What are the lighting standards of solar street light

Solar street light lighting products need to follow relevant street lighting standards to meet relevant requirements, such as the lighting range of the ground, brightness parameters, etc. Solar street light manufacturers often focus on the light efficiency of LED light sources, while customers focus on specific environments lighting quality. There is a conversion factor between light efficiency and light quality, which is related to the environment. Therefore, in the installation of street lighting products, a lot of specific research work needs to be done. In most countries, the lighting level of motor vehicle lanes is generally lower than the standard of CIE, that is to say, the standard of 2cd/m2 is not reached. Take the Netherlands as an example, the recommended standard of its National Lighting Committee is also 2cd/inz, but the value actually adopted by the national transportation department is even lower than lcd/mz. Regarding lighting requirements, the standard expressions in various countries are different. The CIE standard directly gives the specific values u200bu200bof total brightness uniformity, longitudinal uniformity, glare control index G and closed-value increase TI. In the new British standard, the indicators for the brightness part are the same as those for CIE, but for the glare control part, only the indicators of TI are specified and the indicators of G are not specified. The Dutch standard, however, only stipulates G and does not stipulate the indicators of TI. The standards of the United States, the Soviet Union and other countries also have their own characteristics. Some countries, such as the Federal Republic of Germany and Australia, are the same as the CIE 1965 standard, and their glare limit index is the light intensity value above the maximum light intensity angle, that is, it is stipulated that the use of cut-off, half-cut, and non-cut-off lamps is allowed. one of the categories. The environmental problems in solar street light lighting have attracted more and more attention. Good solar street light lighting does not need to illuminate the road itself, and its surrounding environment should also be given a certain amount of lighting. In the 1977 CIE recommendation standard, the problem of ambient lighting has been mentioned and the specific value has been given, but it has not been It is officially included in the evaluation index, and the new British standard has accepted the CIF) proposal, and clearly put forward the evaluation extension of the environmental ratio (SR). Although it is more scientific and reasonable to use brightness as a basis to establish lighting standards than to use illuminance as a basis to establish standards. However, if the lighting design of the specific road has been made, and the final result of the brightness value is obtained, then we can check whether the design and the actual one are consistent by measuring the illuminance. If the illuminance matches then the brightness should also match. In addition, since measuring brightness requires a brightness meter, the measurement work is also time-consuming and labor-intensive, which cannot be done by most single payment in the short term. Therefore, some countries, such as the United States, have proposed a set of brightness data as a standard, while retaining the illuminance standard. There is a conversion relationship between the average illuminance and the average brightness as shown.
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