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S+ IEC 60216-6 Ed. 3.0 en:2022 (Redline version) Electrical insulating materials - Thermal endurance properties - Part 6: Determination of thermal endurance indices (TI and RTI) of an insulating material using the fixed time frame method, 2022
- Redline version (English only) [Go to Page]
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, symbols and abbreviated terms [Go to Page]
- 3.1 Terms and definitions
- 3.2 Symbols and abbreviated terms
- 4 FTFM protocol [Go to Page]
- 4.1 Principles of FTFM protocol
- 4.2 Objective of FTFM protocol
- 5 TI determination [Go to Page]
- 5.1 Ageing procedures
- 5.2 Ageing times and temperatures
- 5.3 Test specimens [Go to Page]
- 5.3.1 Preparation
- 5.3.2 Number of specimens
- 5.4 Diagnostic tests
- 5.5 Selection of end-points
- 5.6 Establishment of initial property value
- 5.7 Ageing conditions [Go to Page]
- 5.7.1 Ageing ovens
- 5.7.2 Environmental conditions
- 5.7.3 Conditions for property measurement
- 5.8 Procedure for ageing
- 6 Calculation procedures [Go to Page]
- 6.1 General principles [Go to Page]
- 6.1.1 Thermal endurance calculation
- 6.1.2 Property value – equivalent temperature transform(Calculation of hypothetical ageing temperature derived from the value of a property)
- 6.2 Precision of calculations
- 6.3 Derivation of temperatures equivalent to property values [Go to Page]
- 6.3.1 General
- 6.3.2 Preliminary calculations
- 6.3.3 Regression calculations (property on temperature)
- 6.3.4 Linearity test
- 6.3.5 Estimation of end-point temperatures equivalent to property values
- 6.4 Regression analysis (temperature on time) [Go to Page]
- 6.4.1 General
- 6.4.2 Group means and variances
- 6.4.3 General means and variances
- 6.4.4 Regression
- 6.5 Statistical tests [Go to Page]
- 6.5.1 Variance equality test
- 6.5.2 Linearity test (F-test)
- 6.5.3 Estimates of x and y and their confidence limits
- 6.6 Thermal endurance graph
- 7 Calculation and requirements for results [Go to Page]
- 7.1 Calculation of thermal endurance characteristics
- 7.2 Reporting of results [Go to Page]
- 7.2.1 Summary of statistical tests and reporting
- 7.2.2 Report format
- 8 Report
- 9 RTI determination
- 10 Additional symbols
- 11 Experimental procedures [Go to Page]
- 11.1 Selection of reference EIM
- 11.2 Selection of diagnostic test for extent of ageing
- 11.3 Ageing procedures
- 12 Calculation procedures [Go to Page]
- 12.1 General principles
- 12.2 Input data
- 12.3 RTI
- 12.4 Confidence limits
- 12.5 Extrapolation
- 13 Results and report [Go to Page]
- 13.1 Results of statistical and numerical tests
- 13.2 Result
- 13.3 Report
- Annexes [Go to Page]
- Annex A (normative) Decision flow chart
- Annex B (normative) Decision table
- Annex C (informative) Statistical tables
- Annex D (informative) Suggested ageing times and temperatures [Go to Page]
- D.1 TI determination [Go to Page]
- D.1.1 Correlation time (TI) = 20 000 h
- D.1.2 Other correlation times for TI calculation (see 12.3)
- D.2 RTI determination
- Annex E (informative) Figures
- Annex F (normative) Statistical significance of the difference between two regression estimates
- Annex G (informative) Computer program [Go to Page]
- G.1 General [Go to Page]
- G.1.1 Overview
- G.1.2 Convenience program execution
- G.2 Data files [Go to Page]
- G.2.1 Content of file Control6.ftd
- G.2.2 Report
- G.2.3 Thermal endurance graph
- Figures [Go to Page]
- Figure A.1 – Decision flow chart
- Figure E.1 – Property-temperature graph with regression line
- Figure E.2 – Thermal endurance graph
- Figure E.3 – Ageing times and temperatures in relation to thermal endurance graph
- Figure E.4 – Ageing times and temperatures in relation to thermal endurance graph
- Figure E.5 – Ageing times and temperatures in relation to thermal endurance graph
- Figure G.1 – Shortcut property dialog for program launch
- Figure G.2 – Thermal endurance graph
- Tables [Go to Page]
- Table 1 – Intermediate data values
- Table B.1 – Decision table
- Table C.1 – χ 2-function
- Table C.2 – t-function
- Table C.3 – F-function, P = 0,05
- Table C.4 – F-function, P = 0,005
- Table D.1 – Ageing temperatures and times
