According to editors of Zhongzhao.com: It is true that LED street lamps are developing at a very fast speed and have great development potential. It is very likely to become a new product to replace traditional light sources in the future. In the context of the country's vigorous promotion of energy conservation and emission reduction, Nanjing, Suzhou, Chengdu and other major street lamps nationwide began to conduct test experiments specifically for LED street lamps a few years ago, making themselves a faster and healthier development of this product. Supporting power: Pay close attention to and keep abreast of the technological development level and market application of this industry, so that it can be promoted and applied when the technical performance, service life, maintenance cost, and cost performance are mature.
In recent years, the development of various new types of light sources has advanced by leaps and bounds, especially with the advancement of semiconductor production technology, high-power LED chips have gradually entered the field of lighting. Since 2006, we have been paying attention to the technical development of LED street lamps. Since then, we have been closely monitoring the development of this industry through various LED streetlight test experiments every year. Last year, we conducted another large-scale LED streetlight special experiment. The basic situation of the experiment is as follows (in view of the fact that the current development of this industry is very fast, this presentation only represents the end of the test product at the end of 2008). Technical level):
First, the experimental object
Before the experiment was officially launched, a large amount of product information was collected through various channels. Some of the information was also learned from some of the brothers who used LED street lamps, and finally 8 LED street lamp manufacturers were selected. Although it is not possible or impossible to cover all LED street lamp brands, the selected 8 should represent the advanced level of the current LED street lamp R&D and manufacturing industry. On average, each family purchased about 6 baht and a total of 52 street lamps.
The current LED street lights have many specifications, and do not form 400W, 250W, 150W and other power series like high pressure sodium lamps. According to the actual test, the power of various models of LED street lamp system in this experiment is between 106W and 188W, and the power of the light source is 71W to 170W.
Second, the purpose of the experiment
1. Verify the energy-saving effect: According to the measured efficiency of the LED street lamp, compare the efficiency of the high-pressure sodium lamp and verify its energy-saving effect. We believe that the fundamentals of energy conservation are to improve the efficiency of energy use. Therefore, the energy-saving effect of lighting products should be judged by the luminous efficiency.
2. Comparison with high-pressure sodium lamp: At present, the most used road lighting is high-pressure sodium lamp, which compares the light and electric parameter data of the tested LED street lamp with the high-pressure sodium lamp.
3. Analysis of economic benefits: As a user, an important purpose of energy conservation is to save money, but the transformation itself also requires a large amount of investment, the labor cost required for the transformation, the maintenance cost in the later period, and whether the investment can be recovered within the life cycle. The economic benefit analysis of this experiment is also one of the experimental purposes.
4. Feasibility conclusions for promotion and application: According to the above comparative analysis, the conclusions of the feasibility of the application of LED street lamps are obtained.
Third, the experimental content
This experiment is mainly for LED street lamps of 8 manufacturers and a set of high-pressure sodium lamp sets of international famous brands. From the actual use of many years, the price and technical level of the high-pressure sodium lamp lamps of this brand model are selected among the similar products. Upper level), the experimental content includes laboratory test, field test and other tests.
1. Laboratory test: Entrust professional institutions to test the light parameters such as voltage, current, active power, power factor, higher harmonics and other light parameters of the lamp and the light output of the lamp.
2. On-site test: The average illuminance and illuminance uniformity of the original high-pressure sodium lamp are measured in the experimental section; after the high-pressure sodium lamp is replaced by the LED street lamp, the average illuminance and illuminance uniformity of various brand lamps are measured.
3. Other tests: Every quarter, the organization staff will measure the spot illumination at the site, collect data, and summarize the law of LED road light decay. The maintenance personnel of the facility regularly inspect the experimental sections, find faults in the light source and electrical appliances, and count the failure rate of the LED streetlights.