IACS CO., LIMITED (Yiwu Fuwei e-commerce firm)

In recent years, in order to maintain the sustained and healthy development of the national economy, the state has increased investment in infrastructure construction, such as the construction of railways and highways. The demand for such tunnel lights is increasing. In order to save energy, protect the environment, improve the quality of tunnel lighting, and in order to adapt to the sustainable development of tunnel operation management, it is necessary to find a reasonable new lighting theory and skill light source in combination with the special lighting environment and visual perception of the tunnel.

1 Comparison of the functions of conventional tunnel lights and LED tunnel lights

At present, most of the tunnel lighting uses high-pressure sodium lamps as the light source, but the high-pressure sodium lamps have many shortcomings in terms of radiation form, color rendering, visual sensitivity characteristics, power specifications, brightness control, etc., and the emerging LED tunnel lighting fixtures have excellent performance. In particular, the controllability of brightness overcomes many shortcomings of high-pressure sodium lamps and is becoming the mainstream lamp for tunnel lighting in the world today. The state has also introduced new measures for the “Ten Cities and Ten Thousand Cities” semiconductor lighting project, which has brought unprecedented opportunities for the development of LED tunnel lights.

LED (Light Emitting Diode) is a semiconductor light emitting technology. The earliest developed LEDs only emit red light for the indicator lights in electronic devices. With the development of technology, LED lamps have been able to emit various colors of light, and are widely used in many industries. The main application markets include the traditional display and signal market, backlight market, street lamps, tunnel lights, and automotive lighting markets. , outdoor landscape lighting and interior lighting market, special lighting market. LEDs have their unique advantages as tunnel light sources.

(1) LED tunnel light has low power consumption and energy saving, and its energy consumption is more than 40% compared with traditional high-pressure sodium lamps.

(2) The LED tunnel lamp has a long service life of 100,000 h under ideal conditions, while the life of the high pressure sodium lamp and the fluorescent tube is only 10,000 to 30,000 h.

(3) LED tunnel lights have high reliability, low daily maintenance and maintenance costs, mean time between failures (MTBF) of up to 20,000 h, and low mean time (MTBF) of high pressure sodium lamps and fluorescent tubes of less than 10,000 h.

(4) Reduce the construction cost of power distribution systems (cables, transformers, distribution boxes, bridges, etc.). For long tunnels and long-distance power supply, the proportion of cables and distribution facilities is particularly large. LED tunnels are used. Lights can greatly reduce investment in cables and power distribution equipment due to power saving.

(5) LED tunnel light can realize instant start, easy brightness adjustment, and has the advantages of no stroboscopic, wide starting voltage range, etc., and can realize various energy-saving modes, such as intelligently adjusting illumination according to the traffic flow of roads and tunnels.

(6) High-pressure sodium lamps, fluorescent lamps, and electrodeless lamps contain chemical pollutants such as mercury and lead, while LED tunnel light sources do not contain chemical pollutants and are environmentally friendly light sources.

2 high power LED tunnel light design requirements

(1) Basic lighting is required in the tunnel whether it is day or night. When the vehicle enters the tunnel during the day, the road surface brightness should be gradually reduced, so that the driver's vision has an adaptation process, and the entrance section is divided into an introduction section, an adaptation section and a transition section.

(2) Determine the length (S) of the lead-in section, the adaptation section and the transition section. Usually, the vehicle speed (V) is determined by the adaptation time of T=2s, which can be estimated by S=VT/3.6m; the exit section should also be set to transition. Illumination, in the case of two-way traffic, the same as the entrance section.

(3) There is no reinforced lighting at night entrances and exits, and street lights should be set outside the caves. The brightness should not be less than 1/2 of the basic brightness in the tunnel; emergency lighting should be provided in the tunnel, and its brightness should be no less than 1/10 of the basic brightness.

Yiwu Fuwei e-commerce firm is a very professional Led manufacturer who produces high quality outdoor led light. Our popular products are solar led lights, UFO lights, underwater lights and so on. If you have any question about the led product, please feel free to contact us.