Barrage de Lessoc – Haut-Intyamon

Type of building:
Hydroelectric dam
Group E SA
Route des Chenevières, 1669 Haut-Intyamon
Year (s) of the works:

Presentation of the building

The Lessoc dam in the canton of Fribourg was built between 1969 and 1973 and is one of the 200 large dams in Switzerland. . It was built on the river Sarine in Fribourg . It is 32.5 meters high and the length of its crest is 75 meters. Its retention basin can contain an approximate volume of 1,290,000 m3 of water. IIt is made entirely of concrete and has a hydroelectric power station in its interior. Currently, it is in the hands of the electricity supplier, Groupe E. In 2016, an emergency lighting installation was installed on the 8 internal levels of the dam.

Emergency lighting concept

The emergency lighting system is mainly based on the use of an energy cabinet located in the 4th basement. Stand-alone installations were also installed in places where the wiring was not suitable. About fifteen spotlights and ten lighting fixtures were installed Due to the humid conditions in such an infrastructure, all the luminaires are waterproof. In addition to the electrical installations, the beaconing was done with photoluminescent plates.

All our devices use LED technology This allows us to offer long life and low energy consumption installations, in line with the expectations of our time and especially the site and the desire to provide environmentally friendly products.

©Groupe E

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