Guide to Selecting 15mm SWA Armored Cable

In our daily lives, electricity is omnipresent—from the lights illuminating our gardens to the cables powering our small buildings. Behind the scenes, an unassuming black cable plays a crucial role: the 1.5mm SWA (Steel Wire Armored) cable. You may have seen it or even used it, but do you truly understand its capabilities?

As the name suggests, 1.5mm SWA armored cable features a conductor with a cross-sectional area of 1.5 square millimeters and a protective steel wire armor layer. This type of cable is commonly used for low-voltage power transmission, particularly in applications requiring additional mechanical protection.

Key Advantages of 1.5mm SWA Armored Cable:

• Superior Mechanical Protection: The steel wire armor acts as a robust shield against external impacts, crushing forces, and even rodent damage.
• Versatile Applications: Suitable for indoor, outdoor, and underground installations due to its durable construction and weather-resistant materials.
• Excellent Electrical Performance: High-quality conductors and insulation materials ensure stable power transmission and reliable operation.

When choosing a 1.5mm SWA armored cable, consider these critical parameters to ensure it meets your requirements:

Available in multiple configurations including 2-core, 3-core, 4-core, 5-core, 7-core, 12-core, and 19-core versions:

• 2-core: For simple single-phase power (e.g., garden lights, small water pumps)
• 3-core: Includes live (L), neutral (N), and earth (PE) wires for enhanced safety
• 4-core: Designed for three-phase power systems or single-phase circuits with control signals
• 5+ cores: Used in complex three-phase systems or multi-signal control applications

Standard rating of 0.6/1kV indicates suitability for voltages between 600V and 1000V. Always select cables with voltage ratings exceeding your application requirements.

Copper conductors are standard, offering superior conductivity and corrosion resistance. Conductors may be solid or stranded—the latter providing greater flexibility.

Common options include:

• XLPE (Cross-Linked Polyethylene): Higher temperature and voltage tolerance
• PVC (Polyvinyl Chloride): Cost-effective with good flexibility

Galvanized steel provides standard protection, while stainless steel offers enhanced corrosion resistance for harsh environments.

PVC sheathing (typically black) provides additional protection against moisture, chemicals, and UV exposure.

Standard operating range of -25°C to +90°C. Verify environmental conditions match cable specifications.

This versatile cable serves numerous applications:

• Garden and outdoor lighting systems
• Power supply for small outbuildings (sheds, garages)
• Security system components (CCTV cameras, alarms)
• Water pumps and irrigation systems
• Industrial equipment and control circuits

Proper installation ensures safety and reliability:

• Use compatible cable accessories (joints, terminations)
• Employ specialized stripping tools to avoid conductor damage
• Properly ground the armor layer for safety
• Maintain minimum bending radii during installation
• Secure cables appropriately using clamps or ties

For optimal value:

• Prioritize reputable manufacturers
• Verify relevant certifications (CCC, CE)
• Inspect for physical defects
• Confirm copper conductor material
• Compare prices from multiple suppliers
• Purchase through authorized channels
• Retain purchase documentation

Specialized tools enhance installation efficiency:

• SWA cable strippers
• Heavy-duty cable cutters
• Crimping tools for connectors
• Multimeters for electrical testing

The 1.5mm SWA armored cable represents a robust solution for low-voltage power transmission across diverse applications. By understanding its specifications, applications, and proper installation techniques, users can ensure safe and reliable electrical systems. Remember: electrical safety begins with proper cable selection and installation.

Important Note: Always de-energize circuits before electrical work, and consult qualified electricians for complex installations. Regular cable inspections help maintain system integrity.