Recently, the Guangxi Zhuang Autonomous Region Housing and Construction Department approved the release of the Guangxi Provincial Engineering Construction Local Standard “Technical Specifications for Urban and Rural Road Semiconductor Lighting Engineeringâ€. According to the standard, in the semiconductor lighting project of newly built, rebuilt and expanded roads, the color temperature requirements of lighting fixtures should be clearly defined. It is not appropriate to use cold color light sources for municipal roads. At the same time, further promote energy-saving renovation of lighting, and gradually improve the functions of monitoring systems to make urban lighting construction more Standardization, energy saving, and intelligent development.
In May of this year, the Housing and Construction Department of Guangxi Zhuang Autonomous Region issued the “Working Plan for Urban Lighting and Construction Management (2015-2016)â€. According to the plan, before the end of 2015, cities and counties in Guangxi will vigorously promote urban lighting construction and energy-saving renovation, and basically complete the elimination and transformation of high-energy and high-contamination mercury lamps and incandescent lamps in urban lighting. The transformation will mainly use LED energy-saving products. To ensure that the annual energy saving target of 3% is achieved.
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In order to standardize the city's urban lighting construction standards in the autonomous region, the evaluation indicators in the “Technical Specifications for Urban and Rural Roads Semiconductor Lighting Projects†have supplemented or revised various aspects such as lighting indicators, energy saving measures and glare restrictions. This specification applies to the design, construction, acceptance and management of semiconductor lighting engineering for new, rebuilt and expanded roads in Guangxi. The standard has been implemented since August 9, 2015.
According to the standard, the color temperature of semiconductor road lighting fixtures should not be higher than the nominal value of 6500K, and the color temperature is divided into warm, white and cool colors from low to high. According to different geographical environments and different grades of roads, lamps with corresponding color temperatures should be used. For example, in the fast road, main road, secondary road, and foggy areas in the mountains, lamps with lower color temperature should be used. The color temperature of the same batch of light source should be the same, and the cold light source is not recommended for municipal roads.
According to relevant experts, on the one hand, the reason is that the human body has poor visual comfort for the cool color light source, and it is not suitable to use a cool color light source; on the other hand, the light source with a higher color temperature is whiter, which makes the driver feel a foggy feeling visually. At present, the color temperature of urban road lighting in Nanning is moderate, and in the future lighting renovation, appropriate adjustments will be made according to the influence of light efficiency on human comfort.
In order to fully reflect the characteristics of environmental protection, pollution, power consumption, high light efficiency and long life of semiconductor road lighting, according to the regulations, in addition to residential areas and a few roads with special requirements, measures to automatically reduce the power of the light source should be adopted in the middle of the night. To reduce power consumption.
In terms of safety, the functions of urban road lighting monitoring systems also need to be gradually improved. According to the design requirements, the monitoring system can realize the functions of group control, group control, automatic or manual patrol, and selection of various electrical parameters according to different functional requirements. It should be able to automatically detect various faults of the system, and issue corresponding alarms such as voice, sound and light, and anti-theft. The system false alarm rate should be less than 1%. The monitoring system has multiple protection measures against lightning and anti-interference combined with hardware and software to ensure the reliability of the monitoring equipment.
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