China's low-voltage electrical appliance industry has experienced the “12th Five-Year†start in a difficult economic situation, the international economic environment is complex and changeable, the price of main raw materials for low-voltage electrical appliances has continued to rise and labor costs have risen rapidly. Year of the year.
With the joint efforts of numerous entrepreneurs, various corporate management teams and employees of the entire industry, China's low-voltage electrical industry has achieved new developments last year. The output of low-voltage electrical products in the industry will increase by about 10%; the total output value of low-voltage electrical appliances will increase by about 15%. China's low-voltage electrical appliance industry in Changshu, Zhengtai, Shanghai people, Delixi represented a group of outstanding companies continue to be in rapid growth and development. Among them, the sales growth rate of some outstanding enterprises such as Zhengtai, Suzhou Fattai, Shanghai Liangxin, Wuxi Xinhongtai, Changzhou Xinluokai and Kailong remained at around 30%.
However, as raw material costs, labor costs, and financial costs continue to rise, and the price competition for low-voltage electrical products continues, the overall profit growth rate of the low-voltage electrical industry is declining. Many excellent companies, including Changshu Switch Manufacturing (limited) companies, can hardly change this trend. Of course, the overall profit level of these outstanding companies is still at the leading level in the industry. In such a big situation, there are still a few excellent companies that maintain rapid growth in profits. The growth of companies such as Zhengtai, Suzhou Fattai, Shanghai Liangxin, Wuxi Xinhongtai and Changzhou Luokai remains at 20%-30%.
Opportunities and Challenges Faced by China's Low-Voltage Electrical Appliance Industry In 2012, the situation faced by the low-voltage electrical appliance industry in China is still the coexistence of opportunities and challenges. From the overall situation, the opportunities are greater than the challenges.
Industry Development Opportunities 1. China's sustained development of the economy is conducive to the development of the low-voltage electrical industry The average GDP growth rate for the “Twelfth Five-Year Plan†in China will be 7%. In 2015, China’s total GDP will exceed 55 trillion Yuan. At the same time, under the backdrop of the grand development goals set forth in the “Twelfth Five-Year Plan†and the sustained growth of the macro economy, fixed-asset investment, industrial production, and overall consumption, especially the rapid growth of urban population, will inevitably boost power generation and electricity consumption. growth of. Therefore, the future market for low-voltage electrical appliances will continue to expand.
2. The innovation drive and transformation and upgrading proposed in the “Twelfth Five-Year Plan†are conducive to upgrade the low-voltage electrical industry The “Twelfth Five-Year Plan†clearly calls for strengthening the transformation of economic development mode and promoting technological innovation.
In the construction of smart grids, the State Grid Corporation of China and many design departments are more inclined to foreign famous brands, coupled with the domestic monopoly industry directly involved in the manufacture of low-voltage electrical appliances, so that existing domestic enterprises, including outstanding enterprises, are at a disadvantage in market competition.
4. There are many low-voltage electrical appliance manufacturers, counterfeiting and price competition still exist, so that the general low-voltage electrical products have been in a meager state. The profits of products such as DW45 universal circuit breakers that had previously played a major role in the development of the low-voltage electrical appliance industry have also dropped significantly.
5. Difficulties brought about by changes in the R&D mode of low-voltage electrical appliances.
With the continuous development of the market economy, the pattern led by the Institute to jointly design new products for the entire industry has been completely broken. Followed by the independent research and development of new products. This caused the internal and external attachments of low-voltage electrical appliances, and the trial production of major component manufacturers. The trial production cost increased significantly, and the production volume of each accessory or component was reduced, it was difficult to form a production scale, and it was difficult to generate profits. The low enthusiasm of the accessory manufacturers also brings difficulties to the whole plant to develop new products.
"Twelfth Five-Year" China's overall development trend of low-voltage electrical appliances 1, the development of personalized, with independent property rights products have become the preferred choice for most companies, each company should be based on the positioning of enterprises to determine 2 to 3 levels of products to meet different levels of market demand.
2. Excellent companies are considering and developing a new generation of low-voltage electrical appliances that are suitable for the characteristics of their own businesses. As a low-voltage electrical appliance industry, a new generation of low-voltage electrical appliances should have the following basic conditions.
