SWA cable is essential in electrical installations that require added protection, mechanical strength, and long-lasting performance. These cables are built to handle tough environments and heavy-duty demands, making them a trusted choice across a wide range of commercial, industrial, and residential applications.
This guide covers everything professionals need to know about SWA cable, including standards like SWA cable BS 5467, different cable types, and ideal use cases.
Table of Contents
- What is SWA Cable
- Types of SWA Cable
- Understanding the SWA Cable BS 5467 Standard
- Best Uses for Steel Wire Armoured Cable
- Installation Tips
- Frequently Asked Questions
- Conclusion
What is SWA Cable?
SWA stands for steel wire armoured. These cables are designed with a layer of galvanised steel wires that protect the inner conductors from impact, pressure, and environmental damage. The result is a tough cable that performs reliably in demanding conditions.
An armoured power cable like SWA is commonly used for mains electricity, underground feeds, outdoor lighting, and power networks. It helps reduce the risk of accidental damage and is especially suited for areas exposed to movement, moisture, or pressure.
Types of SWA Cable
SWA cable comes in several forms depending on voltage rating, insulation material, and sheath type. While the armouring layer remains consistent, these features help tailor the cable to different applications.
1. Low Voltage SWA Cable
Used in typical building power systems and control panels. Designed for 600/1000V rating.
2. Fire-Resistant SWA Cable
Provides circuit integrity during fire, ideal for emergency lighting, alarms, and evacuation systems.
3. Aluminium SWA Cable
A cost-effective alternative to copper, used in large installations where weight and cost are factors.
4. LSF and LSZH SWA Cable
Low smoke and fume options for use in enclosed areas such as schools, tunnels, and commercial buildings.
Understanding the SWA Cable BS 5467 Standard
SWA cable BS 5467 is a British Standard that defines the performance requirements of thermosetting insulated armoured cables for power distribution.
Key Features
- XLPE insulation for improved temperature resistance
- Suitable for fixed installation in air, ducts, or directly underground
- Conforms to UK Wiring Regulations
- Rated for 600/1000 volts
- Available in both PVC and LSZH outer sheaths
Choosing a BS 5467-compliant armoured power cable provides peace of mind with certified quality and safety.
Best Uses for Steel Wire Armoured Cable
SWA cables are designed for tough environments and high-risk areas where extra protection is critical. Here are some of the most common use cases:
- Underground power distribution
- Outdoor lighting systems
- Construction and temporary power setups
- Industrial automation and control systems
- Large-scale commercial wiring
They are also commonly found in utility infrastructure, warehouses, and external generators. Their protective steel layer helps prevent faults and damage caused by accidental impact or rodent interference.
Installation Tips
To ensure the best performance from your SWA cable:
- Use compatible brass or metal cable glands that grip the armour properly
- Always earth the steel wire layer for safety compliance
- Follow bending radius recommendations based on the cable size
- Avoid exposing the cable to direct sunlight unless it has a UV-resistant sheath
- Secure cables neatly and avoid unnecessary stress at joints or terminations
Good planning and clean installation extend the cable’s lifespan and reduce the chance of failure.
Frequently Asked Questions
1. Can I use SWA cable indoors?
Yes. SWA cables are suitable for indoor use, especially in industrial areas or places where cables are exposed to impact or tampering.
2. Is SWA cable suitable for outdoor installations?
Absolutely. It can be laid directly in the ground or used outdoors as long as the sheath is rated for UV and water exposure.
3. How do I know if my cable meets BS 5467?
Check the markings on the sheath and confirm with the supplier. A proper SWA cable BS 5467 will meet UK regulations for fixed installations.
4. Is armouring the same as screening?
No. Steel wire armouring provides mechanical protection, while screening typically refers to shielding against electromagnetic interference.
5. What sheath options are available?
PVC is common for general use, but LSZH sheathing is preferred in public or enclosed areas to reduce toxic smoke in case of fire.
Conclusion
SWA cables deliver a strong combination of durability, safety, and reliable performance. They are ideal for electrical installations in commercial, industrial, and heavy-duty environments. Choosing the right steel wire armoured cable, especially those that meet SWA cable BS 5467 standards, helps ensure long-term efficiency and full compliance with UK regulations.
At Batt Cables, we supply a full range of armoured power cable options, including those manufactured to SWA cable BS 5467 standards. Our team is here to help you find the right cable for your next project.Explore our full SWA cable selection here and get expert support for any specification.
