Hornet Overhead Line (AAC) LSZH Cable

What is Hornet Overhead Line (AAC) LSZH Cable?

The Hornet Overhead Line (AAC) LSZH Cable is a specialized single-core insulated overhead aluminium conductor manufactured in accordance with BS 215 and British rail telecommunications specification NR/PS/TEL/31102 (BR1817). Featuring a 158mm² stranded all-aluminium conductor covered by a flame-retardant Low Smoke Zero Halogen (LSZH) protective sheath, it is specifically deployed along electrified railway networks to shield trackside communication and signaling circuits from induced electrical interference.

In high-voltage railway corridors, electromagnetic induction from overhead traction power feeds often disrupts sensitive telecommunication lines. The Hornet screening conductor mitigates these interference currents while ensuring optimal life-safety and asset protection; in the event of an electrical fault or flash fire, the halogen-free outer compound eliminates corrosive acid gases and toxic smoke emissions, preserving trackside equipment integrity and public transit safety.

Hornet Overhead Line (AAC) LSZH Cable Construction

• Conductor: 158mm² stranded All Aluminium Conductor (AAC) consisting of 19 concentrically stranded wires of 3.25mm diameter conforming to BS 215.
• Insulation / Sheath: Extruded Low Smoke Zero Halogen (LSZH) compound providing robust weather protection, mechanical durability, and fire safety.
• Bedding: Non-applicable (single-layer extrusion over stranded aluminium conductor).
• Screen / Armour: Unarmoured, functioning as an overhead screening conductor against external electrical interference.
• Outer Sheath: Heavy-duty, UV-resistant LSZH compound with a nominal radial thickness of 1.6mm.
• Core Identification: Single-core design available in distinct solid identification colours.
• Sheath Colour: Black, Red, Yellow, and Green.

Applications

Hornet Overhead Line (AAC) LSZH cables are engineered specifically for electrified railway corridors and overhead catenary systems where telecommunication and signaling circuits require isolation from electrical noise. Their low smoke, zero halogen formulation makes them suitable for open-air trackside pole routes, station approaches, and tunnel portal transitions.

• Railway Telecommunication Screening: Installed along overhead track infrastructure to intercept and ground inductive and conductive electrical interference.
• Trackside Catenary Corridors: Fixed overhead routing on catenary masts, gantry lines, and trackside pole lines.
• Station Approaches & Portals: Transit zones with high passenger density where zero halogen emission is strictly mandatory in the event of fire.
• Transport Infrastructure Power Screening: High-reliability screening circuits across light rail networks and mainline electrified traction lines.

Specifications & Dimensions

The Hornet Overhead Line (AAC) LSZH conductor is standardized with a nominal cross-sectional area of 158mm², composed of 19 strands of 3.25mm diameter aluminium wire, encased in a 1.6mm nominal thickness LSZH protective sheath yielding a compact nominal overall diameter of 19.45mm and a nominal weight of 629 kg/km. Operating reliably across a fixed temperature range of -30°C to +70°C with a minimum bending radius of 9 times the overall diameter, it exhibits a maximum DC conductor resistance of 0.1825 Ω/km at 20°C, fully aligned with BS 215 and NR/PS/TEL/31102 dimensional and electrical tolerances.

Standards

Design & Performance Standards: BS 215, NR/PS/TEL/31102 (BR1817)
Conductor Stranding: 19 / 3.25mm AAC per BS 215
Fire & Safety Performance: Low Smoke Zero Halogen (LSZH) compound
Temperature Spectrum: Fixed Operating Temperature: -30°C to +70°C
Bending Performance: Minimum Bending Radius: 9 × overall diameter
Regulatory Compliance: RoHS Directive 2015/65/EU, REACH Directive EC 1907/2006

Frequently Asked Questions

Q: What is the primary operational role of the Hornet Overhead AAC LSZH conductor in railway networks?
A: The conductor is specifically installed to screen railway telecommunication and data cables from electromagnetic and electrostatic interference generated by overhead AC traction lines and passing rolling stock.

Q: Why is an LSZH sheath applied over the All Aluminium Conductor (AAC)?
A: The LSZH covering protects the aluminium strands from atmospheric oxidation and corrosion while ensuring that no dense smoke or toxic acidic gases are released during a fire, safeguarding human life and trackside electronics.

Q: What does the stranding construction 19/3.25mm represent?
A: It indicates that the 158mm² conductor is built from 19 individual plain aluminium wires, each with a nominal diameter of 3.25mm, concentrically stranded together to deliver optimum mechanical tensile strength and electrical conductivity.

Q: What standard delivery lead times does Huadong Cable offer for railway project orders?
A: Standard manufacturing and dispatch schedules for international export orders typically range between 15 and 25 working days, with customized continuous drum lengths delivered on reinforced export wooden reels.

Hornet Cable – Why Choose Huadong?

Huadong Cable Group manufactures Hornet Overhead Line (AAC) LSZH cables in strict alignment with BS 215 and NR/PS/TEL/31102 requirements. Utilizing high-purity electrical grade aluminium wire rods, our automated wire-drawing and planetary stranding lines produce 19/3.25mm conductors with uniform lay schemes, ensuring stable tensile endurance and a maximum DC resistance of 0.1825 Ω/km at 20°C. Coated with an advanced 1.6mm UV-stabilized LSZH sheath in our continuous extrusion lines, our finished screening conductors deliver corrosion resilience and zero-halogen fire safety across demanding railway corridors.

With more than 20 years of precision overhead conductor and specialty cable manufacturing experience, Huadong Cable Group operates comprehensive in-house testing laboratories certified to ISO 9001 quality management systems. By ordering direct from our manufacturing facility, rail contractors and infrastructure authorities benefit from competitive factory pricing, 100% Mill Test Certificates (MTC) verifying mechanical and electrical parameters, customized continuous lengths packaged on ISPM 15 heat-treated export drums, and seamless global logistics support.