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LTA awards S$573m in contracts for upgrading works on North-South, East-West MRT lines

[SINGAPORE] Three contracts to upgrade and renew the power supply and track circuit systems on the North-South and East-West MRT lines (NSEWL) have been awarded for a combined $573 million, the Land Transport Authority (LTA) announced on Friday.

Japanese technology firm Meiden Singapore won two deals to upgrade and renew the power supply system on the two lines, worth a combined S$500 million.

The contract to replace the track circuit systems on the two lines was awarded to a consortium made up of German industrial giant Siemens and French firm Engie Services Singapore, for S$73 million.

Design and work on these two systems will begin this year. The projects expected to be completed by the early 2020s, the LTA said.

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Aimed at reducing the number of power-related faults, the new power supply system will be able to automatically switch the power supply source during an outage. It will also have real-time monitoring features and better fault prediction, detection and identification.

The capacity of traction substations and intake of power substations at three locations - Yasin, Bishan and Stamford - will also be increased.

"This will increase the NSEWL's power capacity and allow us to safely support more trains running on the line," said an LTA spokesman, adding the overall resilience of the power supply network will also improve.

The new track circuit system - working together with the new signalling system - will be able to detect the location of trains on the line and allow for quicker recovery after signalling system failures.

It will also be able to detect broken rails and have a condition monitoring system that can identify and fix potential track circuit failures.

We expect the new power supply and track circuit systems to significantly reduce the number of power and track circuit related faults, said LTA deputy chief executive for infrastructure and development Mr Chua Chong Kheng. He added that the authority is working closely with SMRT to ensure the projects are "implemented smoothly".

The LTA will award a tender for the replacement of 66 ageing trains on the North-South and East-West Lines in the coming months.

THE STRAITS TIMES

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