Customised solution Lighting for safety in the access gallery

Sep 27, 2018

Tunnel lighting in the Nant de Drance pumped-storage power station

The engineering marvel with GIFAS lighting

Initial situation

The access gallery for the tunnel pumped-storage power station in the canton of Valais required adequate illumination. The 6 km long gallery was provided with 300 lights, with every fourth light also serving as an emergency light. The 24 flat cable harnesses with a length of 250 m were equipped with 20 lights each. The lights were mounted on a kerb with a height of approximately 1 m. The StreamLED has a high protection class (IP68 / 69 K), and its compact design means that it can be installed quickly and easily. The gallery is now illuminated as requested, thereby ensuring that it is safe to access.

General information

  • Customer / installation engineer: CFF Le Chatelard
  • Requirement: Access gallery lighting
  • Solution: StreamLED with cable and current collector on flat cable
  • Quantity: 300

Customer benefits

  • easy and quick installation
  • the glare is reduced to the minimum by turning the pipe.
  • less power consumption at very high utilization ratio
  • immediate full luminous flux
  • minimal temperatures progression
  • Insensible against pusting and vibrations

Areas of application

  • tunnels
  • access gallery
  • power stations
  • sewage treatment plants


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