What is the Main Transformer Protection Action conditions

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Transformer High Voltage - China Manufacturer

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1) The main transformer and bushing Lead Fault.
  
    2) to protect the failure of the s econdary line.
  
    3) current transformers are open or shorted.

    4) The main transformer internal fault.

Unintentional omission or intentionally concealing the fresh Billiton shares prospectus errors and omissions frequent

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CO2 Gas Shielded Welding Wire - China Manufacturer

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Raise investment projects may be indigestion, high-tech enterprises actually piece together the voices of doubt, on March 16, Shenzhen City Jin extension Automation Equipment Co., Ltd. (hereinafter referred to as \"JT share s) IPO IPO application is passed. However, the reporter of the \"public securities\" survey interviews found that, in addition to the above question, JT shares prospectus is also suspected of concealing important information and critical data, even in the presence of the customer order reversed so that low-level error.

Customer order was reversed

JT shares the main business of the electronic machine installed R & D, production and sales of associated equipment. Prospectus 136, 2011, the Company to the Jeter Global Pte Ltd (hereinafter referred to as \"Jeter Global\"), Giken, Dongguan Xin Yang Electronics Co., Ltd., Tianjin Kui Bao Electronics Co., Ltd. (hereinafter referred to as \"Tianjin huge treasure \"), Xiamen the Hengda Yu Trade Co., Ltd. (hereinafter referred to as\" Xiamen the Hengda margin \") and Shenzhen City, Cape Joint Technology Co., Ltd. (hereinafter referred to Shenzhen Pulian\") five majo r customer sales of 7.5445 million yuan, 5.5972 million yuan. 519.66 million, 4.586 million yuan and 4.5914 million yuan, the proportion of the company had total sales of 2.84%, 2.11%, 1.96%, 1.73% and 1.73% respectively.

It is worth mentioning, from top 5 clients sales table, Xiamen Hengda margin, the fifth largest customer, but came in Shenzhen before the S & P joint, the fourth-largest customer. \"As the proportion of JT shares of total sales, two sales amount to Xiamen the Hengda margin, and Shenzhen General Union, are 1.73%, in such circumstances, both the order should be in accordance with the amount of sales, the stroke of the company name or Pinyin to arrange, whether it is an obvious error on the order in which, forms an investment banker, who in an interview with reporters, said: \"in this prospectus should be rigorous, and each data withstand the scrutiny of an error like this too low level. \"

Jeter global source?

If just a stupid mistake inadvertence, then on the company\\ s market share, key information such as first big customer, JT shares are not deliberately conceal?

In the prospectus, JT shares in order to express their position in the market, eight times before and after use the word \"leader\" to describe. Issuers as domestic electronic machine installed the associated equipment of the leading enterprises of the industry, Welding Supplies, occupy a larger share of the market has, however, \"large\" but no mention of how much strength Billiton shares. The SFC issued \"public offering of securities of companies the information disclosed in the Content and Format Standard No. 1 - the prospectus provisions of Article 43, the issuer shall disclose its competitive position in the industry, including the issuer\\ s market share , nearly three years of changes and future trends, and summary of the major comp etitors. JT shares in an issuer\\ s competitive position in the industry, said the company has developed into the leading enterprises in China\\ s electronic machine installed the the field of Welding Supplies According to the statistics of the China Electronic Production Equipment Industry Association, the company highest in the industry, \"the forefront of the domestic electronic machine installed Alliance Welding Supplies market share in 2010.\"

Should be noted that the SFC rules require changes in the past three years, and future trends \", JT shares but only disclosed in 2010, but no specific data, in the end is a weak awareness of information disclosure or deliberate to conceal? Prospectus 97 detail attracted the attention of reporters: \"The industry data cited in the prospectus released from the China Electronic Production Equipment Industry Association, the Chinese electronic machine installed associated equipment industry and future d evelopment trends report the report\\ s data reference database of the China Electronic Production Equipment Industry Association. \" In other words, the industry position of JT shares, and market share data can be found, but the company has not announced in the prospectus, but instead with the \"leading\", \"large\", \"the forefront\".

