Armoured cables deliver exceptional strength, safety, and performance where durability matters most. Ideal for powering heavy machinery, underground installations, or any setup that demands reliable protection, these cables are built to handle the harshest conditions.
In this guide, we’ll explore practical armoured cable uses, key armoured cable specifications, and expert insights to help you select the best fit for your next installation.
Table of Contents
- What Are Armoured Cables?
- Types of Armoured Cables
- Typical Armoured Cable Uses
- Key Armoured Cable Specifications
- Choosing the Right Armoured Power Cable
- Frequently Asked Questions
- Conclusion
What Are Armoured Cables?
Armoured cables are electrical cables reinforced with an extra layer of protection, usually made from steel wire or tape. This armouring shields the conductors inside from physical damage, making them ideal for installations exposed to pressure, impact, or harsh surroundings.
Compared to standard cables, an armoured power cable can handle more demanding conditions, including direct burial underground, external environments, and areas prone to mechanical stress.
They’re used across industries where safety and durability are top priorities.
Types of Armoured Cables
Armoured cables come in various constructions, depending on their application and voltage rating. Here are some of the most common types:
1. Steel Wire Armoured (SWA) Cables
SWA cables are the go-to choice for low-voltage power networks. These feature a galvanised steel wire armour layer and are commonly used in industrial and outdoor installations.
2. Aluminium Wire Armoured (AWA) Cables
Designed for single-core cables to prevent magnetic interference. Lighter and often used in power distribution.
3. LSZH Armoured Cables
These come with a Low Smoke Zero Halogen sheath for environments like hospitals or airports, where smoke and toxic gases are a concern during fire.
4. Fire-Resistant Armoured Cables
These maintain circuit integrity in extreme heat and are often used in emergency systems like alarms, fire pumps, and exit lighting.
Each type serves a different need, and knowing what your project requires can save time and avoid costly mistakes.
Typical Armoured Cable Uses
Armoured cable uses span across sectors such as construction, energy, utilities, and transport. Here’s where they shine:
- Underground power and control systems
- Outdoor lighting and signage
- Industrial equipment and machinery wiring
- Temporary power setups for construction
- Renewable energy farms and substations
- Data and telecom cable runs exposed to mechanical risks
In short, when the environment gets tough, armoured cables step up with added resilience and reliability.
Key Armoured Cable Specifications
Understanding armoured cable specifications helps ensure the cable meets both the installation environment and local safety standards.
Common Specs Include:
- Voltage Rating: Most standard armoured power cables handle 600/1000V, suitable for low-voltage systems.
- Conductor Material: Copper is typical, but aluminium is also available for cost-sensitive projects.
- Insulation Type: XLPE (Cross-linked Polyethylene) is widely used for its thermal and electrical properties.
- Sheath Options: PVC for general use or LSZH for low-emission environments.
- Armour Type: Steel wire (SWA) or aluminium wire (AWA), depending on core configuration.
Always cross-check specifications with national or international standards like BS 5467 or IEC equivalents.
Choosing the Right Armoured Power Cable
When selecting an armoured power cable, consider:
- Application environment: Is it underground, exposed, or in a fire-risk zone?
- Voltage requirements: Match the cable’s rating to your system’s demands.
- Compliance: Make sure it meets relevant safety and building regulations.
- Cable size: Based on load capacity and installation length.
- Installation method: Direct burial, conduit, or fixed to structures.
Consulting with cable experts can help you balance safety, cost, and performance without over- or under-specifying.
Frequently Asked Questions
1. Can armoured cables be used indoors?
Yes, especially in environments where cables may be damaged or exposed, such as warehouses or utility rooms.
2. Are armoured cables waterproof?
While the armouring provides protection, the waterproofing depends on the sheath type. For full water resistance, choose cables with suitable sheath materials.
3. Can I install armoured power cables without conduit?
Yes. Armoured cables are often installed directly into the ground or clipped to surfaces without additional conduit, depending on local regulations.
4. What’s the difference between SWA and AWA cables?
SWA is used for multi-core cables and offers mechanical protection. AWA is used for single-core cables to avoid magnetic interference.
5. Do armoured cables need earthing?
Yes. The metallic armour should be properly earthed to ensure safety in case of faults or short circuits.
Conclusion
Armoured cables combine strength, protection, and performance to support reliable electrical installations across a wide range of industries. Their reinforced design makes them ideal for demanding conditions where standard cables just won’t hold up.
At Batt Cables, we stock a full range of armoured power cables, complete with expert support and custom solutions tailored to your project needs. Explore our armoured cable range today and get the right spec, first time.
