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• • • RAIL INDUSTRY • • •  


Flexible conduit helps increase rail capacity


 


F


lexible conduit from Flexicon has helped to deliver new substation enhancements as part of the power supply upgrade works to Network Rail’s Northern Line route, which will increase capacity by


up to 40 per cent.


EPS UK, as part of its Substation Alliance (SSA) joint venture, supplied and commissioned the switchgear and circuit breakers and fitted out the substation HV for the project, specifying and using hundreds of metres of Flexicon galvanised steel FU flexible conduit to protect the cabling. The project is part of the ‘Northern Hub and North-West Electrification programme’, which constitutes a series of upgrades to the railway in the north of England, between Liverpool and Manchester. The enhancements include new, high-voltage containerised substations, which will increase the capacity of power supplied to the railway, helping to modernise the route and prepare the line for up to 700 more trains to run each day.


Critical to the delivery of the new substation concept was the ability to protect vulnerable data cables that are used to switch circuits to relays. These control an auto-transformer that keeps voltage lines operating at 25 kVA to ensure sufficient power is maintained at all times so that train performance is not compromised.


Equally important was that the cable protection solution specified would be robust enough to protect from mechanical damage during assembly, transport, installation and commissioning. Brian Mckean, managing director of EPS and director of SSA adds: “Balancing the specialist nature of the application and the required IP rating and fire properties against tight budget requirements was challenging. We needed to select a flexible conduit that could offer proven durability and cable protection properties. “Flexicon’s FU galvanised steel conduit solution offered an ideal solution.


With its high mechanical strength, flexibility, IP40 rating and inherent low fire hazard properties it offered the perfect combination of strength and reliability. “The conduit was configured to 40 metre lengths to protect the cable assemblies, delivered to site prior to commissioning.” Flexicon has a range of Network Rail approvals with PADS numbers and is a RISQS and IRIS-approved manufacturer.


FLEXICON | flexicon.uk.com F electricalengineeringmagazine.co.uk ELECTRICAL ENGINEERING • MARCH 2021 11


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