TECHNICAL | LIGHTING
Above:
LED illumination strips are low energy, long-life for lighting in dark trafficked areas, such as underground
fitting of tunnel lighting in the permanent, fixed phase, products with full 360-degree life cycle.
Q: What examples are there of tunnel projects with specific design or illumination needs underground that you have been able to solve/support/service?
DW: Design challenges would be the environmental temperature and that lighting is required 24-hours a day at a certain brightness over long distances and to incorporate an emergency lighting solution also. With this in mind, we have incorporated many design
features into our strip to bring the heat down; heat is the biggest enemy for LEDs. We can’t say what they all are but that is the primary thinking behind our thought process to offer such a long and reliable solution. Low heat is at the heart of the tunnel strip design, INFINILED, so we can offer full warranty and cover large distances, with optimum brightness, and operating constantly underground for long periods of time. We are very proud to have designed and supplied
the temporary tunnel lighting systems on HS2 tunnels and viaducts with our INFINILED LED lighting strip and distribution systems. We worked on various different parts of the project, including the Chiltern Tunnel, Colne
18 | September 2023
Valley viaduct and the Bromford tunnels. We used our 150m-long solution, so we could gain large distances of 300m between power sources, resulting in lower expenditure for the client.
Q: What were the options and how were the choices made to optimise the solutions?
DW: The common high voltage strip is simply not reliable enough over long distances and the requirement of working 24/7 for maybe over four years, for example. We went back to the lab and, through a series of tests, we were confident to offer a full warranty with our INFINILED solution. To achieve these outcomes, the benefits and differences
in the quality of our 110v, AC strip – especially compared to many other high voltage strips on the market – are we can achieve distances of 150m – and sustain for over four years. For that, we use genuine both Dow Corning- patented silicone housing and 3M tape (SGS-tested), respectively; and, highest quality chips on the market. The 110v version is designed for tunnels and
construction. And, if a DC version is used rather than AC then it will last for an even longer time, although it would not operate over such long distances.
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