Products, Materials & Tools | Jul 18, 2011

Obelux to Contract the World’s First LED High-Intensity Aviation Obstacle Light System

Digita Oy, the leading Finnish distributor of radio and television services, has contracted Obelux Oy to install the world’s first LED high-intensity obstacle light system on a broadcast mast in Tiirismaa, Finland. The mast is 327 meters, over 1 000 feet, high and it is the tallest construction in the country. The new LED lights will replace old Xenon technology, which requires costly maintenance.

“The low total life-cycle costs and long maintenance free operations of the LED technology were critical selection criteria to us”, explains Jukka Kokkonen, System Designer, Digita Oy. “And of course working with an experienced supplier who is able to build robust systems to withstand the extreme environmental conditions our broadcast mast is subjected to.”

“We are proud to be partnering with Digita in this ground-breaking project. This is an industry first: we are the first company in the world to design a high-intensity LED light system, and to deliver long lifetime LEDs on an exceptionally tall mast”, says Jyrki Sipinen, General Manager, Obelux Oy. “Thanks to LEDs, in the future mast operators will not need to worry about spare parts and the maintenance costs of the lights even on the tallest masts. We give the products 5-years warranty and promise 10-years of reliable life without the fear of unplanned site visits and high maintenance costs”, says Sipinen.

Light Head:
• 120° beam spread
• 252W power consumption
• Flashing White (20-60 fpm)
• 200 000 cd at Day, 20 000 cd at Twilight, 2 000 cd at Night
• Light Head’s (LH) power consumption is 252W
• Weight 27 kg
• Height 843 mm, width 353 mm, depth 213 mm (ICAO type)
• Mounting set included (hot dip galvanized steel)

Light head Controller:
• Controls up to 3 Light Heads
• Cabinet includes an active PFC Power Supply (PS) and Controller Module (COM)
• Fault monitoring and flash synchronization
• Options for GPS flash synchronization, GSM communication, and Ethernet data communication
• Nominal operating voltage 230 VAC
• Power Consumption (40FPM, 250 ms):
• DAY 350 W, cos Phi 0.9
• TWILIGHT 115W, cos Phi 0.8
• NIGHT 35W, cos Phi 0.65
• Two isolated RS -485 interfaces and two Ethernet ports
• IP communication
• Over voltage protection
• Fiber optic communication as option
• Mounting set included

Control Panel (optional):
• Includes a Controller Module (COM) and a LCD display
• Displays system status
• Sets system parameters
• Provides time signal either through external photocell or astronomical time
• Provides an alarm signal with relay
• Fiber optic communication as option

The Tiirismaa mast has three levels where high-intensity lights will be installed: 100 m, 200 m, and 296 m above the ground level. One medium-intensity light will be installed on top of the mast. On each level there will be three 120° beam light heads which in total cover the full 360° as required by ICAO. During the day the flashing white light effective intensity is 200 000 cd and it delivers total of 120 000 lumens. At night the light is reduced to 2 000 cd, and twilight mode will give 20 000 cd. On each level there is a light head controller which takes care of the power supply, fault monitoring, and synchronization of the lights. A control panel which is connected to every controller on all levels is situated on the ground floor. The communication between all the devices happens through Ethernet cables.

“One of the goals in our designing process has been easy installation and plug-and-play –thinking. They are extremely important when working hundreds of meters above the ground level”, says Sipinen. “The Tiirismaa installation will be a major step in making high-intensity LED technology a new industry standard in the most demanding flight obstacle applications.”

About Obelux Oy:
Obelux Oy is known for its continuous innovation in aviation obstacle lights and responsiveness in meeting industry needs. Having delivered projects to 50 countries in the world during the past 14 years, it has built a reputation for high quality, reliability and performance. Obelux’s products are compliant with ICAO and FAA rules. As one of the oldest companies in the world focusing only on LED technology, Obelux Oy is trailblazing high-intensity LED innovation.

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