New images released by Crossrail reveal further tunnel fit-out progress as work continues under London to install the overhead catenary system.
A dedicated team of engineers is working around the clock to install the 2 x25kV overhead traction power system.
Each Elizabeth line train will draw power in the tunnels from the rigid overhead catenary system’s aluminium alloy conductor bar which houses copper contact wire. These bars are currently being installed in 10 metre sections.
The main power supply in the tunnels under central London will come from two new bulk supply points and their associated autotransformer feeder stations which are being built at each end of the new railway along with autotransformer sites in east and southeast London.
Over 1,500km of cable is being used to supply power, lighting and ventilation systems to the new railway.
Gallery - Powering Britain's newest railway
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The route will pass through 40 stations from Reading and Heathrow in the west, through new twin-bore 21 km tunnels to Shenfield and Abbey Wood in the east. The Transport for London (TfL) run railway will be named the Elizabeth line when services through central London open in December 2018. The Crossrail project is being delivered by Crossrail Limited, a wholly owned subsidiary of TfL, and is jointly sponsored by the Department for Transport and TfL.