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  • NF EN 61857-1 : 2009

    Current The latest, up-to-date edition.

    ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 1: GENERAL REQUIREMENTS - LOW-VOLTAGE

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    Published date:  12-01-2013

    Publisher:  Association Francaise de Normalisation

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

    AVANT-PROPOS
    INTRODUCTION
    1 Domaine d'application
    2 Références normatives
    3 Termes et définitions
    4 Information générale
      4.1 Vue d'ensemble de la procédure d'essai
      4.2 Base de l'évaluation et de la qualification
      4.3 Exigences particulières
    5 Eprouvettes
      5.1 Généralités
      5.2 Description
      5.3 Nombre d'éprouvettes
    6 Procédures d'essai
      6.1 Généralités
      6.2 Essais de sélection préliminaire
      6.3 Vieillissement thermique
      6.4 Contraintes mécaniques de prédiagnostic
      6.5 Autre conditionnement de prédiagnostic
      6.6 Exposition à l'humidité
      6.7 Essais de diagnostic diélectrique
      6.8 Autres essais de diagnostic
    7 Analyse, compte rendu et classification
      7.1 Critère de fin de vie
      7.2 Méthode de détermination de la durée de vie
      7.3 Extrapolation des données
      7.4 Compte rendu des résultats
    Bibliographie
    Annexe ZA (normative) Références normatives à d'autres
              publications internationales avec les publications
              européennes correspondantes

    Abstract - (Show below) - (Hide below)

    Defines a general test method for the thermal evaluation and qualification of electrical insulation systems (EIS) and determines a method for comparing the performance of a candidate EIS to a reference EIS. Applies to existing or proposed EISs used for electrotechnical products which have an input voltage not in excess of 1000 V when the thermal factor is the dominant ageing factor.

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    Development Note Indice de classement: C26-310-1. PR NF EN 61857-1 July 2003. (07/2003) Supersedes NFC 26 310-1. (06/2005) PR NF EN 61857-1 March 2009. (03/2009)
    Document Type Standard
    Publisher Association Francaise de Normalisation
    Status Current
    Supersedes

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

    NF EN 61857-22 : 2009 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 22: SPECIFIC REQUIREMENTS FOR ENCAPSULATED-COIL MODEL - WIRE-WOUND ELECTRICAL INSULATION SYSTEM (EIS)
    NF EN 61858 : 2009 ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS

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

    NF EN 60085 : 2008 ELECTRICAL INSULATION - THERMAL EVALUATION AND DESIGNATION
    NF EN 60216-5 : 2008 ELECTRICAL INSULATING MATERIALS - THERMAL ENDURANCE PROPERTIES - PART 5: DETERMINATION OF RELATIVE THERMAL ENDURANCE INDEX (RTE) OF AN INSULATING MATERIAL
    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
    IEC 60505:2011 Evaluation and qualification of electrical insulation systems
    NF EN 60216-4-1 : 2006 ELECTRICAL INSULATING MATERIALS - THERMAL ENDURANCE PROPERTIES - PART 4-1: AGEING OVENS - SINGLE-CHAMBER OVENS
    IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
    NF EN 60505 : 2011 EVALUATION AND QUALIFICATION OF ELECTRICAL INSULATION SYSTEMS
    NFC 26 202 : 1975 INSULATING MATERIALS STATISTICAL ANALYSIS OF AGEING TEST DATA
    IEC 60216-5:2008 Electrical insulating materials - Thermal endurance properties - Part 5: Determination of relative thermal endurance index (RTE) of an insulating material
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