(1) Breakthroughs or major innovations in the application of new technologies, new processes, and new materials (2) Significant innovation in product structure (3) Significant improvement and expansion in product performance and functions (4) Breakthrough in R&D and design methods (5) The product manufacturing process and equipment are greatly improved. For those enterprises that do not have the above-mentioned conditions for product development, they can improve and perfect the company's new generation products based on the existing third-generation products.
3. The first batch of four series of next-generation products developed by Shanghai Electronics Group and 8 outstanding companies in the industry will be gradually introduced to the market from next year. The low-voltage electrical appliance market will be re-divided:
(1) The first-generation products will be basically or completely eliminated in the “Twelfth Five-Year Plan†(2) The second-generation products will become low-end products in the low-voltage electrical appliance market and gradually exit the market (3) The third-generation products will become the market leader in low-voltage electrical appliances Products (4) The new generation of products will become the high-end products and development direction of the low-voltage electrical appliance market. 4. To cope with the promotion of the new-generation product market and enhance the competitiveness of the enterprise's market, a new generation of cost-effective, compact, low-cost, popular standard products have caused Everyone is concerned that the characteristics of such products should meet the following requirements.
(1) Appropriately reduce the performance index, can meet the requirement of about 70% use occasion.
(2) The product has complete basic functions and high reliability.
(3) Product miniaturization and low cost.
5, low-voltage electrical system integration and overall solutions have caused more and more companies to pay attention to, a company in the system integration and overall program one step ahead, it is possible to step by step in the market competition. To this end, in-depth studies should be conducted in the following areas.
(1) Typical schemes of low-voltage power distribution systems and the selection of various types of low-voltage circuit breakers and coordination of performance studies.
(2) Research on low-voltage power distribution and control network system: Including the network system, the overall system solution, various types of communicable low-voltage electrical appliances and other supporting components, and their coordination and cooperation.
(3) The overall solution of the over-current protection of the power distribution system aims to achieve full-scale, full-current selective protection in a very short time. (4) The overall solution for over-voltage protection of power distribution systems (including new energy systems).
(5) All kinds of motor start-up, control and protection of the overall solution (6) dual power supply system ATSE use the overall solution 6, new generation of product development must be with intelligent, networked functions, not only with a variety of fieldbus systems Seam connection, also directly connected to industrial Ethernet. The intelligent function should be expanded continuously, and the electrical distribution appliance and the control appliance appear to cross each other, namely the integrated intelligence function, in order to meet the need of the smart grid better. Such as smart grid ACB is no longer a single protection of electrical appliances, but will test, inspection, control, security, management and integration of the five major functions of integrated, multi-functional switch electrical equipment.
The mass production of medium- and low-grade products in the low-voltage electrical appliance industry in China consumes a lot of raw materials, consumes a lot of energy, and also brings high emissions, which is not conducive to the development of a low-carbon economy. Without transformation, it will face the dual constraints of resources and the environment. The third-generation improved products and fourth-generation low-voltage electric appliances that some excellent companies are developing in recent years will meet the requirements of high performance, high reliability, intelligence, and networking, and meet the requirements for miniaturization, low energy consumption, and environmental protection. Low-voltage electrical product design, research and development has shifted from imitation design to independent innovation design.
3. The development of China's power industry will continue to promote the development of the low-voltage electrical industry. In recent years, China's annual capacity for power generation equipment has surpassed the total installed capacity of power generation equipment in the United Kingdom and Germany. However, according to the analysis of per capita electricity consumption, China is still at a low level. In 2010, China's per capita electricity consumption was quite comparable to that of the United States in the 1950s, Britain in the 1960s, and Japan in the 1970s. Therefore, in the long run, there will not be surplus power generation in our country, but there is still huge room for development.
During the 12th Five-Year Plan period, the electricity consumption of the whole society is expected to grow at an average annual rate of 8.5%, and in 2015 it will reach 6.27 trillion kWh. The total power investment in the country will increase by 68% over the “Eleventh Five-Year Plan†to 5.3 trillion yuan, of which the investment in power distribution equipment will be nearly 1 trillion yuan, and the installed capacity of power generation equipment in the country will increase by an average of 9.34% annually. The 11th Five-Year Plan's new capacity has doubled.
