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  • AS 1747-1993

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Reeling, trailing and feeder cables used for mining - Repair and testing

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  30-06-2017

    Language(s):  English

    Published date:  01-01-1993

    Publisher:  Standards Australia

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

    1 - AS 1747-1993 REELING, TRAILING AND FEEDER CABLES USED FOR MINING - REPAIR AND TESTING
    4 - PREFACE
    5 - CONTENTS
    7 - FOREWORD
    8 - SECTION 1 SCOPE AND GENERAL
    8 - 1.1 SCOPE
    8 - 1.2 REFERENCED DOCUMENTS
    9 - 1.3 DEFINITIONS
    9 - 1.3.1 Bunch
    9 - 1.3.2 Cable coupling device
    9 - 1.3.3 Cable repair facility
    9 - 1.3.4 Cable repairer
    9 - 1.3.5 Centre filler
    9 - 1.3.6 Collectively screened cable
    9 - 1.3.7 Composite screen
    9 - 1.3.8 Conductor screen
    9 - 1.3.9 Covered conductor
    9 - 1.3.10 Cradle separator
    9 - 1.3.11 Direction of lay
    10 - 1.3.12 Earth conductor
    10 - 1.3.13 Feeder cable
    10 - 1.3.14 Ferrule
    10 - 1.3.15 History record
    10 - 1.3.16 Individually screened cable
    10 - 1.3.17 Insulation screen
    10 - 1.3.18 Length of lay
    10 - 1.3.19 Multiple (or rope) strand
    10 - 1.3.20 Partial break detection device
    10 - 1.3.21 Pilot core
    10 - 1.3.22 Power core
    10 - 1.3.23 Reeling and trailing cable
    10 - 1.3.24 Restrained plug
    10 - 1.3.25 Restrained receptacle
    10 - 1.3.26 Semiconductive elastomer
    10 - 1.3.27 Sheath
    10 - 1.3.28 Spark test
    10 - 1.3.29 Vulcanizer
    11 - SECTION 2 EVALUATION BEFORE REPAIR AND HISTORY RECORD
    11 - 2.1 REQUIREMENTS
    11 - 2.2 HISTORY RECORD
    11 - 2.3 DETAILS OF CABLE TO BE RECORDED
    11 - 2.4 VISUAL EXAMINATION
    11 - 2.5 PRE-REPAIR TESTS
    11 - 2.6 PRACTICABILITY OF REPAIR
    12 - SECTION 3 REPAIR PROCEDURES FOR CABLES
    12 - 3.1 COMPATIBILITY OF CABLES TO BE JOINED
    12 - 3.2 USE OF CLEANING SOLVENTS
    12 - 3.3 JOINING BY FERRULES
    12 - 3.3.1 Ferrules
    12 - 3.3.2 Solder and flux
    12 - 3.3.3 Technique
    12 - 3.4 JOINING BY WELDING OR SOLDERING
    12 - 3.5 JOINING PILOT CONDUCTOR (all types of cable)
    12 - 3.5.1 Central (extensible) pilot conductor
    12 - 3.5.2 Interstitial pilot conductors
    12 - 3.6 JOINING POWER CONDUCTORS OF ALL REELING AND TRAILING CABLES
    12 - 3.6.1 Power conductors having less than 19 bunches
    13 - 3.6.2 Power conductors having 19 or more bunches
    17 - 3.7 JOINING POWER CONDUCTORS OF FEEDER CABLES
    17 - 3.8 JOINING EARTH CONDUCTORS (EXCLUDING EARTH SCREENS)
    17 - 3.9 REPLACEMENT OF INSULATION OR COVERING OVER CONDUCTORS
    22 - 3.10 JOINING INDIVIDUAL METALLIC OR COMPOSITE EARTH SCREENS
    22 - 3.10.1 General
    22 - 3.10.2 Repair of screen by ferrules
    24 - 3.10.3 Repair of screen without ferrules
    24 - 3.11 REPLACEMENT OF SEMICONDUCTIVE ELASTOMERS
    24 - 3.12 LAY-UP OF CORE ASSEMBLY
    24 - 3.13 REPAIR OF INNER SHEATH
    24 - 3.14 JOINING PLIABLE ARMOUR
    26 - 3.15 REPLACEMENT OF SHEATH (inner or outer sheath)
    29 - 3.16 VULCANIZING
    31 - SECTION 4 REPAIR OF PLUGS
    31 - 4.1 EXAMINATION
    31 - 4.2 PLUG REPLACEMENT
    31 - 4.2.1 General
    31 - 4.2.2 Power cores
    31 - 4.2.3 Earth screens and conductors
    32 - 4.2.4 Pilot cores
    32 - 4.2.5 Sheath protrusion and clamping
    32 - 4.3 COMPOUNDS
    32 - 4.4 FLAMEPROOFING
    33 - SECTION 5 TESTING
    33 - 5.1 GENERAL
    33 - 5.2 TEST EQUIPMENT
    33 - 5.3 HIGH VOLTAGE FAULT LOCATION TEST
    33 - 5.3.1 General
    33 - 5.3.2 Equipment
    33 - 5.3.3 Application of voltage
    33 - 5.3.4 Authorization to exceed appropriate voltage pulse and number of pulses given in Table 5.1
    33 - 5.4 HIGH VOLTAGE PROOF TEST
    34 - 5.5 CONTINUITY AND PHASE ROTATION TESTS
    34 - 5.6 PARTIAL BREAK TEST
    34 - 5.7 SYMMETRICAL LOAD TEST
    35 - 5.8 TESTS FOR INTEGRITY OF OUTER SHEATH
    35 - 5.8.1 General
    35 - 5.8.2 Spark test
    35 - 5.9 INSULATION RESISTANCE TEST
    36 - 5.10 SHEATH HARDNESS
    37 - SECTION 6 IDENTIFICATION OF REPAIRS
    37 - 6.1 METHOD OF MARKING
    37 - 6.2 INFORMATION TO BE MARKED
    38 - APPENDIX A - TYPICAL CABLE HISTORY RECORD
    39 - APPENDIX B - REQUIREMENTS FOR FERRULES
    39 - B1 CONSTRUCTION
    39 - B2 LENGTH
    39 - B3 INTERNAL CROSS-SECTIONAL DIMENSION
    39 - B4 WALL THICKNESS
    40 - APPENDIX C - REQUIREMENTS FOR SOLDER AND FLUX
    40 - C1 SOLDER
    40 - C2 FLUX
    41 - APPENDIX D - REPAIR MATERIALS AND TAPES
    41 - D1 INSULATION OR COVERING
    41 - D1.1 Type
    41 - D1.2 Tape over insulation
    41 - D2 SEMICONDUCTIVE ELASTOMER CORE SCREENS AND SHEATH COMPONENT
    41 - D3 BINDER TAPES USED FOR SHEATH REPAIR
    41 - D4 SHEATH MATERIAL
    42 - D5 VULCANIZING CONDITIONS FOR INSULATION AND SHEATHS
    43 - D6 STORAGE OF REPAIR TAPES
    43 - D7 INCOMPATIBLE MATERIALS
    44 - APPENDIX E - REQUIREMENTS FOR TEST EQUIPMENT
    44 - E1 HIGH VOLTAGE PROOF TEST UNIT
    44 - E2 OHMIC RESISTANCE AND CONTINUITY TEST UNIT
    44 - E3 PARTIAL BREAK TEST UNIT
    44 - E4 SPARK TEST UNIT FOR TESTING THE INTEGRITY OF SHEATH
    44 - E5 INSULATION TESTING UNIT
    44 - E6 SHEATH HARDNESS TEST UNIT
    44 - E7 SYMMETRICAL LOAD TEST
    46 - APPENDIX F - ROUTINE TESTS ON TEST EQUIPMENT
    46 - F1 ORGANIZATION TO UNDERTAKE TESTS
    46 - F2 HIGH VOLTAGE PROOF TEST UNIT
    46 - F3 HIGH VOLTAGE FAULT LOCATION TEST UNIT
    46 - F4 CONTINUITY TEST UNIT
    46 - F5 PARTIAL BREAK TEST UNIT
    46 - F6 SPARK TEST UNIT FOR TESTING INTEGRITY OF SHEATH
    46 - F7 INSULATION TEST UNIT
    46 - F8 SHEATH HARDNESS TEST UNIT
    46 - F9 SYMMETRICAL LOAD TEST UNIT
    47 - APPENDIX G - COMBINED RESISTANCE OF EARTH CONDUCTORS FOR TYPES 275, 280A AND 280B CABLES
    47 - G1 SCOPE

