When safety, durability, and performance matter most in an electrical setup, armoured cable becomes the preferred choice. These cables are engineered to perform in the most demanding environments—whether underground, in industrial facilities, or outdoor settings—where standard cables would fail.
At Dynamic Cables Limited, we specialize in manufacturing armoured power cables and armoured control cables that meet stringent national and international standards. In this blog, we’ll help you understand why armoured cables are used, how they are constructed, their types, applications, and the many benefits they offer.
What is an Armoured Cable?
An armoured cable is an electrical cable protected by an outer metallic layer, typically made of aluminium or steel, to guard against mechanical damage. This protective layer ensures the cable maintains performance integrity even in harsh conditions. In many cases, the armour also functions as a grounding path during short circuits, enhancing safety.
Unlike standard cables, armoured cables can be buried directly underground or installed in open industrial environments without additional protective coverings.
When Should You Use Armoured Cables?
Armoured cables are crucial wherever enhanced durability and protection are required. Typical use cases include:
-
Underground Installations: Protects against soil pressure, shifting rocks, and accidental digging.
-
Outdoor Wiring: Shields from UV radiation, rain, and rodents.
-
Industrial Environments: Withstands mechanical impacts and high operational stress.
-
Commercial Buildings: Reduces fire hazards, especially when paired with LSZH (Low Smoke Zero Halogen) sheathing.
Armoured vs Unarmoured Cables
The key difference lies in the presence of a metallic armour layer.
-
Unarmoured cables are typically used in protected areas like conduits or walls. They offer no external protection against impact or corrosion.
-
Armoured cables feature a reinforced metal layer, making them resistant to mechanical stress and electromagnetic interference.
While armoured cables may cost more upfront, their robust construction makes them a cost-effective investment over time due to reduced maintenance and higher safety.
Types of Cable Armouring: AWA vs SWA
Understanding the type of armour is vital to cable selection:
Aluminium Wire Armour (AWA)
-
Used in single-core cables.
-
Non-magnetic, making it suitable for AC systems to prevent overheating due to eddy currents.
Steel Wire Armour (SWA)
-
Ideal for multi-core cables.
-
Offers greater mechanical strength, commonly used in high-impact environments.
At Dynamic Cables Limited, we design both AWA and SWA cables, customized for your specific applications.
Construction of Armoured Cables
Each layer of the cable is designed with precision to ensure optimal performance:
-
Conductor: High-conductivity Class 2 stranded copper or aluminium.
-
Insulation: XLPE (Cross-linked Polyethylene) for high-temperature resistance and dielectric strength.
-
Bedding: Provides cushioning between the insulation and armour.
-
Armour: AWA or SWA depending on the cable type.
-
Outer Sheath: Made of PVC, PE, or LSZH, offering UV and termite resistance.
Dynamic Cables Limited enhances durability with added anti-termite additives and UV stabilizers in the sheath.
Applications of Armoured Cable
Our armoured control cables and armoured power cables are ideal for:
-
Underground Power Distribution
Withstands moisture, rodents, and impact without failure. -
Heavy-Duty Industrial Use
Ensures operational integrity amid vibrations, movement, and machinery. -
Power Supply Systems
Ideal for continuous power transmission in plants, factories, and substations. -
Control Panels & Automation Systems
Provides secure and interference-free signal transmission. -
Outdoor Installations
Endures fluctuating weather and temperature conditions.
Key Benefits of Using Armoured Cables
-
High Mechanical Strength
Designed to resist crushing, pulling, and impact forces. -
Thermal Stability
XLPE insulation ensures performance in high-temperature zones. -
EMI Protection
Reduces signal interference in control systems and automation. -
Extended Lifespan
Enhanced materials and build quality ensure long-term reliability. -
Versatility
Suitable for both indoor and outdoor installations. -
Long-Term Cost Efficiency
Though initially costlier, the reduced maintenance and increased safety offer better ROI.
How Much Does Armoured Cable Cost?
The price of armoured cable varies based on several factors:
-
Type of armouring: AWA or SWA
-
Number of cores and cross-sectional area
-
Insulation and sheath material
-
Length and voltage rating
-
Compliance standards and manufacturer
At Dynamic Cables Limited, we offer competitive pricing on a wide range of armoured cables without compromising on quality. Contact us for custom quotes or bulk order discounts.
What is Aluminium Armoured Cable?
Aluminium Armoured Cable is typically used in single-core applications, where reducing magnetic interference is essential. Its lightweight nature makes it easy to handle and install.
Advantages:
-
Lower eddy current losses
-
Reduced overall cable weight
-
Cost-effective for LV and MV systems
While not as strong as steel armour, it’s ideal for use in environments where flexibility and non-magnetic properties are required.
Why Choose Dynamic Cables Limited?
With over 37 years of manufacturing excellence, Dynamic Cables Limited is a trusted name in the Indian wire and cable industry. We offer:
-
Industry-certified armoured cable solutions
-
Tailored products for high-demand environments
-
ISO-certified manufacturing processes
-
In-house R&D and advanced testing facilities
From power transmission to automation control, our cables are engineered to perform in the most demanding scenarios.
Conclusion
Armoured cables are indispensable in modern electrical infrastructure, offering unmatched protection, durability, and reliability. Whether you're planning an underground power line, a factory installation, or a high-tech automation system, investing in armoured cable ensures long-term safety and performance.
Partner with Dynamic Cables Limited, one of the leading cable manufacturers in India, for world-class armoured cable solutions tailored to your needs.
FAQs
Q1: Why use armoured cable instead of regular cable?
A: Armoured cables provide mechanical and environmental protection, making them suitable for challenging conditions like underground or industrial settings.
Q2: Is aluminium armouring better than steel?
A: Aluminium armour is ideal for single-core cables to avoid magnetic interference. Steel armour offers greater mechanical strength and is preferred for multi-core cables.
Q3: Where are armoured control cables commonly used?
A: Widely used in power plants, automation lines, and manufacturing units for safe signal transmission.
Q4: What affects the price of armoured cables?
A: Factors include the type of armour, number of cores, material, length, voltage rating, and brand.
For more information or customized solutions, visit:
Dynamic Cables Limited