Type 241 Flexible Rubber Screened Mining Cable
The Type 241 Flexible Rubber Screened Mining Cable is a medium-voltage, rubber-insulated cable engineered for underground coal mining and general mining applications. It features tinned annealed copper conductors, EPR insulation, and a semi-conductive thermosetting screen for excellent electrical performance. The cable’s three screened power cores and three earth cores are arranged with a central pilot core for enhanced safety and control. With an HD-85-PCP extra heavy-duty outer sheath, it delivers oil resistance, flame retardancy, and superior mechanical durability. Compliant with AS/NZS 1802 and related standards, it ensures reliable operation under harsh mining conditions. The Type 241 is specifically suited for high-power trailing applications in coal and metalliferous mines, powering longwall shearers, continuous miners, shuttle cars, loaders, and face equipment with maximum safety and uptime.
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Voltage Rating
Type 241.1 - 1.1kV
Type 241.3 - 3.3kV
Type 241.6 - 6.6kV
Type 241.11 - 11kV - Temperature Rating -25°C to +90°C
Construction
Technical Specifications
Quality Control
Application
Construction
Type 241 Flexible Rubber Screened Mining Cable 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
Semi-conductive thermosetting compound
Cable Assembly
Three screened power and three pilot cores laid up with right hand direction on cradle separator with central pilot core
Cradle Separator
Semi-conductive thermosetting compound
Inner Sheath
Semi-conductive thermosetting compound
Earth Covering
Semi-conductive thermosetting compound
Reinforcing Braid
Polyamide Yarns
Sheath
HD-85-PCP Thermosetting compound - extra heavy duty, oil resistance and flame retardant
Sheath Colour
BIack
Manufacturer Standard
AS/NZS 1802:2018, AS/NZS 1125:2001
Application
Type 241 Flexible Rubber Screened Mining Cable is suitable for general and underground coal mining applications. Common uses include power feeder cables for continuous miners, pump cables, and general power supply cables.
Technical Specifications
Type 241 Flexible Rubber Screened Mining Cable
Type 241 Flexible Rubber Screened Mining Cable
|
No. Of Cores |
POWER CONDUCTOR | EARTH CONDUCTOR |
NOMINAL DIAMETER mm |
NOMINAL WEIGHT kg/km |
|||
|
NOMINAL CROSS SECTIONAL AREA |
NOMINAL DIAMETER mm |
NOMINAL INSULATION THICKNESS mm |
NO. & NOMINAL DIAMETER OF WIRES n x mm |
NOMINAL DIAMETER mm |
|||
| 3 | 6 | 3.4 | 1.5 | 18/0.3 | 1.5 | 29.2 | 113 |
| 3 | 10 | 4.0 | 1.5 | 27/0.3 | 1.8 | 31.5 | 130 |
| 3 | 16 | 5.6 | 1.6 | 42/0.3 | 2.2 | 33.4 | 178 |
| 3 | 25 | 7.2 | 1.6 | 66/0.3 | 3.1 | 39.3 | 235 |
| 3 | 35 | 8.3 | 1.6 | 90/0.3 | 3.7 | 41.9 | 289 |
| 3 | 50 | 9.8 | 1.7 | 120/0.3 | 4.4 | 46.4 | 333 |
| 3 | 70 | 11.9 | 1.8 | 110/0.4 | 5.2 | 51.9 | 478 |
| 3 | 95 | 12.5 | 2.0 | 110/0.4 | 5.2 | 56.8 | 584 |
| 3 | 120 | 15.2 | 2.1 | 150/0.4 | 6.5 | 61.3 | 708 |
| 3 | 150 | 17.1 | 2.3 | 135/0.4 | 5.8 | 68.0 | 844 |
| 3 | 185 | 19.0 | 2.5 | 177/0.4 | 6.5 | 73.1 | 1029 |
| 3 | 240 | 21.8 | 2.8 | 216/0.4 | 7.4 | 83.0 | 1317 |
