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AS/NZS 1747:2003
[Available Superseded]Reeling, trailing and feeder cables used for mining - Repair, testing and fitting of accessories
Specifies standard procedures for the repair and testing of reeling, trailing and feeder cables used in mining applications.
Published: 16/06/2003
Pages: 52
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Referenced documents
1.3 Definitions
2 Evaluation before repair and history record
2.1 Requirements
2.2 History record
2.3 Details of cable to be recorded
2.4 Visual examination
2.5 Pre‑repair tests
2.6 Practicability of repair
3 Repair procedures for cables
3.1 Compatibility of cables to be joined
3.2 Use of cleaning solvents
3.3 Joining by ferrules
3.3.1 Ferrules
3.3.2 Solder and flux
3.3.3 Technique
3.4 Joining by exothermic welding
3.5 Joining by hard soldering
3.6 Joining pilot conductors (all types of cable)
3.6.1 Single central (extensible) pilot conductors
3.6.2 Multiple central pilot conductors
3.6.3 Interstitial pilot conductors
3.7 Joining power conductors of all reeling and trailing cables
3.7.1 Power conductors having less than 19 bunches
3.7.2 Power conductors having 19 or more bunches
3.8 Joining power conductors of feeder cables
3.9 Joining earth conductors (excluding earth screens)
3.10 Replacement of insulation or covering over conductors
3.11 Joining individual metallic or composite earth screens
3.11.1 General
3.11.2 Repair of screen by ferrules
3.11.3 Repair of metallic screen without ferrules
3.12 Replacement of semiconductive elastomers
3.13 Lay-up of core assembly
3.14 Repair of inner sheath
3.15 Joining pliable armour
3.16 Replacement of sheath (inner or outer sheath)
3.17 Vulcanizing
4 Inspection and replacement of plugs and other cable accessories
4.1 Plug inspection
4.2 Plug and tail inspection (Surface mining applications)
4.2.1 Cables fitted with plugs
4.2.2 Cables fitted with tails
4.3 Plug fitting
4.3.1 General
4.3.2 Power cores
4.3.3 Earth screens and conductors
4.3.4 Pilot cores
4.3.5 Sheath protrusion and clamping
4.4 Compounds
4.5 Flameproofing
4.6 Suitability for applications (Surface mining applications)
5 Testing
5.1 General
5.2 Test equipment
5.3 Tests to be carried out
5.3.1 Underground mining cables
5.3.2 Surface mining cables
5.3.3 Fitting accessories to cables
5.4 High voltage fault location test
5.4.1 General
5.4.2 Equipment
5.4.3 Application of voltage
5.4.4 Authorization to exceed appropriate voltage pulse and number of pulses given in Table 5.4
5.5 Continuity and phase rotation tests
5.6 Insulation resistance test
5.6.1 General
5.6.2 Testing of power conductors
5.6.3 Testing of pilot conductors
5.6.4 Requirements
5.7 High voltage proof test
5.8 Symmetrical load test
5.9 Partial break test
5.10 Tests for integrity of outer sheath
5.10.1 General
5.10.2 Spark test (underground mining cables)
5.10.3 Spark test (surface mining cables)
5.11 Sheath hardness
6 Identification of repairs
6.1 Method of marking
6.2 Information to be marked
7 Temporary sheath repairs
7.1 General
7.2 Performance criteria
7.3 Marking of temporary repairs
7.4 Monitoring of temporary repairs
Appendix A
Appendix B
B1 Construction
B2 Length
B3 Internal cross‑sectional dimension
B4 Wall thickness
Appendix C
C1 Solder
C2 Silver solder
C3 Flux
Appendix D
D1 General
D2 Preparation
D3 Mould set up
D4 Welding
D5 Removal of excess weld from the conductor
D6 Quality of welded joint
Appendix E
E1 General soldering information
E2 Procedure
Appendix F
F1 Insulation or covering
F1.1 Type
F1.2 Tape over insulation
F2 Semiconductive elastomer core screens and sheath component
F3 Reinforcement
F4 Sheath material
F5 Vulcanizing conditions for insulation and sheaths
F6 Storage of repair tapes
F7 Incompatible materials
F8 Identification of repair materials
Appendix G
G1 General
G2 Initial test
G3 Sheath test
G4 Cable repairer
G5 Final testing
Appendix H
H1 High voltage proof test unit
H2 Ohmic resistance and continuity test unit
H3 Partial break test unit
H4 Spark test unit for testing the integrity of sheath
H5 Insulation testing unit
H6 Sheath hardness test unit
H7 Symmetrical load test
Appendix I
I1 General
I2 High voltage proof test unit
I3 High voltage fault location test unit
I4 Continuity test unit
I5 Partial break test unit
I6 Spark test unit for testing integrity of sheath
I7 Insulation test unit
I8 Sheath hardness test unit
I9 Symmetrical load test unit
Appendix J
J1 Scope
Amendment control sheet
AS/NZS 1747:2003
Amendment No. 1 (2005)
Revised text
Cited references in this standard
Content history
[Current]
[Superseded]
[Superseded]
DR 02288
AS/NZS 1747:2003 REC:2020