Football Stadium Lights

Football stadium lights

 

Football is a highly competitive collective sport and is a popular sport in the world. The history of the development of football is enough to illustrate the vitality and influence. According to the rules of FIFA, the length of the football field is 105 ~ 110m and the width is 68 ~ 75m. There must be no obstacles at least 5m outside the bottom line and the sideline to ensure the safety of players.

Football stadium lighting design

1.Installation method There are two basic arrangements for the venue lighting: four-corner arrangement-the lamps are installed on the high tower near the diagonal extension of the pitch; The latter can be subdivided into two ways: (1) multi-tower (pole) installation, with 2, 3 or 4 towers on one side of the court; Form a light band parallel to the court’s sideline.

2. four-corner arrangement The corner tower structure installation method is acceptable. The height of the lighthouse should ensure that the angle between the bottom row of lamps on the tower and the center of the stadium and the stadium is not less than 20 °. In order to reduce glare to athletes and spectators, this angle can be relaxed to 30 °, but the investment of the lighthouse will Increases, and the ratio of vertical illumination to horizontal illumination decreases. The midpoint of the court’s sideline should be at least 5 ° outward to ensure vertical illumination on players near the sideline. By increasing this angle, for athletes moving towards the bottom line, glare is reduced and vertical illumination is increased at the same time. The limit of increasing the angle depends on the ceiling of the stands and the shadows on the court that hinder the lighting of the lamps. The midpoint of the goal is at least 15 ° outwards to limit the glare of the goal area player when corner kicking. The two angle limit lines determine the location of the lighthouse. The ideal way is to place the lighthouse as close as possible to the diagonal extension of the court. In order to ensure that the entire stadium is illuminated, the angle between the bottom row of lights of the lighthouse and the stadium is not greater than 70 °, so that the minimum distance from the lighthouse to the corner of the stadium can be effectively determined.

3.Side-mounted lightsRecommended position for side-mounted lights. The requirements of floodlights are suitable for both multi-towers (2, 3, and 4 towers on one side) and light strips. From the perspective of the vertical axis of the stadium, the minimum value of 20 ° is only applicable to training fields and low-level stadiums, because the glare control level is low at this time. When α is 25 °, the glare is controlled well, and at the same time, the vertical illuminance is high. Although the increase of α is beneficial to the control of glare, the vertical illuminance component is reduced, and the investment of the lighthouse or the road will be greatly increased. It is impossible to raise the ceiling of the stand in order to increase the angle of α, although the structure can withstand floodlighting. The elevation angle of the floodlight near the side line is determined by the angle β. If there is an appropriate ratio between horizontal illumination and vertical illumination, the angle β should not be greater than 75 °. If the luminaires on the edge of the ceiling of the stands do not have a proper β value, the floodlights can be installed under the ceiling or other special methods. There are 3 or 4 sets of flood lights on each side of the court. When the β value is between 75 ° and 60 °, it is necessary to use a 4-tower scheme on each side to ensure a proper uniformity of illumination. When the β value is between 60 ° and 45 °, each side should be considered.

Standard illumination of football field lights

Football lighting is divided into indoor football field lighting and outdoor football field lighting, and different ways of installing lights are also different. The standard is to determine the lighting standard according to the function of the football field. It is divided into seven levels. The illumination and training activities are 200lx, 500lx for amateur competition, 750lx for professional competition, 1000lx for general TV broadcast, 1400lx for large-scale international television broadcast, and 1400lx for TV emergency 750lx.

Arrangement of football field lights

A number of lamps are installed on the poles around the football field. The height of the football field poles is about 8-12 meters. There are 2 to 6 spotlights on each pole. Standard professional football fields and stadiums use 18 meters. 40m high pole lamp is used as the lamp pole. The upper lamp is configured with the number of lamps and the style and power of the flood light according to the design requirements. The lamp pole is rolled with Q235 high-quality steel plate. Painting treatment; anti-rust and anti-corrosion; durable for more than 30 years;

The lighting characteristics of the football field

The quality of football field lighting mainly depends on the level of illumination, uniformity of illumination and control of glare. The level of lighting required by athletes is different from that of spectators. For athletes, the level of lighting required is relatively low, and the purpose of the audience is to watch the game. The lighting requirements increase with the increase in viewing distance. The degree of glare produced by a luminaire depends on the density of the luminaire, the projection direction, the number, the position in the playing field, the ambient brightness, and so on. In fact, the number of lamps is related to the number of auditoriums in the stadium. Comparatively speaking, the training field only needs to install simple lamps and lanterns; large stadiums need to install more lamps and lanterns by controlling the beam to achieve the purpose of high illumination and low glare.