The industry position is just one of them, the disclosure of customer information, JT shares Cherishing such as gold. 2010 and 2011, Jeter Universal for two consecutive years to become the first big customer of JT shares. On the network, the reporter did not find any news about Jeter Global JT shares prospectus and did not make any introduction. Companies in China are basically limited liability and joint stock limited two, Jeter Global Pte Ltd from the name of point of view, should be registered outside the company. \"A senior industry source told reporters.

Speedy sleight of hand tricks

In addition to information the disclosure of alleged breach of the financial data of JT shares there are also traces of excessive packaging.

As of December 31, 2011, the JT shares aging in the list of major customers in the accounts receivable within one year, Speedy Electronics Shenzhen Co., Ltd. (\"Speedy\") and Tianjin Kui Bao, respectively 454.40 million and 425.60 million yuan in the first and second. The reporter noted that JT shares the full year 2011 total sales of 5.1966 million yuan in Tianjin huge treasure, that is, 5.1966 million yuan, 82% of credit sales. In addition, in 2011, JT shares, the Xiamen Hengda margin, the fifth largest customer, the sales amount of 4.586 million yuan, click here can be inferred, JT shares in 2011, Speedy\\ s sales amount should be less than 4.586 million yuan, while the In this one, actually 454.40 million in accounts receivable, JT shares in 2011 the sales of the company Speedy basically all c redit.

\"A lot of companies rushed results before listing a large number of credit sales and net profit will rise, but the cash flow it is difficult to \\ processing\\ .\" Who declined to name of Certified Public Accountants, told reporters: accounts receivable in the future is likely to turn sour, I remember the media reports, Squire Pharmaceuticals (30.200, -0.02, -0.07%) (300,199) listed soon, the company\\ s first big customer went bankrupt JT shares prospectus by the end of 2011, the company achieved operating income of 265.55 million yuan, an increase of 21.44%; net profit of 40.77 million yuan, an increase of 15.59%; 19.26 million yuan of net cash flow generated from operating activities down 36.75%.

Home decoration is suitable for pavement laminate flooring

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composite wood decking - China Manufacturer

Thank you for inquiry my composite wood decking, TEL:+86 575 82001678, E-MAIL:sales1@wpcflooring.com

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    The laminate flooring is ideal for home decoration. MDF, particleboard and other for the substrate, and both sides of the paste composite made by a certain temperature and pressure impregnated paper su rface is then covered with a layer of coating.
    The coating materials for melamine or aluminum oxide. The wear resistance of these two kinds of materials are more than ten times or even dozens of times in the solid wpc floor coating. In particular, aluminum oxide, raw materials for the manufacture of artificial gems, so the more excellent wear resistance.
    Moreover, the strengthening laminate flooring there are many fresh and know the advantages for consumers:
    - Laminate flooring and have a good impac t resistance and flame resistance. So that it can withstand high-heeled shoes to walk and furniture moving, friction, and can withstand the weight of heavy furniture, and can tolerate the burning of cigarettes, stains can be easily removed without the wax coating.
    - Strengthen the laminate flooring surface is decorated with a variety of species of grain, very realistic enough to visually and solid wood flooring.
   - MDF is pressed into the wood fiber, basically overcome the shortcomings of wood one-way same-sex, after the laying of the floor is not easy to deformation.
   - Laminate flooring using "floating" method laid without nails, to facilitate construction.
    The main measure to buy laminate wpc flooring surface abrasion revolutions, thickness swelling, surface impact resistance and formaldehyde emission:
    - Surface wear rpm under specified conditions, the instruments on the floor sample polished surface to surface damage when the number of revolutions. To enhance the decorative wood grain laminate flooring surface is artificial, laminate flooring, wpc wood texture, and has important value in use. When the grain is damaged, its value in use is greatly reduced, should be regarded as the termination of the actual service life. So common in the international sample assessment of the surface of wood damaged wear revolution that the initial wear value (IP) as an indicator to strengthen the wear resistance of composite floor. For home use, the initial wear value greater than 6000 rpm is enough.
    - The thickness swelling rate of laminate flooring at 25 ° C water immersion, water absorption of MDF after the expansion, so that the floor thickening, thickening of the thickness swelling. The greater the expansion, the intensity decreased after the damp floor greater surface bulge or even fall off phenomenon, and there will be a direct impact on the life of the floor. From the current understanding of the situation, different brands, its the thickness swelling can be a difference of more than ten times.
    - Surface impact resistance means using an established method of floor impact left a crater diameter the size of the unit is mm. Pits smaller the diameter of the samples the better impact resistance, the longer service life. Commercial laminate flooring surface thickness of 0.1 mm or more, up to 0.7 mm thick or 1 mm. The surface layer is thicker, the impact resistance will increase accordingly. This, in the time of purchase with the naked eye from the cross section observed out.
    - Formaldehyde emission is the amount contained in the laminate flooring using the glue residual formaldehyde is gradually released to the surrounding environment. Formaldehyde is a harmful gas, often in environments that contain high concentrations of formaldehyde have all kinds of discomfort, even carcinogenic. The formaldehyde emission units are mg / 100 g in the developed countries in Europe, the formaldehyde emi ssion does not exceed 10 mg / 100 g of laminate flooring are known as green flooring. In our country, because the current standards of this indicator set of 70 Hawk / 100 g, plus the formula unreasonable, glue, strict process control system board, so some brands of this indicator is higher. It is understood that the different brands, formaldehyde emission difference between the very low 3.7, high up to 84.9.
     In addition, the laminate flooring quality indicators as well as density, static bending strength, internal bond strength, moisture content, surface resistance to cigarette ignition.
    Of course, so many indicators, not to mention consumers, and even experts sometimes difficult to the naked eye alone to identify the quality of the pros and cons. So be sure to make more in the purchase inquiry, to understand and compare, or obtained from the sample to make some test. Percussion, such as a hard object to scratch the surfa ce, the thickness of the observed surface, try surface is easy to peel off, flooding, burning with cigarettes.
   Laminate flooring without special maintenance, but the need to avoid the use of wet mop to clean the floor, careless splash of water, should also promptly wipe dry, or medium density board water swelling can damage the floor. Laminate flooring generally damaged beyond repair.

