Type 440 Flexible Copper Screened Mining Cable With Three Pilot Core Interstitial
The Type 440 Flexible Copper Screened Mining Cable is a medium-voltage mining cable designed for heavy-duty applications in draglines, shovels, and large drills.It features tinned annealed copper conductors, EPR insulation, and a flexible copper wire screen for superior electrical shielding. Its three pilot cores allow for enhanced monitoring and control in mining operations. The extra heavy-duty PCP sheath provides oil resistance, abrasion protection, and flame retardancy, making it suitable for harsh mining environments. Compliant with AS/NZS 2802 and related standards, this cable ensures long service life and high mechanical performance in demanding conditions. Its flexible construction allows for repeated bending and movement under harsh operating conditions. The outer sheath provides excellent resistance to abrasion, oil, moisture, impact, and environmental aging. Manufactured under strict quality control procedures, the Type 440 mining cable undergoes comprehensive raw material testing, process inspection, and finished product testing to ensure compliance with mining regulations and long-term performance.
- Voltage Rating 1.1kV to 22kV
- Temperature Rating -25°C to +90°C
Construction
Technical Specifications
Quality Control
Application
Construction
Type 440 Flexible Copper Screened Mining Cable With Three Pilot Core Interstitial Constrution
Conductor
Tinned annealed copper wires
Insulation
EPR (EthyIene PropyIene Rubber) type R–EP–90
Separator/Screen
1.1kV: Paper separator
For other nominal voltages semi-conductive tape+ thermosetting compound over conductors
For other nominal voltages semi-conductive tape+ thermosetting compound over conductors
Insulation Screen
1.1kV: Synthetic tape
From 3.3kV: Semi–conductive thermosetting compound
From 3.3kV: Semi–conductive thermosetting compound
Cable Assembly
Three screened power and three pilot cores laid up with right hand direction on cradle separator
Cradle Separator
Semi–conductive thermosetting compound
Sheath
PCP (PoIychIoroprene) thermosetting compound HD–85–PCP – extra heavy duty, oiI resistance and fIame retardant
Sheath Colour
Black
Manufacturer Standard
AS/NZS 2802: 2000, AS/NZS 1125:2001, AS/NZS 2802:2003
Application
Type 440 Flexible Copper Screened Mining Cable is used for power supply to heavy machinery such as draglines, shovels, and drills requiring three pilot cores. Smaller cable sizes are suitable for drills, hand-held tools, and various industrial equipment.
Technical Specifications
Type 440 Flexible Copper Screened Mining Cable With Three Pilot Core Interstitial
Type 440 Flexible Copper Screened Mining Cable With Three Pilot Core Interstitial
|
NOMINAL CONDUCTOR AREA mm² |
THICKNESS OF INSULATION mm² |
CORE SCREEN SIZE mm |
AREA OF SCREEN mm² |
NOMINAL THICKNESS OF SHEATH mm |
NOMINAL DIAMETER mm |
NOMINAL WEIGHT kg/km |
| 6 | 1.5 | 7/0.25 | 7.2 | 3.8 | 30 | 135 |
| 10 | 1.5 | 7/0.25 | 8.6 | 3.8 | 32.6 | 166 |
| 16 | 1.6 | 7/0.25 | 9.6 | 4 | 35.8 | 204 |
| 25 | 1.6 | 7/0.25 | 11.3 | 4.3 | 39.7 | 269 |
| 35 | 1.6 | 7/0.25 | 12.4 | 4.6 | 43.8 | 324 |
| 50 | 1.7 | 7/0.25 | 14.4 | 5 | 48.4 | 403 |
| 70 | 1.8 | 7/0.25 | 16.5 | 5.4 | 54 | 539 |
| 95 | 2 | 7/0.30 | 21.8 | 6 | 59.4 | 659 |
| 120 | 2.1 | 7/0.30 | 24.7 | 6.4 | 65.2 | 802 |
| 150 | 2.3 | 7/0.40 | 36.9 | 6.9 | 72.2 | 1018 |
| 185 | 2.5 | 7/0.40 | 40.5 | 7.4 | 78.8 | 1198 |
| 240 | 2.8 | 7/0.50 | 57.7 | 8.2 | 88.7 | 1549 |
| 16 | 3 | 7/0.25 | 13.1 | 5.3 | 46.1 | 304 |
