Type 450 Flexible Copper Screened Mining Cable With Two Earth And One Pilot Core
The Type 450 Flexible Copper Screened Mining Cable is a medium-voltage, heavy-duty mining cable designed for power supply in draglines, slow reeling, and industrial applications requiring two earth cores and one pilot core. It features tinned annealed copper conductors, EPR (XR-EP-90) insulation, and a tinned copper/polyamide braid screen for electrical shielding. The double-layer HD-PCP sheath provides extra heavy-duty protection, including oil resistance, flame retardancy, and chemical durability. Available in voltage ratings from 3.3kV to 33kV, the cable meets AS/NZS 2802 and related standards, ensuring high performance and reliability in harsh mining environments.
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Voltage Rating
Type 450.3 - 3.3kV
Type 450.6 - 6.6kV
Type 450.11 - 11kV
Type 450.22 - 22kV
Type 450.33 - 33kV - Temperature Rating -25°C to +90°C
Construction
Technical Specifications
Quality Control
Application
Construction
Type 450 Flexible Copper Screened Mining Cable With Two Earth And One Pilot Core Constrution
Conductor
Tinned annealed copper wires
Insulation
EPR (Ethylene Propylene Rubber) type XR-EP-90
Conductor Screen
Semi-conductive tape + thermosetting compound
Insulation Screen
Semi-conductive thermosetting compound
Cable Assembly
Three screened power, two earth and one pilot core laid up with right hand direction on the rubber centre filler
Screen
Tinned copper/polyamide braid
Sheath
Double layer HD-PCP (Heavy Duty Polychloroprene) - extra heavy duty, oil resistant and flame retardant. An open braid of polyamide yarns between layer of rubber
Sheath Colour
Black
Manufacturer Standard
AS/NZS 2802: 2000, AS/NZS 1125:2001, AS/NZS 2802:2003
Application
Type 450 Flexible Copper Screened Mining Cable is used for power supply in various mining and industrial applications where two earth and one pilot cores are needed. It is suitable for draglines and slow reeling operations requiring copper screened cables.
Technical Specifications
Type 450 Flexible Copper Screened Mining Cable With Two Earth And One Pilot Core
Type 450 Flexible Copper Screened Mining Cable With Two Earth And One Pilot Core
| No. Of Cores |
NOMINAL CONDUCTOR AREA mm² |
THICKNESS OF INSULATION mm |
CORE SCREEN SIZE mm |
AREA OF SCREEN mm² |
NOMINAL THICKNESS OF SHEATH mm |
NOMINAL DIAMETER mm |
NOMINAL WEIGHT kg/km |
| 3+2+1 | 16 | 2.2 | 128/0.25 | 6.3 | 4.5 | 42.8 | 266 |
| 3+2+1 | 25 | 2.2 | 118/0.3 | 8.3 | 4.8 | 46.9 | 338 |
| 3+2+1 | 35 | 2.2 | 127/0.3 | 9 | 5.1 | 50.4 | 392 |
| 3+2+1 | 50 | 2.4 | 141/0.3 | 10 | 5.6 | 55.7 | 487 |
| 3+2+1 | 70 | 2.4 | 117/0.4 | 14.7 | 6 | 61.3 | 637 |
| 3+2+1 | 95 | 2.4 | 123/0.4 | 15.5 | 6.3 | 64.5 | 734 |
| 3+2+1 | 120 | 2.4 | 135/0.4 | 17 | 6.4 | 69.2 | 867 |
| 3+2+1 | 150 | 2.4 | 144/0.4 | 18.1 | 6.6 | 73.5 | 1022 |
| 3+2+1 | 185 | 2.4 | 144/0.4 | 26.7 | 6.7 | 78.3 | 1175 |
| 3+2+1 | 240 | 2.4 | 156/0.5 | 28.3 | 6.9 | 84.7 | 1741 |
| 3+2+1 | 16 | 3 | 118/0.3 | 8.3 | 5 | 47.7 | 317 |
| 3+2+1 | 25 | 3 | 129/0.3 | 9.1 | 5.2 | 51.3 | 382 |
| 3+2+1 | 35 | 3 | 139/0.3 | 9.8 | 5.5 | 54.8 | 443 |
| 3+2+1 | 50 | 3 | 149/0.3 | 10.5 | 5.9 | 58.9 | 534 |
| 3+2+1 | 70 | 3 | 123/0.4 | 15.5 | 6.3 | 64.3 | 682 |
| 3+2+1 | 95 | 3 | 130/0.4 | 16.3 | 6.4 | 67.1 | 771 |
| 3+2+1 | 120 | 3 | 141/0.4 | 17.7 | 6.5 | 71.9 | 912 |
| 3+2+1 | 150 | 3 | 144/0.4 | 18.1 | 6.6 | 76.2 | 1073 |
| 3+2+1 | 185 | 3 | 144/0.4 | 18.1 | 6.8 | 81 | 1222 |
| 3+2+1 | 240 | 3 | 144/0.5 | 27.7 | 7 | 87.5 | 1592 |
| 3+2+1 | 25 | 5 | 120/0.4 | 15.1 | 6.3 | 62.8 | 542 |
| 3+2+1 | 35 | 5 | 127/0.4 | 16 | 6.4 | 65.8 | 601 |
| 3+2+1 | 50 | 5 | 135/0.4 | 17 | 6.5 | 69.4 | 692 |
| 3+2+1 | 70 | 5 | 144/0.4 | 18.1 | 6.6 | 73.9 | 826 |
| 3+2+1 | 95 | 5 | 144/0.4 | 18.1 | 6.7 | 76.7 | 926 |
| 3+2+1 | 120 | 5 | 144/0.5 | 18.1 | 6.9 | 81.8 | 1082 |
| 3+2+1 | 150 | 5 | 139/0.5 | 27.3 | 7 | 86.2 | 1263 |
Quality Control
Type 450 Flexible Copper Screened Mining Cable With Two Earth And One Pilot Core
Raw Material Test
