PLUS experts go to Patras for Deep Dive

Patras welcomes PLUS experts in Deep Dive

The City of Patras welcomed lighting experts from six PLUS partner cities to its Deep Dive on the 19th and 20th of September.

During two intense days, visiting experts interviewed the heads of the lighting and technical departments, the Vice Mayor of the city, engineers and technicians from the planning departments and environmental NGO representatives, amongst others.They also made field visits to the new lighting installations in the city squares as well the impressive Rion- Antirion bridge project.

The Rion-Antirion bridge

The Rion-Antirion bridge, crossing the Gulf of Corinth near Patras, is the world’s longest multi-span cable-stayed bridge. Designed by architect Berdj Milkaelian and implemented by Vinci, the 2 252 m bridge, considered a feat of engineering, required a lighting solution that could also withstand winds of over 200 km/h and strong seismic activity.

Designed by Roger Narboni, the concept underlying the decorative lighting of the bridge is that of a thin golden thread woven through four large blue-tinted needles. The bridge’s four pylons are thus lit with an intense blue light using 176 (44 per pylon) high pressure metal halide lamps (MASTER MHN-SAX830 ROD 1800W) with total installed power of 316.8 kW.

The bridge deck is lit in yellow with 592 metal halide lamps using plastic and ceramic technology (HQI-T 150W/830 and HCI-T 150 W/WDL) with total installed power of 88.8 kW. The functional lighting for the bridge’s four traffic lanes consists of 164 metal halide lamps (HCI-TW/WDL 250W) of 41W in total. All these light points are controlled using a SCADA (supervisory control and data acquisition) system.