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  • BS 6236-2:1988

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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    ELECTRICAL INSULATING MATERIALS BASED ON MICA - METHODS OF TEST

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  26-10-2018

    Language(s):  English

    Published date:  01-01-1988

    Publisher:  British Standards Institution

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

    National foreword
    Committees responsible
    Methods
    Introduction
    1 Scope
    2 Preparation of test specimens for curable materials
    3 Thickness
    4 Density
    5 Apparent density
    6 Composition
    7 Tensile strength and elongation at break
    8 Flexural strength and elastic modulus in bend
    9 Folding
    10 Stiffness
    11 Resistance to exudation and displacement
    12 Elastic compression and plastic compression
    13 Resin flow and consolidation
    14 Gel time
    15 Electric strength
    16 Dissipation factor/temperature characteristics at
        frequencies of between 48 Hz and 62 Hz
    17 Dissipation factor/voltage characteristics at
        frequencies of between 48 Hz and 62 Hz
    18 Detection of defects and conductive particles
    19 Penetration
    20 Thermal endurance
    Figures
    1 Assembly of stacks for preparing test laminates
    2 Conditions for press procedure
    3 Apparatus for measurement of stiffness
    4 Apparatus for measurement of stiffness
    5 Elastic compression, plastic compression
    6 Standard Williams type penetrometer

    Abstract - (Show below) - (Hide below)

    Describes the methods of test applicable to built up mica materials, products based on them and mica paper. Covers preparation of test specimens for curable materials, thickness, density, composition, tensile strength and elongation at break, flexural strength and elastic modulus in bend, folding, stiffness, resistance to exudation and displacement, elastic compression and plastic compression, resin flow and consolidation, gel time, electric strength, dissipation factor & temperature characteristics at frequencies of between 48 Hz and 62 Hz, dissipation factor & voltage characteristics at frequencies of between 48 Hz and 62 Hz, detection of defects and conductive particles, penetration and thermal endurance.

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

    Committee CIL/15
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn
    Superseded By

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

    BS EN 60371-3-3:1995 SPECIFICATION FOR INSULATING MATERIALS BASED ON MICA - PART 3-3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SPECIFICATION FOR RIGID MICA MATERIALS FOR HEATING EQUIPMENT

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

    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 60243:1967 Recommended methods of test for electric strength of solid insulating materials at power frequencies
    IEC 60371-3-1:2006 Specification for insulating materials based on mica - Part 3: Specifications for individual materials - Sheet 1: Commutator separators and materials
    BS 2782-3 Method 335A:1978 Methods of testing plastics. Mechanical properties Determination of flexural properties of rigid plastics
    IEC 60216-1:2013 Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results
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