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  • BS 5629-2:1979

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Insulating varnishes containing solvent Test methods

    Available format(s):  Hardcopy, PDF

    Superseded date:  06-12-2001

    Language(s):  English

    Published date:  28-09-1979

    Publisher:  British Standards Institution

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

    National foreword
    Cooperating organizations
    Introduction
    Section One - Test methods for varnishes as supplied
    1. Density
    2. Viscosity
    3. Non-volatile matter
    4. Drying time in thin films
    5. Flash point
    6. Dilution ability
    7. Ability to cure in considerable thickness
    8. Reaction of varnish with copper
    9. Stability of varnish in an enclosed vessel
    10. Stability of varnish in an open vessel
    11. Effect of varnish on enamelled wires (pencil
        hardness)
    Section Two - Test methods for varnishes in the cured
    form
    12. Flexibility tests
    12.1 Mandrel test
    12.2 Cupping test (Erichsen test)
    13. Bond strength
    14. Resistance to insulating liquids
    15. Effect of water immersion on volume resistivity
    16. Effect of water immersion on electric strength
    17. Resistance to tracking
    18. Dissipation factor and permittivity
    19. Thermal endurance
    Figure 1. Apparatus for carrying out the flexibility
    test

    Abstract - (Show below) - (Hide below)

    Test methods for electrical insulating varnishes containing solvent which, after solvent removal and curing, become non-thermoplastic.

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

    Committee GEL/15
    Development Note REPLACES BS 634:1961 AND BS 2778:1956.
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

    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
    BS 5664-2.1(1979) : 1979 SOLVENTLESS POLYMERISABLE RESINOUS COMPOUNDS USED FOR ELECTRICAL INSULATION - METHODS OF TEST

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

    ISO 1514:2016 Paints and varnishes — Standard panels for testing
    IEC 60112:2003+AMD1:2009 CSV Method for the determination of the proof and the comparative tracking indices of solid insulating materials
    BS 3900-E4:1976 Methods of test for paints. Mechanical tests on paint films Cupping test
    BS 3900-A3(1970) : AMD 4200
    ISO 1520:2006 Paints and varnishes Cupping test
    IEC 60290:1969 Evaluation of the thermal endurance of electrical insulating varnishes by the helical coil bond test
    IEC 60243:1967 Recommended methods of test for electric strength of solid insulating materials at power frequencies
    ISO 1523:2002 Determination of flash point — Closed cup equilibrium method
    IEC 60093:1980 Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials
    ISO 1337:1980 Wrought coppers (having minimum copper contents of 99,85 %) Chemical composition and forms of wrought products
    BS 4665-1:1971 Specification for enamelled copper conductors temperature index 180 (modified polyester base) Round wire
    ISO 1515:1973 Paints and varnishes — Determination of volatile and non-volatile matter
    IEC 60251-1:1978 Methods of test for winding wires - Part 1: Enamelled round wires
    BS 3900-B2:1970 Methods of test for paints. Tests involving chemical examination of liquid paints and dried paint films Determination of volatile matter and non-volatile matter
    ISO 2431:2011 Paints and varnishes Determination of flow time by use of flow cups
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