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  • BS 6921:1988

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    Method for evaluation of the thermal endurance of flexible sheet electrical insulating materials using the wrapped tube method

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  20-04-2012

    Language(s):  English

    Published date:  30-12-1988

    Publisher:  British Standards Institution

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

    National foreword
    Committees responsible
    Method
    1. Scope
    2. General
    3. Preparation of test specimens
    4. Heating of specimens
    5. Conditioning
    6. Measurement of breakdown voltage
    7. Procedure
    Table
    1. Suggested exposure temperatures and cycle durations

    Abstract - (Show below) - (Hide below)

    Provides an evaluation by measuring the breakdown voltage after being subjected to selected exposure temperatures corresponding to an extrapolated 20 000 h time to failure.

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

    Committee GEL/15
    Development Note Also numbered as IEC 60795 Supersedes 86/31219 DC (09/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn

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

    BS 5691-2:1995 Guide for the determination of thermal endurance properties of electrical insulating materials Choice of test criteria

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

    BS 5691-1:1979 Guide for the determination of thermal endurance properties of electrical insulating materials General procedures for the determination of thermal endurance properties, temperature indices and thermal endurance profiles
    IEC 60216-4:1980 Guide for the determination of thermal endurance properties of electrical insulating materials - Part 4: Instructions for calculating the thermal endurance profile
    BS 2918:1957 Determination of electric strength of solid insulating materials at power frequencies
    BS 2782-2.220&221(1983) : LATEST METHODS OF TESTING PLASTICS - ELECTRICAL PROPERTIES - DETERMINATION OF ELECTRICAL STRENGTH: RAPIDLY APPLIED VOLTAGE METHOD AND STEP-BY-STEP METHOD
    BS 5691-2:1979 Guide for the determination of thermal endurance properties of electrical insulating materials List of materials and available tests
    IEC 60216-3:2006 Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for calculating thermal endurance characteristics
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