Zhejiang Jinlihua Electric Co., LTD., formerly known as Zhejiang Jinlihua Electric Co., LTD., was established in April 2003. In December 2007, it was restructured and established as a joint stock limited company. In April 2010, the company was successfully listed on the Shenzhen Stock Exchange, becoming one of the leading listed companies in the domestic industry. It is located in the Jindong Economic Development Zone, Jinhua City, Zhejiang Province, at the intersection of the Hangzhou-Jinhua-Quzhou and Ningbo-Jinhua Expressways and Provincial Road 03, with convenient transportation and obvious geographical advantages.
Since its establishment, the company has been dedicated to the research of new high-strength functional glass manufacturing technology and the development of ultra-high voltage power transmission and transformation insulating equipment. Its main business involves the research and development, production, sales and related technical services of glass insulators used for insulating and suspending conductors in high-voltage, ultra-high-voltage and extra-high-voltage AC and DC power transmission and transformation lines. The main products are disc-shaped suspended high-strength glass insulators used for insulation and suspension of conductors in high-voltage, ultra-high-voltage and extra-high-voltage AC and DC transmission lines. The products include 6 major series (standard type, stain-resistant type, aerodynamic type, ground type, DC type, multi-umbrella type), over 50 varieties and more than 90 specifications and models. The line voltage levels cover from 10kV to 1. The range of 000kV.
Through continuous technological innovation, the company has gradually developed 7 core proprietary technologies in three fields: glass insulating material manufacturing, glass insulator product manufacturing, and industrial appearance design of glass insulators. It has obtained 32 utility model and design patents, 1 software copyright, and participated in the construction of 180 major and key national projects and 500kV and above lines. It is one of the few domestic manufacturers that possess mature production technology for AC and DC ultra-high voltage glass insulators.
In September 2007, the 530 (550) kN glass insulator produced by the company, which currently has a relatively high mechanical load grade in the industry and is suitable for 1,000 kV AC ultra-high voltage transmission lines, was the first to pass the new product technical appraisal of this grade of glass insulator organized by the China Electricity Council. It was also included in the "National Key New Products of 2007" by four ministries and commissions including the Ministry of Science and Technology of the People’s Republic of China. On September 19, 2008, the company was recognized as a new type of technology enterprise in the field of new materials manufacturing technology. In November 2008, the company’s "Industrialization of Tempered Glass Insulators for 1 Million Volts Ultra-High Voltage Lines" project was recognized by the Ministry of Science and Technology of the People’s Republic of China as a 2008 National Torch Program project. In December 2008, the company’s technology research and development center was recognized as a "Provincial New Technology Enterprise Research and Development Center" by the Zhejiang Provincial Department of Science and Technology. In August 2011, the company’s "Research and Industrialization of ±800kV DC Tempered Glass Insulator Project" was recognized by the Ministry of Science and Technology of the People’s Republic of China as a "National Torch Program Project of 2011". In May 2012, the company’s "±800kV DC Tempered Glass Insulator" was listed as a "National Key New Product of 2012" by four ministries and commissions including the Ministry of Science and Technology.
The company has established a complete quality management system in accordance with the ISO9001:2000 quality system standard, and implements standardized management and control throughout the entire process of product design and development, production, sales and service. On this basis, the company has also established a technical inspection center with the full set of type test project testing capabilities, equipped with advanced testing equipment such as 1200kV lightning impulse generators and 500kV power frequency test transformers. Lightning impulse withstand voltage tests can be conducted under certain temperature and humidity conditions. Power frequency dry and wet withstand voltage test Power frequency breakdown withstand voltage test Ion migration test Volume resistance test Various type tests such as radio interference tests and steep wave impulse tests. At the same time, the company also possesses internationally advanced glass insulation component inspection assembly line management technology and a video management system for key process points throughout the entire process. This has enhanced the company’s effective detection rate of substandard glass insulation components, reduced the self-explosion rate of critical finished products, and effectively monitored key process points in real time, ensuring the traceability of product quality.
