LONDON UNDERGROUND
LU selects suppliers for £250m power systems upgrade
David Hughes, director of major programmes sponsorship for London Underground, explains the need for flexible and experienced suppliers on the power systems upgrade project.
A
total of 17 suppliers have been selected for two eight-year power upgrade frameworks
as part of the £250m modernisation of London Underground’s (LU’s) power systems.
It is expected that the upgraded high voltage electrical systems will help support the extra services that are being introduced to meet rapidly growing passenger demand by providing smoother and more reliable journeys.
The frameworks cover the design, installation and commissioning of high voltage substations and 11kv and 22kv cable routing with a four- year break option.
David Hughes, director of major programmes sponsorship for LU, said: “We’ve embarked on the biggest programme of Tube modernisation ever seen. To do that we need to work with suppliers who can bring experience and flexibility to the task in hand, and who understand our vision to improve services for customers while providing a reliable service with as little disruption as possible.”
LU is finalising the completion of the power upgrade needed for the Sub-Surface Railway (Metropolitan, District, Hammersmith & City and Circle lines) – around 40% of the network. Planning is also under way to upgrade power supply systems on the Piccadilly line and other parts of the network.
Balfour Beatty Engineering Services Limited has been appointed to two new frameworks by LU, the first framework is for the provision and maintenance of high voltage cabling and the second will provide and maintain substations.
Mark Griffiths, Balfour Beatty managing director for power systems, said: “We are delighted to have been awarded these framework appointments and to have been recognised as first place contractor in seven out of the total nine framework lots awarded, putting us in prime place to bid for initial work.”
The full list of suppliers across the two frameworks is:
• ABB Limited • Alstom Transport UK Limited • Balfour Beatty Engineering Services Limited • C Spencer Limited • Clancy Docwra Limited • Data Techniques • Giffen Group Limited • High Voltage Maintenance Services Limited • Industrial Switchgear Services Limited • J Murphy & Sons Limited • MJ Quinn Integrated Services Limited • McNicholas Construction Services Limited • Thorntask Limited • TXM Group (Ombros Integrated Services) • UK Power Networks Services (Commercial) Limited
• URS Infrastructure & Environment UK Limited
• Vital Human Resources Limited & Electren UK Limited
W:
www.dkrewinds.co.uk FOR MORE INFORMATION
How to move a mountain 101 T
he London Underground, the world’s first metro system, opened in 1863 and
was originally operated using steam trains. In 1890 it was electrified and the first Tube trains powered by DC traction motors were introduced onto the London Underground network.
For over 25 years now DK Rewinds Ltd, a company specialising in the repair of electric motors based in Birmingham, has played a key role in the maintenance of the trains running on the London Underground.
DK provides world-class electrical repair services for traction motors, transformers, coils and traction armatures used on the London
102 | rail technology magazine Jun/Jul 14
Underground network. DK also provides London Underground with high-precision machined parts for bogies and provides an on-site axle corrosion skimming facility at the London Underground Acton facility.
In August 2012, DK was successful in winning the contract to rewind 600 traction armatures, fitting new commutators on the LT130 Traction motor. The LT130 Traction motor is a DC traction motor used to drive the trains via a gearbox on the Central Line Tube trains. DK completed the contract in the record time of 12 months.
This enabled the seamless renewal of armatures on the trains without any reduction of asset
One company in the Midlands is playing a key part in keeping the Central Line moving on the London Underground. Raj Bhogal, commercial director at DK Rewinds, explains.
performance on the network. Considering the amount of work involved, the depot and DK worked in complete harmony and got the job done.
DK has recently been awarded the contract to rewind a further 2,500 traction armatures, fitting new commutators. This will complete the whole fleet. What we are witnessing is an astounding feet of engineering: a complete fleet of trains re-armatured with new commutators and shafts with no reduction in passenger service – an outcome all stakeholders would want.
W:
www.dkrewinds.co.uk FOR MORE INFORMATION
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