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Model and Specifications of Fire-Aiding Optical Cables for Smart Buildings

Fiber optic adapter knowledge brief Published 22 Dec 2022

Prepared for preliminary research by the DANI ALONSO OPTICAL knowledge desk. Confirm connector interfaces, sleeve materials, polish, loss budgets and installation requirements against current standards and product documentation.

Fire-resistant optical fiber cables ensure critical data and communication systems remain operational during a fire, with models offering up to 24 fibers, LSZH sheathing, and compliance with IEC 60331-25 and other fire standards.Key Models and Specifications

1. Leviton Unitube Fire-Survival Cables

  • Fiber Count: Up to 24 fibers in a compact construction
  • Fire Rating: Compliant with IEC 60331-25 for circuit integrity during fire
  • Applications: Data centers, airports, railway stations, stadia, and industrial structures
  • Temperature Range: Specified for storage, installation, and operating conditions
  • Design Features: Compact, suitable for critical data transmission in fire-prone areas 2. Tratos FIRESAFE-OPTI® Cables
  • Construction: Multi or single-mode fibers, loose tube jelly-filled, mica glass fire barrier tape, aramid yarns, inner sheath, corrugated steel tape armor (CSTA), LSZH outer sheath
  • Fire Performance: Standard (30 min) or enhanced (120 min) survival under BS EN 50200
  • Operating Temperature: -10°C to +90°C
  • Applications: Fire detection, alarm systems, railway and highway tunnels, metro systems, public buildings
  • Standards Compliance: BS 5839-1, British and Euro Norms for fire resistance and circuit integrity 3. APAR Fireoproof Fiber Optic Cables
  • Customization: Available in various fire resistance ratings and constructions
  • Fire Resistance: Up to 180 minutes at 850°C, IEC compliant
  • Applications: Emergency systems, critical transport infrastructure, and other fire-sensitive installations
  • Standards Compliance: IEC 60793, IEC 60794, IEC 60331-25, IEC 60332, IEC 61034, IEC 60754, EN187000, Telcordia GR-20 4. Draka FireTuf Fire-Resistant Cables
  • Fiber Types: OM1, OM3, OM4 multimode; OS2 singlemode
  • Core Configurations: 4, 8, 12, or 24 fibers
  • Construction: Central loose tube, corrugated steel tape armor, internal/external LSZH sheath, bend-insensitive MaxCap BendBright™ technology
  • Fire Standards: IEC 60331-25 (circuit integrity), IEC 60332-2-3-24C (flame retardant)
  • Applications: Fire alarm systems, voice alarm systems, tunnels, metro lines, public buildings
  • Additional Features: UV stability, high-speed data transmission, long-distance signal integrity
Fire Ratings and Installation Considerations
  • Fire Ratings: Define cable behavior under fire, not transmission performance. Ratings ensure cables maintain circuit integrity and minimize smoke/toxic emissions in emergencies .
  • Materials: LSZH (Low Smoke Zero Halogen) sheaths reduce toxic fumes; mica glass tapes provide fire barriers.
  • Mechanical Protection: Corrugated steel tape armor (CSTA) or aramid yarns protect against physical damage and rodents.
  • Installation Factors: Tensile load, bending radius, pressure during service, and route selection are critical for maintaining fire performance.
  • Compliance: British Standards (BS), Euro Norms (EN), and IEC standards guide testing for survival time, circuit continuity, and fire resistance.
Summary

Fire-aiding optical cables for smart buildings are designed to maintain communication and control systems during fire events. They vary in fiber count, construction, armoring, and fire resistance, with models like Leviton Unitube, Tratos FIRESAFE-OPTI®, APAR Fireoproof, and Draka FireTuf offering robust solutions for critical infrastructure. Selection depends on application, required fire survival time, mechanical protection, and compliance with international fire standards. Proper installation ensures both network reliability and safety in emergency scenarios.

Model and Specifications of Fire-Aiding Optical Cables for Smart Buildings - DANI ALONSO OPTICAL CONNECTIVITY [PDF]

Model and Specifications of Fire-Aiding Optical Cables for Smart Buildings

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