With the continuous increase in power equipment, the market for low-voltage electrical appliances and complete sets of equipment will continue to grow, which is self-evident. The demand for replacement of old products will increase by 15-20% as a decade ago.
4. The comprehensive construction of the smart grid will accelerate the transformation and upgrade of the low-voltage electrical appliance industry. The period between 2011 and 2020 will be the major period of China's smart grid construction. The total investment of the smart grid is expected to be close to 4 trillion yuan. At present, the smart grid has entered an important stage of comprehensive construction. The intelligent construction of urban and rural distribution networks will be fully opened. Smart grids and smart complete sets of equipment, intelligent power distribution and control systems will usher in a golden period of development. At the same time, it will accelerate the upgrading of low-voltage electrical products in China and re-divided the low-voltage electrical market. This will certainly be a “gospel†for manufacturing companies with third-generation improvements and fourth-generation low-voltage electrical R&D capabilities.
5. The new round of rural power grid transformation will bring new development opportunities to low-voltage electrical enterprises. In January 2011, the country decided to implement a new round of rural power grid transformation and upgrading projects. During the "12th Five-Year Plan" period, the country's rural power grids will generally be transformed. Basically build a new type of rural power grid that is safe, reliable, energy-saving, environmental-friendly, technologically advanced, and standardized.
It is expected that there will be 500 billion yuan in the country's new round of rural power grid reconstruction project that will be more than a decade old. It is expected that this rural network transformation will bring an explosive increase in the low-voltage electrical market. Many experts did not forget that during the Ninth Five-Year Plan period, the low-voltage electrical products in the transformation of rural power grids over-emphasized the price of the products, resulting in a large number of low-grade low-voltage electrical appliances with poor performance and were used in rural power grids. It brings many hidden dangers to the safe and reliable operation of rural power grids. The transformation of rural power grids must emphasize the quality of electrical and equipment products, product performance and product reliability.
6, a new generation of low-voltage electrical appliances will soon be put on the market will inevitably lead the industry transformation upgrade China's new generation of low-voltage electrical appliances first emphasizes independent innovation, completely out of the imitation-based research and development model. To this end, it is proposed that new generation products should have major breakthroughs in the application of new technologies, and there should be major innovations in the structure of new products, and the performance and function of new products should be significantly improved. At the same time, it should be able to fully meet the development requirements of the smart grid distribution system, while emphasizing green, environmental protection and high reliability. Therefore, low-voltage electrical appliance manufacturers that do not have the ability to innovate, product design technology, and manufacturing capabilities and equipment will face phase-out in the industry reshuffle, and have third-generation and fourth-generation middle-to-high-end low-voltage electrical products that have their own innovation capabilities. Enterprises with advanced manufacturing equipment will further differentiate themselves in the market competition, and the low-voltage electrical appliance industry and product concentration may further increase.
7. New over-current protection technology has gradually caused power systems and power consumers to pay more attention to over-current protection. New technologies will gradually attract the attention of power systems and power consumers after new-generation products are put on the market. It will fundamentally change the selection concept of low-voltage circuit breakers. At present, although China's low-voltage distribution systems and low-voltage electrical appliances have selective protection, selective protection is incomplete. A new generation of low-voltage circuit breakers proposes the concept of full-current, full-range selective protection (referred to as fully selective protection). It will completely change the overcurrent selective protection of the existing distribution system, which is limited to the short-circuit current setting range of the circuit breaker. If it exceeds this current, it may lose selective protection. In addition, the existing terminal distribution system does not have a selective protection function because the main switches are current-limiting switches. Therefore, in the strict sense, the current terminal distribution system of buildings, especially the tens of thousands of households, does not have selective protection. A new generation of universal circuit breakers implements Icu=Ics=Icw with a zone interlocking module. A new generation of MCCBs with partial current limiting selective protection with regional interlocking modules and the selective protection of small circuit breakers SMCB was born, creating the necessary conditions for fully selective protection of the distribution system. It will be a major breakthrough in over-current protection technology for low-voltage power distribution systems in China. Has far-reaching economic and social benefits.