The development trend of 32 belt conveyors

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bucket elevators - China Manufacturer

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 I want to print IE Favorites into the briefcase I Leave word
 
Source: China conveyor network Added by: admin Add time :2007-11-20 15:25:00
 
summary of

: analysis of the status quo and the development gap between the belt conveyor at home and abroad, especially the core technology of the large belt conveyor (belt conveyor dynamic analysis and monitoring techniques, controllable soft starting power equalization technology), equipment performance and reliability, life, and discusses the development trend of the belt conveyor technology. The
Keywords: belt conveyor; status quo; development trends
Drawing No.: TD528 Document code: A,

1 abroad, the status of the belt conveyor technology
foreign Belt Conveyor machine technology has developed rapidly, mainly in two aspects: one is the functional diversification of the belt conveyor, the magnification range of applications, such as high-angle belt conveyors, tubular belt conveyor, space turn belt conveyor other models; the other hand, the belt conveyor technology and equipment have a huge development, especially long-dista nce, large capacity, high belt speed and other large belt conveyor has become the main direction of development its core technology is developed and applied to the belt conveyor dynamic analysis and control technology to improve the performance and reliability of the belt conveyor. At present, the use of belt conveyors in the coal mine has been shown in Table 1 of the major technical indicators, the key technology and equipment has the following characteristics:
(1) equipment. Its main technical parameters and equipment toward the large-scale development to meet the needs of the high yield and efficiency of intensive production more than the annual output of 300 to 500 million tons.
(2) application of dynamic analysis techniques and mechatronics, computer monitoring and other high-tech, high-power soft-start and automatic tensioning, dynamic monitoring and control on the conveyor, and greatly reduces the dynamic tension of the conveyor belt, the device good operating performance, high transport efficiency.
(3) driver and intermediate driver and the power balance of the multi-conveyor running change to the technology, conveyor stand-alone run-length has been restricted, in theory, and to ensure that the conveyor system equipment versatility, interchangeability and its unit-driven reliability.
(4) new technology of the key components of high reliability. Such as containing CST, etc., including a variety of advanced high-power-driven devices and speeder, high life and high-speed roller, self-cleaning drum equipment, efficient storage with the device, rapid self-moving and tail. FSW production in the United Kingdom FSW1200 / (2 ~ 3) × 400 (600) face along the trough belt conveyor using a liquid adhesive differential or frequency control devices, the transport capacity of 3000 t / h, above the machine tail with the new loader (S500E) supporting the product ion, such as Joy, the Sui Face goes on automatically fast self-moving, less manual work, high production efficiency. The main technical indicators of the
Table 1 belt conveyor abroad
Tab.1 The main technical parameters of belt conveyer in overseas
abroad 300 to 500 million t / a high yield and efficiency mine
main parameters
crossheading telescopic belt conveyor roadway and inclined fixed belt conveyor

