Flame-retardant and fire-resistant multimode optical fiber models

Key multimode optical fiber models with flame-retardant and fire-resistant properties include OM1, OM3, and OM4 fibers with LSZH sheaths, compliant with IEC 60331-25 and IEC 60332-2-3 standards.

Draka Fire

Tuf Series

The Draka FireTuf fiber optic cables are available in OM1, OM3, and OM4 multimode configurations, with 4, 8, 12, or 24 cores. They feature a central loose tube design and internal/external LSZH (Low Smoke Zero Halogen) sheaths, providing UV stability and flame retardance. The OM3 and OM4 variants incorporate MaxCap BendBright™ technology, which ensures performance under tight bends or pressure.

These cables are certified to IEC 60331-25 (fire resistance) and IEC 60332-2-3 (flame retardant), making them suitable for fire alarm systems, voice evacuation systems, tunnels, and public buildings where circuit integrity during fire is critical.

ETK Kablo Fire-

Resistant Fiber OpticsETK Kablo offers B2ca-classified fire-resistant multimode fibers that maintain optical signal integrity under extreme heat and flame. These cables are CPR B2ca and FE180 certified, ensuring low smoke emission, zero halogen content, and exceptional flame retardance. They are designed for tunnels, hospitals, airports, industrial plants, data centers, and railway networks, providing uninterrupted connectivity during emergencies.

The cables are mechanically durable, resistant to bending and environmental stress, and suitable for indoor/outdoor routes and tight bending installations.

Webro Fire-

Resistant Multimode Fibers

Webro provides OM3 and OM4 multimode fibers in 4 to 24 core configurations with a central loose tube design. These cables are tested for fire resistance (IEC 60331-25) and flame retardancy, ensuring continuous operation during fire emergencies. They are widely used in life safety systems, fire alarms, and voice evacuation networks, as well as in high-risk environments like metro systems and public buildings.

Additional High-

Performance Options

Other high-performance fire-resistant multimode fibers use jelly-filled loose tubes with mica tape wrapping around a central steel or FRP element. These designs enhance fire resistance, mechanical durability, and signal integrity. The outer sheaths are typically halogen-free and flame-retardant, protecting equipment from secondary damage during fire events.

Summary

For flame-retardant and fire-resistant multimode optical fibers, the most common models are: OM1, OM3, OM4 multimode fibersCore counts: 4, 8, 12, 24Construction: Central loose tube, bend-insensitive options availableSheath: LSZH, halogen-free, flame-retardantStandards compliance: IEC 60331-25 (fire resistance), IEC 60332-2-3 (flame retardant), CPR B2ca, FE180Applications: Fire alarms, voice evacuation systems, tunnels, metro lines, hospitals, industrial plants These models ensure continuous data transmission and circuit integrity during fire events, making them essential for critical infrastructure and life safety systems.