8. The outstanding domestic companies continuously pay attention to, follow and surpass the foreign company's products. Foreign famous low-voltage electrical appliance manufacturers have continuously introduced new products and their marketing in recent years. To a certain extent, they “encourage†outstanding domestic companies to pay close attention, keep up, and surpass. Foreign company products, otherwise they will lose competitiveness in the market.
Challenges faced by the industry 1. The research and new product R&D investment in the low-voltage electrical industry is obviously insufficient, which hinders the sustainable development of the low-voltage electrical industry.
Low-voltage electrical products span multiple disciplines and are comprehensive and technology-intensive. With the development of related technologies, related new materials, and new technologies, a new generation of low-voltage electrical appliances will be born, but a large amount of investment is still needed. According to statistics, outstanding foreign companies can achieve total sales of about 7% in the research and R&D investment of low-voltage electrical products. China's average investment in the low-voltage electrical industry is 1-2% of total sales, and excellent companies are about 3%.
Under the background of the continuous development of new technologies and new products for low-voltage electrical appliances and the increasing attention paid to the development of smart grid and safe use of electricity, if the low-voltage electrical industry in China does not increase investment in research and new product R&D, and does not increase research on basic generic technologies, the Improving the ability of independent innovation of enterprises will inevitably hinder the sustainable development of China's low-voltage electrical industry, and lose its market competitiveness.
2. The rising trend of manufacturing costs of low-voltage electrical appliances is irreversible. In low-voltage electrical appliances in China, low-grade products are still produced in large quantities. This batch of products is bulky and consumes a large amount of precious metal silver and copper, ferrous metals, plastics and other materials. Many materials are subject to international market prices. Therefore, the situation in which the prices of main raw materials of low-voltage electrical appliances remain high and even continue to rise will hardly change.
In addition, with the shortage of funds, rising financial costs, and the rapid increase in the wages of employees, the increase in personnel costs cannot be reversed. It will surely cause the profit of low-voltage electrical appliances to keep falling. Many companies are already in a state of low profit and loss. At the same time, the company has increased scientific research, and new product R&D and technical investment have brought difficulties.
3, the impact of foreign famous brands and the domestic monopoly industry to join the domestic low-voltage electrical outstanding enterprises worse.
With the joint efforts of numerous entrepreneurs, various corporate management teams and employees of the entire industry, China's low-voltage electrical industry has achieved new developments last year. The output of low-voltage electrical products in the industry will increase by about 10%; the total output value of low-voltage electrical appliances will increase by about 15%. China's low-voltage electrical appliance industry in Changshu, Zhengtai, Shanghai people, Delixi represented a group of outstanding companies continue to be in rapid growth and development. Among them, the sales growth rate of some outstanding enterprises such as Zhengtai, Suzhou Fattai, Shanghai Liangxin, Wuxi Xinhongtai, Changzhou Xinluokai and Kailong remained at around 30%.
However, as raw material costs, labor costs, and financial costs continue to rise, and the price competition for low-voltage electrical products continues, the overall profit growth rate of the low-voltage electrical industry is declining. Many excellent companies, including Changshu Switch Manufacturing (limited) companies, can hardly change this trend. Of course, the overall profit level of these outstanding companies is still at the leading level in the industry. In such a big situation, there are still a few excellent companies that maintain rapid growth in profits. The growth of companies such as Zhengtai, Suzhou Fattai, Shanghai Liangxin, Wuxi Xinhongtai and Changzhou Luokai remains at 20%-30%.
Opportunities and Challenges Faced by China's Low-Voltage Electrical Appliance Industry In 2012, the situation faced by the low-voltage electrical appliance industry in China is still the coexistence of opportunities and challenges. From the overall situation, the opportunities are greater than the challenges.
Industry Development Opportunities 1. China's sustained development of the economy is conducive to the development of the low-voltage electrical industry The average GDP growth rate for the “Twelfth Five-Year Plan†in China will be 7%. In 2015, China’s total GDP will exceed 55 trillion Yuan. At the same time, under the backdrop of the grand development goals set forth in the “Twelfth Five-Year Plan†and the sustained growth of the macro economy, fixed-asset investment, industrial production, and overall consumption, especially the rapid growth of urban population, will inevitably boost power generation and electricity consumption. growth of. Therefore, the future market for low-voltage electrical appliances will continue to expand.
