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CENELEC
EN 60216-6:2006

EN 60216-6:2006

Current

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

Published date

11-03-2006

Publisher

European Committee for Standards - Electrical

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

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.

Committee
CLC/SR 112
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current

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

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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