AS/NZS 1802 Type 275 1.1 kV UNDERGROUND MINE CABLE
Feichun AS/NZS 1802 Type 275 1.1 kV UNDERGROUND MINE CABLE
Cable description:
Shuttle car cable to AS/NZS 1802.
Application:
These cables are used with high-speed reeling equipment employed on shuttle cars, and are subject to the greatest exertion underground. Cable constructions are designed to resist “corkscrewing” in these arduous conditions.
Approvals:
AS/NZS 1802
Behaviour in flame and fire:
Fire retardant
Temperature range:
Maximum operating temperature: +90°C
Minimum operating temperature: -25 °C
Flexibility:
Flexible
Resistance to:
Chemical exposure: Very good/Frequent
Mechanical impact: Heavy
Water exposure: Immersion/Temporary coverage
Solar radiation and
weather exposure: Suitable for direct exposure
Cable design:
Non-individually screened power cores, three earth cores and one extensible pilot, laid-up, with a semi-conductive fill, reinforced and heavy duty sheathed to 1.1/1.1 kV application.
Core: Metal: tinned copper, three core three earths plus pilot.
Insulation: EPR (R-EP-90) Core colours: red, white, blue
Pilot: One pilot, in the centre of the cable.
Maximum DC resistance;
5.5 Ω/100 m for power conductors up to 35 mm².
3 Ω/100 m for all larger cables.
Earth: Three semiconductive elastomer covered flexible earths, located in the interstices.
Sheath: Semiconductive elastomer filled, with an open weave reinforcement, under a heavy duty HD-85-PCP
Installation conditions:
In free air
Mobile equipment
When mining professionals search for “AS/NZS Type 275 mining cable”, they are usually trying to answer three key questions:
What exactly is Type 275?
Where is it used underground, and how does it differ from other mining cables?
Is it suitable for harsh, high-speed reeling applications such as shuttle cars?
The Feichun AS/NZS 1802 Type 275 1.1 kV Underground Mining Cable is specifically engineered to survive extreme mechanical stress, torsion, and reeling forces found in modern underground coal and hard-rock mines. This article explains its structure, materials, electrical performance, applications, comparisons, and real-world use in South Africa, helping engineers and procurement teams make informed decisions.
What Is AS/NZS 1802 Type 275 1.1 kV Mining Cable Designed For?
AS/NZS Type 275 is a heavy-duty flexible underground mine cable primarily designed for shuttle cars and other mobile reeling equipment.
Unlike static feeder cables, Type 275 must withstand:
Continuous reeling and unreeling at high speeds
Severe mechanical impact and abrasion
Corkscrewing torsion caused by directional changes
Frequent water immersion and chemical exposure
For these reasons, Type 275 cables are regarded as one of the most mechanically robust low-voltage (1.1 kV) mining cables under AS/NZS 1802.
How Does Type 275 Compare with Other AS/NZS Mining Cables?
How Does Type 275 Differ from Type 241 or Type 240?
Feature | Type 275 | Type 241 | Type 240 |
|---|---|---|---|
Primary Use | Shuttle cars, high-speed reeling | Flexible feeders | General mining |
Mechanical Duty | Extreme | High | Medium |
Corkscrew Resistance | Excellent | Good | Moderate |
Pilot Core | Yes | Yes | Optional |
Mobility | Continuous reeling | Semi-mobile | Mostly fixed |
Conclusion:
If your application involves continuous movement and reeling, Type 275 is the preferred solution.
Where Is AS/NZS Type 275 Used in South African Mines?
Typical Underground Applications
Shuttle cars in coal mines
Mobile loading equipment
Reeling power systems
High-impact trailing cable environments
South Africa Case Study: Mpumalanga Coal Mine
In a high-production underground coal mine in Mpumalanga, shuttle cars operating in wet roadways experienced frequent cable failures due to torsional stress. After upgrading to Type 275 shuttle car cables, the mine reported:
Reduced cable replacement frequency
Improved uptime of mobile equipment
Enhanced safety through reliable pilot monitoring
This aligns with South African mining priorities of productivity, safety, and compliance.
What Installation Conditions Should Be Considered for Type 275?
Where Can Type 275 Be Installed?
Free-air installations
Mobile underground equipment
Temporary water-covered areas
What Are Best-Practice Installation Tips?
Avoid tight bending radii during initial installation
Use properly sized cable reeling drums
Regularly inspect pilot core continuity
Prevent sharp-edge contact at transition points
Correct installation can significantly extend service life, especially in high-duty shuttle car operations.
Is Type 275 Fire-Safe and Environmentally Resistant?
Yes. Type 275 cables are:
Fire retardant
Resistant to oils, chemicals, and moisture
Suitable for direct solar exposure (surface transitions)
Capable of temporary immersion without insulation degradation
This makes them suitable for mixed underground-to-surface operational zones.
Frequently Asked Questions (FAQ)
Is Type 275 suitable for fixed installations?
Type 275 is optimised for mobile and reeling equipment. For fixed feeders, other AS/NZS types may be more cost-effective.
Can Type 275 operate continuously at 90°C?
Yes, provided installation and current loading comply with AS/NZS 1802 guidelines.
Why does Type 275 use three earth conductors?
Multiple earths improve:
Fault current capacity
Mechanical redundancy
Earth continuity reliability in harsh environments
Is Type 275 compliant with South African mining requirements?
While certified to AS/NZS 1802, Type 275 is widely accepted in South African operations where equivalent or superior performance is required, subject to mine-specific approval.
How Do You Choose the Right Size of Type 275 Cable?
Selection depends on:
Shuttle car motor power
Cable length
Voltage drop limits
Mechanical handling requirements
Engineering recommendation:
For most underground shuttle cars, 25–50 mm² provides the best balance between flexibility, durability, and electrical performance.
Why Choose Feichun AS/NZS Type 275 Mining Cable?
Feichun Type 275 offers:
Proven heavy-duty construction
Reliable performance in harsh underground conditions
Compliance with AS/NZS 1802
Design tailored for high-speed reeling applications
Need a Reliable Shuttle Car Cable Solution?
If you are specifying or upgrading underground shuttle car cables, Feichun AS/NZS 1802 Type 275 provides a robust, safety-focused solution for demanding mining environments.
👉 Contact Feichun today to request:
Technical datasheets
Size selection support
Application-specific recommendations
Email: Li.wang@feichuncables.com
