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  • EN 60216-6:2006

    Current The latest, up-to-date edition.

    Electrical insulating materials - Thermal endurance properties - Part 6: Determination of thermal endurance indices (TI and RTE) of an insulating material using the fixed time frame method

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    Published date:  03-11-2006

    Publisher:  European Committee for Standards - Electrical

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 Normative references
    3 Terms, definitions, symbols and abbreviated terms
       3.1 Terms, abbreviations and definitions
       3.2 Symbols and abbreviated terms
    4 FTFM protocol
       4.1 Principles and objectives
    5 TI determination
       5.1 Ageing procedures
       5.2 Ageing times and temperatures
       5.3 Test specimens
       5.4 Diagnostic tests
       5.5 Selection of end-points
       5.6 Establishment of initial property value
       5.7 Ageing conditions
       5.8 Procedure for ageing
    6 Calculation procedures
       6.1 General principles
       6.2 Precision of calculations
       6.3 Derivation of temperatures equivalent to property
            values
       6.4 Regression analysis (temperature on time)
       6.5 Statistical tests
       6.6 Thermal endurance graph
    7 Calculation and requirements for results
       7.1 Calculation of thermal endurance characteristics
       7.2 Reporting of results
    8 Report
    9 RTE Determination
       9.1 Objectives of RTE determination
    10 Additional symbols
    11 Experimental procedures
       11.1 Selection of control material
       11.2 Selection of diagnostic test for extent of ageing
       11.3 Ageing procedures
    12 Calculation procedures
       12.1 General principles
       12.2 Input data
       12.3 RTE
       12.4 Confidence limits
       12.5 Extrapolation
    13 Results and report
       13.1 Results of statistical and numerical tests
       13.2 Result
       13.3 Report
    Annex A (normative) Decision flow chart
    Annex B (normative) Decision table
    Annex C (informative) Statistical tables
    Annex D (informative) Suggested ageing times and temperatures
    Annex E (informative) Figures
    Annex F (normative) Statistical significance of the difference
                          between two regression estimates
    Annex G (informative) Computer programs for IEC 60216-6
    Annex ZA (normative) Normative references to international
                          publications with their corresponding
                          European publications
    Figures
    Tables

    Abstract - (Show below) - (Hide below)

    Specifies the experimental and calculation procedures for deriving the thermal endurance characteristics, temperature index (TI) and relative thermal endurance index (RTE) of a material using the 'fixed time frame method (FTFM)'. In this protocol, the ageing takes place for a small number of fixed times, using the appropriate number of ageing temperatures throughout each time, the properties of the specimens being measured at the end of the relevant time interval. This differs from the procedure of IEC 60216-1, where ageing is conducted at a small number of fixed temperatures, property measurement taking place after ageing times dependent on the progress of ageing. The diagnostic tests employed in the fixed time frame method are restricted to destructive tests. The method has not as yet been applied to non-destructive or proof test procedures. Both the TI and the RTE determined according to the FTFM protocol are derived from experimental data obtained in accordance with the instructions of IEC 60216-1 and IEC 60216-2 as modified in this standard. The calculation procedures and statistical tests are modified from those of IEC 60216-3 and IEC 60216-5. The significant technical changes with respect to the previous edition are as follows. - This new edition has been supplemented by Annex G and the corresponding software.

    General Product Information - (Show below) - (Hide below)