    Abstract - (Show below) - (Hide below)

    Specifies requirements for the repair and testing of cables used in underground coal mines, metalliferous mines, open-cut mines, quarries and dredges.

    Scope - (Show below) - (Hide below)

    This Standard sets out requirements for the repair and testing of cables used in underground coal mines. The requirements of this Standard may apply also to the repair of cables used elsewhere, e.g. metalliferous mines, open cut mines, quarries and dredges.The Standard establishes sound practice for the repair and testing of-(a) reeling and trailing cables used for underground coal mines, metalliferous mines, open-cut mines, quarries and dredges; and(b) feeder cables used for underground coal mines and having insulation and sheath of elastomer.Except for pliable armour, the Standard limits repairs to the use of soldered connections only.The Standard also details the repair of plugs fitted to the cables and to the test equipment used for testing cables.Note: The Standard applies particularly to reeling and trailing cables complying with AS 1802, AS 2802 and the former AS C81, and to feeder cables complying with AS 1972 and the former AS C412, but is not restricted in application to such cables.Where type or code numbers are referred to in the Standard for trailing cables, the numbers are as specified in AS 1802, AS 2802 and the former AS C81.

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

    Committee EL-003
    Document Type Standard
    Publisher Standards Australia
    Status Superseded
    Superseded By
    Supersedes
    Under Revision

    History - (Show below) - (Hide below)

    Under Revision see DR 02288 First published as AS 1747-1975.Second edition 1980.Third edition 1989.Fourth edition 1993. First published as AS 1747-1975. Second edition 1980. Third edition 1989. Fourth edition 1993.

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

    AS 1834.1-1991 Material for soldering Solder alloys (Reconfirmed 2018)
    AS 1660.3-1986 Methods of test for electric cables, cords and conductors - Electrical tests
    AS 1683.15.2-1990 Methods of test for elastomers Durometer hardness (Reconfirmed 2018)
    AS 1125-1993 Conductors in insulated electric cables and flexible cords
    AS 1299-1993 Electrical equipment for coal mines - Flameproof restrained plugs and receptacles
    AS 2380.6-1988 Electrical equipment for explosive atmospheres - Explosion-protection techniques - Increased safety
    AS 2802-1992 Electric cables - Reeling and trailing - For mining and general use (other than underground coal mining)
    AS 2290.1-1990 Electrical equipment for coal mines - Maintenance and overhaul - Maintenance of electrical equipment for hazardous areas
    AS 1972-1976 Cables for use below ground in coal mines (other than trailing cables)
    AS 1300-1989 Electrical equipment for coal mines - Bolted flame-proof cable coupling devices
    AS 1802-1985 Reeling and trailing electric cables for underground coal mining purposes

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

    AS/NZS 3808:2000 Insulating and sheathing materials for electric cables
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