Critical Tunnel Communication
New South Wales
Supporting Fire-Resilient Communication Systems for Tunnel Infrastructure
Overview
A tunnel communication deployment in New South Wales required a fibre solution capable of maintaining communication under fire conditions, supporting critical systems including emergency response, monitoring, and control.
Tunnel environments impose strict requirements on fire performance, smoke emission, and installation integrity, where cable design and termination quality directly influence system reliability.
Approach & Outcome
Supplied through a national distribution partner, fire-resistant tight buffer cables were selected for their ability to maintain circuit integrity under high-temperature exposure, combined with factory-terminated assemblies to ensure consistent end-to-end performance and simplify installation.
The solution incorporated:
Fire-resistant tight buffer cables rated for up to 120 minutes circuit integrity under fire conditions (IEC 60331-25)
Dual LSZH sheath construction ensuring low smoke and zero halogen emission in enclosed environments
Thermal barrier tape with aramid and glass yarn reinforcement for structural stability under heat exposure
Factory-terminated assemblies ensuring consistent optical performance and reliable installation
Compact tight-buffer construction enabling efficient routing and termination within constrained tunnel environments
The approach ensured dependable communication links aligned to fire safety requirements, supporting critical systems within tunnel infrastructure.
Explore the components used in this deployment
Fire-Resistant Cables
Fire-rated designs maintaining circuit integrity for tunnels and critical infrastructure networks