Skip to content
Please enter a keyword to search
  • Preview

    I.S. EN 61857-1:2009

    Current The latest, up-to-date edition.

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

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2009

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

    Add To Cart

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 General information
      4.1 Overview of test procedure
      4.2 Basis of evaluation and qualification
      4.3 Specific requirements
    5 Test objects
      5.1 General
      5.2 Description
      5.3 Number of test objects
    6 Test procedures
      6.1 General
      6.2 Initial screening tests
      6.3 Thermal ageing
      6.4 Prediagnostic mechanical stress
      6.5 Other prediagnostic conditioning
      6.6 Moisture exposure
      6.7 Dielectric diagnostic tests
      6.8 Other diagnostic tests
    7 Analyzing, reporting and classification
      7.1 End-point criterion
      7.2 Method of determining life
      7.3 Extrapolation of data
      7.4 Report of results
    Bibliography
    Annex ZA (normative) Normative references to international
             publications with their corresponding European
             publications

    Abstract - (Show below) - (Hide below)

    Specifies a general test procedure for the thermal evaluation and qualification of electrical insulation systems (EIS) and establishes a procedure that compares the performance of a candidate EIS to that of a reference EIS.

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

    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current

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

    EN 60085:2008 Electrical insulation - Thermal evaluation and designation
    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 60611:1978 Guide for the preparation of test procedures for evaluating the thermal endurance of electrical insulation systems
    IEC 60505:2011 Evaluation and qualification of electrical insulation systems
    IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
    IEC 60034-18-1:2010 Rotating electrical machines - Part 18-1: Functional evaluation of insulation systems - General guidelines
    IEC 62114:2001 Electrical Insulation Systems - Thermal classification
    EN 60216-5:2008 Electrical insulating materials - Thermal endurance properties - Part 5: Determination of relative thermal endurance index (RTE) of an insulating material
    IEC 60034-18-21:2012 Rotating electrical machines - Part 18-21: Functional evaluation of insulation systems - Test procedures for wire-wound windings - Thermal evaluation and classification
    IEC 60034-18-31:2012 Rotating electrical machines - Part 18-31: Functional evaluation of insulation systems - Test procedures for form-wound windings - Thermal evaluation and classification of insulation systems used in rotating machines
    EN 60216-4-1:2006 Electrical insulating materials - Thermal endurance properties - Part 4-1: Ageing ovens - Single-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
    EN 60505:2011/AC:2017-03 EVALUATION AND QUALIFICATION OF ELECTRICAL INSULATION SYSTEMS (IEC 60505:2011/COR1:2017)
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective