LONDON UNDERGROUND
Control systems for power distribution T
here are ever more demands being placed on the old Victorian
London Underground system with more people than ever, from tourists to people who work in the capital, using the Tube.
In 2009, for the third year running, passenger figures were more than a billion and this is set to grow substantially particularly in 2012, London’s Olympic year.
This, of course, not only means more trains, but also facilities to enable customers to travel in comfort. Consequently, new rolling stock is being delivered complete with air conditioning to provide a more comfortable environment for those using the London Underground.
Additionally, better tunnel and
platform ventilation is being considered to further facilitate this.
As passenger numbers increase, the need for longer and more frequent train services becomes self-evident, hence more and more sophisticated track side equipment is required to keep the underground running efficiently and safely.
All this improvement sets a trend for electricity demand to increase proportionately over the short to mid-term.
London Underground has as a result set about upgrading all services that it supplies with the help of many leading utility specialists and product suppliers.
One such supplier (ABB) Vitreous enamel signage
of a revival over the past few years as an increasing number of customers are realising the exceptional durability that this medium offers.
V
A.J Wells specialise in vitreous enamel and have recently completed the site surveying & manufacture of new enamelled signage and illuminated super- graphics for London Overground. This is in addition to numerous national rail networks including Southern and Southeastern and ongoing contracts with Transport for London.
A vitreous enamel surface finish FOR MORE INFORMATION
A.J Wells T: 01983 537 766 E:
enamel@ajwells.co.uk W:
www.ajwells.com
Oct/Nov 10 rtm27
itreous enamel signage and station cladding has seen something
is achieved by fusing glass particles to sheet metal by firing it at a temperature in excess of 800°C. This results in a surface that is incredibly hardwearing to all the elements, lasting at least four times as long as powder- coated signage.
Enamel signage requires very little maintenance and is colourfast. Graffiti can also be easily removed using solvents without affecting the graphics or enamel.
Visit the company’s online portfolio to see the many applications and advantages of vitreous enamel or, for further details, contact:
was approached by London Underground to provide remote terminal units (RTU) for telemetry control and monitoring of the primary plant, owing to their strong functional compatibility with the HOST SCADA system.
The new RTUs, which support an array of TCP/IP based open protocols, also support remote downloads for configuration over established TCP/IP links, negating the need for site presence once installed.
However, this raised a problem, how to transfer Ethernet traffic without going to the expense and disruption of laying miles upon miles of fibre optic cable.
FOR MORE INFORMATION W:
www.westermo.com
The Wolverine product range from industrial data communications company Westermo made this possible.
The SHDSL technology provided by Westermo made it possible to re-use the existing pilot communications infrastructure running the length & breadth of the Underground to transfer Ethernet traffic at speeds of up to 5Mbytes over long distances (e.g. +/- 15Km).
In total, 35 pairs operating in redundant ring configuration, are being installed as part of the SSR Power upgrade project to the Metropolitan and Circle lines and are currently set to come into service in December 2010.
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