Lighting in tunnels is very important as well as complex because it is not only a question of illuminating a space, but it is also necessary to provide security and visibility to a transit zone. In addition, it is necessary to take into consideration the humidity that is usually concentrated in the environment, the type of vehicles that are going to circulate through the tunnel, whether it is road or railway, as well as the length of the tunnel. Therefore, not any luminaire is suitable for these installations.
In the case of a long tunnel, it is necessary to divide the space into four main zones, each with different characteristics and needs. The meters before entering the tunnel is called the access zone. The threshold zone is the first inner section of the tunnel and this must be the most illuminated since when accessed from outside, with sunlight reaching approximately 100,000 lumens, sudden insufficient illumination may imply a very dangerous momentary blindness when driving . The transition zone does not require very strong illumination because the eye is already accustomed to the amount of lumens in the environment and a high level of lumens is not required. In this central zone the illumination remains constant. Finally, the area of exit is the one that presents the least complications since the eye has more facilities to adapt to the light change.
Depending on the time of day, it is also necessary to define various level of illumination, because at night it is not so necessary that the tunnel to be very illuminated, since the eye is already accustomed to the darkness. However, during the day, lighting must be higher. Over the years, Airfal has specialized in technical lighting and its catalog features a line of luminaires with high technical specification for almost any application.
Taking into account these characteristics, in addition to the different models of luminaires that Airfal offers, it would be advisable to take into account the possibility of installing regulators to intensify the illumination or reduce it depending on the needs.
Tunnel light fixture
Airfal Tunnel luminaire is a watertight model built with self-extinguishing materials, not flame extender. It is designed to absorb the vibrations of vehicles passing through and to prevent them from affecting their operation. To minimize and facilitate maintenance work, its components are long lasting, up to three times greater than a conventional luminaire. It can work in areas with temperatures between -20 ° and 55 ° C depending on the power chosen, which makes it possible to install on almost any surface. The available powers oscillate between 14 and 80W and the adjectives that best define it are efficiency and performance.
TR1 light fixture
Airfal TR1 luminaire is a watertight model with IP68 and IK10 protection. In spite of its industrial design, the version with high performance allows its installation in interior spaces. Its power supply voltage is 220-240V, 50-60Hz (electronic) although there is the possibility of having other voltages, always under consultation with the technical department.
The Pegaso model is built with self-extinguishing material, suitable for zone M1. It has a protection IP68 and IK10, the maximum protection against penetration of water, dust and blows. This luminaire is manufactured for LED modules in constant current, its working temperature ranges from -25 ° to 40 ° C and the emission with LEDs gives a color temperature of 4000 ° K although, as with TR1, there is the possibility of adapting to other powers and regulations. This model can be covered for extra protection.
With the maximum IP and IK, the Rinox luminaire is made of polycarbonate, although the end caps and the screws are made of stainless steel. It can work in environments ranging from -20 ° to 50 ° C and achieves a power of up to 80W. This is the possibility of implementing an online connection system, necessary for these infrastructures. Iin addition, its IK10 and IP68, give a great versatility for many applications.
The Mustang model is designed for LED modules and features a 220-240V, 50-60Hz power supply. Although its body is opal polycarbonate, the end caps are made of stainless steel, which gives it maximum sealing. It can operate in -25 ° to 40 ° C ambient temperature and reaches a lumens emission of up to 4750lm with 32W of power, although it is possible to have other powers on request.