FR FIRE RESISTANT CABLE 3-Core x 1.5mm²

FR CABLE 3-Core x 1.5mm² Copper Conductor with Cu/Mica Tape LSZH/LSZH

• Standard Compliance: Conforms to BS 6004 and IEC 60502 standards.
• Voltage Rating: Rated for 450/750 volts applications.
• Cable Type: Copper conductor with LSZH insulation and sheath.
• Conductor Material: Plain annealed copper used for high conductivity.
• Conductor Construction: Contains 7 strands per core.
• Conductor Class: Class 2 – Stranded circular design.
• Single Wire Diameter: Each strand is 0.52 mm in diameter.
• D.C. Resistance: Maximum 12.100 Ohm/Km at 20°C.
• Insulation Material: LSZH (Low Smoke Zero Halogen) for safety in fire conditions.
• Insulation Thickness: 0.80 mm.
• Insulation Colours: Red, Blue, and Yellow.
• Overall Diameter of Insulated Core: Approximately 3.60 mm.
• Sheath Material: LSZH outer sheath for enhanced fire performance.
• Sheath Thickness: 1.60 mm.
• Sheath Colour: Black.
• Overall Sheath Diameter: Approximately 10.98 mm.
• Fire Resistance: Withstands fire for 3 hours at 750 volts.
• Mentioned Prices are in Meters.

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FR CABLE 3-Core × 1.5 mm² Cu/Mica Tape LSZH/LSZH

Introduction

In environments where fire safety cannot be compromised, installing the right cable makes all the difference. The FR CABLE 3-Core × 1.5 mm² combines superior electrical performance with unmatched fire resistance. Specifically engineered for fire detection loops, alarm circuits, and emergency lighting, this cable ensures continuous power delivery when seconds count. Moreover, its low-smoke, zero-halogen design helps maintain clear evacuation routes, reducing the risk of toxic fume exposure.

Conductor Design and Electrical Efficiency

We build each of the three cores from seven finely stranded annealed copper wires. Consequently, installers enjoy exceptional flexibility when routing the cable through tight conduits and tray bends. At the same time, the cable’s DC resistance stands at just 12.1 Ω/km (20 °C), so you experience minimal voltage drop even on long runs. In addition, this low resistance reduces heat buildup, thereby extending service life and improving overall system reliability.

Fire Shielding with Mica Tape

To guard against direct flame and extreme heat, we wrap every insulated core in a 0.12 mm layer of inorganic mica tape. This barrier withstands temperatures well beyond standard specifications, preserving conductor integrity for up to three hours under fire conditions. Consequently, critical circuits—such as your fire alarms and emergency lights—remain operational long after typical cables fail. Furthermore, the mica layer limits flame propagation along the cable’s sheath, bolstering protection for adjacent wiring.

Insulation and Sheath: Dual LSZH Protection

Core Insulation

First, we apply 0.80 mm of Low-Smoke, Zero-Halogen (LSZH) insulation around each conductor. Thanks to its robust chemical structure, LSZH material emits minimal toxic gases and dense smoke when exposed to fire. Therefore, occupants and first responders benefit from clearer air pathways and reduced inhalation hazards.

Outer Sheath

Next, we cover the entire cable assembly with a 1.60 mm LSZH outer sheath that resists abrasion, moisture, and ultraviolet radiation. Not only does this sheath enhance fire performance, but it also withstands the mechanical stresses of installation and operation. As a result, the cable stays durable in both indoor and outdoor applications, from corridor runs to rooftop trays.

Dimensions and Installation Considerations

Thanks to its flat, three-core configuration, this cable measures approximately 10.98 mm in overall diameter. Each insulated core spans around 3.60 mm, allowing effortless placement in slender conduits and confined ceiling voids. In practice, you can route multiple runs side-by-side without exceeding fill limits, saving both space and installation time. To further simplify logistics, we supply your exact footage on wooden drums—thereby eliminating excess waste and expediting project schedules.

Performance Ratings and Applications

Rated for 450/750 V, the FR CABLE 3-Core × 1.5 mm² accommodates both low- and medium-voltage safety circuits. Its combination of copper conductors, mica shielding, and dual LSZH layers ensures stable operation under continuous load, even when ambient temperatures spike. Consequently, you can specify this cable for fire-alarm loops, voice-evacuation systems, exit signage, and emergency lighting across commercial buildings, hospitals, schools, and transport hubs.

Compliance with International Standards

We manufacture this FR CABLE to satisfy—or exceed—both BS 6004 and IEC 60502 requirements. By adhering to these rigorous standards, we guarantee that each production batch undergoes strict electrical, mechanical, and fire-safety testing. Therefore, engineers and safety managers can specify this cable with complete regulatory confidence, knowing it meets global performance and safety benchmarks.

Conclusion

By integrating high-conductivity copper, robust mica fire shielding, and dual LSZH layers into a compact three-core design, the FR CABLE 3-Core × 1.5 mm² delivers reliable performance when it matters most. Its low-smoke, halogen-free materials support safer evacuations, while its mechanical toughness simplifies installation and upkeep. When you need a cable that balances everyday durability with extraordinary fire resilience, this cable answers the call.

Contact Us

For detailed technical specifications, competitive pricing, or assistance with your next fire-safety project, please contact our specialist team. We’ll help you determine optimal cable lengths, routing strategies, and termination methods—ensuring a seamless, code-compliant installation from start to finish.