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LIT BY SILL Sill Lighting has provided 1000 luminaires for High Speed 1, the shorter high-speed route second phase of the Channel Tunnel Rail Link (CTRL) which runs from St Pancras to Stratford, Ebbsfleet and Southfleet in North Kent then on to Ashford and Dover. It’s the first new railway in England for over sixty years. At St Pancras 200 Sill 022 projectors light the concourse area and 200 Sill 455 asymmetric projectors wash light down the brick arches of the flank walls. At the completely new Stratford and Ebbsfleet stations, over 300 Sill 453 projectors are used on columns and on the canopies for the exterior lighting of each station.
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Given the architectural heritage of the 1868 Grade I listed Barlow shed at St Pancras, it was important that a company like Sill with its experience in this field was selected for its ability in both functional and feature lighting. Peter Lawrence of Emcor Rail and MEP design manager for Corber, working for clients Rail Link Engineering, comments, “ We were confident to use Sill from previous experience of working with them on the Jubilee Line and the company was very helpful in providing lighting design calculations and modelling so as to meet the performance and aesthetic requirements – in fact Sill exceeded expectations on glare control.” He continues, “Being a listed building, English Heritage has been heavily involved in the project and it was pleased that Sill was chosen for the re-lighting of this historic building.” |
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Sill
lit the concourse areas and the St Pancras clock from locations in
the train shed up to nearly 30m high. In all, there are some 200 metal
halide Sill 022 projectors performing this, of which 75% are 400W,
and 25% 250W, all arranged at different heights across the span of
the glazed gothic roof structure. In order to meet the requirements
for illuminance, uniformity and glare, a special reflector and anti
glare system were designed. Sill’s 3D computer model of the building
allowed this to be rigorously tested prior to installation. There are
also over 200 Sill 455 asymmetric projectors washing light down the
brick arches of the flank walls and picking out the highly decorative
frieze at the top of each arch. |
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The two intermediate Stratford and Ebbsfleet stations are similar in layout and design to each other with covered platforms, canopies and open sections. The scheme involves 150W metal halide Sill 453 series projectors mounted on columns in the open section, and mounted high on the station columns for the covered area. For the canopies there are 70W versions of the same projector mounted at a lower height of 2.5 metres on the steelwork of the canopy itself. In all there are over 300 projectors used for each station, all having built-in 40W tungsten halogen emergency lamps. Sill’s original lighting scheme calculations were later modified to provide a minimum 125 lux for the covered and open platforms alike and 0.5 uniformity throughout, this bettering the required specification. Jim Finn, electrical installation manager for Emcor explains,“ As well as providing the correct illumination for pedestrians on the platforms, we needed to ensure that we had luminaires with the right cut-off angle so there was no danger of any glare to on-coming train drivers.” He continues, “This was achieved by Sill’s scheme from the outset and we chose the company as it presented the best design solution and delivery schedule for the equipment. We are very pleased with the final outcome and the service provided with special components for the project.” St Pancras International was
a seven-year project and several different teams were involved in the
design and implementation stages. Bob Bohannon,
general manager of Sill UK, is clearly enthusiastic about the project
and the results, but is keen to acknowledge the contributions of others
at all stages. "It wasn't just us," he says.
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