Leaky Feeder Radio System
MTI supplied and supported over 32Km of leaky feeder cables and amplifiers that enabled underground personnel to keep in constant communication during the tunnelling phase of the project. MTI chose a Motorola IP Connect system to allow each base station to be joined together by fibre or 4G during the fit out of the project. The radio system was the primary voice communication system.
Fixed IP Telephones
IP Telephones were installed at 500m intervals within the tunnel to allow emergency communication from within the tunnel to the tally hut.
Environmental Monitoring System & SCADA
64 x Environmental Monitoring Stations – each containing O2/H2S/CO/CO2/CH4/NO2 & SO2 were supplied and maintained as part of the contract, each station was regularly maintained with six monthly interval calibration. A tally hut SCADA system was installed at four of the tunnelling sites to provide a graphical interface of the live tunnel gas readings.
Fixed IP Cameras
High definition cameras were installed at each crossing with recording facilities to ensure record and playback of any incidents.