What are required for the football field?

Almost every game requires the use of live broadcast technology, which also places higher requirements on football stadium lighting.

Football field lighting and competition related requirements

(1) Generally, the installation position of football field lighting fixtures is not allowed directly above the field;

(2) There are areas in the football field where lamps are not allowed to be installed, which are mainly aimed at locations where lighting will adversely affect the main line of sight during the game;

(3) The installation position and projection angle of the football field lighting fixtures should avoid glare to football players;

(4) Prevent the direct light of football stadium lighting fixtures from affecting football players and auditoriums.

What are the advantages of the intelligent football field lighting system:

1. Significantly improve management efficiency;
2. Guarantee the safety of sports lighting;
3. Easily achieve secondary energy saving;
4. Light switch mode. Through the intelligent lighting system, the lighting of the football field is more professional, so as to meet the lighting needs of many football fields

How to choose football stadium lighting

The lamps used in football stadiums are generally high pole lights or flood lights. The position of the lamp can be installed on the edge of the ceiling of the stands or above the poles, and the poles are installed around the stadium.

1. The football field has a wide area, and the length of the 11-a-side football field is over 100 meters. Installing lights in such a large sports field requires high power and projection distance of the lamps. According to the different specifications of football stadiums, 400-800 watt LED lamps are generally used. Considering the light irradiation distance, we usually choose condensing LED lamps.
2. The installation height of football field lamps is generally very high. The height of standard 11-person football field lamp poles can reach 25 + 30 meters. This height has brought a very great test to the daily maintenance and management of the lamp. Therefore, LED lamps used as football field lighting are also superior to other types of lamps in various performance indicators. It is specifically manifested in the stability of the chip, good heat dissipation performance of the housing, high protection index, tight sealing of the entire glue filling of the lamp, automatic discharge of water vapor, and stable power drive.
3. The performance indicators of high-quality LED football field lighting fixtures are as follows: adopt chip-type serial LED chip arrangement, and try to choose chips of large brands; fin-type heat dissipation housing, high-power lamps have good heat dissipation and help extend the life of the lamps; Exhaust valves are installed to automatically discharge the moisture accumulated in the lamp body; controlling the lighting angle at 60 degrees can effectively extend the projection distance of the lamp.

How does football field lighting compare with LED and metal halide lamps?

Metal halide lamps

In the past, traditional football stadiums generally used metal halide lamps or flood lights of 1000W and 1500W. Due to the disadvantages of traditional lamps, such as glare, high energy consumption, short life, inconvenient installation, poor color rendering, and insufficient actual brightness, etc. It is difficult to meet the lighting requirements of modern stadiums. A few years ago, football stadium lighting mostly used traditional high-intensity gas discharge lamps-metal halide lamps, the lighting power of up to 1000W-2000W, the installation height of the lamps can reach 50m-60m. However, metal halide lamps have short service life, single color temperature, and long startup time.

LED Stadium Light

With the rapid development of LED lighting applications, the application of LEDs in football stadium lighting has also attracted more and more attention. So far, many new and converted football stadiums at home and abroad have adopted LED stadium lights, especially professional football stadiums. It is expected that more football stadiums will use LED lighting before the Qatar World Cup in 2022. LED lamps have gradually replaced traditional metal halide lamps and become the ideal choice for large outdoor stadium lighting. Special LED football field lighting lamps are more and more popular due to their high luminous efficiency, low carbon energy saving, small size and light weight. Here, Youge Sports Lighting will explain the selection of LED lighting for football stadiums through detailed technical parameters.

Advantages of football field LED lights

1.LED lighting is very suitable for sports lighting due to its unique characteristics such as long life, green environmental protection, high efficiency and energy saving, and instant start. Because the football field has to take into account both the game and the TV broadcast, the lighting requirements are very high, and a series of issues such as the stability, glare, and flicker of LED lighting are required.

