• BS 6977:1991

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Specification for insulated flexible cables for lifts and for other flexible connections

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-12-1998

    Language(s):  English

    Published date:  28-02-1991

    Publisher:  British Standards Institution

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

    Foreword
    Committees responsible
    Specification
    Section one. General
    1. Scope
    2. References
    3. Definitions
    4. Voltage designation
    5. Core identification
    6. Marking
    7. Dimensional test methods
    8. Electrical test requirements and test methods
    9. Mechanical strength test requirements and test
        methods
    10. Durability of marking
    Section two. Requirements for rubber-insulated, circular,
    flexible cables with 4 to 48 cores
    11. Harmonized code designations
    12. Rated voltage
    13. Construction
    14. Conductors
    15. Insulation
    16. Core identification
    17. Fillers
    18. Textile braid on core insulation, over assembled
        cores and as overall protection
    19. Sheath
    20. Particular requirements
    21. Testing
    22. Preferred types of cable
    Section three. Requirements for rubber-insulated and
    sheathed, flat, flexible cables with 3 to 18 cores
    23. Rated voltage
    24. Construction
    25. Conductors
    26. Insulation
    27. Core identification
    28. Sheath
    29. Particular requirements
    30. Testing
    Section four. Requirements for PVC-insulated, circular,
    flexible cables with 4 to 72 cores
    31. Rated voltage
    32. Construction
    33. Conductors
    34. Insulation
    35. Core identification
    36. Fillers
    37. Textile braid over assembled cores
    38. Sheath
    39. Particular requirements
    40. Testing
    Section five. Requirements for PVC-insulated, PVC-
    sheathed, flat, flexible cables with 3 to 24 cores
    41. Harmonized code designations
    42. Rated voltage
    43. Construction
    44. Conductors
    45. Insulation
    46. Core identification
    47. Sheath
    48. Particular requirements
    49. Testing
    Section six. Requirements for rubber-insulated, circular
    flexible cables with 36 to 72 cores having strain-bearing
    centre
    50. Rated voltage
    51. Construction
    52. Conductors
    53. Insulation
    54. Core identification
    55. Fillers
    56. Textile braid on core insulation, over assembled
        cores and as overall protection
    57. Particular requirements
    58. Testing
    Appendices
    A. Core identification by numbers
    B. Solderability test
    C. Recommendations for the installation of the cables
        specified in section two: rubber-insulated, circular,
        flexible cables with 4 to 48 cores
    D. Recommendations for the installation of the cables
        specified in section three: rubber-insulated and
        sheathed, flat, flexible cables with 3 to 18 cores
    E. Recommendations for installation of the cables
        specified in section four: PVC-insulated, circular,
        flexible cables with 4 to 72 cores
    F. Recommendations for installation of the cables
        specified in section five: PVC-insulated, PVC-
        sheathed, flat, flexible cables with 3 to 24 cores
    G. Recommendations for installation of the cables
        specified in section six: rubber-insulated, circular,
        flexible cables with 36 to 72 cores having strain-
        bearing centre
    Tables
    1. Particulars of rubber-insulated, circular, flexible
        cables
    2. Preferred designs of rubber-insulated flexible
        cables
    3. Summary of electrical tests for rubber-insulated,
        circular, flexible cables with 4 to 48 cores
    4. summary of non-electrical tests for rubber-insulated,
        circular, flexible cables with 4 to 48 cores
    5. Typical formations for rubber-insulated and sheathed,
        flat, flexible cables
    6. Thickness of insulation and sheath for rubber-
        insulated and sheathed, flat, flexible cables
    7. Summary of electrical tests for rubber-insulated and
        sheathed, flat, flexible cables with 3 to 18 cores
    8. Summary of non-electrical tests for rubber-insulated,
        flat, flexible cables with 3 to 18 cores
    9. Particulars of PVC-insulated, circular, flexible
        cables
    10. Summary of electrical tests for PVC-insulated,
        circular, flexible cables with 4 to 72 cores
    11. Summary of non-electrical tests for PVC-insulated,
        circular, flexible cables with 4 to 72 cores
    12. Thickness of insulation and sheath for PVC-insulated,
        PVC-sheathed, flat, flexible cables
    13. Summary of electrical tests for PVC-insulated, PVC-
        sheathed, flat, flexible cables with 3 to 24 cores
    14. List of non-electrical tests for PVC-insulated,
        PVC-sheathed, flat, flexible cables with 3 to 24
        cores
    15. Summary of electrical tests for rubber-insulated,
        circular, flexible cables with 36 to 72 cores having
        strain-bearing centre
    16. List of non-electrical tests for rubber-insulated,
        circular, flexible cables with 36 to 72 cores having
        strain-bearing centre
    17. Axial marks
    18. Transverse marks
    Figures
    1. Positions for first measurement of insulation
        thickness
    2. Position for measurement of sheath thickness
    3. Positions of point of intersection of the cross-
        wires of the measuring microscope
    4. Static flexibility test
    5. Electrical wiring for test under fire conditions
    6. Sheath thickness of PVC-sheathed flat, flexible
        cables
    7. Axial arrangement of core-numbering marks
    8. Transverse arrangement of core-numbering marks

    Abstract - (Show below) - (Hide below)

    Rubber-insulated and PVC-insulated flat and circular multicore cables for lifts and similar applications, 300/500 V and 450/750 V.

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

    Committee GEL/20/17
    Development Note Supersedes BS 6977(1981), 90/23886 DC, 91/25846 DC, 92/31413 DC and 96/214494 DC. (03/2007)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

    BS 7655-3.1(1993) : 1993 INSULATING AND SHEATHING MATERIALS FOR CABLES - PVC INSULATING COMPOUNDS - HARMONIZED TYPES
    BS 7655-1.1(1993) : 1993 INSULATING AND SHEATHING MATERIALS FOR CABLES - ELASTOMERIC INSULATING COMPOUNDS - HARMONIZED TYPES
    BS 7655-2.1(1993) : 1993 INSULATING AND SHEATHING MATERIALS FOR CABLES - ELASTOMERIC SHEATHING COMPOUNDS - HARMONIZED TYPES
    BS 7655-4.1(1993) : 1993 INSULATING AND SHEATHING MATERIALS FOR CABLES - PVC SHEATHING COMPOUNDS - HARMONIZED TYPES
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