Understanding the Diameter of Tech 2/3 Armored Cable

When working with electrical installations, selecting the appropriate type and size of cable is crucial for safety and efficiency. One common choice is the Tech 2/3 armored cable, often referred to as Steel Wire Armored (SWA) cable. This blog will explore the diameter of Tech 2/3 armored cable, its construction, and its applications.

What is Tech 2/3 Armored Cable?

Tech 2/3 armored cable is designed to provide excellent protection for electrical conductors against mechanical damage, moisture, and environmental factors. The armor typically consists of steel wires, which makes this cable suitable for underground installations, industrial environments, and areas where physical protection is required.

Diameter Specifications

The diameter of Tech 2/3 armored cable can vary depending on several factors, including:

1. Number of Conductors: The cable can come in multiple cores, commonly two or three. The more conductors included, the larger the diameter.
2. Cross-Sectional Area: The thickness of the individual conductors also affects the overall diameter. Common sizes include:
   • 1.5 mm²: Typically has a diameter of about 16 mm.
   • 2.5 mm²: Roughly 18 mm in diameter.
   • 4 mm²: Approximately 20 mm in diameter.
   • 6 mm² to 10 mm²: These sizes can range from 20 mm to 25 mm.

For example, a three-core 2.5 mm² armored cable might have a diameter around 18 mm, while a larger three-core 10 mm² cable could reach about 25 mm in diameter .

Factors Affecting Diameter

• Insulation Type: Different insulation materials (PVC, XLPE, etc.) may slightly alter the cable diameter.
• Armor Type: The thickness and type of armor can also influence the overall dimensions.

Applications

Tech 2/3 armored cables are widely used in various applications, such as:

• Underground Installations: Ideal for powering street lighting or outdoor lighting systems.
• Industrial Settings: Commonly used in factories and plants where mechanical protection is vital.
• Commercial Buildings: Often employed for electrical wiring in commercial infrastructures.

Conclusion

Choosing the right diameter for Tech 2/3 armored cable is essential for ensuring safety and compliance with electrical regulations. The diameter can vary based on conductor size and insulation type, typically ranging from 16 mm to 25 mm. For accurate specifications, always refer to the manufacturer’s datasheet.

Further Resources

For more detailed specifications and information on armored cables, consider checking the following resources:

• CABLES & WIRES (CABLE AND WIRE SIZES)
• Electrical Cable Diameter Chart

These resources provide comprehensive insights into various cable types, including their specifications and applications.