Steel Wire Armoured Cable (SWA)

FAQs

What is steel wire armoured (SWA) cable?

Steel wire armoured (SWA) cable is a durable electrical cable designed for mechanical protection and resistance to external damage. It features plain stranded copper conductors, XLPE insulation and a steel wire armour protective layer, making it suitable for underground installations, construction sites, and power networks.

What are the key benefits of SWA cable?

SWA cable provides excellent mechanical protection, ensuring durability in harsh environments. It is designed to withstand mechanical stress, direct burial and exposure to moisture and environmental conditions, making it ideal for mains electricity supply and underground systems.

Where is SWA cable commonly used?

Steel wire armoured cable is widely used in power networks, industrial settings, construction sites and external electrical installations. It is suitable for laying in cable ducting and other areas requiring additional protection against damage.

What is the difference between steel wire armour and aluminium wire armour?

While steel wire armour (SWA) is typically used for low-voltage and mains power applications, aluminium wire armour (AWA) is used for single-core cables, as steel can interfere with the electric current in single-core installations.

What are the different conductor sizes available?

SWA cables come in various conductor sizes, from smaller sizes for domestic applications to larger cables for industrial and commercial use. Always check the voltage rating and power requirements before selecting the appropriate cable type.

Can SWA cable be used outdoors?

Yes, SWA cable is suitable for outdoor use due to its black PVC sheath, which offers weather resistance and mechanical protection. It is commonly used in exposed areas, underground installations, and environments requiring low smoke emissions.

Does SWA cable provide insulation?

Yes, SWA cable features XLPE insulation, which provides high-temperature resistance and durability. The polyvinyl chloride (PVC) outer sheath adds further protection against environmental factors.

Can SWA cable be buried directly underground?

Yes, SWA cable is designed for direct burial without the need for additional conduit or protection. However, cable ducting can be used for extra security in high-traffic areas or locations with higher mechanical stress.

What voltage ratings are available for SWA cable?

SWA cable is available in various voltage ratings, making it suitable for different power applications, including mains electricity supply, industrial power distribution, and low-voltage installations.

What accessories do I need for SWA cable installation?

For proper installation, you may require glands, cleats, and terminations to secure the cable. These accessories help maintain electrical safety and mechanical durability.

Is SWA cable resistant to environmental conditions?

Yes, the outer sheath and armoured construction make SWA cable resistant to moisture, mechanical damage, and harsh environmental conditions, ensuring long-term durability.

How do I choose the right SWA cable for my project?

Consider the voltage rating, conductor size, number of cores, and installation environment. If you need assistance, our team at YESSS Electrical can help you find the perfect SWA cable for your needs.

Where can I buy SWA cable?

You can browse our full range of steel wire armoured cables at YESSS Electrical. We offer fast, free delivery on all orders over £50 ex. VAT, ensuring you get the right cable for your project without delay.