2. The innovation drive and transformation and upgrading proposed in the “Twelfth Five-Year Plan†are conducive to upgrade the low-voltage electrical industry The “Twelfth Five-Year Plan†clearly calls for strengthening the transformation of economic development mode and promoting technological innovation.
In the construction of smart grids, the State Grid Corporation of China and many design departments are more inclined to foreign famous brands, coupled with the domestic monopoly industry directly involved in the manufacture of low-voltage electrical appliances, so that existing domestic enterprises, including outstanding enterprises, are at a disadvantage in market competition.
4. There are many low-voltage electrical appliance manufacturers, counterfeiting and price competition still exist, so that the general low-voltage electrical products have been in a meager state. The profits of products such as DW45 universal circuit breakers that had previously played a major role in the development of the low-voltage electrical appliance industry have also dropped significantly.
5. Difficulties brought about by changes in the R&D mode of low-voltage electrical appliances.
With the continuous development of the market economy, the pattern led by the Institute to jointly design new products for the entire industry has been completely broken. Followed by the independent research and development of new products. This caused the internal and external attachments of low-voltage electrical appliances, and the trial production of major component manufacturers. The trial production cost increased significantly, and the production volume of each accessory or component was reduced, it was difficult to form a production scale, and it was difficult to generate profits. The low enthusiasm of the accessory manufacturers also brings difficulties to the whole plant to develop new products.
"Twelfth Five-Year" China's overall development trend of low-voltage electrical appliances 1, the development of personalized, with independent property rights products have become the preferred choice for most companies, each company should be based on the positioning of enterprises to determine 2 to 3 levels of products to meet different levels of market demand.
2. Excellent companies are considering and developing a new generation of low-voltage electrical appliances that are suitable for the characteristics of their own businesses. As a low-voltage electrical appliance industry, a new generation of low-voltage electrical appliances should have the following basic conditions.
(1) Breakthroughs or major innovations in the application of new technologies, new processes, and new materials (2) Significant innovation in product structure (3) Significant improvement and expansion in product performance and functions (4) Breakthrough in R&D and design methods (5) The product manufacturing process and equipment are greatly improved. For those enterprises that do not have the above-mentioned conditions for product development, they can improve and perfect the company's new generation products based on the existing third-generation products.
3. The first batch of four series of next-generation products developed by Shanghai Electronics Group and 8 outstanding companies in the industry will be gradually introduced to the market from next year. The low-voltage electrical appliance market will be re-divided:
(1) The first-generation products will be basically or completely eliminated in the “Twelfth Five-Year Plan†(2) The second-generation products will become low-end products in the low-voltage electrical appliance market and gradually exit the market (3) The third-generation products will become the market leader in low-voltage electrical appliances Products (4) The new generation of products will become the high-end products and development direction of the low-voltage electrical appliance market. 4. To cope with the promotion of the new-generation product market and enhance the competitiveness of the enterprise's market, a new generation of cost-effective, compact, low-cost, popular standard products have caused Everyone is concerned that the characteristics of such products should meet the following requirements.
(1) Appropriately reduce the performance index, can meet the requirement of about 70% use occasion.
(2) The product has complete basic functions and high reliability.
(3) Product miniaturization and low cost.
5, low-voltage electrical system integration and overall solutions have caused more and more companies to pay attention to, a company in the system integration and overall program one step ahead, it is possible to step by step in the market competition. To this end, in-depth studies should be conducted in the following areas.
(1) Typical schemes of low-voltage power distribution systems and the selection of various types of low-voltage circuit breakers and coordination of performance studies.
(2) Research on low-voltage power distribution and control network system: Including the network system, the overall system solution, various types of communicable low-voltage electrical appliances and other supporting components, and their coordination and cooperation.
(3) The overall solution of the over-current protection of the power distribution system aims to achieve full-scale, full-current selective protection in a very short time. (4) The overall solution for over-voltage protection of power distribution systems (including new energy systems).
