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  • EN 60763-2:2007

    Current The latest, up-to-date edition.

    Specification for laminated pressboard - Part 2: Methods of test

    Available format(s): 

    Language(s): 

    Published date:  21-03-2007

    Publisher:  European Committee for Standards - Electrical

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Conditioning of test specimens
    4 Drying of test specimens
       4.1 Method A (preferable)
       4.2 Method B
    5 Dimensions
       5.1 Thickness
    6 Mechanical tests
       6.1 Flexural strength and load to produce a standard
            deflection
       6.2 Apparent modulus of elasticity in flexure
    7 Compressibility
       7.1 Principle
       7.2 Test apparatus
       7.3 Test pieces
       7.4 Procedure
       7.5 Results
    8 Electric strength in oil
       8.1 General and conditioning
       8.2 Electric strength along laminate (edgewise electric
            strength)
    9 Internal ply strength, thermal resistance and oil
       compatibility
       9.1 Principle
       9.2 Test specimens
       9.3 Test apparatus
       9.4 Procedure
       9.5 Determination of the flexural strength
       9.6 Results
    10 Apparent density
       10.1 Test specimens
       10.2 Procedure
       10.3 Results
    11 Moisture content
    12 Shrinkage in air after drying
       12.1 Test specimens
       12.2 Procedure
       12.3 Results
    13 Oil absorption
       13.1 Test specimens
       13.2 Procedure
       13.3 Results
    14 Ash content
       14.1 Procedure
       14.2 Results
    15 Contamination of liquid dielectrics
       15.1 Apparatus
       15.2 Test specimens
       15.3 Procedure
       15.4 Results
    16 Conductivity of aqueous extract
       16.1 Procedure
       16.2 Results
    17 pH of aqueous extract
    Annex ZA (normative) Normative references to international
             publications with their corresponding European
             publications

    Abstract - (Show below) - (Hide below)

    IEC 60763-2:2007 gives methods of test applicable for the material classified in IEC 60763-1. This edition includes the following significant technical changes with respect to the previous edition:The standard has generally been revised editorially and brought into line with IEC 60641-2;The test method for the determination of the internal ply strength has been replaced with an alternative method; andThe test method for the determination of the thermal resistance has been enlarged in its scope.

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

    Development Note Supersedes UNE EN 60763-2. (03/2010)
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Current

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

    BS EN 60763-3-1 : 1996 LAMINATED PRESSBOARD FOR ELECTRICAL PURPOSES - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 1: REQUIREMENTS FOR LAMINATED PRECOMPRESSED PRESSBOARD, TYPES LB 3.1A.1 AND LB3.1A.2
    CEI EN 60763-3-1 : 2012 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 1: SPECIFICATIONS FOR LAMINATED PRECOMPRESSED BOARD TYPES LB 3.1.1, 3.1.2, 3.3.1 AND 3.3.2
    EN 60763-3-1:2011 Laminated pressboard for electrical purposes - Part 3: Specifications for individual materials - Sheet 1: Requirements for laminated precompressed pressboard, Types LB 3.1A.1 and LB3.1A.2
    I.S. EN 60763-3-1:2011 LAMINATED PRESSBOARD FOR ELECTRICAL PURPOSES - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 1: REQUIREMENTS FOR LAMINATED PRECOMPRESSED PRESSBOARD, TYPES LB 3.1A.1 AND LB3.1A.2

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

    IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
    IEC 62021-1:2003 Insulating liquids - Determination of acidity - Part 1: Automatic potentiometric titration
    IEC 60250:1969 Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths
    IEC 61125:1992 Unused hydrocarbon based insulating liquids - Test methods for evaluating the oxidation stability
    EN 20287 : 1994 PAPER AND BOARD - DETERMINATION OF MOISTURE CONTENT - OVEN DRYING METHOD
    EN 61125:1993/A1:2004 UNUSED HYDROCARBON-BASED INSULATING LIQUIDS - TEST METHODS FOR EVALUATING THE OXIDATION STABILITY
    IEC 60641-2:2004 Pressboard and presspaper for electrical purposes - Part 2: Methods of tests
    IEC 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
    ISO 2144:2015 Paper, board and pulps Determination of residue (ash) on ignition at 900 degrees C
    EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
    EN 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
    EN 60243-1:2013 ELECTRIC STRENGTH OF INSULATING MATERIALS - TEST METHODS - PART 1: TESTS AT POWER FREQUENCIES (IEC 60243-1:2013)
    ISO 287:2017 Paper and board — Determination of moisture content of a lot — Oven-drying method
    EN 60763-1:2011 Laminated pressboard for electrical purposes - Part 1: Definitions, classification and general requirements
    IEC 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
    EN 60641-2:2004 Pressboard and presspaper for electrical purposes - Part 2: Methods of tests
    IEC 60763-1:2010 Laminated pressboard for electrical purposes - Part 1: Definitions, classification and general requirements
    EN 62021-1:2003 Insulating liquids - Determination of acidity - Part 1: Automatic potentiometric titration
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