Overview of AS/NZS 1802 Type 240 Cable

The AS/NZS 1802 Type 240 1.1-11 kV Composite Screened Cable is a heavy-duty flexible mining and industrial power cable specifically engineered for demanding mobile and fixed equipment applications in underground mines, tunnelling operations, pump stations, and mineral processing environments.

Designed in accordance with the Australian and New Zealand mining cable standard AS/NZS 1802, Type 240 cable combines:

• Three screened power conductors

• One central pilot conductor

• Three auxiliary pilot cores

• Composite earth screen

• Heavy-duty PCP sheath

This construction provides excellent electrical safety, mechanical durability, flame retardancy, and operational reliability in harsh mining conditions.

The cable is widely used as:

• Feeder cable between transformer and gate-end box

• Continuous miner trailing cable

• Pump feeder cable

• Underground mining distribution cable

• Mobile mining equipment power cable

Its three separate pilot conductors allow long cable runs without compromising pilot control protection system resistance limitations, making it particularly suitable for large underground mining networks.

Key Features of Type 240 Mining Cable

Designed to AS/NZS 1802 Standard

Manufactured fully in compliance with AS/NZS 1802, ensuring suitability for Australian and New Zealand underground mining operations.

Voltage Ratings from 1.1 kV to 11 kV

Available in multiple medium-voltage configurations:

• 1.1/1.1 kV

• 3.3 kV

• 6.35/11 kV

• 6.6/11 kV

Suitable for both low-voltage and medium-voltage mining power distribution systems.

Composite Screened Construction

Features a composite earth screen consisting of:

• Tinned annealed copper wires

• Polyester yarn reinforcement

This design improves electrical protection, grounding continuity, and mechanical robustness.

Excellent Flexibility

Designed for mobile mining equipment and portable power systems where repeated handling and movement occur.

For applications requiring even higher flexibility, Type 241 cable is typically recommended.

Heavy-Duty PCP Sheath

The HD-85-PCP outer sheath offers excellent resistance to:

• Abrasion

• Mechanical impact

• Oil and chemicals

• Moisture and temporary immersion

• UV exposure and weathering

Flame Retardant Performance

The cable is fire retardant, improving operational safety in underground mining environments.

Suitable for Harsh Mining Conditions

Engineered for:

• Underground coal mines

• Hard rock mining

• Continuous miner systems

• Pump installations

• Mobile mining machinery

• Industrial feeder systems

Construction Details of AS/NZS 1802 Type 240 Cable

Conductor

• Material: Tinned copper

• Configuration: Three power cores plus central pilot

• Flexible stranded construction for mining applications

Tinned copper conductors improve corrosion resistance in humid underground environments.

Conductor Separator Tape

1.1/1.1 kV Versions

• Polyester separator tape

3.3 kV and Above

• Semiconductive separator tape

The semiconductive tape helps control electrical stress in medium-voltage applications.

Insulation

• Material: EPR (R-EP-90)

• Maximum operating temperature: +90°C

EPR insulation provides:

• Excellent dielectric performance

• High thermal stability

• Superior flexibility

• Good moisture resistance

Insulation Tape and Screening

1.1/1.1 kV

• Proofed textile insulation tape

3.3 kV and Above

• Semiconductive insulation screen

The screened construction improves electrical field control and operational safety in medium-voltage systems.

Composite Screen (Earth)

The composite screen consists of:

• Tinned annealed copper wires

• Polyester yarn

Benefits include:

• Effective grounding

• Enhanced fault current handling

• Mechanical reinforcement

• Improved cable reliability

Pilot Conductors

Three separate pilot conductors are installed in the interstitial cavities.

Construction includes:

• Elastomer covering

• Proofed taped design

The pilot system supports:

• Monitoring circuits

• Earth continuity systems

• Protection relay functions

• Long-distance control systems

Outer Sheath

• Material: Heavy-duty HD-85-PCP

• Reinforced sheath option available upon request

The PCP sheath delivers exceptional resistance to:

• Abrasion

• Cuts and tearing

• Mining chemicals

• Water ingress

• UV exposure

Operating Conditions

Installation Applications

The AS/NZS 1802 Type 240 cable is suitable for installation in:

• Free air

• Underground ducts

• Mobile mining equipment

• Mining machines

• Pump systems

• Transformer feeder systems

Why Type 240 Cable is Widely Used in Mining

Long-Distance Pilot System Capability

The inclusion of three pilot conductors enables reliable operation of protection and monitoring systems over long distances.

Excellent Mechanical Strength

The heavy-duty PCP sheath and composite screen provide strong resistance to:

• Crushing

• Abrasion

• Impact

• Dragging

• Harsh underground conditions

Reliable Medium-Voltage Performance

The screened EPR-insulated construction ensures stable electrical performance in medium-voltage mining distribution systems.

Suitable for Mobile Mining Equipment

Its flexible design allows installation on:

• Continuous miners

• Shuttle cars

• Pump systems

• Mobile substations

• Portable mining equipment

Typical Mining Applications

The AS/NZS 1802 Type 240 cable is commonly used in:

• Underground coal mining

• Hard rock mining

• Continuous mining systems

• Longwall operations

• Pump feeder circuits

• Transformer-to-gate-end connections

• Mobile mining machinery

• Mineral processing plants

The AS/NZS 1802 Type 240 1.1-11 kV Composite Screened Power Conductor Screen Pilot Cable is a proven heavy-duty mining cable solution designed for demanding underground power distribution applications.

With its:

• Flexible tinned copper conductors

• EPR insulation system

• Composite earth screen

• Three pilot conductors

• Flame-retardant PCP sheath

• Excellent resistance to mechanical stress, chemicals, water, and UV exposure

Type 240 cable delivers reliable long-term performance in harsh mining and industrial environments where safety, durability, and operational continuity are critical.