Xi'an Shendian Electric Appliance Co., Ltd. is one of the designated manufacturers of metal oxide lightning arresters, neutral grounding resistors, varistors, surge protectors, resistors, cable accessories, tubular busbars, capacitive sleeves, composite insulators, epoxy insulation products, and vacuum pressure impregnation products in China. The company is located at No. 23 Development Avenue, New Industrial Park, High tech Zone, Xi'an City, covering an area of 19000m2, a building area of 24000m2, and has fixed assets of 200 million yuan. There are currently 330 employees, including 79 professional and technical personnel, and 20 experts in the design and manufacturing of lightning arresters, resistors, cable accessories, and epoxy insulation products that have made outstanding contributions to the country. Since its establishment in 1985, the company has maintained close cooperative relationships with relevant universities, research institutes, and national insulator lightning arrester quality supervision and inspection centers. With more than 30 years of production experience, we have formed a domestically advanced production line for zinc oxide resistors, vulcanization, molding, assembly, and testing of silicone rubber products. We have a skilled workforce, complete process equipment, and complete production and testing facilities. It mainly includes tunnel furnace, spray granulator, water containing mixer, full-automatic hydraulic press, rubber mixing machine, vulcanizing machine, full-automatic silica gel injection and molding equipment, megavolt ultra-high voltage test station, partial discharge test equipment, full-automatic DC parameter tester, full-automatic square wave test equipment, residual voltage test equipment, AC/DC aging test equipment, high current impact test equipment, X-ray real-time imaging system, salt spray/humidity test system, leakage tracking test equipment, helium mass spectrometry detection equipment, etc. The test accuracy is high, reaching the domestic advanced level. The company mainly develops and produces various specifications and models of ceramic and composite metal oxide lightning arresters for 0.22-330kV, 5-1500V power, signal, and feeder series surge protectors, 0.4-1100kV resistors, 35-330kV transformer neutral grounding protection devices, counters, monitors, 1-220kV cable accessories, tubular busbars, capacitive sleeves, epoxy insulation products, composite insulators, and other products. Multiple national patents have been obtained for the combination type composite jacket metal oxide lightning arrester, fully insulated lightning arrester, series gap line type lightning arrester, touchable overvoltage protector, neutral point grounding resistor, and resistor. Our company independently drafted the national combination standards JB/T10496 "AC three-phase combination gapless metal oxide surge arrester" and JB/T10609 "AC three-phase combination series gap metal oxide surge arrester", and participated in the drafting of 12 national and industry standards. The product design is reasonable and has fully passed the type test and two (provincial) evaluations. All technical performance meets the requirements of national standards and IEC standards, and can design and manufacture lightning arresters and resistors with special specifications according to user requirements. While continuously pursuing the improvement of enterprise operation mechanism, the company has strictly established a quality/environment/occupational health and safety management system in accordance with GB/T19001-2008, GB/T24001-2004, and GB/T28001-2007 standards, actively promoting 6S management. The company has successfully passed the CRCC certification of China Railway Corporation, the China Intellectual Property Management System certification, the EU EN15085-2 rail vehicle and its component welding system certification, and the IRIS railway industry quality management system certification, and will make greater efforts to provide users with better quality and high-quality services. For many years, the company has been providing supporting services for major switch manufacturers and power systems across the country. Some of its products are also exported as supporting products, and the operation of the hanging network is good. The product quality is stable, and there have been no reports of quality accidents so far, which has been highly praised and trusted by users. For consecutive years, it has been awarded various honors such as "Advanced Enterprise in Quality Management", "Science and Technology Demonstration Enterprise", "Trustworthy Enterprise in Quality", and "Contract abiding and Creditworthy Enterprise" at the provincial and municipal levels. It has been commended in the quality sampling of the National Technical Supervision Bureau in previous years. The lightning arrester product has been included in the first batch of recommended list of major equipment and production enterprises required for the construction and renovation of urban and rural power grids in China. It has won honors such as provincial famous brand product, provincial famous trademark, and key unit of patent industrialization project for consecutive years, and has been confirmed by the Xi'an Municipal Government as the "Xi'an Overvoltage Protection Engineering Technology Research Center". The company strives to implement the principle of "sales for the sake of customers, after-sales service for customers, to win the trust of customers with dedicated service, and to enhance friendship in business". We sincerely hope to cooperate with friends from all walks of life and new and old users to pursue excellence together.