With the rapid development of industrial buildings, commercial high-rises, subways, tunnels, and mining infrastructure, the safety of power systems has become increasingly critical. In these key environments, fire is one of the most common and destructive hazards. Cables, as essential power transmission components, play a direct role in ensuring safe evacuation and equipment protection during a fire.
Fire resistant cables with a 110°C continuous operating temperature are widely recognized for their long-term high-temperature performance, making them the preferred choice in global markets, especially in Australia and New Zealand. This article will explain the technical principles, characteristics, specifications and applications of fire-resistant cables to help customers select and purchase them.
What Are Fire Resistant Cables
Fire resistant cables are designed to maintain conductivity and insulation integrity even under fire conditions, ensuring critical power systems and emergency circuits continue to operate.
Application Scenarios
- Elevators and fire protection systems in high-rise buildings
- Tunnel and subway lighting and signaling systems
- Industrial and mining equipment power supply
- Data centers and critical power infrastructure
Core Function
Fire resistant cables ensure that even when outer layers are damaged by flames, electricity supply continues to key systems such as fire alarms, emergency lighting, and firefighting equipment.
Technical Analysis of 110°C Continuous Operating Temperature
Definition of Temperature Rating
A 110°C continuous operating temperature refers to the cable's ability to safely carry its rated current over the long term without damaging insulation or sheathing. Unlike short-term high temperatures during initial fire stages or short circuits, this rating ensures long-term safe operation.
Material and Design Factors
- Insulation Materials: High-temperature materials such as XLPE, X-HF-110, and HFS-110-TP can withstand 110°C long-term.
- Sheath Materials: FR-PVC and Elastomer provide additional heat resistance and fire protection.
- Structural Design: Multi-strand copper conductors, shielding layers, and fillers optimize heat dissipation, enhancing overall cable longevity and safety.
Standards and Certifications
- SAA Certification: Complies with Australian and New Zealand electrical safety standards.
- International Standards: IEC 60332-1, AS/NZS 5000 series.
Advantages of 110°C Rating
| Advantage | Description |
|---|---|
| Safety & Reliability | Long-term operation under high-temperature environments |
| Stable Performance | Insulation resists aging, ensuring reliable power supply |
| Broad Compatibility | Suitable for commercial, industrial, mining, and transportation systems |
Features of Fire Resistant Cables
- Fire Resistance: Maintains conductivity during fire, ensuring critical circuits remain operational.
- Flame Retardancy: Self-extinguishing to limit fire spread.
- Low Smoke & Low Toxicity: Minimal smoke and harmful gases during combustion, protecting personnel.
- Heat & Aging Resistance: Insulation materials resist high temperatures over long-term use.
- Mechanical Strength: Resistant to bending and abrasion, suitable for drag chains, industrial machinery, and mining environments.
Common Fire Resistant Cable Specifications
Fire resistant cables come in various conductor materials, insulation types, core numbers, and sheathing combinations. Typical specifications include:
| Cable Type | Conductor Material | Insulation Material | Rated Temperature | Application |
|---|---|---|---|---|
| Orange Circular Cable | Copper | XLPE | 110°C | Buildings, Outdoor |
| TPS Cable | Copper | FR-PVC | 110°C | Industrial, Mining |
| Medium Voltage Cable | Copper/Aluminum | XLPE/FR | 90~110°C | High Voltage Supply |
| Fire Rated Cable | Copper | X-HF-110 | 110°C | Critical Fire Protection Circuits |
| Elastomer Cable | Copper | Elastron | 110°C | Drag Chains, Mobile Equipment |
| Heavy Duty Cable | Copper | FR-PVC | 110°C | Industrial Machinery, Mining |
- Specification Range: From 1.5mm² to 300mm², with multi-core, multi-shield, and multi-sheath customization options.
- Standardized Models: Compliant with SAA certification and Australian/New Zealand standards.
How to Choose Fire Resistant Cables by Specification
Selection Criteria
- Rated Current: Determine conductor cross-section based on load.
- Installation Environment: Indoor, outdoor, direct burial, or drag chain.
- Mechanical Requirements: Consider abrasion resistance, tensile strength, or flexibility.
Selection Example Table
| Scenario | Recommended Cable | Reference Size | Special Requirements |
|---|---|---|---|
| High-rise Elevator | Elastomer Cable | 1.5~10mm² | Frequent bending, high abrasion |
| Tunnel Lighting | Fire Rated Cable | 2.5~35mm² | Flame retardant, low smoke |
| Industrial Mining | Heavy Duty Cable | 16~300mm² | Mechanical damage resistance, waterproof |
| Data Center | VSD Cable | 1.5~10mm² | Low noise, superior shielding |
Installation and Precautions
- Avoid overloading or frequent bending of the cable.
- Protect cable terminations according to standards.
- Choose appropriate sheathing and protection measures for different environments.
Dongguan Greater Wire & Cable Co., Ltd. Product & Service Advantages
1.Product Range
- Comprehensive SAA-certified high-performance cables including Orange Circular Cable, TPS Cable, Medium Voltage Cable, VSD Cable, Fire Rated Cable, Elastomer Cable, Heavy Duty Cable, Ordinary Duty Cable, Mining Cable, Neutral Screen Cable, Instrumentation Cable.
2.Market Compatibility
- Compliant with Australian, New Zealand, and Oceania electrical standards.
3.Full Range of Specifications
- Elastomer Cable covers standard sizes from 1.5mm², meeting diverse project requirements.
4.Delivery Capability
- Fast delivery, supporting both large and small batch orders.
5.Service Advantages
- Professional technical support and full pre-sale/post-sale assistance.
6.International Collaboration Experience
- Years of manufacturing and export experience, with partners worldwide.
7.Certification Assurance
- All cables SAA-certified, ensuring safety and reliability.
8.Customization Services
- Materials, sizes, lengths, colors, performance, marking, and packaging fully customizable.
Customer Consultation & Purchasing Guidance
No matter the project size, we provide professional technical support and dedicated service. Contact us for consultation and purchasing:
Dongguan Greater Wire & Cable Co., Ltd.
- Tel/WhatsApp/Wechat: +86 135 1078 4550 / +86 136 6257 9592
- Email: manager01@greaterwire.com