When it comes to electrical installations, the type of cable used can significantly impact performance, safety, and longevity. Among the various options available, armored cables stand out as a robust solution designed for demanding environments. But what exactly are armored cables, and how do they differ from their unarmored counterparts? In this blog, we’ll explore the key features, applications, and advantages of armored cables to help you make an informed decision for your projects.
What Are Armored Cables?
Armored cables are specially designed electrical cables that feature an additional protective layer, which shields them from mechanical damage, environmental hazards, and other external threats. This protective layer, often made from materials like steel, aluminum, or even non-metallic options such as fiberglass or polyethylene, acts as a durable barrier. The armor is typically ribbed or corrugated to maintain flexibility while offering resistance against cuts, abrasions, and crushing forces. Additionally, many armored cables include a waterproof compound to prevent moisture infiltration, ensuring reliable performance even in wet or humid conditions.
Key Differences Between Armored and Unarmored Cables
The most obvious distinction between armored and unarmored cables lies in their construction. While unarmored cables consist of basic insulation and a simple outer sheath, armored cables incorporate one or more protective layers beneath the outer jacket. This added armor not only enhances durability but also provides grounding continuity, which is crucial for safety in certain applications.
Another significant difference is the intended use environment. Unarmored cables are generally suited for controlled, low-risk settings such as indoor conduits, control systems, or protected areas where mechanical damage is unlikely. In contrast, armored cables are built for harsh conditions—including direct burial underground, outdoor installations, or areas exposed to potential impacts, rodent attacks, or extreme weather.
Cost is also a differentiating factor. Due to their complex structure and enhanced protection, armored cables tend to be more expensive than unarmored ones. However, this initial investment is often justified by their extended lifespan and reduced maintenance needs.
Why Choose Armored Cables?
There are several compelling reasons to opt for armored cables over unarmored ones, especially in challenging environments:
- Superior Mechanical Protection: The armor layer offers unparalleled resistance to physical damage, making these cables ideal for industrial sites, construction zones, or areas with heavy machinery.
- Rodent and Pest Resistance: In settings where rodents or other animals may chew through cables, the armor provides a critical line of defense.
- Environmental Resilience: With built-in moisture and chemical resistance, armored cables perform reliably in underground, underwater, or corrosive environments.
- Enhanced Safety: The metallic armor can serve as a grounding path, improving electrical safety and reducing the risk of faults.
Common Applications of Armored Cables
Armored cables are widely used in industries and scenarios where reliability is non-negotiable. Some typical applications include:
- Power transmission in industrial plants
- Outdoor and underground wiring systems
- Mining operations and oil refineries
- Marine and offshore installations
- High-risk environments with exposure to EMI/RFI interference
Conclusion
While unarmored cables remain a cost-effective solution for basic applications, armored cables offer the durability and protection needed for demanding conditions. By understanding the differences between these two cable types, you can select the right option for your specific environment and requirements.
At JZD Cable, we provide high-quality armored and unarmored cables tailored to meet diverse industrial and commercial needs. Explore our products to find the perfect solution for your next project.