Transport distance

/ m, 2000 ~ 3000> 3000
belt speed / ms-1 3.5 ~ 4 4 ~ 5, up to 8
throughput / th-1 2500 3000 3000 4000
drive total power / (kW) 1200 ~ 2000 1500 ~ 3000, the largest up to 10100

Belt conveyor technology of

2 the domestic status quo
China\\ s manufacturing belt conveyor varieties, many types. During the Eighth Five-Year Plan \"period, through the implementation of the project countries through-train\" Nissan million tons of mining equipment, belt conveyor technical level has been greatly improved, coal mine with high-power, long-distance belt conveyor Lu development of key technologies and new products have made great progress. Long distance belt conveyor such as the inclination of complete sets of equipment, high production and high efficiency working face telescopic belt conveyor and so on to fill the domestic blank, and belt conveyor to reduce the key technology and its main components, a theoretical study and product development, successfully developed a variety of soft start and brake, and PLC as the core programmable electronic control device, the drive system with variable speed fluid couplings and planetary gear reducer. At present, China\\ s coal mine belt conveyor Main technical characteristics of indicators shown in Table 2. The main technical indicators of domestic belt conveyor
table
Tab.2 The main technical the parameters of the belt conveyer in China
main parameters crossheading telescopic belt conveyor roadway and inclined fixed belt conveyor
transport distance / m 2000 3000> 3000
belt speed / ms-1 3.5 ~ 4 4 ~ 5, up to 8
throughput / th-1 2500 ~ 3000 3000 ~~ 4000
drive power / (kW) 1200 ~ 2000 1500 ~ 3000, the largest to 10100

