6mm Armoured Cable: The Comprehensive Guide

What is 6mm Armoured Cable?

6mm armoured cable is a type of electrical cable designed to protect electrical wires from physical damage. It is a flexible, corrugated steel tube that houses individual conductors, providing additional protection against impact, crushing, and moisture.

Applications of 6mm Armoured Cable

6mm armoured cable is commonly used in various applications, including:

• Industrial settings: Protecting electrical wiring in factories, warehouses, and workshops.
• Commercial buildings: Safeguarding power and communication cables in offices, retail stores, and public spaces.
• Residential properties: Providing extra protection for electrical circuits in homes and apartments.
• Outdoor installations: Shielding wiring from environmental hazards such as sunlight, rain, and rodents.

Benefits of 6mm Armoured Cable

Compared to standard electrical cables, 6mm armoured cable offers several advantages:

• Enhanced protection: The steel armour provides optimal protection against physical damage, reducing the risk of electrical fires and accidents.
• Durability: Armoured cables are designed to withstand harsh conditions, making them suitable for long-term use in demanding environments.
• Flexibility: The corrugated steel tube allows for easy bending and routing, facilitating installation in confined spaces or around obstacles.
• Corrosion resistance: Galvanized steel armour protects the cable from rust and corrosion, ensuring long-term performance.
• Moisture resistance: The tight construction of the armouring prevents water penetration, ensuring the integrity of the electrical conductors.

Types and Specifications of 6mm Armoured Cable

6mm armoured cables are available in various types and specifications to meet specific requirements:

Material:

• Galvanized steel: Most common and cost-effective option, providing corrosion resistance.
• Stainless steel: Higher corrosion resistance, suitable for highly corrosive environments.

Conductor Type:

• Copper: Excellent conductivity and durability.
• Aluminium: Lightweight and more economical.

Number of Cores:

• Single-core: One conductor for a single circuit.
• Multi-core: Multiple conductors for multiple circuits.

Armour Thickness:

• Light armour: Suitable for indoor or protected outdoor applications.
• Medium armour: Provides additional protection for harsh environments.
• Heavy armour: Designed for extreme conditions or underground installations.

Table 1: Specifications of 6mm Armoured Copper Cable

| Specification | Value |
|---|---|---|
| Conductor Material | Copper |
| Conductor Size | 6mm² |
| Conductor Type | Multi-stranded |
| Insulation Material | PVC |
| Insulation Thickness | 0.6mm |
| Armour Material | Galvanized steel |
| Armour Thickness | 0.5mm |
| Overall Diameter | 12.5mm |
| Weight per Meter | 0.35kg |

Table 2: Specifications of 6mm Armoured Aluminium Cable

| Specification | Value |
|---|---|---|
| Conductor Material | Aluminium |
| Conductor Size | 6mm² |
| Conductor Type | Single-stranded |
| Insulation Material | PVC |
| Insulation Thickness | 0.7mm |
| Armour Material | Stainless steel |
| Armour Thickness | 0.6mm |
| Overall Diameter | 13mm |
| Weight per Meter | 0.3kg |

Table 3: Current Carrying Capacity of 6mm Armoured Cable

| Ambient Temperature (°C) | Current Carrying Capacity (A) |
|---|---|---|
| 30 | 57 |
| 40 | 52 |
| 50 | 46 |
| 60 | 42 |
| 70 | 39 |

Installation and Maintenance of 6mm Armoured Cable

Installation:

• Follow the manufacturer's instructions for proper installation.
• Ensure the cable is properly supported and protected from physical damage.
• Use appropriate connectors and termination accessories.
• Test the cable for continuity and insulation resistance before energizing.

Maintenance:

• Regularly inspect the cable for damage or corrosion.
• Clean any dirt or debris from the armour to maintain its integrity.
• Avoid exposure to excessive heat or chemicals that could compromise the cable's performance.

Common Mistakes to Avoid with 6mm Armoured Cable

• Overloading: Do not exceed the current carrying capacity of the cable.
• Improper installation: Ensure the cable is securely supported and protected from damage.
• Using the wrong type of cable: Select the appropriate cable type based on the specific application and environmental conditions.
• Neglecting maintenance: Regular inspection and cleaning are essential for maintaining the cable's lifespan.
• Improper termination: Use appropriate connectors and follow termination procedures to ensure reliable connections.

Stories and Lessons Learned

Story 1: A factory suffered an electrical fire due to the failure of a non-armoured cable that was crushed by heavy machinery.

Lesson: Armoured cables provide essential protection against physical damage in industrial settings.

Story 2: A homeowner's outdoor lights stopped working after a severe storm. Inspection revealed that the electrical cable had been damaged by rodents.

Lesson: Armoured cables prevent damage from pests and other environmental hazards.

Story 3: A contractor installed an armoured cable in a high-moisture environment without properly sealing the connections. Water penetration caused the cable to fail.

Lesson: Ensure tight connections and proper sealing in moisture-prone areas.

Pros and Cons of 6mm Armoured Cable

Pros:

• Enhanced protection against physical damage
• Durability in harsh conditions
• Flexibility for easy routing
• Corrosion and moisture resistance

Cons:

• Higher cost compared to non-armoured cables
• Heavier and less flexible than some non-armoured cables
• Requires specialized installation tools

Call to Action

6mm armoured cable is a crucial component for protecting electrical wiring in various applications. By carefully considering the benefits, specifications, and best practices discussed in this article, you can ensure the safety, durability, and reliability of your electrical installations. For expert advice or to purchase 6mm armoured cable, consult with qualified electrical professionals or reputable suppliers.