| 25 | 3 | 7/0.25 | 14.8 | 5.6 | 50 | 379 |
| 35 | 3 | 7/0.25 | 15.8 | 5.9 | 53.4 | 446 |
| 50 | 3 | 7/0.25 | 17.2 | 6.3 | 57.5 | 524 |
| 70 | 3 | 7/0.25 | 18.6 | 6.6 | 62.4 | 659 |
| 95 | 3 | 7/0.25 | 20.3 | 7.1 | 66.2 | 754 |
| 120 | 3 | 7/0.30 | 27.2 | 7.4 | 71.9 | 914 |
| 150 | 3 | 7/0.40 | 39.6 | 7.8 | 77.9 | 1119 |
| 185 | 3 | 7/0.40 | 42.2 | 8.2 | 83.4 | 1289 |
| 240 | 3 | 7/0.40 | 46.6 | 8.8 | 90.2 | 1559 |
| 16 | 5 | 7/0.25 | 17.2 | 6.4 | 57.3 | 444 |
| 25 | 5 | 7/0.25 | 18.6 | 6.7 | 61.2 | 523 |
| 35 | 5 | 7/0.25 | 18.6 | 7 | 64.6 | 599 |
| 50 | 5 | 7/0.25 | 21.3 | 7.3 | 68.5 | 689 |
| 70 | 5 | 7/0.25 | 23.4 | 7.7 | 73.7 | 834 |
Quality Control
Type 440 Flexible Copper Screened Mining Cable With Three Pilot Core Interstitial
Raw Material Test
Raw material testing forms the foundation of quality assurance for the Type 440 Flexible Copper Screened Mining Cable With Three Pilot Core Interstitial. Copper conductors are tested for electrical conductivity, tensile strength, elongation, and flexibility to ensure stable current transmission and resistance to mechanical fatigue during continuous movement. Copper materials used for the screening layer are inspected for wire diameter consistency, tensile strength, and corrosion resistance to guarantee effective earthing and shielding performance. Insulation compounds are tested for tensile strength, elongation at break, tear resistance, abrasion resistance, and hardness to meet demanding mining conditions.
Process inspection
Process inspection ensures consistent manufacturing quality of the Type 440 Flexible Copper Screened Mining Cable With Three Pilot Core Interstitial throughout all production stages. During conductor stranding, inspections verify strand count, conductor diameter, compactness, and flexibility to meet design specifications. Insulation extrusion is closely monitored, with continuous control of temperature, pressure, and line speed. Insulation thickness, concentricity, and surface quality are measured in real time. Spark testing is applied to detect insulation defects and ensure electrical integrity.
Finished Product
Finished product testing validates the overall quality and safety of the Type 440 Flexible Copper Screened Mining Cable with Three Pilot Core Interstitial before shipment. Electrical tests include conductor resistance measurement, insulation resistance testing, and voltage withstand testing to verify compliance with rated requirements. Screen continuity tests ensure effective earthing and shielding performance. Mechanical tests evaluate tensile strength, bending performance, impact resistance, and abrasion resistance under simulated mining conditions. Thermal aging, oil resistance, and moisture resistance tests confirm long-term durability.
Application
The Type 440 Flexible Copper Screened Mining Cable with three pilot core interstitial is used for power and control supply to underground mining equipment such as continuous miners, shuttle cars, conveyors, and other heavy-duty mobile mining machinery.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
Wires and Cables packaging (1)
Wires and Cables packaging (2)
Wires and Cables packaging (3)
Wires and Cables packaging (4)
Wires and Cables packaging (5)
Wires and Cables packaging (6)
Wires and Cables packaging (7)
Wires and Cables packaging (8)
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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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