When working with industrial electrical systems, the proper selection of cables is crucial, especially when it comes to armored cables like the Tech 2/3 armored cable. These cables are widely used in environments that require durability, protection from mechanical damage, and resistance to harsh conditions. One of the critical aspects to consider when selecting such cables is the cable’s diameter, which can affect installation space, conduit sizing, and overall project planning.
Tech 2/3 Armored Cable Overview
Tech 2/3 armored cables, specifically the TECK90 variant, are designed for power distribution and control circuits in industrial and commercial installations. These cables are known for their rugged build, offering resistance to moisture, corrosion, and physical impacts. This makes them suitable for applications in environments such as mining, oil refineries, and hazardous locations where traditional cables might fail.
The “2/3” in Tech 2/3 refers to the number of conductors (2 conductors, 3 strands each), which is key to understanding the structure of the cable and its performance characteristics.
Diameter of Tech 2/3 Armored Cable
The diameter of a typical Tech 2/3 TECK90 armored cable is approximately 1.35 inches (34.3 mm). The diameter can slightly vary depending on the manufacturer and specific requirements of the installation, but this range provides a reliable figure for most TECK90 cables of this type. For instance, Nexans lists a 1.35-inch diameter for their TECK90 2/3 conductor cables (Nexans United States)(Belden).
Applications of TECK90 Armored Cables
- Industrial Sites: TECK90 cables are often used in industrial plants where cables need to withstand harsh mechanical environments and potential exposure to chemicals, oils, and water.
- Direct Burial: These cables can be installed directly underground without additional conduits, thanks to their sturdy armoring.
- Hazardous Locations: Ideal for areas classified as hazardous under NEC or CEC regulations, where fire hazards or explosion risks exist.
- Mining: These cables are used in underground mining operations to ensure power transmission without the risk of external damage.
Other Important Specifications
Besides diameter, here are additional key specs to keep in mind when selecting Tech 2/3 armored cables:
- Voltage Rating: TECK90 armored cables typically have a voltage rating of 1 kV (1000 volts), making them suitable for medium-voltage applications.
- Copper Conductor Size: Depending on the application, conductor sizes can vary, but typical configurations include 2 AWG to 12 AWG conductors.
- Insulation and Sheath: The cables feature cross-linked polyethylene (XLPE) insulation and a PVC outer sheath to provide additional protection.
Why is Diameter Important?
The diameter of a cable is crucial for several reasons:
- Conduit Sizing: The larger the cable diameter, the larger the conduit needed for installation.
- Space Constraints: In areas with limited space, knowing the cable’s diameter ensures proper installation and maintenance access.
- Heat Dissipation: Thicker cables can dissipate heat more efficiently, reducing the risk of overheating in high-load applications.
Conclusion
Understanding the diameter and other specifications of a Tech 2/3 armored cable is vital for safe and efficient installation in demanding environments. With a diameter of around 1.35 inches, these cables offer the durability and performance needed for industrial applications while meeting stringent safety standards. Proper selection ensures not only compliance with electrical codes but also long-term reliability in the field.
References:
- Nexans – TECK90 Armored Cable Datasheet
- Gescan – TECK90 2/3C Cable Specifications
- Belden – Industrial TECK90 Cable Information