Tunnel – Fréjus, France – Lighting – construction phase

Lighting Tunnels
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Project feautures

  • TOTAL POWER: 500 kVA
  • TRANSPORT VOLTAGE: 5500 V
  • NETWORK DISTANCE: 12 KM
  • LOCATION: Bardonnèche, France
  • YEAR: 2011

PROJECT OBJECTIVES

Supply lighting to the SNCF tunnel at Fréjus; a length of 7000m with two 58W lamps every 10 meters.

Voltage available: 400 V at the beginning of installation.

CUSTOMER NEEDS

Assure a minimum lighting in case of default in one of the transformers.

CUSTOMER NAME 

RAZEL-BEC

OUR SOLUTIONS IMPLEMENTED

  • NETWORK CREATED WITH 3X25 MM² AND 3X10 MM² CABLE.
  • USING A CONTINUOUSLY POWERED NETWORK, THE LIGHTING WILL ALWAYS TURN ON.

MATERIAL USED

Step-up transformer station
Step-down transformer

CUSTOMER BENEFITS

USE OF A CONTINUOUSLY POWERED NETWORK

LOW VOLTAGE DROP

WATERTHIGHT TRANSFORMER IP68