As the global energy landscape transitions toward smart grids and ultra-high voltage (UHV) transmission, the demand for high-reliability insulation components has never been higher. As a premier tempered glass manufacturer and supplier, Jiangxi QOCI Electric Co. Ltd stands at the forefront of this technological evolution. Toughened glass insulators offer a unique combination of mechanical strength and electrical dielectric properties that surpass traditional materials in extreme environments.
Our commitment to "Information Gain" involves providing procurement officers and electrical engineers with deep technical insights. Unlike porcelain, toughened glass provides a "zero-maintenance" self-shattering characteristic. In the event of an electrical failure or mechanical overload, the glass shell shatters into small, non-hazardous particles, making faulty units instantly visible from the ground—eliminating the need for expensive airborne infrared inspections.
Jiangxi province is globally recognized as the "Insulator Capital," providing a robust cluster of raw materials and logistics excellence. By leveraging Jiangxi QOCI’s strategic location, we offer:
Global utility companies like State Grid, Enel, and various national electricity boards require more than just a product; they require compliance and longevity. Our insulators are tested to meet and exceed:
Jiangxi QOCI Electric Co. Ltd was founded in Dec. 2002, with registered capital of 508 million Yuan. Located in the Industrial Park, Luxi County, Jiangxi Province, our facility covers over 100 mu (70,000 m²).
We serve the world-class power grid with dedication, actively participating in the construction of green energy infrastructure globally. Responsibility is our guarantee of quality, ensuring the absolute safety of power transmission networks.
Our Anti-Pollution (Fog) profiles feature deep under-ribs that prevent salt-spray accumulation, ensuring grid stability in coastal regions.
Aerodynamic (Open) profiles utilize wind-flow to self-clean sand and dust, preventing leakage currents in desert environments.
RTV Silicone Coated Glass provides a hydrophobic surface that repels industrial pollutants and prevents flashovers in smog-heavy areas.
Our Triple-Shed and Double-Shed designs provide the extended creepage distance required for 500kV, 800kV, and 1000kV lines.
Silicone-coated insulators offer an excellent alternative which guarantees optimum performance for high voltage overhead lines in areas with heavy pollution. They minimise leaking currents and thereby reduce operation and maintenance costs. The product used to coat the insulators is Room Temperature Vulcanization (RTV) silicone which contains mineral fillers embedded in the silicone itself. This silicone increases the hydrophobic nature of the insulator’s surface, thereby improving its performance in polluted areas.
The characteristic of the standard profile is that the leakage distance is higher than the value indicated for standard insulators in IEC 60305. The fog type profile is characterized by long and widely-spaced under-ribs so as to avoid arc bridging between adjacent ribs, particularly effective in coastal areas (Salt fog).
Forming Press
High Voltage Test
Total Oxygen Kiln
Accelerating the global energy transition through advanced energy storage and transmission technologies.
Having withstood extreme icing, earthquakes, and typhoons, China’s insulator industry is leading the way.
May 10, 2026Showcasing our latest UHV glass insulator developments to the powerhouse of the electrical industry.
April 22, 2026Expanding our footprint in the Middle East with high-performance anti-pollution glass insulators.
December 30, 2025
