3 Core SWA Armoured Power Cable – BS6724 | 0.6/1kV | LSZH Low Smoke Zero Halogen | IEC60502

Low Voltage Power Cables7
Description

Product Overview

BS6724 & IEC60502-1 Compliant 3 Core SWA/LSZH Armoured Power Cable (0.6/1kV)

This multi-core, steel wire armoured (SWA) power cable is engineered for critical applications demanding enhanced fire safety and robust mechanical protection. Manufactured in strict compliance with British Standard BS6724 and International Standard IEC 60502-1:2004, it delivers reliable power transmission in environments where fire hazards pose significant risks.

Key Features & Benefits:

  • Enhanced Fire Safety: LSZH (Low Smoke Zero Halogen) sheath minimizes toxic fumes and dense smoke emission during combustion, critical for confined/public spaces.

  • Robust Mechanical Protection: Steel Wire Armouring (SWA) provides crush resistance and rodent protection, enabling direct burial without additional conduit.

  • Dual Standard Compliance: Meets stringent requirements of both BS6724 (UK) and IEC 60502-1 (International).

  • Rated Voltage: 600/1000V (U₀/U) for versatile power network applications.

  • Multi-Core Design: Available in standard 3-core configurations for efficient power distribution.

Product Structure:

  1. Conductor: Plain annealed copper, stranded per required cross-section (1.5mm² to 400mm²).

  2. Insulation: Thermoplastic compound (XLPE or PVC based on specification), providing electrical integrity.

  3. Bedding: Applied over laid-up cores.

  4. Armour: Galvanized Steel Wire (GSW) providing mechanical protection (SWA type).

  5. Outer Sheath: LSZH (Low Smoke Zero Halogen) compound, offering flame retardancy and low toxicity/smoke emission.

Material Characteristics (LSZH Sheath):

  • Low Smoke Emission: Significantly reduces visibility obstruction during fire.

  • Zero Halogen: Eliminates corrosive/toxic acidic gases (like HCI) when exposed to flame.

  • Flame Retardant: Self-extinguishing properties limit flame propagation.

Applications:

Ideal for power networks where personnel safety and equipment integrity are paramount:

  • High-Risk Public Areas: Underground railways (metros), tunnels, hospitals, schools, airports, shopping malls.

  • Industrial Plants: Chemical facilities, power stations, offshore platforms.

  • Infrastructure Projects: Direct burial in ground for street lighting, distribution networks, renewable energy plants.

  • Confined Spaces: Ships, submarines, high-rise buildings, cable ducts where ventilation is poor.

Technical Specifications (BS6724 / IEC60502-1 0.6/1kV):

Nominal Cross Section (mm²) Conductor Diameter (mm) (Approx.) Insulation Thickness (mm) Sheath Thickness (mm) Overall Diameter (mm) (Approx.)
3x1.5 1.4 0.7 1.8 9.6
3x2.5 1.8 0.7 1.8 10.5
3x4 2.3 0.7 1.8 11.6
3x6 2.8 0.7 1.8 12.6
3x10 3.6 0.7 1.8 14.4
3x16 4.5 0.7 1.8 16.3
3x25 5.6 0.9 1.8 19.5
3x35 6.7 0.9 1.8 21.9
3x50 8.0 1.0 1.8 25.1
3x70 9.4 1.1 1.9 28.7
3x95 11.0 1.1 2.0 32.4
3x120 12.4 1.2 2.1 36.1
3x150 13.8 1.4 2.3 40.3
3x185 15.3 1.6 2.4 44.6
3x240 17.5 1.7 2.6 50.2
3x300 19.5 1.8 2.7 55.2
3x400 22.6 2.0 3.0 63.3

(Conductor: Copper. Armour: Steel Wire (SWA). Sheath: LSZH)

Standards & Certifications:

  • Primary Standards: BS6724, IEC 60502-1:2004

  • Voltage Rating: 0.6/1 kV (U₀/U)

  • Fire Performance: LSZH Sheath complies with low smoke & toxicity requirements.

  • Quality Assurance: Manufactured under ISO 9001 certified processes.

  • Conformity: CE Marked.

Engineering & Selection:

This cable is the optimal choice for engineers specifying power distribution requiring enhanced fire safety (LSZH), mechanical durability (SWA for direct burial), and compliance with major international (IEC) and UK-specific (BS) standards. The comprehensive size range ensures suitability for diverse load requirements.