(5) All kinds of motor start-up, control and protection of the overall solution (6) dual power supply system ATSE use the overall solution 6, new generation of product development must be with intelligent, networked functions, not only with a variety of fieldbus systems Seam connection, also directly connected to industrial Ethernet. The intelligent function should be expanded continuously, and the electrical distribution appliance and the control appliance appear to cross each other, namely the integrated intelligence function, in order to meet the need of the smart grid better. Such as smart grid ACB is no longer a single protection of electrical appliances, but will test, inspection, control, security, management and integration of the five major functions of integrated, multi-functional switch electrical equipment.
The mass production of medium- and low-grade products in the low-voltage electrical appliance industry in China consumes a lot of raw materials, consumes a lot of energy, and also brings high emissions, which is not conducive to the development of a low-carbon economy. Without transformation, it will face the dual constraints of resources and the environment. The third-generation improved products and fourth-generation low-voltage electric appliances that some excellent companies are developing in recent years will meet the requirements of high performance, high reliability, intelligence, and networking, and meet the requirements for miniaturization, low energy consumption, and environmental protection. Low-voltage electrical product design, research and development has shifted from imitation design to independent innovation design.
3. The development of China's power industry will continue to promote the development of the low-voltage electrical industry. In recent years, China's annual capacity for power generation equipment has surpassed the total installed capacity of power generation equipment in the United Kingdom and Germany. However, according to the analysis of per capita electricity consumption, China is still at a low level. In 2010, China's per capita electricity consumption was quite comparable to that of the United States in the 1950s, Britain in the 1960s, and Japan in the 1970s. Therefore, in the long run, there will not be surplus power generation in our country, but there is still huge room for development.
During the 12th Five-Year Plan period, the electricity consumption of the whole society is expected to grow at an average annual rate of 8.5%, and in 2015 it will reach 6.27 trillion kWh. The total power investment in the country will increase by 68% over the “Eleventh Five-Year Plan†to 5.3 trillion yuan, of which the investment in power distribution equipment will be nearly 1 trillion yuan, and the installed capacity of power generation equipment in the country will increase by an average of 9.34% annually. The 11th Five-Year Plan's new capacity has doubled.
With the continuous increase in power equipment, the market for low-voltage electrical appliances and complete sets of equipment will continue to grow, which is self-evident. The demand for replacement of old products will increase by 15-20% as a decade ago.
4. The comprehensive construction of the smart grid will accelerate the transformation and upgrade of the low-voltage electrical appliance industry. The period between 2011 and 2020 will be the major period of China's smart grid construction. The total investment of the smart grid is expected to be close to 4 trillion yuan. At present, the smart grid has entered an important stage of comprehensive construction. The intelligent construction of urban and rural distribution networks will be fully opened. Smart grids and smart complete sets of equipment, intelligent power distribution and control systems will usher in a golden period of development. At the same time, it will accelerate the upgrading of low-voltage electrical products in China and re-divided the low-voltage electrical market. This will certainly be a “gospel†for manufacturing companies with third-generation improvements and fourth-generation low-voltage electrical R&D capabilities.
5. The new round of rural power grid transformation will bring new development opportunities to low-voltage electrical enterprises. In January 2011, the country decided to implement a new round of rural power grid transformation and upgrading projects. During the "12th Five-Year Plan" period, the country's rural power grids will generally be transformed. Basically build a new type of rural power grid that is safe, reliable, energy-saving, environmental-friendly, technologically advanced, and standardized.
It is expected that there will be 500 billion yuan in the country's new round of rural power grid reconstruction project that will be more than a decade old. It is expected that this rural network transformation will bring an explosive increase in the low-voltage electrical market. Many experts did not forget that during the Ninth Five-Year Plan period, the low-voltage electrical products in the transformation of rural power grids over-emphasized the price of the products, resulting in a large number of low-grade low-voltage electrical appliances with poor performance and were used in rural power grids. It brings many hidden dangers to the safe and reliable operation of rural power grids. The transformation of rural power grids must emphasize the quality of electrical and equipment products, product performance and product reliability.