, 3 belt conveyor technology at home and abroad the gap
3.1 Large Belt lies at the heart of technical the gap
(1) belt conveyor dynamic analysis and monitoring technology over long distances, the key technology of high-power belt conveyor is a dynamic design and monitoring, which is the core technology to restrict the development of large belt conveyor. China rigidity theory to analyze the study belt conveyor and the development of calculation methods and design specifications, design a high security system (n = 10 or so) on the conveyor belt, with the actual situation is far different. The conveyor belt is in fact a viscoelastic body, long distance belt conveyor belt drive device from the dynamic response of the braking force is a very complex process, rigid body mechanics can not simply be explained and calculations. Belt Conveyor Dynamic design and applicat ion software has been developed for dynamic analysis and dynamic monitoring of the dynamic tension of the conveyor on a large conveyor, reducing the safety belt system, greatly extend the service life to ensure that the conveyor is running reliable so large belt conveyor, designed to reach the highest level (conveyor belt safety factor, n = 5 ~ 6), and conveyor equipment costs, especially in conveyer belt cost is greatly reduced.
(2) reliable and controllable soft-start technology and power balancing technology long distance and large capacity belt conveyor power from the long and multi-motor drive, soft start to reduce the dynamic tension of delivery mechanisms, especially motor drive. In order to reduce the impact on power soft start should be a time-sharing slow start; also control the conveyor starting acceleration 0.1 m/s2 0.3, to solve the carrier tape drive with the belt speed synchronization and conveyor surge phenom enon, reduce the impact of the component parts. The error due to manufacturing errors and motor characteristics, the power of the driving point is not balanced, once a motor power is too large will cause burning motor accident, therefore, the balance of power between the motor should be controlled, and to improve the accuracy of balance. The country has a large number of application of variable speed fluid coupling to to conveyors soft start and power balance, and solve the problem of long distance belt conveyor start with the power balance and synchronization. Regulation accuracy and reliability with foreign countries still lags far behind. In addition, long-distance high-power belt conveyor in addition to a coal belt speed, and also need an inspection with the belt speed, variable speed fluid coupling with soft-start and power balance, but also need to develop suitable long-distance stepless hydraulic speed control device. When the stand-alone power> 500 kW, the soft st arter controlled CST to demonstrate its superiority. Controlled soft starter is within the ring gear of the planetary gear reducer with wet friction clutch combination (ie, viscous transmission). Through the proportional valve and control system to achieve a soft start and power balance, regulation accuracy up to 98%. But very expensive in urgent need of localization. Belt conveyor performance and parameters of the gap
China on
3.2 technical performance can not meet the needs of the high yield and efficient mine, in particular, is key to smooth groove telescopic belt conveyor components and their functions, such as self-moving tail, and efficient storage belt and the tensioning device and other foreign countries has a big gap.
(1) Installed power in China face crossheading telescopic belt conveyor installed power of the 4 × 250 kW foreign products up to 4 × 970 kW, the domestic belt conveyor installed power of about 30% of the foreign product s ~ 40% of the installed power of the fixed belt a difference of greater. Transport capacity of the
(2) of belt conveyor maximum volume for 3000 t / h, abroad reached 5500 t / h.
(3) China\\ s belt conveyor of the conveyor belt width 1400 mm, abroad as 1830 mm. The
(4) with a speed limit because of the fiduciary roller speed, China\\ s belt conveyor belt speed of 4 m / s, the foreign 5m / s or more.
(5) working face, the transport length of China\\ s 3,000 m and abroad for the 7300m.
(6) shift the tail with the efficiency face emerging crossheading telescopic belt conveyor tail with the rapid advance of the face and quickly self-moving. The country since the tail shift is mainly dependent on imports, mainly of two kinds: (a) together with the loader to move the production by British LONGWALL company self-shift tail device. (B) Germany\\ s DBT self-shift tail device. The former is only one propulsion cylinders, the latter two promote the fue l tank. LONGWALL company\\ s claim to the tail for domestic bandwidth of 1.2 m on the conveyor, the drawback is that since the amount of shift the deviation of the tail conveyor is too small, correcting the weak, poor rigidity. German production of self-moving tail effect in the domestic than the former, horizontal, 2 vertical direction are of offset fuel tank, and correcting capability. Therefore, the former needs to be perfect, which is required to develop. However, self-moving tail, it is necessary to meet the non-slip the conveyor normal work requirements, but also to meet the rapid self-moving conveyor downtime.
(7) efficient storage-based tight belt tensioning device our enclosed storage with the structure and winch red tensioning the car is easy to derail, the conveyor belt is easy to deviation roller car is not self-moving conveyor belt stretching, required manual goes on, the maintenance of trouble. Foreign structure advanced open storage with devices and hig h-precision, high-torque trip of automatic tensioning equipment, roller car in place with the conveyor belt stretching. The conveyor belt deviation, does not derail the phenomenon. Varieties models of
