61586:2017
$142.49