What is Non Armoured Cable?

Unarmoured cables offer flexibility, cost-effectiveness, and ease of installation for applications that do not necessitate additional mechanical protection. They are widely used in residential, commercial, and light industrial settings where the risk of physical damage is minimal. However, it is essential to consider the installation environment and potential hazards when deciding whether unarmoured cables are the right choice for a particular project. By understanding their specifications and weighing the pros and cons, you can make an informed decision regarding the best cable solution for your electrical needs.

Unarmoured cables are versatile electrical cables designed for applications that don't require the additional protection of an armoured layer. They offer flexibility and ease of installation, making them suitable for a wide range of environments. In this article, we will explore the specifications of unarmoured cables and examine their pros and cons.

Specifications

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Construction

• Conductors: Unarmoured cables consist of one or more insulated electrical conductors, typically made of copper or aluminum, which carry the electrical current.
• Insulation: The conductors are surrounded by a layer of insulation, commonly composed of materials such as PVC (Polyvinyl Chloride), XLPE (Cross-linked Polyethylene), or EPR (Ethylene Propylene Rubber).
• Sheath: An outer protective layer, known as the sheath, encloses the conductors and insulation, providing resistance against moisture, chemicals, and other environmental factors.

Applications

• Indoor Installations: Unarmoured cables are commonly used in indoor settings where protection against mechanical damage is not a significant concern.
• Residential Wiring: These cables are often employed in residential buildings for electrical wiring applications, including power distribution and lighting.
• Commercial and Light Industrial: Unarmoured cables find usage in commercial buildings and light industrial environments where physical stress is minimal.

Pros of Unarmoured Cable

• Cost-Effective: Unarmoured cables are generally more affordable compared to their armoured counterparts, making them a cost-effective choice for applications that don't require additional protection.
• Flexibility: The absence of an armoured layer makes unarmoured cables more flexible, allowing for easier installation in confined spaces or areas with complex routing requirements.
• Lightweight: Unarmoured cables are lighter in weight, facilitating handling and reducing the strain on supporting structures during installation.
• Easy Installation: Unarmoured cables are simpler to install, requiring fewer specialized tools and techniques, which can save time and labor costs.
• Versatility: Unarmoured cables are available in various configurations and sizes, making them adaptable to a wide range of applications and electrical requirements.

Cons of Unarmoured Cable

• Reduced Mechanical Protection: Unarmoured cables lack the additional layer of protection provided by armouring, making them more susceptible to physical damage from impact, compression, or abrasion.
• Vulnerability to Environmental Factors: Without the added protection of an armoured layer, unarmoured cables may be more vulnerable to moisture, UV radiation, and chemicals, requiring careful consideration of the installation environment.
• Limited Application Range: Unarmoured cables are not suitable for installations where high mechanical protection is required or in environments with harsh conditions that could compromise cable integrity.