The LED (semiconductor) lighting industry is currently the most energy-saving, environmentally-friendly, long-lived new technology industry, and is strongly attracting deep-sighted and large-scale investment in capturing the new industrial commanding heights.
When the reporter went to the Shenzhen Jinjijia Electronic Industry Co., Ltd. on-site inspection with the municipal government research team, it was learned that the company, which has been engaged in LED lighting product research and development for 6 years, has integrated and expanded the original LED business unit last month and decided to invest 100 million yuan. And operate a professional LED lighting company Jinjijia Century Optoelectronics Technology Co., Ltd., to make bigger and stronger green energy-saving LED lighting industry, to create a world-class LED lighting aircraft carrier-level enterprise, and strive to be listed as soon as possible, become a bright Shenzhen in the field of LED lighting business card.
Fill in the blank of LED high-power lighting
Founded in March 1999, Jinjijia Electronic Industry Co., Ltd. is a high-tech enterprise focusing on the research and development of digital consumer electronic products. In just 10 years, the company has formed a diversified product structure based on mobile digital LCD small color TV, car audio-visual products, building video intercom products, intelligent community system equipment, and high-power LED lighting products. At present, the products developed by Jinjijia have covered large and medium-sized cities in 34 provinces and autonomous regions, and exported to more than 80 countries and regions such as Western Europe, Eastern Europe, South America, Middle East and Southeast Asia, with annual sales of several hundred million yuan. Feng Shuixing, the founder and chairman of Jinjijia, who has been engaged in the manufacture of electronic products in Shenzhen since the 1980s, is also known as the father of small household appliances.
Feng Shuixing told reporters that as an early entry and development of LED application in Shenzhen, Jinjijia has formed three series of product layouts and successfully developed LEDs with a maximum of 150 watts while continuously solving the problems in the application field of LED lighting industry. Power high-tech lighting has filled a big gap in the domestic industry.
Apply for more than 40 patented technologies
It is reported that in terms of LED light source products, Jinjijia has successfully solved the problem of heat dissipation of LED lighting by making unremitting efforts to carry out technological innovation. The LED chip is packaged on super-thermally conductive silver-plated copper-platinum, successfully solving the high-power LED package. The two major problems of heat dissipation and multi-chip parallel technology are the first to realize the high-power LED bulbs of polycrystalline single LED package optical modules. At present, the company has successfully launched high-power LED bulbs from 5-150W wattage. In the development of LED power supply, Jinjijia has also developed LED driving power (transformer) that matches LED light source through long-term research and development and testing. It relies on its own brand of efficient and durable constant current transformer to truly make LED lamps energy-saving, environmentally friendly and long-lived. The lighting features become reality. The transformer developed by Jinjijia has obtained certifications such as EMC and CE for entering the European and American markets.
As of March this year, Jinjijia has applied for more than 40 patents in the field of LED lighting applications, of which nearly 10 have been authorized. Relying on independent patent technology, we have successfully solved the problem of LED heat conduction and heat dissipation, and formed 8 series and more than 200 LED products. Feng Weisheng, general manager of Jinjijia Century Optoelectronics, confidently introduced that various ministries and commissions in the country and Shenzhen have successively introduced various preferential policies to support the development of LED lighting industry. This brings new development to the future development of Jinjijia, which has mastered a large number of LED core technologies and independent intellectual property rights. Opportunity. According to another report, Jinjijia LED lighting fixtures have been widely used in highways (streets), subways, tunnels, mines, national defense, construction, commercial city night lighting, and many other areas, and occupy a certain market share of domestic and foreign lighting.
Sprinkle huge investment of 100 million yuan
The reporter was informed that Jinjijia LED lighting, which has reached the international advanced level of technology, has entered the United States, Canada, Spain, India and other countries in batches. Recently, the company has reached a cooperation agreement with the Brazilian purchasing group to promote LED lighting products in Brazil. In terms of domestic sales, Jinjijia has established a three-dimensional sales model of direct sales and multi-level agents, and has undertaken a large number of LED road lighting and home lighting projects. It has established cooperation projects with many provinces and cities such as Anhui and Hunan.
At present, Jinjijia Century Optoelectronics has initially formed an industrial chain integrating LED packaging, application research and development and production, LED lighting promotion and sales. Jinjijia LED lighting has been sold at home and abroad, and it has a certain share of the world LED lighting market. According to Feng Shuixing, in March of this year, Jinjijia once again invested heavily in the field of LED lighting. In the first and second phases, a total of 100 million yuan was invested to establish Jinjijia Century Optoelectronics Technology Co., Ltd., focusing on the R&D, production, sales and installation of LED lighting.
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For circuits operating at or above 2,000 volts between conductors, a conductive shield may surround each insulated conductor. This equalizes electrical stress on the cable insulation. This technique was patented by Martin Hochstadter in 1916; the shield is sometimes called a Hochstadter shield. The individual conductor shields of a cable are connected to earth ground at the ends of the cable, and at locations along the length if voltage rise during faults would be dangerous.
Cables for power distribution of 10 kV or higher may be insulated with oil and paper, and are run in a rigid steel pipe, semi-rigid aluminum or lead sheath. For higher voltages the oil may be kept under pressure to prevent formation of voids that would allow partial discharges within the cable insulation.
A high-voltage cable designed for 400 kV. The large conductor in the center carries the current, smaller conductors on the outside act as a shield to equalize the voltage stress in the thick polyethylene insulation layer.Modern high-voltage cables use polyethylene or other polymers, including XLPE for insulation. They require special techniques for jointing and terminating, see High-voltage cable.
Many multiconductor cables have a bare or insulated grounding or bonding wire which is for connection to earth ground. The grounding conductor connects equipment enclosures to ground for protection from electric shock.
Electrical power cables are often installed in raceways, including electrical conduit and cable trays, which may contain one or more conductors.
A hybrid cable can include conductors for control signals or may also include optical fibers for data.
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