How to implement digital PA for a large underground metro rail tunnel?

Industry: smart city | Architecture: DIGITAL

Underground metro tunnels need PA for maintenance worker safety and emergency evacuation. Digital PA with IP65 tunnel speakers at 50m intervals throughout tunnel. Emergency broadcast from OCC on fire or evacuation. Integration with tunnel F&G system. NFPA 130 compliant PA installation. Backup power from UPS for tunnel PA section. High SPL in tunnel to overcome train noise.

Technical Details

Environment: underground metro rail tunnel NFPA
Constraints: NFPA 130 tunnel fire evacuation 50m spacing UPS
Requirement: tunnel NFPA 130 fire evacuation PA

Recommended Products

BNA-DX64, BNA-TUNNEL-SP, BNA-DA500

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