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Electromechanical and control installations in the Yesa and Liédena tunnels (Navarra)

Túneles de Yesa y Liédena (Navarra)

Execution of electromechanical and safety and control installations for the Yesa and Liédena tunnels, forming part of the Pyrenees A-21 motorway (Navarra).

The electromechanical installations include:

  • Ventilation
  • Electrical power supply (medium and low voltage)
  • Lighting (of the tunnel and outside)
  • Extinguishing fires
  • Tunnel signage and traffic control system