Raw Material Test for Type 409 Flexible Copper Screened Mining Cable with Central Pilot prioritizes mining safety and pilot functionality. Steps include: Certification Verification: Tinned copper, EPR, rubber sheath, and pilot core meet AS/NZS 2802 standards. Conductor & Pilot Testing: Tensile, elongation, conductivity, tin coating analysis. Insulation Evaluation: EPR dielectric strength, thermal stability, hot set test. Shielding & Pilot Check: Tinned copper braid coverage, conductivity; pilot continuity/insulation. Sheath Testing: Flame retardancy, abrasion resistance, oil tolerance, and mechanical properties. Batch Rejection: Non-compliant quarantined. Approved materials ensure the Type 409 Flexible Copper Screened Mining Cable with Central Pilot's performance and safety.
Process inspection
Process Inspection for Type 409 Flexible Copper Screened Mining Cable with Central Pilot enforces mining-grade quality. The procedure features: Stranding Control: Uniform tinned copper and pilot stranding. Insulation Extrusion: EPR applied with defect detection. Screening & Pilot: Precise braid and pilot integration. Sheath Extrusion: Heavy-duty rubber applied with adhesion checks. Ongoing Checks: Resistance, integrity, diameter, pilot continuity. Correction: Immediate fixes. This guarantees the Type 409 Flexible Copper Screened Mining Cable with Central Pilot excels in mining trailing with pilot safety.
Finished Product
Finished Product Test validates the Type 409 Flexible Copper Screened Mining Cable with Central Pilot for deployment. Steps include: Inspection: Visual/dimensional/marking verification. Electrical: Resistance, insulation, withstand, partial discharge, pilot continuity. Mechanical: Bending, tensile, abrasion resistance. Performance: Flame retardancy, oil resistance, thermal aging. Shielding & Pilot: Coverage, transfer impedance, pilot functionality. Release: Only passing Type 409 Flexible Copper Screened Mining Cable with Central Pilot approved for reliable underground mining use.
Application
The Type 409 Flexible Copper Screened Mining Cable with Central Pilot is suited for underground coal and metalliferous mining trailing/reeling power to continuous miners, shuttle cars, longwall equipment, drills, loaders, and mobile machinery requiring screened, flame-retardant cable with central pilot core for earth continuity monitoring and enhanced safety.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
Wires and Cables packaging (1)
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What are the advantages of power cables and overhead lines?(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people; (2) The maintenance workload is small and frequent inspections are not required; (3) No need to erect towers; (4) Help improve power factor.
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Which aspects should be considered when choosing the cross section of a power cable?(1) The long-term allowable working current of the cable; (2) Thermal stability once short circuited; (3) The voltage drop on the line cannot exceed the allowable working range.
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What are the measures for cable fire prevention?(1) Use flame-retardant cables; (2) Use fireproof cable tray; (3) Use fireproof paint; (4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.; (5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.
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What should be paid attention to during the transportation and handling of cables?(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat. (2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.
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What inspections should be carried out for the acceptance of cable lines?(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear; (2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements; (3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements; (4) Good grounding; (5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted; (6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.
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