"Luas Engineers have identified that the fault lies within a critical low-voltage safety system known as the 48-volt system. This is not the overhead power system that powers the trams. Rather, it is part of the safety network that links substations to the central control room and allows power to be safely controlled and monitored across the line. In simple terms, this safety system is designed to shut down power to the overhead lines in the event of an emergency."
"The system is currently detecting a fault condition and, for safety reasons, will not permit the power to be fully restored until that condition is resolved. As a result, services on the Green Line remain suspended while repair work continues. Multiple Luas technicians are working to identify the source of the fault and restore power. We apologise for any inconvenience caused."
Green Line Luas services were suspended yesterday evening during the rush hour commute, causing traffic chaos in Dublin city centre. Red Line Luas services are operating normally. Luas tickets are being accepted on Dublin Bus services while Green Line service is out. Luas Engineers identified the fault as within a critical low-voltage safety system known as the 48-volt system, which links substations to the central control room and allows power to be safely controlled and monitored across the line. The 48-volt system is not the overhead power system that powers trams but is designed to shut down power to overhead lines in emergencies. The system is detecting a fault condition and will not permit power to be fully restored until the condition is resolved. Multiple Luas technicians are working to identify the fault source and restore power, and an apology was issued for the inconvenience.
Read at Irish Independent
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