- International Standard (Bilingual) [Go to Page]
- English [Go to Page]
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, symbols and abbreviated terms [Go to Page]
- 3.1 Terms and definitions
- 3.2 Symbols and abbreviated terms
- 4 FTFM protocol [Go to Page]
- 4.1 Principles of FTFM protocol
- 4.2 Objective of FTFM protocol
- 5 TI determination [Go to Page]
- 5.1 Ageing procedures
- 5.2 Ageing times and temperatures
- 5.3 Test specimens [Go to Page]
- 5.3.1 Preparation
- 5.3.2 Number of specimens
- 5.4 Diagnostic tests
- 5.5 Selection of end-points
- 5.6 Establishment of initial property value
- 5.7 Ageing conditions [Go to Page]
- 5.7.1 Ageing ovens
- 5.7.2 Environmental conditions
- 5.7.3 Conditions for property measurement
- 5.8 Procedure for ageing
- 6 Calculation procedures [Go to Page]
- 6.1 General principles [Go to Page]
- 6.1.1 Thermal endurance calculation
- 6.1.2 Property value – equivalent temperature transform(Calculation of hypothetical ageing temperature derived from the value of a property)
- 6.2 Precision of calculations
- 6.3 Derivation of temperatures equivalent to property values [Go to Page]
- 6.3.1 General
- 6.3.2 Preliminary calculations
- 6.3.3 Regression calculations (property on temperature)
- 6.3.4 Linearity test
- 6.3.5 Estimation of end-point temperatures equivalent to property values
- 6.4 Regression analysis (temperature on time) [Go to Page]
- 6.4.1 General
- 6.4.2 Group means and variances
- 6.4.3 General means and variances
- 6.4.4 Regression
- 6.5 Statistical tests [Go to Page]
- 6.5.1 Variance equality test
- 6.5.2 Linearity test (F-test)
- 6.5.3 Estimates of x and y and their confidence limits
- 6.6 Thermal endurance graph
- 7 Calculation and requirements for results [Go to Page]
- 7.1 Calculation of thermal endurance characteristics
- 7.2 Reporting of results [Go to Page]
- 7.2.1 Summary of statistical tests and reporting
- 7.2.2 Report format
- 8 Report
- 9 RTI determination
- 10 Additional symbols
- 11 Experimental procedures [Go to Page]
- 11.1 Selection of reference EIM
- 11.2 Selection of diagnostic test for extent of ageing
- 11.3 Ageing procedures
- 12 Calculation procedures [Go to Page]
- 12.1 General principles
- 12.2 Input data
- 12.3 RTI
- 12.4 Confidence limits
- 12.5 Extrapolation
- 13 Results and report [Go to Page]
- 13.1 Results of statistical and numerical tests
- 13.2 Result
- 13.3 Report
- Annexes [Go to Page]
- Annex A (normative) Decision flow chart
- Annex B (normative) Decision table
- Annex C (informative) Statistical tables
- Annex D (informative) Suggested ageing times and temperatures [Go to Page]
- D.1 TI determination [Go to Page]
- D.1.1 Correlation time (TI) = 20 000 h
- D.1.2 Other correlation times for TI calculation (see 12.3)
- D.2 RTI determination
- Annex E (informative) Figures
- Annex F (normative) Statistical significance of the difference between two regression estimates
- Annex G (informative) Computer program [Go to Page]
- G.1 General [Go to Page]
- G.1.1 Overview
- G.1.2 Convenience program execution
- G.2 Data files [Go to Page]
- G.2.1 Content of file Control6.ftd
- G.2.2 Report
- G.2.3 Thermal endurance graph
- Figures [Go to Page]
- Figure A.1 – Decision flow chart
- Figure E.1 – Property-temperature graph with regression line
- Figure E.2 – Thermal endurance graph
- Figure E.3 – Ageing times and temperatures in relation to thermal endurance graph
- Figure E.4 – Ageing times and temperatures in relation to thermal endurance graph
- Figure E.5 – Ageing times and temperatures in relation to thermal endurance graph
- Figure G.1 – Shortcut property dialog for program launch
- Figure G.2 – Thermal endurance graph
- Tables [Go to Page]
- Table 1 – Intermediate data values
- Table B.1 – Decision table
- Table C.1 – χ 2-function
- Table C.2 – t-function
- Table C.3 – F-function, P = 0,05
- Table C.4 – F-function, P = 0,005
- Table D.1 – Ageing temperatures and times
- Français [Go to Page]
- SOMMAIRE
- AVANT-PROPOS
- 1 Domaine d'application
- 2 Références normatives
- 3 Termes, définitions, symboles et abréviations [Go to Page]
- 3.1 Termes et définitions
- 3.2 Symboles et abréviations
- 4 Protocole FTFM [Go to Page]
- 4.1 Principes du protocole FTFM
