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I.S. EN 62059-31-1:2008

Current
Current

The latest, up-to-date edition.

ELECTRICITY METERING EQUIPMENT - DEPENDABILITY - PART 31-1: ACCELERATED RELIABILITY TESTING - ELEVATED TEMPERATURE AND HUMIDITY
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2008

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Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols, acronyms and abbreviations
5 Description of quantitative accelerated life tests
   5.1 Introduction
   5.2 The life distribution
   5.3 The life-stress model
6 The Weibull distribution
   6.1 Introduction
   6.2 Graphical representation
   6.3 Calculation of the distribution parameters
        6.3.1 Input data to be used
        6.3.2 Ranking of the time to failure
        6.3.3 Reliability/unreliability estimates
        6.3.4 Calculation of the parameters
7 The life-stress model
   7.1 General
   7.2 Linear equation of the acceleration factor
   7.3 Calculation of parameters n and E[a]
8 The quantitative accelerated life testing method
   8.1 Selection of samples
   8.2 The steps to check product life characteristics
   8.3 Procedure for terminating the maximum stress level
        test
   8.4 Procedure to collect time to failure data and to repair
        meters
9 Definition of normal use conditions
   9.1 Introduction
   9.2 Temperature and humidity conditions
        9.2.1 Equipment for outdoor installation
        9.2.2 Equipment for indoor installation
   9.3 Temperature correction due to variation of
        voltage and current
        9.3.1 Definition of the normal use profile of voltage
               and current
        9.3.2 Measurement of the meter internal temperature
               at each current and voltage
        9.3.3 Calculation of the meter average internal
               temperature
   9.4 Other conditions
10 Classification and root cause of failures
11 Presentation of the results
   11.1 Information to be given
   11.2 Example
12 Special cases
   12.1 Cases of simplification
        12.1.1 Minor evolution of product design
        12.1.2 Verification of production batches
   12.2 Cases when additional information is needed
        12.2.1 The beta parameter changes significantly from
               maximum stress level to medium or low stress
               level
        12.2.2 Fault mode different between stress levels
Annex A (informative) Basic statistical background
Annex B (informative) The characteristics of the Weibull
        distribution
Annex C (informative, see also draft IEC 62308) Life-stress
        models
Annex D (normative) Rank tables
Annex E (normative) Values of the Gamma function tau(n)
Annex F (normative) Calculation of the minimum duration
        of the maximum stress level test
Annex G (informative) Example
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Bibliography
INDEX

Provides one of several possible methods for estimating product life characteristics by accelerated reliability testing.

DevelopmentNote
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType
Standard
Pages
184
PublisherName
National Standards Authority of Ireland
Status
Current

Standards Relationship
EN 62059-31-1 : 2008 Identical

IEC 60605-3-2:1986 Equipment reliability testing. Part 3: Preferred test conditions. Equipment for stationary use in weatherprotected locations - High degree of simulation
IEC 60605-4:2001 Equipment reliability testing - Part 4: Statistical procedures for exponential distribution - Point estimates, confidence intervals, prediction intervals and tolerance intervals
IEC 62308:2006 Equipment reliability - Reliability assessment methods
IEC 60605-3-3:1992 Equipment reliability testing - Part 3: Preferred test conditions - Section 3: Test Cycle 3: Equipment for stationary use in partially weatherprotected locations - Low degree of simulation
IEC 60319:1999 Presentation and specification of reliability data for electronic components
IEC 61649:2008 Weibull analysis
IEC 60605-6:2007 Equipment reliability testing - Part 6: Tests for the validity and estimation of the constant failure rate and constant failure intensity
EN 62059-41:2006 Electricity metering equipment - Dependability - Part 41: Reliability prediction
IEC 62059-41:2006 Electricity metering equipment - Dependability - Part 41: Reliability prediction
EN 61649:2008 Weibull analysis
IEC 61163-1:2006 Reliability stress screening - Part 1: Repairable assemblies manufactured in lots
IEC TR 62059-21:2002 Electricity metering equipment - Dependability - Part 21: Collection of meter dependability data from the field
IEC 61124:2012 Reliability testing - Compliance tests for constant failure rate and constant failure intensity
IEC 61164:2004 Reliability growth - Statistical test and estimation methods
IEC 61703:2016 Mathematical expressions for reliability, availability, maintainability and maintenance support terms
IEC 60605-2:1994 Equipment reliability testing - Part 2: Design of test cycles
IEC 61709 : 3.0 ELECTRIC COMPONENTS - RELIABILITY - REFERENCE CONDITIONS FOR FAILURE RATES AND STRESS MODELS FOR CONVERSION
IEC 61650:1997 Reliability data analysis techniques - Procedures for comparison of two constant failure rates and two constant failure (event) intensities
IEC TR 62059-11:2002 Electricity metering equipment - Dependability - Part 11: General concepts
EN 62308 : 2006 EQUIPMENT RELIABILITY - RELIABILITY ASSESSMENT METHODS
IEC 61710:2013 Power law model - Goodness-of-fit tests and estimation methods
EN 61703:2016 Mathematical expressions for reliability, availability, maintainability and maintenance support terms
IEC 60300-3-5:2001 Dependability management - Part 3-5: Application guide - Reliability test conditions and statistical test principles

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