Product Overview
The Type 440 series mining cable is primarily engineered as a flexible feeder and trailing cable for power supply to heavy machinery and equipment in mining operations. Its distinctive design includes three large pilot conductors and a central semi-conductive cradle that provides essential support and protection for the power cores, enhancing mechanical durability in demanding environments. Covering both low and medium voltage ranges, this cable delivers reliable performance across diverse mining applications.
Standards
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AS/NZS 2802:2000 – Electric cables – Reeling and trailing for mining and general use
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AS/NZS 1125 – Conductors in insulated electric cables and flexible cords
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AS/NZS 3808 – Insulating and sheathing materials for electric cables
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AS/NZS 5000.1 – Electric cables – Polymeric insulated – For working voltages up to and including 0.6/1 (1.2) kV
Applications
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Flexible feeder and trailing cable for power supply to mining machinery and equipment.
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Suitable for both low voltage and medium voltage applications from 1.1 kV up to 22 kV.
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Power supply to draglines, shovels, continuous miners, and other heavy equipment.
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Industrial applications requiring robust, flexible cables with multiple pilot conductors.
Specifications
| Parameter | Details |
|---|---|
| Voltage Rating | 1.1 kV to 22 kV |
| Low Voltage | Yes (1.1 kV variants) |
| Medium Voltage | Yes (3.3 kV to 22 kV variants) |
| Conductor Type | Flexible stranded tinned annealed copper |
| Insulation | Ethylene Propylene Rubber (EPR) |
| Sheath | Heavy duty Polychloroprene (PCP) |
| Standards | AS/NZS 2802:2000, AS/NZS 1125, AS/NZS 3808, AS/NZS 5000.1 |
| Key Feature | Three large pilots + central semi-conductive cradle |
Construction
The Type 440 cable features a robust construction designed for maximum durability and reliable performance in mining environments.
| Component | Description |
|---|---|
| Conductors (3×) | Flexible stranded tinned annealed copper conductors. |
| Conductor Screen | – 1.1/1.1 kV: Polyester barrier tape. – 3.3/3.3 kV and above: Polyester barrier tape plus extruded semi-conductive tape. |
| Insulation | Ethylene Propylene Rubber (EPR). |
| Insulation Screen | Semi-conductive tape applied over insulation. |
| Composite Screen (Earth Conductor) | Tinned annealed copper braiding interwoven with polyester yarn, providing combined earthing and screening function. |
| Cradle Separator | Semi-conductive Polychloroprene (PCP) central cradle that supports and protects the three power cores. |
| Interstitial Pilots (3×) | Three EPR-insulated flexible stranded tinned copper conductors (large pilots), positioned in interstices between power cores. |
| Sheath | Heavy duty Polychloroprene (PCP) sheath, providing excellent abrasion, oil, and weather resistance. |
Key Features
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Superior Core Protection: Central semi-conductive PCP cradle provides robust support and protection for power cores, reducing damage from mechanical stress.
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Multiple Large Pilots: Three EPR-insulated pilot conductors enable comprehensive monitoring and control capabilities.
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Wide Voltage Range: Available from 1.1 kV (low voltage) through 22 kV (medium voltage) to suit diverse equipment requirements.
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Composite Screening: Tinned copper braid interwoven with polyester yarn provides effective electrical shielding combined with mechanical strength.
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Voltage-Dependent Screening: Enhanced conductor screening for higher voltage ratings (3.3 kV and above) with additional extruded semi-conductive layer.
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Dual Application: Suitable for both low and medium voltage trailing applications.
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Full Compliance: Manufactured and tested to AS/NZS 2802:2000 and related standards.