Precision-engineered suspension glass insulators designed for extreme mechanical tension and electrical reliability.
Founded in 2002, Jiangxi QOCI Electric Co. Ltd has established itself as a titan in the electrical power industry. With a registered capital of 508 million Yuan and a strategic location in the Luxi Industrial Park, Jiangxi, China, we operate as a pivotal hub for global transmission line technology.
Our commitment to "Serve the world-class power grid with dedication" drives our active participation in green energy construction, providing the structural backbone for 220kV to 1100kV UHV projects.
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Global Patents
Navigating the transition from traditional AC grids to Smart HVDC (High Voltage Direct Current) Super-grids.
Unlike porcelain, toughened glass suspension insulators offer automatic fault detection. If an electrical or mechanical failure occurs, the glass body shatters, providing a visual "zero-value" indication that simplifies maintenance and increases grid safety.
Our RTV (Room Temperature Vulcanization) silicone-coated glass insulators merge the mechanical strength of glass with the hydrophobicity of composite materials. This is the future for coastal and industrial areas with high salinity or pollution levels.
With the rise of long-distance energy transmission, our U40B to U300B series are optimized for HVDC overhead lines, mitigating the effects of ion migration and ensuring a service life exceeding 40 years.
Industry data shows that glass insulators maintain superior dielectric strength over time. While porcelain may suffer from "internal hidden cracks" that lead to puncture, toughened glass is either fully functional or visibly shattered. This 100% reliability in inspection reduces O&M costs by up to 35% over the grid lifecycle.
Our manufacturing facility utilizes the Total Oxygen Kiln technology, a breakthrough in reducing carbon emissions while ensuring a perfectly homogeneous glass melt. The Forming Press systems are fully automated, ensuring every U120BL or U210B disc meets exact IEC 60305 dimensions.
Customized insulation architectures for the world's most challenging environments.
Designed with long under-ribs to prevent arc bridging in salt-fog coastal zones.
The "desert solution." No under-ribs prevent sand and dust accumulation, relying on natural wind for self-cleaning.
Maximized creepage distance for UHV lines, ensuring stable performance in extreme humidity.
All products are rigorously tested to IEC 60305, IEC 60383, ANSI C29.2B, and BS 137 standards. Our lab conducts steep-front impulse voltage tests and thermal-mechanical performance tests on every batch.
With a 39,000-ton annual capacity, we guarantee Fast Delivery Times. Our engineering team provides localized technical support for project bidding in Africa, South America, and Southeast Asia.
Direct manufacturer pricing eliminates middleman markups, reducing total project CAPEX.
From 40kN to 530kN mechanical strength, we customize cap-and-pin designs for specific hardware fittings.
Trusted by State Grid China and international utilities in over 40 countries.
As the global energy transition accelerates, we are participating in key energy exhibitions to showcase our UHV solutions.
A mature portfolio having withstood extreme environmental conditions including icing, high altitude, and earthquakes.
Join our team to explore the powerhouse of transmission and distribution technologies.
