External Cable Assembly Wire:It is used to transmit data, audio, video, etc. it is a kind of electric energy or signal transmission device, which is usually composed of several wires or groups of wires.
External cable assembly line: used for connection, conduction, current and signal transmission of machine equipment, instrument, electronic and electrical peripheral equipment
External Cable Assembly Wire:It is used to transmit data, audio, video, etc. it is a kind of electric energy or signal transmission device, which is usually composed of several wires or groups of wires.
External cable assembly line: used for connection, conduction, current and signal transmission of machine equipment, instrument, electronic and electrical peripheral equipment
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On the evening of September 23, Shanghai held “Energy Shortage Experience†activities with cities such as Beijing, Shenzhen and Harbin, and simultaneously extinguished the iconic landscape lighting for half an hour from 20:00 to 20:30 – according to the news on September 24th. The Morning Post reported that at around 20:00 on the 23rd, nearly 100 landmark buildings on the banks of the Huangpu River, such as the Oriental Pearl Tower, the International Convention Center, the Bund Customs House, and the Shanghai Pudong Bank Building, extinguished all the landscape lights, and the city that shines a second ago. The central landscape was instantly plunged into the darkness. Only the sightseeing boat on the Huangpu River became the only bright spot; according to the same day, the Beijing News reported that “10, 9, 8 and 7...†with the countdown, Beijing The outdoor billboards in the major shopping malls of Wangfujing Street were all closed, and people on the pedestrian street spent half an hour in the dark.
This is another energy-saving activity carried out in various places after the car-free day.
Many years ago, many cities were dark in the night and were accused of not being modern enough. As a result, some cities have successively started the urban lighting project, and the effect is really good. As a result, some cities are keen to build a “no-night city†and think that the brighter the city, the better. A leader of a city once said: "The modern city should be a bright night city, a 24-hour service hotel, a restaurant... otherwise it can only be said to be a town, not a city." Under the guidance of this idea, some cities The building is covered with light lines, and the whole night is bright; the square is lit at night, like a white light; on both sides of the street, in front of the mall, neon cascading. Especially on holidays, the brilliant lights are on the upper floor.
But the problem now is that the lighting of some cities has gone to extremes, causing light pollution, affecting people's lives, causing huge waste, and may not enhance the charm of the city.
“Since a city has historical brilliance, it is no longer necessary to use lights to create brightnessâ€â€”sometimes, it reflects the modest dullness of solemnity, simplicity, quietness and elegance, but it will make people feel more comfortable. This makes people think of Paris, France. Anyone who has been to the city will feel that the night in Paris is not bright, and there are not many flashing neon lights. This not only does not affect the image of Paris in people, but also sets off Out of the historical sense of Paris.
As the pace of urban development accelerates, so does the demand for energy. In 2003, the phenomenon of “electricity shortage†occurred in a large area, which caused many cities to “bring power cutsâ€. At present, urban lighting accounts for a considerable portion of the city's electricity consumption. If the lighting of the national city can be controlled, then the savings will be a considerable number.
In 2005, in order to maximize energy conservation and ensure residents' peak summer electricity consumption, Beijing has introduced five measures for street lighting and energy saving. Consider turning off some night lighting, only “midnight light†(after 24 pm, The streetlights on 300 roads in the 8th district of Beijing City changed from double-lamp lighting to single-lamp lighting, and double-row lighting to single-row lighting. One measure can save more than 4.4 million kWh per year. In 2006, Wuhan City imposed restrictions on the electricity consumption of “No Night City†and pulled several electric gates. The electricity cost saved in one night was as high as 50,000 yuan. This time in Shanghai, a few lights in the landscape for half an hour saved about 1400 degrees, and Beijing Wangfujing turned off the lights for 30 minutes to save 1500 degrees. It can be seen that we have great potential in energy conservation.
Although this “light-off experience†is only attended by several cities, it conveys a concept of saving and has positive significance.
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