• BS 7741(1994) : AMD 8959

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    SPECIFICATION FOR INSULATING HOLLOW TUBES FOR ELECTRICAL PURPOSES

    Available format(s): 

    Superseded date:  15-12-1995

    Language(s): 

    Published date:  23-11-2012

    Publisher:  British Standards Institution

    Sorry this product is not available in your region.

    Add To Cart

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

    Committees responsible
    National foreword
    Section 1. General
    1. Scope
    2. Normative references
    3. Definitions
    4. Classification
    Section 2. Technical characteristics
    5. Materials
    6. Diameters of tubes
    Section 3. Type tests
    7. General
    8. Visual inspection and dimensional check
    9. Dielectric tests
    10. Mechanical tests
    11. Mechanical fatigue tests
    Section 4. Routine tests and sampling tests
    12. Routine tests
    13. Sampling tests
    14. Additional tests not indicated
    Section 5. Special clauses
    15. Marking
    16. Modification
    17. Acceptance
    Annexes
    A. (normative) Dielectric tests before and after
         exposure to humidity
    B. (normative) Dielectric wet test
    C. (normative) Mechanical tests
    D. (normative) Routine tests
    E. (normative) Sampling procedure
    F. (informative) Acceptance tests
    Tables
    1. Preferred diameters
    2. Number of lengths of tubes required for tests
    3. Tests results
    4. Category reinforced: Values of Fd, f and Fr for
         bending test
    5. Category standard: Values of Fd, f and Fr for
         bending test
    6. Category light: Values of Fd, f and Fr for bending
         test
    7. Categories reinforced and standard: Values of Cd,
         ad, and Cr for torsion test
    8. Category light: Values of Cd, ad and Cr for torsion
         test
    9. Values of Fc and Fi for crush test
    E.1 Classification of defects
    E.2 Sampling plan for major defects
    Figures
    A.1 Test arrangement
    A.2 Assembly diagram
    A.3 Constructional drawing for guard electrodes
    A.4 Constructional drawing for guard electrodes, parts
         A and B
    A.5 Constructional drawing for guard electrode parts
         according to test-piece diameter
    B.1 Test arrangement
    B.2 Details of electrode arrangement
    C.1 Bending test - test assembly
    C.2 Bending test - detail of supports
    C.3 Torsion test - Examples for fixing tubes
    C.4 Crushing test
    D.1 Typical test arrangement

    Abstract - (Show below) - (Hide below)

    Applies to insulating tubes made of a synthetic material and meant for tools and equipment for work on systems operating at voltages above 1 kV. Coverage includes definitions, materials, mechanical tests, marking, modification and acceptance. Also gives tables, diagrams and annexes. AMD 8959 RENUMBERS THIS STANDARD

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

    Committee PEL/88
    Development Note Superseded and renumbered by BS EN 61235 (07/2004)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

    BS EN 61219:1994 Live working. Earthing or earthing and short-circuiting equipment using lances as a short-circuiting device. Lance earthing

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

    IEC 60212:2010 Standard conditions for use prior to and during the testing of solid electrical insulating materials
    IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
    IEC 60743:2013 Live working - Terminology for tools, devices and equipment
    IEC 60410:1973 Sampling plans and procedures for inspection by attributes
    IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
    • 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