January 2019. CO, NO2, O2 and CO2 gas detection, opacimeters, temperature and humidity sensors.
These tunnels are located in Otero de Sanabria (Municipality of Palacios de Sanabria). This infrastructure is essential in the high-speed railroad that connects Madrid with Galicia (North-Northwest Corridor, Madrid-Galicia High-Speed Line).
This tunnel is in the section that links Zamora to Pedralba de la Pradería, and runs parallel to the A-52 motorway, 110 km route is designed to operate at a speed up to 350 km / h. In addition to this tunnel, the route includes 14 viaducts, a new station in Sanabria (Otero de Sanabria) and a gauge changer in Pedralba de la Pradería.
Zamora will be 10 minutes closer to Madrid and 55 minutes to Galicia.
For the gas detection systems of this tunnel, carbon dioxide gas detection is carried out by DIREX detectors, and DURTOX detectors have been selected for the detection of CO, NO2 and O2; all manufactured by DURÁN ELECTRÓNICA. Air quality control is carried out with opacimeters distributed by DURÁN ELECTRÓNICA.