6, a new generation of low-voltage electrical appliances will soon be put on the market will inevitably lead the industry transformation upgrade China's new generation of low-voltage electrical appliances first emphasizes independent innovation, completely out of the imitation-based research and development model. To this end, it is proposed that new generation products should have major breakthroughs in the application of new technologies, and there should be major innovations in the structure of new products, and the performance and function of new products should be significantly improved. At the same time, it should be able to fully meet the development requirements of the smart grid distribution system, while emphasizing green, environmental protection and high reliability. Therefore, low-voltage electrical appliance manufacturers that do not have the ability to innovate, product design technology, and manufacturing capabilities and equipment will face phase-out in the industry reshuffle, and have third-generation and fourth-generation middle-to-high-end low-voltage electrical products that have their own innovation capabilities. Enterprises with advanced manufacturing equipment will further differentiate themselves in the market competition, and the low-voltage electrical appliance industry and product concentration may further increase.
7. New over-current protection technology has gradually caused power systems and power consumers to pay more attention to over-current protection. New technologies will gradually attract the attention of power systems and power consumers after new-generation products are put on the market. It will fundamentally change the selection concept of low-voltage circuit breakers. At present, although China's low-voltage distribution systems and low-voltage electrical appliances have selective protection, selective protection is incomplete. A new generation of low-voltage circuit breakers proposes the concept of full-current, full-range selective protection (referred to as fully selective protection). It will completely change the overcurrent selective protection of the existing distribution system, which is limited to the short-circuit current setting range of the circuit breaker. If it exceeds this current, it may lose selective protection. In addition, the existing terminal distribution system does not have a selective protection function because the main switches are current-limiting switches. Therefore, in the strict sense, the current terminal distribution system of buildings, especially the tens of thousands of households, does not have selective protection. A new generation of universal circuit breakers implements Icu=Ics=Icw with a zone interlocking module. A new generation of MCCBs with partial current limiting selective protection with regional interlocking modules and the selective protection of small circuit breakers SMCB was born, creating the necessary conditions for fully selective protection of the distribution system. It will be a major breakthrough in over-current protection technology for low-voltage power distribution systems in China. Has far-reaching economic and social benefits.
8. The outstanding domestic companies continuously pay attention to, follow and surpass the foreign company's products. Foreign famous low-voltage electrical appliance manufacturers have continuously introduced new products and their marketing in recent years. To a certain extent, they “encourage†outstanding domestic companies to pay close attention, keep up, and surpass. Foreign company products, otherwise they will lose competitiveness in the market.
Challenges faced by the industry 1. The research and new product R&D investment in the low-voltage electrical industry is obviously insufficient, which hinders the sustainable development of the low-voltage electrical industry.
Low-voltage electrical products span multiple disciplines and are comprehensive and technology-intensive. With the development of related technologies, related new materials, and new technologies, a new generation of low-voltage electrical appliances will be born, but a large amount of investment is still needed. According to statistics, outstanding foreign companies can achieve total sales of about 7% in the research and R&D investment of low-voltage electrical products. China's average investment in the low-voltage electrical industry is 1-2% of total sales, and excellent companies are about 3%.
Under the background of the continuous development of new technologies and new products for low-voltage electrical appliances and the increasing attention paid to the development of smart grid and safe use of electricity, if the low-voltage electrical industry in China does not increase investment in research and new product R&D, and does not increase research on basic generic technologies, the Improving the ability of independent innovation of enterprises will inevitably hinder the sustainable development of China's low-voltage electrical industry, and lose its market competitiveness.
2. The rising trend of manufacturing costs of low-voltage electrical appliances is irreversible. In low-voltage electrical appliances in China, low-grade products are still produced in large quantities. This batch of products is bulky and consumes a large amount of precious metal silver and copper, ferrous metals, plastics and other materials. Many materials are subject to international market prices. Therefore, the situation in which the prices of main raw materials of low-voltage electrical appliances remain high and even continue to rise will hardly change.
In addition, with the shortage of funds, rising financial costs, and the rapid increase in the wages of employees, the increase in personnel costs cannot be reversed. It will surely cause the profit of low-voltage electrical appliances to keep falling. Many companies are already in a state of low profit and loss. At the same time, the company has increased scientific research, and new product R&D and technical investment have brought difficulties.
3, the impact of foreign famous brands and the domestic monopoly industry to join the domestic low-voltage electrical outstanding enterprises worse.
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