Can I use a light guide lighting system for the tunnel?

The application of light guide lighting technology in tunnels or basement corridors has been successfully used in many foreign countries. The lighting system is basically installed vertically, with vertically oriented light pipes passing through the complex ground and bringing natural light into the ground. In order to deliver a large luminous flux, the diameter of such light guides is generally relatively large.

From a lighting point of view, a tunnel is divided into four zones: the entry zone, the transition zone, the tunnel zone, and the exit zone. People approach from a bright environment during the day, and the process of entering and passing through the tunnel is very different from driving on a general road, because visual problems will occur during this process.

First of all, the key to the design of the entrance area is to eliminate the black hole phenomenon and make the road surface reach the necessary brightness level at the entrance, so a light pipe system must be installed at the entrance. Secondly, the brightness level of the transition zone should be reduced step by step, and a small-aperture light pipe system can be selected. Again, the visibility in the tunnel area is lower than the average road surface, and the brightness level is recommended to be 5-20cd m2

Under this low level condition, it is not possible to use a continuous light band, so it must be used to prevent interfering strobes, and the presence of flickers cannot be avoided by electric light sources, so the light pipe system is very suitable for the application in tunnel areas. Finally, this area of the exit zone is prone to a strong glare effect, and the use of electric light sources can only enhance this glare effect, so it is also very suitable to use a light pipe system in this area. In addition, whether the tunnel can use a light guide depends on what is on the tunnel, and if the tunnel is through a mountain, it is difficult to install a light guide.

But in any case, the use of light guides in tunnels is very practical and adaptable.

Tunnels can use light pipe lighting system, which can be widely used in office buildings, subways, basements, factories, mobile houses, office spaces, exhibition halls, zoos, botanical gardens, oceanariums, troops, prisons, logistics centers, ports, airports, railway stations, light rail, shopping malls, supermarkets, hotels, residences, villas, high-end clubs and other space places.

The whole system is most concerned about the light guide performance and service life of the system, the light guide tube lighting system produced by Nanjing Jet, the inner wall of the light guide tube has 5 layers of special film to ensure the efficient transmission and stability of light, the total reflectivity of the material reaches 98%, and the characteristics of the light guide tube: light weight, corrosion resistance, high reflectivity.

Light guide lighting system can be used in the tunnel, generally as long as the light is dark tunnel, underground space, rail transit tunnel can be installed light guide lighting system, at present, China has done a lot of related cases, the current tunnel installation light guide lighting system is very mature, light guide lighting energy saving and environmental protection, is a good product.

The use of light guide lighting system in the tunnel should be combined with the actual situation of the mountain, and it can generally be used.

Beijing Weirikang light guide lighting system does a good job in this regard, you can consult their company for more details.

Yes, Beijing Oriental Scenery New Energy Technology is the earliest professional manufacturer in China to develop and produce light guide lighting systems, you can go to this company's ** to see.

Legal analysis: China's current industry standard "Code for Design of Ventilation and Lighting for Highway Tunnels" puts forward the following requirements for the light source and lamps of tunnel lighting. 1. In general, it is advisable to choose a light source with high efficiency and good fog permeability.

2. Short tunnels, tunnels near towns with fewer diesel vehicles, emergency parking belts, pedestrian crossings, and vehicle crossings can choose light sources with higher color rendering index. 3. The service life of the light source should not be less than that of the lamp, and the protection level of the lamp should not be lower than that of the lamp, and the lamp should have an anti-glare device suitable for the characteristics of the highway tunnel. 6. The structure of the lamp should be convenient for replacing the bulb and accessories.

7. Lamp parts and lanterns should have good anti-corrosion performance. 8. The installation of lamp accessories should be easy to operate, and the installation angle can be adjusted. 9. Lamps and lanterns shall not invade the boundaries of tunnel buildings.

10. The arrangement of lamps and lanterns in the middle section should meet the flickering frequency lower or higher than 15Hz.

Legal basis: "Detailed Rules for the Design of Highway Tunnel Lighting".

In order to implement the national technical and economic policy, unify the road and tunnel lighting design standards, guide the highway tunnel lighting design to conform to the principles of scientific and reasonable, economic safety, and efficient utilization, and provide lighting technical basis for tunnel operation, these detailed rules are formulated.

Highway tunnel lighting should be designed for dimming control.

The lighting design of highway tunnels should actively and steadily adopt new theories, new technologies, new materials and new equipment.

Some tunnels are brightly lit, do they still need to be lit? Energy Saving Standards and Measures, Lighting Control Design Principles are two separate chapters of the new standard, compared to the old standard and the largest content. The reduction scheme is used to reduce the energy consumption of tunnel lighting and to specify new standards.

Differently, the new standard applies the "Intermediate Vision Theory", "Based on Reaction Time" and "Small Target Object Visibility Theory", and the basic lighting (intermediate illumination) with LED light source, unwelded light source and backlight illumination can be reduced to 50, 80 and 80 of the brightness standard, but should not be less than. At the same time, the new standard also regulates the dimming scheme for night lighting in tunnel lighting.

On the basis of the experience of the application of the old standard, the new standard has proposed a large number of improvements and extensions, and has designed bright design conditions in more detail. For example, the new standard regulates the design time of lighting for road tunnels**; The concept of "optical long tunnel" was introduced, which avoided the illumination design of the knife; In order to improve the road design speed, increase the distance between the lighting design standard and sections by 120 km/h; The efficiency of the light and LED lamps specifies the power factor; When selecting a light source, the adjacency of the transluminator and the color change; The "Average Illuminance Conversion Factor" was introduced to facilitate the calculation of the number of lights. There's more.

