Steel Wire Armoured (SWA) Cable

Premium Steel Wire Armoured Cable for Outdoor & Underground Power Installations

Steel Wire Armoured (SWA) cable is a robust and durable power cable specifically designed for outdoor, underground and industrial electrical installations where additional mechanical protection is required. At Wires Direct, we supply high-quality armoured cable suitable for domestic, commercial and industrial projects throughout the UK.

Featuring a protective layer of galvanised steel wire armour, SWA cable provides enhanced resistance against impact, crushing and environmental damage, making it the preferred choice for external power distribution and underground installations.

Whether you're powering a garden office, workshop, outbuilding, garage, shed, EV charger or commercial premises, our armoured cable range delivers reliable performance and long service life.

What Is Steel Wire Armoured Cable?

Steel Wire Armoured cable consists of:

• Copper conductors

• XLPE insulation

• PVC bedding

• Galvanised steel wire armour

• PVC outer sheath

The steel wire armour provides additional mechanical protection while also serving as an earth path in many installations when installed correctly.

Common Uses for SWA Cable

Underground Power Supplies

Armoured cable is commonly buried underground to supply power safely between buildings and external electrical installations.

Garden Buildings & Outdoor Structures

Ideal for:

• Garden offices

• Summer houses

• Workshops

• Garages

• Sheds

• Outdoor lighting systems

EV Charger Installations

Many EV charging installations utilise armoured cable due to its durability and suitability for external environments.

Commercial & Industrial Applications

SWA cable is widely used in factories, warehouses, farms and commercial premises where additional protection is required.

Available Core Configurations

2 Core Armoured Cable

Typically used for single-phase power applications.

3 Core Armoured Cable

Commonly used where a separate earth conductor is required or for specific control applications.

4 Core Armoured Cable

Suitable for three-phase installations.

5 Core Armoured Cable

Often used for three-phase power systems with additional control or neutral conductors.

Why Choose Our Armoured Cable?

• Manufactured to recognised British standards

• Suitable for underground installation

• Designed for outdoor environments

• Excellent mechanical protection

• Available in multiple conductor sizes

• Suitable for domestic, commercial and industrial projects

• Competitive trade pricing

• Fast UK delivery

Installation Advice

Steel Wire Armoured cable should always be installed in accordance with current BS 7671 Wiring Regulations.

When installing underground:

• Use appropriate burial depths

• Install warning tape where required

• Use suitable glands and termination kits

• Ensure correct earthing arrangements

• Follow manufacturer installation guidelines

Installation should be carried out by a suitably qualified electrician.

Why Buy Armoured Cable from Wires Direct?

At Wires Direct, we supply reliable armoured cable for projects of all sizes. Whether you're powering a garden building, installing an EV charger or completing a large commercial installation, our SWA cable offers dependable performance and excellent value.

We focus on supplying quality electrical cable at competitive prices while providing fast UK delivery and excellent customer service.

Frequently Asked Questions

What is SWA cable used for?

SWA cable is used for outdoor, underground and industrial electrical installations where additional mechanical protection is required.

Can armoured cable be buried directly in the ground?

Yes. Steel Wire Armoured cable is commonly installed underground, although installation methods should comply with current regulations and site requirements.

What does SWA stand for?

SWA stands for Steel Wire Armoured, referring to the protective layer of galvanised steel wires surrounding the cable.

Is armoured cable waterproof?

SWA cable is designed for outdoor use and provides excellent environmental protection, but all cable terminations must be installed correctly using suitable glands and accessories.

What size armoured cable do I need?

The correct cable size depends on factors including load, installation method, voltage drop and circuit length. Always consult a qualified electrician before selecting cable sizes.