Prolights carries out the new lighting of Gouffre de Poudrey

For the new infrastructure, which replaces the previous halogen lamp system, have been used 150 devices Prolights: 90 ArcPar 7, 48 ArcPar 18 y 12 barras Led ArcShine 6.

Prolights has illuminated the Poudrey chasm, a place located in the Franche-Comté region, in eastern France. It is an underground cave system that attracts a considerable number of visitors every year.. Its formation is the result of the erosion of the water of the Loue River, that for millions of years cut through the layers of karst limestone rock, creating impressive underground formations.

The design and installation of the new lighting scenery was entrusted to the company TSE. A project with a large number of technical challenges: The main underground chamber of the Poudrey Abyss measures 130 meters wide, 100 long and 40 high, In addition, it is accessed through a channel 27 meters long and its walls are adorned with stalactites and stalagmites that reach 7 meters high.

Joannès Poet, development manager of the integration department, TSE museography and architectural lighting, leaned on ESL, Prolights distributor in France, and in particular in its Integration Support service to choose the teams that responded to the different challenges of the project, among them being resistant to the extreme conditions of the underground environment.

The choice fell on 150 Prolights devices, between them 90 ArcPar 7, 48 ArcPar 18 y 12 barras Led ArcShine 6, with the aim of replacing the previous halogen lamp system.

“The objective was to reduce the current needs of 125 A a 32 A per phase. On-site testing has shown that, from the moment of ignition, los 150 devices do not exceed 5,2 kW consumption per phase, a result 7,4 times lower than the previous installation. We choose LED not only for electrical consumption, but also for the wide range of color possibilities, as well as dynamic color effects that halogen does not offer”, explains the TSE team.

Thanks to the energy efficiency of Prolights products, The TSE team has been able to illuminate one hundred percent of the quarry, in front of 70% that illuminated the previous system.