What is Armoured Cable?

Armoured cables offer significant advantages in terms of protection, durability, and reliability. With their ability to withstand challenging conditions, these cables are widely used in various industries and outdoor installations. While they may come at a higher cost and have installation complexities, the benefits they offer outweigh these drawbacks. Consider the specifications and requirements of your specific project when deciding whether armoured cables are the right choice for your electrical infrastructure needs.

Armoured cable, a robust and reliable electrical solution, provides enhanced protection against mechanical damage and environmental hazards. Its unique design makes it ideal for demanding applications that require durability and longevity. In this article, we will delve into the specifications of armoured cables and explore their pros and cons.

Construction

• Conductors: Armoured cables typically consist of one or more insulated electrical conductors, commonly copper or aluminum, which carry the electrical current.
• Insulation: The conductors are surrounded by a layer of insulation, usually made of PVC (Polyvinyl Chloride), XLPE (Cross-linked Polyethylene), or EPR (Ethylene Propylene Rubber).
• Armouring: The cable features a protective layer that provides mechanical strength. Armours can be metallic, such as steel or aluminum, or non-metallic, such as aramid fibers or reinforced plastics.
• Sheath: An outer layer, known as the sheath, encloses the conductors and armor, providing additional protection against moisture, UV radiation, and chemical exposure.

Application

• Outdoor Installations: Armoured cables are commonly used in outdoor settings, including underground installations, direct burial, and aerial applications.
• Industrial Settings: These cables are suitable for industrial environments where heavy machinery, vibrations, or other physical hazards are present.
• Harsh Environments: Armoured cables excel in areas with high humidity, moisture, or exposure to chemicals, making them popular in petrochemical plants, mines, and wastewater treatment facilities.

Pros of Armoured Cable

• Enhanced Protection: The armoured layer shields the cable from mechanical damage, such as impact, compression, and abrasion, extending its lifespan.
• Resistance to Environmental Hazards: Armoured cables are designed to withstand moisture, chemicals, UV radiation, and extreme temperatures, ensuring reliable performance in various conditions.
• Durability: The robust construction of armoured cables makes them highly durable, reducing the risk of downtime or frequent maintenance.
• Safety: The extra protection provided by armoured cables minimizes the chances of electrical faults, short circuits, and potential hazards.
• Versatility: Armoured cables are available in various configurations, allowing for customization to suit specific installation requirements.

Cons of Armoured Cable:

• Increased Cost: Armoured cables tend to be more expensive than non-armoured cables due to the additional materials and manufacturing processes involved.
• Rigidity: The armoured layer adds rigidity to the cable, making it less flexible compared to non-armoured cables. This may limit their suitability in certain applications where flexibility is crucial.
• Installation Complexity: The armoured layer requires specialized tools and techniques for installation, increasing the complexity of the installation process.