(8) conveyors, fewer species, single function, the use of limited scope, can not give full play to its performance, such as the expansion of transport, haul or two-way transportation, so that the use of a machine; In addition, China\\ s coal mines geological conditions vary widely, often there will be some special requirements on the layout of the transport system, such as bending, large inclination angle (> +25 °) until the vertical lifting, should develop a special type of special kinds of belt conveyor. 3.3
reliability, life expectancy gap
(1) conveyor belt tensile strength of the fabric of China\\ s production of flame retardant conveyor belt is up to 2500 N / mm abroad for 3150 N / mm. The wire rope core flame-retardant conveyor belt up to 4000 N / mm, and abroad for 7000 N / mm. The conveyor belt joint strength of
(2) China\\ s conveyor belt joint strength of 50% to 65% of the mastering, mastering the 70% to 75% foreign.
(3) care roll life of the existing roller technology with foreign, short life, low speed, resistance, while the United States using the new oiling roller, running resistance, bearing with thin oil lubrication, which greatly improve the service life of the roller, and can be applied as a high-speed roller belt conveyor, using a wide and significant economic benefits. Of conveyor idler life of 20,000 h, the foreign roller life of 5 to 90 000 h only 30% to 40% of the foreign products, domestic roller life.
(4) conveyor speed reducer life in China conveyor reducer life of 20,000 h, the foreign reducer life of 70,000 hours. Belt conveyor running up and down
(5) reliability is poor (1) of the gap
on
3 .4 control system driven approach in China for the variable speed fluid coupling and Hardened reducer, foreign transmission forms, such as BOSS system, CST controllable drive system, high control accuracy.
(2) monitoring devices and foreign conveyor has high-grade programmable logic controller PLC, the development of advanced program soft Bo and integrated power relay control and data believed, processing, storage, transmission, fault diagnosis and query complete automatic monitoring system. China conveyor using only mid-range programmable logic controller to control the start of the conveyor, the process of normal operation, shutdown, etc.. And controllable Kai (system) device used in conjunction to achieve controllable Kai (system) to move with speed synchronization, power balance and other functions, but not near the device, fault diagnosis and queries. Abroad belt conveyor in addition
(3) conveyor protection device installed to prevent the belt running side slipping, tearing overfill clogged sprinkler dust suppression and other protection devices, in recent years has developed a lot of new monitoring devices: drive pulley. change to the temperature monitoring system of rollers and roller group; smoke alarms and automatic fire extinguishing installations; fibers woven conveyor belt vertical tear and joint monitoring system; proof electronic belt scale automatic metering system. These new protection system in China is basically in the blank. China\\ s current skid, the pile of coal, Coal Chute warehouse full of protection, anti-deviation, over-temperature sprinklers, smoke alarm device reliability, sensitivity, life expectancy low. The
coal mine belt development trend
the 4.1 equipment, large-scale, to improve transport capacity
in order to meet the needs of the high yield and efficiency of intensive production, the transmission capacity of the belt conveyor should increase. Long distance, high belt speed, l arge capacity, high power is the inevitable trend of development in the future direction of development of high yield and efficient mine transport technologies. 10a in the future throughput to 3000 to 4000 t / h, speed increased to 4 to 6m / s, the transmission length for scalable belt conveyor to reach 3000m. For the steel cord belt conveyor to be lengthened to more than 5000m, stand-alone drive power requirements of the 1000 ~ 1500 kW conveyor belt tensile strength of 6000 N / mm (steel core) and 2500 N / mm (steel core ). In particular, the coal mine along the slot scalable delivery technology development, with the emergence of efficiency face and coal technology continues to develop, the original telescopic belt conveyor, whether it is the main parameter or operating performance are difficult to adapt to the high yield efficient face the requirements of the mine site more urgent need of the main parameters, the technology is more advanced, more reliable performance and l ong-distance, large capacity, high-power along the slot can be telescopic belt conveyor, in order to improve our belt conveyor technology level, to fill the gaps, close and catch up with international advanced technical level of industrial countries. Contains seven key technologies: (1) belt conveyor dynamic analysis and monitoring techniques; (2) soft-start technology and the power balance; (3) the middle of drive technology; (4) automatic tensioning technology; â'¸ new life of high-speed roller; (6) fast Since the shift of the tail technologies; (7) efficient storage with technology.
4.2 to improve performance and reliability of the component parts
equipment operation rate of the high and low depending on the performance and reliability of the component parts. In addition to further improve and enhance the performance and reliability of existing components, but also continue to research and development of new technologies and components, such as high-performa nce controllable soft start technology, dynamic analysis and monitoring technologies, efficient storage with devices, rapid self- shift of the tail, high-speed roller, so that the performance of the belt conveyor can be further raised.
4.3 expand function, use of a machine of
expand the functionality of transport, haul or two-way transportation, so that the use of a machine, making it the most economical. Development of special-type belt conveyor, such as curved belt conveyor, dip or vertical lift conveyor.
 

