As a new lighting product, LED light sources and lamps have become more and more popular in lighting engineering in recent years. However, due to the lack of relevant standards, there are many types of LED lighting products, but the quality is uneven.
Zheng Guoan, deputy secretary-general of the General Office of the Ministry of Science and Technology, pointed out that China has a huge lighting market and a solid lighting industry base. It is one of the world's largest producers and exporters of electric light sources and lighting appliances. The application of LED light source in road lighting has become a hot spot in the semiconductor lighting industry in recent years. At present, more than 100 companies have invested in the development of semiconductor street lamps at home and abroad, but they have not yet invested in mass production, except for the technology to be broken. The lack of product standards is one of the main factors restricting the large-scale application of LED street lamps. He hopes to promote the research and application of LED public lighting standards through the efforts of the government and industry.
There were 13 experts and scholars and more than 200 industry representatives from both sides of the strait participated in the seminar.
Medium Voltage Unarmored Cable
Medium voltage unarmored cable is a type of Power Cable used for transmitting electrical energy at voltages ranging from 8.7kV to 15kV. It is designed for use in various applications such as industrial, commercial, and residential buildings, as well as in outdoor environments.
Medium voltage unarmored cable is made up of a copper or aluminum conductor, an insulating layer, and an outer sheath. The conductor is usually stranded to allow for flexibility and to reduce the risk of breakage. The insulating layer is made of a material such as XLPE or EPR which provides excellent electrical insulation and resistance to heat and moisture.
The outer sheath is made of PVC or PE which provides protection against mechanical damage, moisture, and chemicals. Unarmored cables do not have any metallic armor or shielding, which makes them lighter and more flexible than armored cables.
Medium voltage unarmored cables are suitable for a wide range of applications including underground and overhead power transmission, distribution, and substation connections. They are also used in renewable energy systems such as wind and solar power plants.
In summary, medium voltage unarmored cables are a reliable and cost-effective solution for transmitting electrical energy over medium distances. They are designed to meet the highest standards of safety, quality, and performance, and are widely used in various industries and applications.
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