Interpretation of the stadium lighting standards

Core tip: sports lighting gradually into the LED era, the stroboscopic effect of LED concern, a well-known electrical engineers to understand the stadium lighting standards, made ten interpretations. He believes that standards can guide enterprise innovation, the standard is another driving force for innovation.

In December 19, 2015, sponsored by the Chinese lighting network "for brand innovation" forum, a well-known electrical engineer through the interpretation of standard sports venues, puts forward eleven thoughts. He believes that standards can guide enterprise innovation, the standard is another driving force for innovation.

Interpretation: a standard of living, to learn to use.

All sports lighting standards can be divided into: national standards or industry standards, the standards set by the international sports organization, the International Commission on illumination CIE several standards and international broadcasters standard. For different purposes of the sports building, the implementation of the standard is not the same; the same sports building, held at different levels of competition, lighting standards are different. Standards are divided into product standards and application standards, product standards to determine whether the product is qualified, can meet the requirements of product indicators, through the test can determine whether the factory. Application criteria determine whether a product can be used and where it is used. Therefore, the two types of standards are interrelated and relatively independent.

Interpretation two: energy-saving lighting is an eternal topic, also is the enterprise to pursue the goal of forever!

In the new "sports building electrical design standard" JGJ

354-2014 proposed the general requirements of energy-saving application of sports lighting. The power density value of the unit illuminance of the site lighting of class B and above grade sports buildings shall be in accordance with the relevant provisions of the following table. Therefore, no matter what manufacturers of light, no matter what control system, should meet the norms of energy saving.

Unit power density of illumination

The basic requirements of television broadcasters: high brightness, high uniformity, suitable temperature and color rendering and low glare. In order to achieve the effect of energy saving, sports lighting should be based on the level of the stadium to choose the appropriate color temperature and color rendering of the light source. When the lighting requirements can be met, it is advisable to use high-power light source.

Interpretation three: improve the efficiency of lamps for lighting manufacturers, world without end! Is the pursuit of the goal of improving lighting effect.

At present, lighting efficiency has improved based on the fact that the implementation of the recently enacted "sports building electrical design standard" JGJ

354-2014, 2009 edition of the "national technical measures for design of civil construction" of electrical lighting efficiency make higher demands, namely "metal halide lamps should not be used to open lamp, the lamp efficiency should not be less than 70%".

Interpretation four: temporary lighting system has broad market, is widely used in sports.

In sports stadium, permanent lighting system lighting system equipped with long-term use of sports in sports facilities, sports building in the. The temporary lighting system during movement will provide no permanent or permanent sports lighting system lighting system lighting is not up to the requirements set by the temporary use of lighting system, the games after the end of the withdrawal. Supplementary lighting: when permanent lighting system does not meet the requirements of the game, to increase the site to site lighting illumination lighting system reached the requirements of the match, after the Games will complement the lighting system removed, lighting system restore the original permanent lighting system.

Interpretation: five illuminant chromaticity parameters controversy -- from the dispute to study.

Illuminant chromaticity parameters have caused controversy in the application in sports lighting, the controversial idea that FIFA a stadium artificial lighting TV parameters recommended value change. Take a look at the changes in the standard of illumination intensity, the color rendering index and color temperature have great changes in the industry, resulting in a great shock in the industry. (pictured below)

The change of illumination standard in football field

In fact,, lighting new international standards, not only FIFA, ITF, CIE, professional sports have a similar trend, the industry needs close attention, may also bring a new driving force, new product innovation.

Interpretation six: protection grade lamps.

"Sports venues lighting design and test standard" JGJ

157-2007 metal halide lamp should not be used to open lamp. The protection level of the lamp shell shall not be less than IP55, and the protection level of the luminaire shall not be less than IP65.

And "standard" electric sports building design JGJ

Proposed in 354-2014, metal halide lamps should not be used to open lamp, the lamp efficiency should not be less than 70%. The protection level of the lamp shell shall not be less than IP55, and the protection level of the luminaire enclosure shall not be less than IP65 in the place of inconvenient maintenance or serious pollution, and the protection level of the underwater lamp shell shall be IP68.

In accordance with the requirements of standardized products to meet market demand, the driving force of the remarkable standard!

Interpretation seven: targeting maintenance does not change the angle to the lamp?

"Sports building electrical design standard" JGJ

354-2014, open lamp should ensure that the maintenance does not change the pointing angle. Installed in the high altitude lamps should choose light weight, small size and small wind load coefficient products. C and below the level of the sports building, otherwise when the maintenance measures and can ensure the maintenance does not change the lamp aiming point, no ma. Lifting lamp is an effective measure, interested manufacturers can develop such products!

: Interpretation of the eight lamps will be developed with the voltage regulation function?

Voltage has great effect on the metal halide light output voltage is reduced by 10%, the illuminance is reduced about 20%; and vice versa. Code for electrical design of sports buildings JGJ

Proposed in 354-2014, voltage deviation venue lighting terminals of the allowable value shall comply with the following provisions:

First grade and grade a sports building should be second + 2%; B, and below the level of the sports building should be + 5%. Manufacturers are interested in the development of lamps with a regulated function.

Interpretation nine: actively carry out system development, efforts to create a new way of underwater lighting system.

Diving pool, swimming pool, swimming pool, surfing pool and similar places, including swimming pool and diving in the warm pool to relax, these places are allowed to enter, people in the water will increase the risk of electric shock due to a decline in body resistance. In the underwater lighting equipment, the insulation is easy to damp or water, resulting in leakage, the risk of electric shock risk increased significantly. Therefore, these places of underwater lighting equipment to prevent the use of electric shock rating for class III lamps. These places of underwater lighting equipment need to use safe low voltage (SELV) system, the nominal voltage is not more than 12V. The power supply should be placed outside the 2 area. Manufacturers can from the system point of view of the development and integration of underwater lighting system?

Interpretation ten: LED era must focus on two important parameters: R9 and strobe ratio.

Sports lighting gradually entered the era of LED, CIE in addition to the provisions of the general color rendering index calculation with 8 color samples, adding the provisions of the 6 kinds of calculation of special color index for color samples, including chroma high red, yellow and green, blue, and green leaf color and young women. The method of color rendering in China has also increased the standard color of Chinese young women. The special color rendering index is the color rendering index of the light source to ninth ~ 15 standard color samples selected by the International Commission on illumination (CIE).

Ri = 100 - 4.6 E (type: Ri special color index; E: the color samples in the reference light source and light source to be measured in color. )

LED sports lighting is not open around the R9, is currently pending in the study. Preliminary results: when there is a television broadcast, R9>0, HDTV, R9>20.

LED stroboscopic effect worthy of attention. The first is the stroboscopic stroboscopic effect assessment methods, at a certain frequency, the output luminous flux of the maximum value and minimum value than the output luminous flux maximum and minimum values, expressed as a percentage.

Second assessment index: strobe light output is above average and the whole part of the A1 light output ratio (A1+A2). FI=A1/ (A1+A2)

The value of 0~1.0 in.