In modern industry, infrastructure construction, and commercial buildings, the safety, reliability, and long-term stability of power transmission are crucial. Steel Wire Armoured Cables (SWA Cable) are preferred in key applications such as mines, photovoltaic power plants, industrial plants, ports, and airports due to their superior mechanical strength, environmental adaptability, and long service life.
By adding a steel wire or steel tape armour layer outside the conductor, SWA cables provide enhanced mechanical protection while maintaining excellent electrical performance and reliability. This article provides a comprehensive overview of SWA cable features, specifications, and application scenarios, and compares them with commonly used XLPE SWA cables, offering technical reference for engineering design, procurement, and installation.
What is a Steel Wire Armoured Cable (SWA Cable)?
A Steel Wire Armoured Cable is a high-strength power cable with an additional layer of steel wire or steel tape armour outside the conductor. Its main structure includes:
- Conductor Layer: Pure copper or aluminum ensures low resistance and excellent conductivity.
- Insulation Layer: PVC or XLPE materials provide heat resistance, aging resistance, and moisture protection.
- Inner Sheath: Protects the conductor and insulation from mechanical damage during installation or transportation.
- Steel Wire Armour (SWA): Provides tensile and compressive strength, rodent protection, and resistance to external damage.
- Outer Sheath: Water-resistant, corrosion-resistant, and UV-resistant, suitable for outdoor, underground, and harsh environments.
SWA cables are widely used for long-distance power transmission, industrial plants, tunnels, and photovoltaic power plants. They are designed to withstand mechanical impact, environmental stress, and long-term operational demands, ensuring stable power supply.
SWA Cable Specifications and Application Scenarios
Common Specifications
| Parameter | Description |
|---|---|
| Voltage Rating | 0.6/1kV, 1.8/3kV, 6/10kV, 8.7/15kV |
| Conductor Size | 16mm² – 1000mm² |
| Insulation Material | PVC, XLPE |
| Armour Type | Single steel wire armour (SWA), steel tape armour (STA) |
| Number of Cores | Single-core, multi-core |
| Outer Sheath | PVC, LSZH, UV-resistant, corrosion-resistant |
Typical Applications
- Industrial Plants: Resistant to mechanical impact, suitable for cranes, motors, and large machinery.
- Mines and Tunnels: Moisture-resistant, pressure-resistant, and wear-resistant, ensuring safe underground power supply.
- Photovoltaic Power Plants: Long-distance DC/AC transmission, UV and heat resistant.
- Commercial Buildings: Underground or wall duct installation, preventing accidental damage.
- Ports and Airports: Corrosion-resistant, mechanically robust, ensuring stable power for critical facilities.
Comparison of SWA Cable and XLPE SWA Cable
To highlight the advantages of SWA cable, XLPE SWA cable is selected for comparison.
| Feature | PVC SWA Cable | XLPE SWA Cable |
|---|---|---|
| Insulation Material | PVC | XLPE (Cross-linked Polyethylene) |
| Temperature Rating | 70℃ (long-term) | 90℃ (long-term), 250℃ short-circuit |
| Aging Resistance | Standard | Excellent, UV and chemical resistant |
| Electrical Performance | Standard | Low dielectric loss, low resistance |
| Suitable Environment | Indoor, light industrial | Industrial, outdoor, harsh conditions |
| Mechanical Performance | Good | Outstanding, enhanced tensile and compressive strength |
| Typical Applications | General power supply | Heavy-duty industrial supply, PV inverter connections, underground installation |
XLPE SWA cables provide higher heat resistance, chemical resistance, and long-term reliability than traditional PVC SWA cables, especially suitable for high-load, long-distance, and harsh-environment power transmission.
Product Advantage: We Professionally Produce IEC Standard Wires and Cables, Covering a Full Range
Dongguan Greater Wire & Cable Co., Ltd. operates a complete IEC standard cable production line, providing a full range of products from low to high voltage:
1.PVC and XLPE insulation versions are available
2.Single-core, multi-core, copper, and aluminum conductor combinations
3.Suitable for industrial, commercial, mining, and photovoltaic projects
4.Advanced manufacturing ensures conductor continuity and consistent insulation
5.Supports special environment customization, such as high-temperature resistance, corrosion protection, and enhanced fire rating
Compliant with the IEC standard
SWA cables strictly follow IEC standards:
·Industrial plants and data center power supply meet safety codes
·Underground installation in commercial buildings complies with voltage and mechanical protection standards
·Long-distance power transmission in PV and wind projects performs reliably
Full Range of Specifications, Covering Standard Models from 16mm²
The company offers a wide range of sizes from 16mm² to 1000mm²:
·Single-core and multi-core designs meet diverse project needs
·Various insulation and armour thicknesses for mechanical strength requirements
·Quick specification matching for small to large industrial projects
Delivery Capability: Fast Shipping for Large and Small Orders
·High-efficiency production lines ensure on-time delivery of bulk orders
·Flexible small-batch orders meet urgent project needs
·Global logistics partnerships guarantee smooth international transport
Service Advantage: Professional Technical Support and Worry-Free Pre-Sale and After-Sale Assistance
·Detailed technical parameters provided for cable selection
·Installation and construction guidance ensures smooth project execution
·Rapid after-sales response ensures long-term stable cable operation
International Cooperation: Years of Manufacturing and Export Experience, Global Partners
·Serving markets in Asia, the Americas, Europe, and the Middle East
·Successful involvement in large-scale photovoltaic, power, and infrastructure projects
·Providing internationally certified products and customized services
·Supporting special material, length, color, and performance customization
IEC Certification for All Cables
·Conductors and electrical performance meet international standards
·Insulation and sheath materials are eco-friendly and aging-resistant
·Suitable for different installation environments, ensuring long-term reliability
Full Color Options and Comprehensive Customization
·Materials: PVC, XLPE, copper, or aluminum conductors
·Specifications: Single-core, multi-core, various cross-sections
·Customizable length, color, performance, marking, and packaging
·Meeting project-specific requirements for optimized construction management
Installation Examples and Applications
1.Photovoltaic Power Plant Projects
·XLPE SWA cables used for inverter DC input lines
·Long-distance installation, UV and heat resistant
·Ensures stable power transmission and reduced energy loss
2.Industrial Plant Power Supply
·SWA cables for cranes and heavy machinery
·Resistant to mechanical impact and wear, extending service life
3.Ports and Airport Underground Installation
·Corrosion, moisture, and mechanical damage resistant
·Ensures safe and reliable power supply for critical infrastructure
Contact Information
Dongguan Greater Wire & Cable Co., Ltd.
·Tel/WhatsApp/WeChat: +86 135 1078 4550 / +86 136 6257 9592
·Email: manager01@greaterwire.com