Scenario Overview
Tunnels and utility corridors present multiple simultaneous challenges: confined spaces with high humidity, potential flooding, rodent activity, fire safety requirements, and limited access for maintenance.
Cable selection must address all these factors simultaneously: flame-retardant (FR) or low-smoke zero-halogen (LSZH) sheath for fire safety, anti-rodent armor for mechanical protection, and water-blocking construction for moisture resistance.
Multi-Hazard Protection
Tunnel cables must address fire, rodents, moisture, and mechanical damage simultaneously. No single-factor cable is sufficient — specify cables that meet all applicable requirements.
