Type 441 Flexible Semi-Conductive Screened Mining Cable
The Type 441 Flexible Semi-Conductive Screened Mining Cable is a medium-voltage rubber-insulated cable engineered for harsh mining applications. It features tinned annealed copper conductors, EPR insulation, and semi-conductive screening for optimal electrical performance. Designed with three earth/protective cores and one pilot core, it is ideal for powering draglines, shovels, and drills, as well as for trailing and reeling uses in mining and industrial environments. Its HD-CSP extra heavy-duty outer sheath delivers oil resistance, flame retardancy, and high mechanical durability, ensuring long service life in demanding operational conditions. Compliant with AS/NZS 2802 and related standards, this cable provides reliable performance under extreme stress. The flexible construction of the Type 241 mining cable allows repeated bending and movement without compromising electrical performance. Manufactured under a strict quality management system, the cable undergoes comprehensive raw material testing, process inspection, and finished product testing to ensure compliance with mining standards and long-term operational reliability.
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Voltage Rating
Type 441.1 - 1.1kV
Type 441.3 - 3.3kV
Type 441.6 - 6.6kV
Type 441.11 - 11kV
Type 441.22 - 22kV - Temperature Rating -25°C to +90°C
Construction
Technical Specifications
Quality Control
Application
Construction
Type 441 Flexible Semi-Conductive Screened Mining Cable Constrution
Conductor
Tinned annealed copper wires
Insulation Screen
Ethylene propylene rubber type R-EP-90 and XR-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
Cable Assembly
Three screened power and three pilot cores laid up with right hand direction on cradle separator with central pilot core
Inner Sheath
Semi–conductive thermosetting compound
Outer Sheath
HD-CSP (Heavy duty Chlorosulphonated Polyethylene) extrra heavy duty, oil resistant and flame retardant
Sheath Colour
Black
Manufacturer Standard
AS/NZS 2802: 2000, AS/NZS 1125:2001, AS/NZS 2802:2003
Armour
Polyamide yarns
Application
Type 441 Flexible Semi-Conductive Screened Mining Cable is used in applications requiring three earth/protective cores and one pilot core, such as powering draglines, shovels, and drills. It is suitable for both trailing and reeling applications, as well as various other industrial uses.
Technical Specifications
Type 441 Flexible Semi-Conductive Screened Mining Cable
Type 441 Flexible Semi-Conductive Screened Mining Cable
| 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+3 | 6 | 1.5 | 33/0.3 | 2.3 | 3.8 | 28.6 | 111 |
| 3+3 | 10 | 1.5 | 51/0.3 | 3.6 | 3.8 | 31.2 | 136 |
| 3+3 | 16 | 1.6 | 81/0.3 | 5.7 | 3.9 | 34.1 | 176 |
| 3+3 | 25 | 1.6 | 81/0.3 | 5.7 | 4.2 | 37.8 | 231 |
| 3+3 | 35 | 1.6 | 81/0.3 | 5.7 | 4.4 | 41.1 | 274 |
| 3+3 | 50 | 1.7 | 120/0.3 | 8.5 | 4.9 | 45.8 | 349 |
| 3+3 | 70 | 1.8 | 110/0.4 | 13.8 | 5.3 | 52.2 | 481 |
| 3+3 | 95 | 2 | 135/0.4 | 16.9 | 5.8 | 56.6 | 579 |
| 3+3 | 120 | 2.1 | 165/0.4 | 21.2 | 6.3 | 62.6 | 724 |
| 3+3 | 150 | 2.3 | 216/0.4 | 27.1 | 6.7 | 68.3 | 881 |
| 3+3 | 185 | 2.5 | 252/0.4 | 32.1 | 7.3 | 74.8 | 1049 |
| 3+3 | 240 | 2.8 | 214/0.5 | 42 | 8 | 83.4 | 1329 |
| 3+3 | 300 | 3 | 280/0.5 | 55 | 8.7 | 93.1 | 1629 |
| 3+3 | 16 | 2.2 | 81/0.3 | 5.7 | 4.6 | 43 | 241 |
| 3+3 | 25 | 2.2 | 81/0.3 | 5.7 | 4.9 | 46.8 | 304 |
| 3+3 | 35 | 2.2 | 81/0.3 | 5.7 | 5.2 | 50.2 | 359 |
| 3+3 | 50 | 2.4 | 120/0.3 | 8.5 | 5.7 | 55.4 | 446 |
| 3+3 | 70 | 2.4 | 110/0.4 | 13.8 | 6 | 60.3 | 571 |
| 3+3 | 95 | 2.4 | 135/0.4 | 16.9 | 6.4 | 63.5 | 659 |
| 3+3 | 120 | 2.4 | 165/0.4 | 21.2 | 6.5 | 68.5 | 794 |
| 3+3 | 150 | 2.4 | 216/0.4 | 27.1 | 6.6 | 72.6 | 931 |
| 3+3 | 185 | 2.4 | 252/0.4 | 32.1 | 6.7 | 77.4 | 1080 |
Quality Control
Type 441 Flexible Semi-Conductive Screened Mining Cable
Raw Material Test
Raw material testing for the Type 241 Flexible Rubber Screened Mining Cable focuses on conductor quality, screening effectiveness, and rubber compound durability. Copper conductors and screening wires are tested for electrical and mechanical properties. Rubber insulation and sheath materials are evaluated for thermal stability, oil resistance, abrasion resistance, and flame retardancy. Only qualified raw materials are approved for production.
Process inspection
Process inspection covers all production stages of the Type 241 mining cable, including conductor stranding, rubber insulation extrusion, copper screening application, and sheath extrusion. Continuous monitoring and spark testing ensure electrical and mechanical integrity. All inspection results are documented and reviewed. Any deviation from specified parameters triggers immediate corrective actions, ensuring stable production quality and reliable performance of the Type 241 mining cable.
Finished Product
Finished product testing validates the overall quality and safety of the Type 241 Flexible Rubber Screened Mining Cable before delivery. Electrical tests include conductor resistance measurement, insulation resistance testing, and voltage withstand testing to confirm compliance with rated requirements. Mechanical tests assess tensile strength, bending performance, impact resistance, and abrasion resistance under simulated mining conditions. Thermal aging tests confirm long-term durability, while oil and moisture resistance tests evaluate environmental suitability. Dimensional inspections verify conductor size, insulation thickness, screen coverage, sheath thickness, and overall cable geometry. Final visual inspection ensures correct marking, smooth surface finish, and defect-free construction. Only cables that pass all finished product tests are approved for shipment.
Application
The Type 241 Flexible Rubber Screened Mining Cable is used for power supply to underground and surface mining equipment such as conveyors, loaders, cutting machines, and other mobile mining machinery operating in harsh environments.
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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