After years of development, the company has become a major supplier of high-voltage line glass insulators for large domestic power grid operation enterprises. It has established corresponding marketing and service networks in more than twenty provinces and cities, providing customers with high-quality services. In the future development, the company will continue to expand the sales scope, form a marketing system covering domestic and foreign markets, and strive to build the company into a "leading domestic and leading international" glass insulator manufacturer.
Since its establishment, the company has been dedicated to the research of new high-strength functional glass manufacturing technology and the development of ultra-high voltage power transmission and transformation insulating equipment. Its main business involves the research and development, production, sales and related technical services of glass insulators used for insulating and suspending conductors in high-voltage, ultra-high-voltage and extra-high-voltage AC and DC power transmission and transformation lines. The main products are disc-shaped suspended high-strength glass insulators used for insulation and suspension of conductors in high-voltage, ultra-high-voltage and extra-high-voltage AC and DC transmission lines. The products include 6 major series (standard type, stain-resistant type, aerodynamic type, ground type, DC type, multi-umbrella type), over 50 varieties and more than 90 specifications and models. The line voltage levels cover from 10kV to 1. The range of 000kV.
Through continuous technological innovation, the company has gradually developed 7 core proprietary technologies in three fields: glass insulating material manufacturing, glass insulator product manufacturing, and industrial appearance design of glass insulators. It has obtained 32 utility model and design patents, 1 software copyright, and participated in the construction of 180 major and key national projects and 500kV and above lines. It is one of the few domestic manufacturers that possess mature production technology for AC and DC ultra-high voltage glass insulators.
In September 2007, the 530 (550) kN glass insulator produced by the company, which currently has a relatively high mechanical load grade in the industry and is suitable for 1,000 kV AC ultra-high voltage transmission lines, was the first to pass the new product technical appraisal of this grade of glass insulator organized by the China Electricity Council. It was also included in the "National Key New Products of 2007" by four ministries and commissions including the Ministry of Science and Technology of the People’s Republic of China. On September 19, 2008, the company was recognized as a new type of technology enterprise in the field of new materials manufacturing technology. In November 2008, the company’s "Industrialization of Tempered Glass Insulators for 1 Million Volts Ultra-High Voltage Lines" project was recognized by the Ministry of Science and Technology of the People’s Republic of China as a 2008 National Torch Program project. In December 2008, the company’s technology research and development center was recognized as a "Provincial New Technology Enterprise Research and Development Center" by the Zhejiang Provincial Department of Science and Technology. In August 2011, the company’s "Research and Industrialization of ±800kV DC Tempered Glass Insulator Project" was recognized by the Ministry of Science and Technology of the People’s Republic of China as a "National Torch Program Project of 2011". In May 2012, the company’s "±800kV DC Tempered Glass Insulator" was listed as a "National Key New Product of 2012" by four ministries and commissions including the Ministry of Science and Technology.
The company has established a complete quality management system in accordance with the ISO9001:2000 quality system standard, and implements standardized management and control throughout the entire process of product design and development, production, sales and service. On this basis, the company has also established a technical inspection center with the full set of type test project testing capabilities, equipped with advanced testing equipment such as 1200kV lightning impulse generators and 500kV power frequency test transformers. Lightning impulse withstand voltage tests can be conducted under certain temperature and humidity conditions. Power frequency dry and wet withstand voltage test Power frequency breakdown withstand voltage test Ion migration test Volume resistance test Various type tests such as radio interference tests and steep wave impulse tests. At the same time, the company also possesses internationally advanced glass insulation component inspection assembly line management technology and a video management system for key process points throughout the entire process. This has enhanced the company’s effective detection rate of substandard glass insulation components, reduced the self-explosion rate of critical finished products, and effectively monitored key process points in real time, ensuring the traceability of product quality.
After years of development, the company has become a major supplier of high-voltage line glass insulators for large domestic power grid operation enterprises. It has established corresponding marketing and service networks in more than twenty provinces and cities, providing customers with high-quality services. In the future development, the company will continue to expand the sales scope, form a marketing system covering domestic and foreign markets, and strive to build the company into a "leading domestic and leading international" glass insulator manufacturer.
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