An optical length tunnel means that the driver is located in ** (meter height), and the illuminated parking distance from the tunnel drive to the tight parking distance does not exceed 500m in a short tunnel with a geometric length. Therefore, the "optical long tunnel" is a short tunnel from the actual length, but since it does not see the hole, the accessibility is not high, and the optical connection from it is a long tunnel. The new standard does not define an optical length tunnel.

First of all, underwear is generally used at the entrance to the urban tunnel, the sky is relatively large, the section of the room close to the hole is small, the brightness of the hole is great, and it is large during the day. The brightness of the tunnel lighting part and the transition section needs to be high, long-distance, and high-energy consumption; Second, urban tunnels are generally pedestrian, non-motorized vehicles, and motorized vehicle mixed channel tunnels, so the brightness should reach at least 2 cd m2 (i.e., general tunnels need to be installed with lighting. ）；These three are urban tunnels that are usually connected to urban roads, and urban roads generally have road lighting facilities, so tunnels adopt general road lighting design standards.

The lighting design of urban tunnels should pay full attention to these characteristics, and at least two control modes should be set up at night and the enhanced lighting should be turned off at night. On the premise of affecting traffic safety (if you can't cause flickering), landscape lighting can be appropriately added in the top, side walls, etc., which can enhance the landscape and avoid visual fatigue for drivers.

This kind of tunnel needs to be lit inside, because the light in the tunnel is relatively dark, and it is easy to get into a car accident.

I think this kind of tunnel needs lighting, because the tunnel is brightly lit, then the car itself is very dark, the sense of presence is very low, it is easy to be invisible, this is easy to cause accidents, so in order to reduce this unnecessary accident, I think it is necessary to turn on the lighting, so that you can improve your own sense of presence and remind others.

It needs to be opened, because when you go out of the tunnel, if it is night, it will not change the light and dark, make your eyes uncomfortable, and cause accidents.

Yes, because it is dark in the tunnel, only by turning on the lights can you see more clearly, so that the driver can see more clearly.

Of course, you need to turn on the lights, because there are relevant regulations in China's traffic laws, and you must turn on the low beam after entering the tunnel.

Yes, so that some cars can see your car clearly, because no matter how bright the lights are, it will affect the vision of some people.

This kind of tunnel still needs to be lit, after all, this kind of tunnel is particularly long, and if the car does not have these lampshades, it is particularly dark, easy to cause accidents, and it is particularly dangerous.

For those tunnels that are long but very well lit, if we don't turn on the lights while driving, our presence will be weakened. Especially in those tunnels that need to travel for more than ten or twenty minutes, when the cars around us do not turn on the lights for a long time, we will find that we will slowly ignore the existence of the other party, and this situation is very dangerous in the process of driving. So the best way to keep your presence from being diminished in the tunnel is to turn on the lights.

According to our safety regulations, it is necessary to turn on the lights, in fact, the driving lights are not for your own seeing, but more importantly, to take care of others, so that the car behind you knows your existence and prevent traffic accidents.

The speed of the car = the length of the tunnel The time it takes to walk through the tunnel = the length of the car The time that the light shines on the car.

In this way: the rough length of the car = (the length of the tunnel and the time it takes to pass through the tunnel) * the time that the light shines on the car.

High light efficiency, high-quality and high-brightness LED light source.

The light distribution is scientific and reasonable, which meets the lighting uniformity and anti-glare requirements of each section of the tunnel.

The modular design of the light source, each module can be installed and disassembled separately, which is convenient and fast to maintain, and reduces a series of costs.

The series of products are rich in variety, which can meet the lighting requirements of the four sections of the tunnel: the introduction section, the transition section, the fundamental section and the exit section lamp Sodium lamp refers to the lighting device with metal sodium vapor as the working substance. The tubes of sodium lamps are also filled with mercury and noble gases, but it is sodium vapor that actually works. When sodium is ionized and excited, it emits yellow light at 589 nm, which is used directly for illumination, rather than excitation of fluorescent substances to emit white visible light like fluorescent lamps.

Low-pressure sodium lamp: the vapor pressure in the arc tube is Pa when working, the light is almost monochromatic, concentrated in 580 nanometers and nanometers, and the yellow light area is more sensitive to the human eye, so the luminous frequency is as high as 150 lumens and more watts, but the color rendering is too poor, and it is only used for occasions that do not need to distinguish colors, especially for street lighting.

High-pressure sodium lamp: increase the vapor pressure of nano, and add a small amount of mercury, the spectral line of light is wider, so the color rendering is better than that of low-pressure sodium lamp, the color temperature is 2100 open, the light efficiency is 72 130 Pa flow watts, it is the main light source of road lighting, and is also used for lighting on stage and other occasions.

Lighting uniformity of tunnel lighting: Tunnel lighting generally requires uniform illumination, because uniform illumination is beneficial to the driver's travel safety, can see the road surface more clearly, and makes travel more convenient and safer.

Glare control of tunnel lighting: In tunnel lighting, the glare of the light source must be controlled to a minimum, so that the driver can have enough visibility to the road conditions and make travel safer.

Tunnel lighting should do a good job of emergency lighting: in addition to the lighting of our daily travel, emergency lighting should also be set up. In case of an emergency, emergency lighting can provide us with lighting in time to avoid traffic accidents.

Separate lighting of different sections in tunnel lighting: tunnels are generally relatively long, so when carrying out lighting design, different lighting should be used for different areas, such as the light brightness at the entrance of the tunnel can not be higher than that of the middle section, such as the chain fruit is coarse, which will make the driver feel uncomfortable and even cause danger.

In short, the lighting design everywhere should be meticulous and tend to be perfect, so as to better ensure our travel safety!