Asl 4mm Single Cable Green

Description

Asl 4mm Single Cable Green: Heavy-Duty Earthing Conductor

Single-core cables are fundamental building blocks in electrical installation, used extensively for earthing and bonding connections within buildings, distribution boards, and heavy equipment. This 4.0mm² single cable features a stranded copper conductor insulated with high-quality green PVC, specifically intended for protective earth and main bonding applications where substantial conductor size is essential .

The 4.0mm² conductor size offers significant current-carrying capacity for earth fault currents, making this cable suitable for main earthing conductors, bonding connections to incoming services, and high-current protective conductors . The cable is intended for use in semi-flush exposed conduits and embedded conduits as well as in closed installation ducts, and is ideal for the internal wiring of appliances and apparatus .

Asl 4mm Single Cable Green: Key Specifications

Asl 4mm Single Cable Green: Conductor Construction

The conductor is manufactured from plain annealed copper, chosen for its excellent electrical conductivity and ductility. For a 4.0mm² cable, the stranded construction consists of 7 strands of 0.85mm diameter wire for Class 2 stranded conductors .

This stranding offers several advantages for larger conductor sizes:

• Flexibility: Even with the substantial cross-section, stranded construction provides manageable flexibility for installation around corners and into termination points

• Handling: Easier to route and terminate than solid conductors of equivalent size

• Termination: Provides excellent contact area in heavy-duty terminals, earth clamps, and crimped lugs

• Reliability: Stranded construction resists work-hardening and fatigue in fixed installations

Asl 4mm Single Cable Green: PVC Insulation

The green PVC insulation for this heavy-duty cable serves multiple critical functions:

Electrical Insulation: Provides excellent dielectric strength, preventing electrical leakage and ensuring safe isolation of the protective conductor where required. The maximum DC resistance is 4.61 Ohm/km at 20°C .

Mechanical Protection: The substantial insulation thickness protects the copper conductor from abrasion, impact, and damage during installation and service .

Colour Identification: The green insulation provides clear visual identification as a dedicated protective earth conductor. Green/yellow is standard for earth bonding applications .

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 IEC 60332-1-2 standards for fire performance .

Halogen-Free Options: Alternative halogen-free versions (H07Z-R) are available for applications where fire safety is a priority, such as hospitals, schools, and high-rise buildings .

Asl 4mm Single Cable Green: Current Ratings

The current-carrying capacity of 4.0mm² cable is rated at 42 Amps . For earthing applications, the conductor must be capable of carrying fault current:

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

Asl 4mm Single Cable Green: Applications

This heavy-duty single-core cable is specifically suitable for critical earthing applications :

Main Earthing Conductor: Used to connect the installation’s main earth terminal to the earth electrode, whether that’s earth rods, buried tape, or foundation earth electrodes.

Main Equipotential Bonding: Provides bonding connections to incoming metallic services including:

• Water supply pipes

• Gas supply pipes

• Oil supply pipes

• Structural steelwork

• Lightning protection systems

Supplementary Bonding: Used in locations requiring additional protection, such as bathrooms, swimming pools, and agricultural buildings.

Protective Conductors: For high-current circuits where the protective conductor must be sized to match the live conductors.

Power and Lighting Circuits: Suitable for power or lighting circuits and building wiring .

Internal Wiring: Ideal for the internal wiring of appliances and apparatus, as well as switchgear and control gear .

Industrial Installations: Earthing connections for machinery, switchgear, and distribution boards in factories and plants.

Generator and UPS Earth Connections: Provides earthing for backup power systems and uninterruptible power supplies.

Asl 4mm Single Cable Green: Installation Considerations

Conduit and Trunking: This cable is designed for installation within conduit, trunking, or other approved containment systems that provide mechanical protection. It is intended for use in semi-flush exposed conduits and embedded conduits as well as in closed installation ducts .

Termination: Due to the large conductor size, appropriate termination methods are essential. Use suitable earth clamps for pipe bonding, crimped lugs for connection to earth bars, or mechanical connectors designed for 4.0mm² conductors.

Bending Radius: The minimum bending radius should be observed to prevent damage to the conductor or insulation. Typically 3-4 times the cable diameter (approximately 12-16mm) .

Stripping: Use appropriate cable stripping tools designed for larger conductors to remove insulation without nicking or damaging the copper strands.

Protection: Where liable to mechanical damage, earthing conductors should be protected by conduit or trunking.

Identification: Ensure green insulation is used only for earthing purposes. Green/yellow striped cable is standard for protective conductors .

Asl 4mm Single Cable Green: Voltage Rating

The 450/750V voltage rating indicates:

• 450V: Voltage to earth (phase to neutral/earth)

• 750V: Voltage between phases

This makes the cable suitable for standard single-phase and three-phase installations up to 750V, covering all normal domestic and commercial applications .

Asl 4mm Single Cable Green: 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

• BS EN 50525-2-31: European standard for PVC-insulated cables

• BASEC Approved: Premium versions carry BASEC approval for assured quality

• CE Marking: Indicates compliance with relevant European directives

• RoHS Compliance: Free from hazardous substances

• ISO 9001: Quality management systems ensure consistent manufacturing standards

• Flame Retardant: Meets IEC 60332-1-2 standards

Asl 4mm Single Cable Green: Availability

This cable is typically available in various formats:

• Per metre: Cut to your exact requirements for smaller projects

• 50m reels: For medium-sized installations

• 100m reels: Standard drum size for contractors and regular users

When ordering cut lengths per metre, you will receive one continuous piece of cable, not multiple sections.

Asl 4mm Single Cable Green: Storage and Handling

Store the cable in a clean, dry environment away from direct sunlight and chemicals that could degrade the PVC insulation. Reels 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.

The cable is suitable for indoor use in dry environments and has an operating temperature range of -15°C to +70°C .

When installed correctly within appropriate containment and in accordance with current wiring regulations, Asl 4mm Single Cable Green provides a safe, reliable, and clearly identified earthing solution for critical protective bonding and high-current earthing applications in residential, commercial, and industrial settings.