Development and Reform Commission: will be LED lights to provide strong scientific support for

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led down lights - China Manufacturer

Thank you for inquiry my led down lights, Tel: 86-577-62608819, E-MAIL:swinled@yahoo.com

http://www.swinled.com/led-down-lights/

It is reported that until 2010, China\\ s \"973 Program\", \"863\" Project, the major national science and technology projects, the National Natural Science Foundation of Science and Technology program in the field of LED lighting, new energy, new materials, b iological resources and environment were focus on the deployment to provide strong scientific and technological support for industrial development.

To actively cultivate the market, our organizations have implemented energy-saving Huimin, 10000 10 City 10 City, one thousand, Golden Sun, a major demonstration project, the promotion of energy-saving air-conditioning for more than 30 million units, more than 360 million energy-efficient cars, energy efficient motor 400 more than one million kilowatts, 160 million energy-saving lamps, more than 1.6 million LED lights, the pilot run various types of electric vehicles, 14000 343, the construction of photovoltaic power generation project.

Last year approved the release of more than 90 national standards for the field of strategic emerging industries. Among them, electric vehicles, triple play, Internet of Things, LED lighting and other standards have been the standardization pilot

 

The development of the price of LED lights to the direction of civilians

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led spotlight - China Manufacturer

Thank you for inquiry my led spotlight, Tel: 86-577-62608819, E-MAIL:swinled@yahoo.com

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In related news, it is estimated that one hundred million 2011 LED chip supply by about 1,000, while the chip demand is about 89 billion, the oversupply ratio of 12%; 2012 in mainland China production capacity of the release of a large number of expected ove rsupply ratio will be expanded to 21%.

Although the chip supply, but the status of each product line, strong demand for ultra-high brightness LED, and less able to supply vendors, so the supply and demand is fairly stable. Mainland China, although out of production capacity, but mainly in the low-level application projects, such as indoor display, flashlight, fluorescent, and other products.

Compared with conventional light sources, LED lights than the energy-saving lamp energy saving of 80%. A spherical 5-watt home led light bulbs, you can replace a 11 watt energy saving lamps, a 90-watt LED street lighting effect is equivalent to a 250-watt high pressure sodium lamp. Subject to the needs of the process, energy-saving lamp tubes containing heavy metals like mercury, once the tube is damaged, mercury into the environment, the environment and cause harm to humans. LED lights unlike the energy-saving lamps and mercury pollution, does not pollute the soil and groundwater, in line with the concept of energy saving and environmental protection.

The LED light source has the advantages of long life, 25,000 hours, the light fades, the brightness can still reach the traditional light efficiency of the new lamp. And household LED lamps flicker, no radiation, lead-free, mercury-free. LED lighting to open civilian market, the biggest obstacle is that it is higher than the people at affordable prices.

The biggest challenge in the current popularity of LED lighting is the price pressure, followed by units of lumens per watt. From the chip to all aspects of the package, you must take a variety of measures, such as adding a red crystalline powder, and the development of high-voltage LED, in order to achieve the purpose of reducing costs. Predicted that high-voltage LED will gradually become the mainstream market, 75W and 100W lighting alternatives will also be center stage. Has been hampered by the LED lighting products into the price of the general lighting field, is expected to be resolved within the next five years.

China developed the world s leading level of maximum power LED light source

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128â…¹64 lcd module - China Manufacturer

Thank you for inquiry my 128ⅹ64 lcd module, Tel： +86-571- 85121224, E-MAIL：sales@tsingtek.com

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15, the cross-strait LED forum was held in Xiamen by National Semiconductor light emitting devices (LED) applications of Quality Supervision, Inspection and Testing Center, China has developed in the input current o f 20mA, the COB packaging mode up to 177 lumens / watt LED light source , marking the LED light source technology research and development has reached world advanced level.

According to reports, this world-leading level of the LED light source used the Hercynian Research Institute, Chinese Academy of Sciences and the Fujian Province IMC Optoelectronics Technology Co., Ltd. R & D MCOB package technology with independent intellectual property rights, high luminous efficiency of the three safety photoelectric Co., Ltd. Preparation chips and Preparation of Sichuan Sony light and efficient phosphor.

Peng Wanhua, secretary general of the Fujian optoelectronic industry associations, said that the success of R & D 177 lm / W LED light source has an important significance. "This means that China s packaging technology, chips and raw materials to reach the world advanced level. If the technology is used in lighting will greatly enhance the energy saving effect, the industry is conducive to better promote the industry upgrade." He Wenming said, IMC chairman, LED technology is evolving, higher luminous efficiency of LED light source is still further research and development.