Asl 2.5mm Single Cable Red [Roll]

Asl 2.5mm Single Cable Red [Roll]: Dedicated Live Conductor

Single-core cables are fundamental building blocks in electrical installation, used extensively for live and phase connections within buildings, control panels, and equipment . This 2.5mm² single cable, supplied on a convenient 90-metre roll, features a stranded copper conductor insulated with high-quality red PVC, specifically intended for live and phase conductor applications where reliable performance is essential.

The 2.5mm² conductor size is one of the most commonly used for power circuits and general wiring, offering an excellent balance of current capacity and flexibility . The roll format is ideal for professional electricians and contractors who require bulk quantities for multiple installations.

Asl 2.5mm Single Cable Red [Roll]: Key Specifications

Asl 2.5mm Single Cable Red [Roll]: Conductor Construction

The conductor is manufactured from plain annealed copper, chosen for its excellent electrical conductivity and ductility, with 100% pure copper conductors ensuring optimal performance . The stranded construction consists of multiple fine copper wires twisted together, typically 7 strands of 0.67mm diameter for Class 2 stranded conductors, though flexible versions with 50 strands are also available .

This stranding offers several advantages:

• Flexibility: Easier to bend and route through conduit and trunking compared to solid conductors

• Vibration Resistance: Less prone to work-hardening and breaking in applications subject to movement

• Termination: Provides better contact area in screw terminals

• Handling: Easier to strip and prepare for connection

• Quality: Made with high-purity copper conductor for optimal performance

Asl 2.5mm Single Cable Red [Roll]: PVC Insulation

The red PVC insulation serves multiple critical functions :

Electrical Insulation: Provides excellent dielectric strength, preventing electrical leakage and ensuring safe containment of the live conductor. The maximum DC resistance at 20°C is approximately 7.41 Ohm/km .

Mechanical Protection: Protects the copper conductor from abrasion, impact, and damage during installation and service .

Colour Identification: The red insulation provides clear visual identification as a live or phase conductor. In traditional UK wiring colour schemes, red indicates live connections .

Temperature Rating: Rated for continuous operation up to 70°C, suitable for normal operating conditions in buildings .

Flame Retardant: PVC insulation is flame retardant, meeting safety standards for electrical installations .

Asl 2.5mm Single Cable Red [Roll]: Current Ratings

The current-carrying capacity of 2.5mm² cable depends on installation method :

These ratings are typical for two loaded conductors at 30°C ambient temperature and may vary based on grouping with other cables and specific installation conditions . Reference should be made to the current edition of wiring regulations for final sizing.

Asl 2.5mm Single Cable Red [Roll]: Applications

This versatile single-core cable is suitable for numerous live and phase conductor applications :

Power Circuits: Used for radial power circuits and final sub-circuits supplying socket outlets and fixed equipment .

Lighting Circuits: Suitable for live feeds and switch drops between ceiling roses and wall switches .

Conduit Wiring: Ideal for drawing into conduit systems in commercial and industrial installations where multiple circuits run in shared containment .

Trunking Systems: Suitable for installation in PVC or metal trunking for distribution wiring in commercial buildings .

Control Panels: Used for internal wiring of control panels, distribution boards, and electrical enclosures where live connections are needed .

Phase Identification: Can be used to identify specific phases in three-phase installations where colour coding is required.

Switch Wiring: Provides live connections between switches, outlets, and accessories throughout the installation .

Domestic and Industrial Wiring: Suitable for general fixed, protected installations in lighting fittings, appliances, switchgear, and control gear .

Asl 2.5mm Single Cable Red [Roll]: Colour Coding

The red insulation colour is traditionally used for live and phase conductors in fixed wiring. In three-phase systems, red may be used to identify one of the phases. Using correctly identified cables is essential for :

Safety: Ensures that anyone working on the installation can immediately identify live conductors, reducing the risk of electric shock.

Compliance: Wiring regulations require conductors to be identified by appropriate colours for their function.

Testing and Inspection: Makes testing and verification of circuits straightforward and reliable.

Maintenance: Facilitates future modifications and fault-finding by providing clear visual identification.

Note: In modern harmonised wiring, brown is now the standard colour for live conductors, while red may still be encountered in existing installations and certain specialist applications.

Asl 2.5mm Single Cable Red [Roll]: Why Choose the Roll Format?

Purchasing this cable on a 90-metre roll offers several advantages for professional users :

Cost-Effective: Bulk purchasing provides better value per metre compared to cut lengths, reducing overall project costs.

Always Available: Having a full roll on hand means you’re never caught short on a job site. Perfect for contractors and regular users.

Project Versatility: Suitable for multiple jobs, from small domestic works to larger commercial installations.

Professional Standard: The roll format is the professional’s choice, ensuring you have adequate cable for unexpected requirements.

Reduced Waste: Buy in bulk and use as needed, with the remainder available for future projects.

Asl 2.5mm Single Cable Red [Roll]: Installation Considerations

Conduit and Trunking: This cable is designed for installation within conduit, trunking, or other approved containment systems that provide mechanical protection . These cables are intended for drawing into trunking and conduit .

Voltage Considerations: When installed in an earthed metal enclosure, cables are suitable for voltages up to 1000V AC or up to 750V to earth DC . The standard voltage rating is 450/750V .

Bending Radius: The minimum bending radius should be observed to prevent damage to the conductor or insulation. Typically 3-4 times the cable diameter for fixed installations .

Stripping: Use appropriate cable stripping tools to remove insulation without nicking or damaging the copper conductor strands.

Termination: Ensure conductors are correctly terminated in suitable terminals, with no stray strands exposed. The correct torque should be applied for the terminal type.

Derating: When multiple cables are bunched together, derating factors apply to the current-carrying capacity. Consult wiring regulations for guidance .

Temperature Range: Suitable for fixed installation from -5°C to +70°C operating temperature .

Asl 2.5mm Single Cable Red [Roll]: Quality and Compliance

This cable is manufactured to meet rigorous international standards :

• BS 6004: British Standard for PVC-insulated cables for electric power and lighting

• KS 453.2: Complies with applicable national standards

• HD 21 / EN 50525-2-31: Harmonised European standard for PVC-insulated cables

• CE Marking: Indicates compliance with relevant European directives

• RoHS Compliance: Free from hazardous substances

• Flame Retardant: Meets relevant standards for fire performance

• BASEC Approved: Premium versions may carry BASEC approval

Asl 2.5mm Single Cable Red [Roll]: Storage and Handling

Store the cable in a clean, dry environment away from direct sunlight and chemicals that could degrade the PVC insulation. The roll format should be stored upright or flat to prevent distortion. When paying out cable, ensure it is not kinked or twisted, which could damage the insulation or conductor .

For electrical contractors, having a roll of 2.5mm red single core cable on the van ensures you’re prepared for:

• Rewiring projects requiring multiple live connections

• Power circuit installations in residential and commercial properties

• Control panel manufacturing and repairs

• Extension of existing circuits

• General maintenance and fault repairs

• New build installations where single cores are specified

When installed correctly within appropriate containment and in accordance with current wiring regulations, Asl 2.5mm Single Cable Red, supplied on a convenient 90-metre roll, provides a safe, reliable, and versatile solution for live and phase conductors in residential, commercial, and industrial applications. The roll format offers excellent value and convenience for professional users .