    Committee CLC/SR 112
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 60216-2:2005 Electrical insulating materials. Thermal endurance properties Determination of thermal endurance properties of electrical insulating materials. Choice of test criteria
    I.S. EN 62109-1:2010 SAFETY OF POWER CONVERTERS FOR USE IN PHOTOVOLTAIC POWER SYSTEMS - PART 1: GENERAL REQUIREMENTS
    EN 60085:2008 Electrical insulation - Thermal evaluation and designation
    EN 60216-2:2005 Electrical insulating materials - Thermal endurance properties - Part 2: Determination of thermal endurance properties of electrical insulating materials - Choice of test criteria
    EN 61858-2:2014 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 2: Form-wound EIS
    BS EN 60085:2008 Electrical insulation. Thermal evaluation and designation
    I.S. EN 61858-2:2014 ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED ELECTRICAL INSULATION SYSTEM (EIS) - PART 2: FORM-WOUND EIS
    BS EN 61858-2:2014 Electrical insulation systems. Thermal evaluation of modifications to an established electrical insulation system (EIS) Form-wound EIS
    CEI EN 60216-2 : 2006 ELECTRICAL INSULATING MATERIALS - THERMAL ENDURANCE PROPERTIES - PART 2: DETERMINATION OF THERMAL ENDURANCE PROPERTIES OF ELECTRICAL INSULATING MATERIALS - CHOICE OF TEST CRITERIA
    UNE-EN 62109-1:2011 Safety of power converters for use in photovoltaic power systems -- Part 1: General requirements
    BS EN 62109-1:2010 Safety of power converters for use in photovoltaic power systems General requirements
    I.S. EN 60216-2:2005 ELECTRICAL INSULATING MATERIALS - THERMAL ENDURANCE PROPERTIES - PART 2: DETERMINATION OF THERMAL ENDURANCE PROPERTIES OF ELECTRICAL INSULATING MATERIALS - CHOICE OF TEST CRITERIA
    EN 62109-1 : 2010 SAFETY OF POWER CONVERTERS FOR USE IN PHOTOVOLTAIC POWER SYSTEMS - PART 1: GENERAL REQUIREMENTS

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 60216-1:2013 Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results
    IEC 60212:2010 Standard conditions for use prior to and during the testing of solid electrical insulating materials
    HD 437 : 200S1 STANDARD CONDITIONS FOR USE PRIOR TO AND DURING THE TESTING OF SOLID ELECTRICAL INSULATING MATERIALS
    IEC 60216-4-2:2000 Electrical insulating materials - Thermal endurance properties - Part 4-2: Ageing ovens - Precision ovens for use up to 300 °C
    IEC 60216-4-1:2006 Electrical insulating materials - Thermal endurance properties - Part 4-1: Ageing ovens - Single-chamber ovens
    IEC 60493-1:2011 Guide for the statistical analysis of ageing test data - Part 1: Methods based on mean values of normally distributed test results
    EN 60216-4-2:2000 Electrical insulating materials - Thermal endurance properties - Part 4-2: Ageing ovens - Precision ovens for use up to 300 °C
    IEC 60216-2:2005 Electrical insulating materials - Thermal endurance properties - Part 2: Determination of thermal endurance properties of electrical insulating materials - Choice of test criteria
    EN 60216-3:2006 ELECTRICAL INSULATING MATERIALS - THERMAL ENDURANCE PROPERTIES - PART 3: INSTRUCTIONS FOR CALCULATING THERMAL ENDURANCE CHARACTERISTICS
    EN 60216-2:2005 Electrical insulating materials - Thermal endurance properties - Part 2: Determination of thermal endurance properties of electrical insulating materials - Choice of test criteria
    EN 60216-5:2008 Electrical insulating materials - Thermal endurance properties - Part 5: Determination of relative thermal endurance index (RTE) of an insulating material
    EN 60216-4-3:2000 Electrical insulating materials - Thermal endurance properties - Part 4-3: Ageing ovens - Multi-chamber ovens
    EN 60216-4-1:2006 Electrical insulating materials - Thermal endurance properties - Part 4-1: Ageing ovens - Single-chamber ovens
    IEC 60216-4-3:2000 Electrical insulating materials - Thermal endurance properties - Part 4-3: Ageing ovens - Multi-chamber ovens
    IEC 60216-5:2008 Electrical insulating materials - Thermal endurance properties - Part 5: Determination of relative thermal endurance index (RTE) of an insulating material
    IEC 60216-1:2013 Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results
    IEC 60216-3:2006 Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for calculating thermal endurance characteristics
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