- 4.2 Objectif du protocole FTFM
- 5 Détermination de l’IT [Go to Page]
- 5.1 Procédures de vieillissement
- 5.2 Températures et temps de vieillissement
- 5.3 Éprouvettes [Go to Page]
- 5.3.1 Préparation
- 5.3.2 Nombre d’éprouvettes
- 5.4 Essais de diagnostic
- 5.5 Choix des points limites
- 5.6 Détermination de la valeur de propriété initiale
- 5.7 Conditions de vieillissement [Go to Page]
- 5.7.1 Étuves de vieillissement
- 5.7.2 Conditions d’environnement
- 5.7.3 Conditions de mesure de propriété
- 5.8 Procédure de vieillissement
- 6 Procédures de calcul [Go to Page]
- 6.1 Principes généraux [Go to Page]
- 6.1.1 Calcul de l’endurance thermique
- 6.1.2 Valeur de propriété – transformée de température équivalente(Calcul de température de vieillissement hypothétique déduit à partir de la valeur d’une propriété)
- 6.2 Précision des calculs
- 6.3 Déduction des températures équivalentes aux valeurs de propriété [Go to Page]
- 6.3.1 Généralités
- 6.3.2 Calculs préliminaires
- 6.3.3 Calculs de régression (propriété sur la température)
- 6.3.4 Essai de linéarité
- 6.3.5 Estimation des températures de point limite équivalentes aux valeurs de propriété
- 6.4 Analyse de régression (température en fonction du temps) [Go to Page]
- 6.4.1 Généralités
- 6.4.2 Moyennes et variances de groupe
- 6.4.3 Moyennes et variances générales
- 6.4.4 Régression
- 6.5 Essais statistiques [Go to Page]
- 6.5.1 Essai d’égalité de variance
- 6.5.2 Essai de linéarité (essai F)
- 6.5.3 Estimations de x et y et de leurs limites de confiance
- 6.6 Graphique d’endurance thermique
- 7 Calcul et exigences pour les résultats [Go to Page]
- 7.1 Calcul des caractéristiques d’endurance thermique
- 7.2 Communication des résultats [Go to Page]
- 7.2.1 Synthèse des essais statistiques et communication
- 7.2.2 Format du rapport
- 8 Rapport
- 9 Détermination de l’ITR
- 10 Symboles supplémentaires
- 11 Procédures expérimentales [Go to Page]
- 11.1 Choix du MIE de référence
- 11.2 Choix d’un essai de diagnostic pour l'étendue du vieillissement
- 11.3 Procédures de vieillissement
- 12 Procédures de calcul [Go to Page]
- 12.1 Principes généraux
- 12.2 Données d’entrée
- 12.3 ITR
- 12.4 Limites de confiance
- 12.5 Extrapolation
- 13 Résultats et rapport [Go to Page]
- 13.1 Résultats des essais statistiques et numériques
- 13.2 Résultat
- 13.3 Rapport
- Annexes [Go to Page]
- Annexe A (normative) Organigramme décisionnel
- Annexe B (normative) Tableau de décision
- Annexe C (informative) Tableaux statistiques
- Annexe D (informative) Températures et temps de vieillissement proposés [Go to Page]
- D.1 Détermination de l’IT [Go to Page]
- D.1.1 Temps de corrélation (IT) = 20 000 h
- D.1.2 Autres temps de corrélation pour calcul de l’IT (voir 12.3)
- D.2 Détermination de l’ITR
- Annexe E (informative) Figures
- Annexe F (normative) Signification statistique de la différence entre deux estimations de régression
- Annexe G (informative) Programme informatique [Go to Page]
- G.1 Généralités [Go to Page]
- G.1.1 Vue d’ensemble
- G.1.2 Exécution pratique du programme
- G.2 Fichiers de données [Go to Page]
- G.2.1 Contenu du fichier Control6.ftd
- G.2.2 Rapport
- G.2.3 Graphique d’endurance thermique
- Figures [Go to Page]
- Figure A.1 – Organigramme décisionnel
- Figure E.1 – Graphique de la propriété en fonction de la température avec droite de régression
- Figure E.2 – Graphique d’endurance thermique
- Figure E.3 – Graphique des températures et temps de vieillissement en relation avec le graphique d’endurance thermique
- Figure E.4 – Graphique des températures et temps de vieillissement en relation avec le graphique d’endurance thermique
- Figure E.5 – Graphique des températures et temps de vieillissement en relation avec le graphique d’endurance thermique
- Figure G.1 – Boîte de dialogue des propriétés du raccourci pour le lancement du programme
- Figure G.2 – Graphique d’endurance thermique
- Tableaux [Go to Page]
- Tableau 1 – Valeurs de données intermédiaires
- Tableau B.1 – Tableau de décision
- Tableau C.1 – Fonction χ 2
- Tableau C.2 – Fonction t
- Tableau C.3 – Fonction F, P = 0,05
- Tableau C.4 – Fonction F, P = 0,005
- Tableau D.1 – Températures et temps de vieillissement [Go to Page]