this contract concerns the adaptation of the ventilation / smoke extraction system of the Jfk back-station tunnel of Rennes Métropole metro line a: Installation of temporary smoke extraction duct, removal of the Kennedy ventilation / smoke extraction shaft and creation of a new well at the end of the rear stationquantitative detail: '2 Tunnel fans and accessories, 2 Isolation registers of a fan and roller shutter, including motors, cables, paths and sensors, 2 Fan drives 75 kW including braking cabinet and resistance, cables and paths, 1 Control Command including equipment, 2 Sound traps and slide system, 3 Tunnel sensors (anemometer, temperature and cables/paths), Metal assembly including pedestrian bridge, guardrails, grilles and rails fan maintenance

this contract concerns the adaptation of the ventilation / smoke extraction system of the Jfk back-station tunnel of Rennes Métropole metro line a: Installation of temporary smoke extraction duct, removal of the Kennedy ventilation / smoke extraction shaft and creation of a new well at the end of the rear stationquantitative detail: '2 Tunnel fans and accessories, 2 Isolation registers of a fan and roller shutter, including motors, cables, paths and sensors, 2 Fan drives 75 kW including braking cabinet and resistance, cables and paths, 1 Control Command including equipment, 2 Sound traps and slide system, 3 Tunnel sensors (anemometer, temperature and cables/paths), Metal assembly including pedestrian bridge, guardrails, grilles and rails fan maintenance