| 3 | 16 | 5.6 | 3.0 | 42/0.3 | 2.2 | 46.4 | 285 |
| 3 | 25 | 7.2 | 3.0 | 66/0.3 | 3.1 | 50.5 | 334 |
| 3 | 35 | 8.3 | 3.0 | 90/0.3 | 3.7 | 52.5 | 388 |
| 3 | 50 | 9.8 | 3.0 | 120/0.3 | 4.4 | 57.0 | 465 |
| 3 | 70 | 11.9 | 3.0 | 110/0.4 | 5.2 | 62.3 | 602 |
| 3 | 95 | 12.5 | 3.0 | 135/0.4 | 5.8 | 66.7 | 712 |
| 3 | 120 | 15.2 | 3.0 | 150/0.4 | 6.5 | 71.1 | 844 |
| 3 | 150 | 17.1 | 3.0 | 216/0.4 | 7.4 | 76.3 | 986 |
| 3 | 185 | 19.0 | 3.0 | 252/0.4 | 8.0 | 82.4 | 1177 |
| 3 | 240 | 21.8 | 3.0 | 324/0.4 | 9.0 | 88.6 | 1340 |
| 3 | 16 | 5.6 | 5.0 | 42/0.3 | 2.2 | 56.8 | 383 |
| 3 | 25 | 7.2 | 5.0 | 66/0.3 | 3.1 | 61.3 | 427 |
| 3 | 35 | 8.3 | 5.0 | 90/0.3 | 3.7 | 64.3 | 512 |
| 3 | 50 | 9.8 | 5.0 | 120/0.3 | 4.4 | 67.9 | 610 |
Quality Control
Type 241 Flexible Rubber Screened Mining Cable
Raw Material Test
Raw Material Test for Type 241 Flexible Rubber Mining Cable prioritizes extra-heavy-duty mining safety. Steps include: Certification Verification: Tinned copper conductors and EPR/rubber sheath meet AS/NZS 2802 standards for severe mining use. Conductor Testing: Tensile, elongation, conductivity, tin coating analysis. Insulation Evaluation: EPR dielectric strength, thermal stability, hot set test. Shielding Check: Tinned copper braid coverage (>80%), conductivity, braid integrity. Sheath Testing: Enhanced flame retardancy, extreme abrasion/crush resistance, oil tolerance, and mechanical properties. Batch Rejection: Non-compliant quarantined. Approved materials ensure the Type 241 Flexible Rubber Mining Cable's extreme durability and performance.
Process inspection
Process Inspection for Type 241 Flexible Rubber Mining Cable enforces extra-heavy-duty quality. The procedure features: Stranding Control: Uniform tinned copper stranding. Insulation Extrusion: EPR applied with defect detection. Braid Application: High-coverage tinned copper monitored. Sheath Extrusion: Extra-heavy-duty rubber applied with adhesion checks. Ongoing Checks: Resistance, integrity, diameter monitoring. Correction: Immediate fixes. This guarantees the Type 241 Flexible Rubber Mining Cable excels in severe mining trailing applications.
Finished Product
Finished Product Test validates the Type 241 Flexible Rubber Mining Cable for deployment. Steps include: Inspection: Visual/dimensional/marking verification. Electrical: Resistance, insulation, withstand, partial discharge. Mechanical: Bending, tensile, enhanced crush/abrasion resistance. Performance: Flame retardancy, oil resistance, thermal aging. Shielding: Coverage, transfer impedance checks. Release: Only passing Type 241 Flexible Rubber Mining Cable approved for reliable severe underground mining use.
Application
The Type 241 Flexible Rubber Mining Cable excels in severe underground coal and metalliferous mining for high-stress trailing/reeling power to longwall shearers, continuous miners, shuttle cars, loaders, drills, and face equipment requiring extra-heavy-duty, screened, flame-retardant cable with superior mechanical protection and EMI shielding.
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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