2.The use of LEDs in football stadium lighting must meet the corresponding requirements in product performance and application technology. In this regard, the LED stadium special lighting produced by our company uses a unique light distribution technology, and its light efficiency is better than other ordinary LED lights. Improve 25%; 144 kinds of light distribution curve, precisely control the light, improve the utilization of light, and try to project the light effect originally projected outside the venue into the venue to improve the lighting efficiency.

LED football field spotlight

The spotlight used on the football field is also called spotlight. It is a lamp that specifies that the illuminance on the illuminated surface is higher than the surrounding environment. Generally, it can aim in any direction and has a structure that is not affected by climatic conditions. It is mainly used in large-area mines, building outlines, stadiums, overpasses, monuments, parks, and flower beds. Almost all large-area lighting used outdoors can be considered as lamps. Bright colors, good monochrome, soft light, low power, long life, light length up to 80,000 hours. In addition, its LED light body is compact, easy to hide or install, not easy to damage, and has no heat radiation, which is beneficial to protect exposed objects. The scope of application is wide. The beam angle of the lamp is wide and narrow, ranging from 0 ° to 180 °. This particularly narrow beam is called a searchlight.

Spotlight performance:

1. The internal and external anti-vibration structure design is adopted to effectively solve the problems such as the bulb falling off due to strong vibration, the shortening of the life of the bulb, and the breakage of the bracket.
2. Using high-efficiency gas discharge lamp as the light source, the lamp has a long service life of more than 10,000 hours, which is especially suitable for outdoor unattended lighting in large areas.
3. The use of lightweight alloy materials and high-tech spraying technology, the shell will never rust and never corrode.
4. Adopt new technology such as piping to ensure the integrity of the shell, reliable sealing, waterproof and dustproof.
5. It has good electromagnetic compatibility and will not cause electromagnetic interference to the surrounding environment.
6. The overall heat dissipation of the lamp is good, which can reduce the probability of failure. The advantages of LED floodlights are: colorful floodlights, good monochromaticity, soft light, low power, long life, and long lighting time of 50,000 hours.

What are the factors when choose the football stadium lights

The performance of LED luminaires mainly depends on the three major aspects of chip, drive power and heat dissipation of the housing:

1. The chip’s stability, luminous efficiency, light lifetime, power factor, color temperature, arrangement and other technical parameters are important factors affecting the quality of the lamps. For outdoor football stadium lighting, we can use long-term design and installation practices for everyone Provide parameter reference. Whether using a chip or integrated (COB) chip, good stability is the key. The light efficiency is ≥130LM / W, the color rendering index is ≥80Ra, the light lifetime is not less than 3 years, and the power factor is between Above 0.95, color temperature ≥5500K is positive white light. I believe that with the reference of these technical parameters, everyone has a clear idea when choosing the chip configuration of football stadium lamps.
2. The driving power of LED lamps is also the key to directly determining the overall performance of the lamp. Whether it is an external power supply or a built-in power supply, it is required to have good stability and adapt to different climatic environments. In this regard, our commitments for 3 years warranty are usually Is to choose a big brand reliable power.

   

3. There are two major factors in the LED lamp housing, one is the heat dissipation performance of the housing, and the other is the waterproof performance. The fin-type heat dissipation shell design has been recognized by the industry for its excellent heat dissipation performance. Based on the fin-type heat dissipation design, Youge Sports Lighting has incorporated respirator technology (that is, installing breathing at a suitable position on the lamp housing). Device, it is convenient to timely remove the heat and moisture from the lamp body, and at the same time block the outside moisture from entering the lamp body), so the heat dissipation performance is very good. On the other hand, it is tightness. In addition to considering the scientific design of the lamp housing, the details such as sealing rubber ring and connection port are also important. The overall protection level should not be lower than IP65, and it should not be low in the hot and humid climate environment all year round. To IP66. Breathable LED lamps, LED spotlights for outdoor football stadiums

To sum up, LED lamps used as outdoor large stadium lighting, various outdoor environments, such as outdoor high-altitude, must be scientifically selected in accordance with specific technical parameters and actual needs when selecting lamps. Good football venues Coupled with a high-quality lighting system is not only a good expectation of the sports lighting industry, but also the well-being of the users.