Type 240 Mining Cable – 1.1kV to 11kV Armoured Power Cable – AS/NZS 1802 Compliant

Mining Cables
Description

Product Overview

These Type 240 1.1 to 11kV Mining Cables are specifically engineered for demanding mining operations, primarily serving as feeder cables for power supply to heavy machinery or longwall supply systems. A key design feature is the incorporation of three large pilot cores and large core screens, which together provide for low resistance earthing, enhancing operational safety and electrical performance in harsh mining environments.

Key Standards Compliance:

  • AS/NZS 1802:2003

  • AS/NZS 1125

  • AS/NZS 3808

  • AS/NZS 5000.1

Specifications

Parameter Specification
Voltage Rating 1.1/1.1kV to 11kV (Low to Medium Voltage)
Conductors (3×) Flexible stranded tinned annealed copper
Insulation EPR (Ethylene Propylene Rubber)
Earth Conductor Composite screen: Tinned annealed copper braiding interwove with polyester yarn
Pilot Cores 3 × interstitial EPR insulated flexible stranded tinned copper conductors (large section)
Cradle Separator Semiconductive PCP
Outer Sheath Heavy duty PCP (Polychloroprene)

Construction Details

  1. Conductors (3×): Flexible stranded tinned annealed copper conductors designed for flexibility and corrosion resistance in mobile mining applications.

  2. Conductor Screening:

    • 1.1/1.1kV: Polyester barrier tape.

    • 3.3/3.3kV and above: Polyester barrier tape plus extruded semiconductive tape.

  3. Insulation: EPR (Ethylene Propylene Rubber) insulation providing excellent electrical properties, thermal resistance, and long-term reliability.

  4. Insulation Screen: Semiconductive tape applied over the insulation for stress control.

  5. Composite Screen (Earth Conductor): Tinned annealed copper braiding interwoven with polyester yarn, serving as both a combined earth conductor and an effective electrical screen. The large screen area contributes to low resistance earthing.

  6. Interstitial Pilots (3×): Three large-section, EPR insulated flexible stranded tinned copper conductors positioned in the cable interstices. These large pilots enhance control, monitoring, and earth continuity capabilities.

  7. Cradle Separator: Semiconductive PCP (Polychloroprene) fillers maintain core geometry, provide mechanical separation, and ensure electrical stress distribution.

  8. Outer Sheath: Heavy duty PCP (Polychloroprene) sheath providing comprehensive protection against abrasion, moisture, crushing, and the aggressive contaminants typical in mining environments.

Standards Compliance

This cable is designed, manufactured, and tested to meet the following Australian/New Zealand standards:

  • AS/NZS 1802:2003 - Electric cables - Reeling and trailing - For mining applications

  • AS/NZS 1125 - Conductors in insulated electric cables and flexible cords

  • AS/NZS 3808 - Insulating and sheathing materials for electric cables

  • AS/NZS 5000.1 - Electric cables - Polymeric insulated - For working voltages up to and including 0.6/1 (1.2) kV

Typical Applications

  • Feeder cables for power supply to heavy mining machinery

  • Longwall mining supply systems

  • Underground and surface mining operations requiring low resistance earthing

  • Applications where large pilot cores are needed for enhanced control and monitoring

  • Mobile mining equipment and transportable substations