Nanyang Keda Electric Co., Ltd. is a specialized manufacturer and trading company established in 2011, headquartered in the Jinguan Technology Industry Park in Nanyang, Henan, China. Operating a facility covering over 13,000 square meters with an initial investment of 12 million RMB, the company has grown into a leading supplier of electrical protection components. The enterprise employs between 51 and 100 personnel, including a dedicated R&D team of 17 senior and middle-level technical experts focused on high-tech driven production.
The company's core product portfolio centers on high-quality zinc oxide varistors (MOV) and varistor core sets, including AC and DC types, ZnO blocks, and resistors. These components are engineered to meet the rigorous assembly requirements for AC lightning arresters, GIS surge arresters, UHV surge arresters, and rail transformation systems. Additionally, the company produces finished polymer housing arresters, surge arrester counters, and dropout fuse cutouts. Their manufacturing capabilities are supported by over 50 sets of advanced equipment, including particle-spray machines, tunnel kilns with a monthly capacity of 100 tons of ZnO, and specialized testing instruments such as 3000A square wave test equipment and 100kV DC high-voltage generators.
Nanyang Keda Electric maintains a robust quality management system with certifications including ISO 9001, ISO 14001, ISO 28000, and ISO 45001. Their products have successfully passed identification tests at the Xi'an High Voltage Apparatus Research Institute (XIHARI) and the National Insulator Lightning Arrester Quality Supervision and Inspection Center. With an annual revenue reaching up to USD 50 million, the company serves both domestic and international markets across North and South America, Europe, Southeast Asia, and the Middle East.
Hangzhou Yongde Electric Appliances Co., Ltd., established in 1993, is a high-tech enterprise and a recommended model company for China's national power grid construction. Based in Hangzhou, Zhejiang province, the company operates as a professional manufacturer and trading entity specializing in high-voltage electrical protection and switching equipment. With a workforce of approximately 150 to 200 employees, including a dedicated scientific research and development team, the company maintains a leading position in the power industry through continuous investment in advanced CNC machinery and automated production lines.
The company's core product portfolio includes a comprehensive range of 0.22kV to 500kV metal oxide surge arresters, zinc oxide varistors (MOV), and 10kV to 220kV outdoor high-voltage disconnecting switches. Their manufacturing capabilities extend to composite insulators, fuse cutouts, earthing switches, surge arrester counters, and motor operating mechanisms. Hangzhou Yongde provides OEM and ODM services, supported by an internal professional design team and a rigorous quality control system.
Demonstrating a commitment to international standards, the company is ISO 9001, ISO 14001, and ISO 45001 certified. Their products are KEMA tested and comply with IEC60099-4 standards, ensuring reliability for substation and transmission line applications. With an export share of approximately 30%, the company serves global markets with high-performance electrical components designed for power station and grid infrastructure.
Composite Silicon Rubber Ceramic Insulator$1
Composite Insulator High Voltage Insulator$1
Ceramic Insulator Silicon Rubber Insulator$1
Polymer Insulator Surge Arrester$1
Cesi OEM/ODM Middle Voltage 15kv Metal Oxide Gapless Composite Outdoor Line Type Surge Arrester/Lightning Protector Arrester$20
66kv 10ka Polymer Housed Surge Arrestors with Kema Type Test Reports Factory Customization OEM and ODM for Transmission Line or Substation$20
500kv Outdoor Substation Ceramic Housing Zinc-Oxide Surge Arrester Without Gaps$1
Power Transmission 100kv Zinc Oxide Varistors Lightning Arrester with Kema$1
Surge Protection Insulator SPD Arrester$0.1
12kv 10ka Polymer Housed Surge Arrestors with Kema Type Test Reports Factory Customization OEM and ODM for Transmission Line or Substation$20
Gw37 Vertical - Break High Voltage Isolator Switch$1
Kema OEM/ODM Middle Voltage 21kv 10ka Metal Oxide Gapless Polymer Outdoor Line Type Surge Arrester/Lightning Protector Arrester$20