Zhao Jianping: Designed to greatly benefit street lamp energy saving (Figure)
Zhao Jianping Aladdin Lighting Network Blog
Zhao Jianping, deputy director of the Institute of Building Physics, China Academy of Building Research, professor-level senior engineer, chairman of the Outdoor Lighting Professional Committee of the China Lighting Society, and chairman of the China Lighting Engineering Standardization Association.
A few days ago, the media reported that the German town of Lem Ge used energy-saving measures along with the street lights, saving electricity costs of 40,000 pounds a year. If a resident comes out in the evening, they only need to dial a preset number, tell their own way to the phone and when the street light needs to be turned on. The computer at the other end of the phone will control the street light to light up at the right time. Automatically extinguished.
In order to let the street lights go with them, the German town of Lem Ge used a lot of technology, and some people may feel that the problem is big, but in the end they succeeded in saving a large amount of electricity, which proves that the hard work is worthwhile. In fact, the energy saving of road lighting does have great potential.
In recent years, China's urban road lighting has developed rapidly. In 1999, there were only nearly 3 million street lamps in the country. In 2007, it reached about 10.5 million baht, and the installed power reached 1.8 million kilowatts. The annual electricity consumption is about 5.9 billion kWh. This number is still quite large, and there are energy-saving articles to do.
Neglected design link
There are many kinds of energy-saving measures for road lighting, which can be classified into three categories: one is energy-saving measures in the design stage of road lighting, the other is energy-saving measures during operation, and the third is energy-saving measures in management.
Among these three types of measures, the current emphasis on the second and third categories in China is also quite good in the actual work. For example, in many places, in the operation of street lamps, the measures of turning off the lights and reducing the power in the middle of the night are taken. One of the two lamps in one street lamp is turned off, which reduces the illumination of the road as a whole and saves energy.
But to really do a good job of road lighting energy conservation, in fact, the first type of measures, lighting design, is the most important. It is the leader of energy conservation, energy-saving indicators are often completed by design, and other measures can only play a supporting role. The current problem in China is precisely the lack of attention to energy conservation in the design of road lighting. The relevant standards have already been available, but the implementation is not enough.
The newly revised "Urban Road Lighting Design Standards" stipulates the power density limit of motor vehicle traffic road lighting. It is required to ensure that the actual energy consumption is lower than the standard limit when designing. It is only taken further in the actual operation and management of street lamps. Measures to reduce energy consumption as much as possible.
Nowadays, the management of road lighting is generally the street lamp management office or the lighting management office. These institutions often fail to manage the design process and take over the operation and management of the street lights only after the road is completed. Road lighting is often designed to increase energy consumption for human reasons. Sometimes even the words of the leadership department can't be too dark, and the design illumination is greatly improved. There are also quite a few street lamp design departments or technicians who have no design qualifications, and can choose lamps, lamps and lamps at random, so that they are seriously exceeded or fail to meet the standards.
In the final analysis, the key to the problem lies in the lack of review and supervision of energy lighting in China's road lighting design. When the road lighting project is accepted, only safety, fire protection and other issues are emphasized, and the control of the contrast is not strict.
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