On June 19, the reporter learned from the press conference held by the Provincial Economic and Information Committee that before the end of September this year, Shandong Province will promote 4.5 million energy-saving lamps in the province by means of financial subsidies, of which the number of rural areas will be 40. %the above.
Shandong Province attaches great importance to the promotion of high-efficiency lighting products. In 2008, the province promoted 4.2 million energy-saving lamps, accounting for 8.2% of the national promotion plan. According to reports, this year's 4.5 million energy-saving lamps promoted in Shandong Province will focus on the selection of lighting products, the use of large quantities of electronics, textiles and other industrial and mining enterprises and commercial schools, hospitals, government agencies and other large users, as well as promotion efficiency and easy Organized in large residential communities and rural areas.
The sales price will be calculated according to the bidding agreement supply price minus the financial subsidy fund. The resident user can purchase a 9-14 watt compact fluorescent lamp for a minimum of 2.85 yuan. The company responsible for promotion will also provide a large-scale user and resident users with a product quality commitment guarantee period of not less than one year and not less than two years.
In addition, in rural areas, Shandong Province will also create 1,000 high-efficiency lighting product promotion demonstration villages within two years, achieving more than 90% of the households in the village to apply high-efficiency lighting products, of which 500 demonstration villages will be completed this year.
Two - way trigger diode, also known as two - end ac device (DIAC), and two - way thyristor at the same time.Because of its simple structure and low price, it is often used to trigger the bidirectional thyristor, and can also constitute overvoltage protection circuits.Construction, symbol and equivalent circuit of a bidirectional trigger diode.
Also commonly used in the overvoltage protection, timing, shift equal circuit, Figure 2 is the overvoltage protection circuit composed of bidirectional trigger diode and bidirectional thyristor.When the transient voltage exceeds the DIAC and Ubo, the DIAC quickly conducts and triggers the bidirectional thyristor to also conduct, so that the following load is protected from overvoltage damage.
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