Industry-standard U120BLA series and specialized high-voltage insulators
Founded in December 2002, Jiangxi QOCI Electric Co. Ltd has emerged as a global leader in the high-voltage transmission equipment sector. With a registered capital of 508 million Yuan and a sprawling 70,000 m² state-of-the-art facility in Luxi Industrial Park, Pingxiang, Jiangxi Province, we epitomize the peak of Chinese industrial capacity and technical innovation.
Our core mission is to serve world-class power grids with dedication, actively participating in the construction of green energy infrastructure globally. By integrating R&D, manufacturing, and localized support, we ensure that every U120BLA glass insulator leaving our factory meets the most stringent international standards (IEC, ANSI, BS).
Why U120BLA is the industry standard for 120kN suspension systems
The U120BLA Glass Insulator is not merely a piece of glass; it is a marvel of thermal and mechanical engineering. Unlike traditional porcelain, toughened glass undergoes a precise quenching process that creates a prestressed outer layer. This ensures that the insulator possesses an electromechanical failing load of 120kN. In the rare event of a failure, the glass shatters into small, non-sharp fragments, providing a "fail-safe" visual indicator for line inspectors—a feature often referred to as "Self-Shattering" without loss of mechanical integrity.
Our China-based factories produce U120BLA units that strictly adhere to IEC 60305. Key parameters include:
Currently, the demand for U120BLA insulators is surging due to the expansion of UHV (Ultra-High Voltage) DC and AC projects in Southeast Asia, Africa, and Latin America. China’s role as the "World’s Factory" for insulators is no longer just about cost, but about supply chain resilience and the ability to scale production for 500kV+ transmission lines.
We provide comprehensive localized support, including on-site technical training and compliance documentation for regional power authorities. Our insulators are certified for use in diverse environments, from the high-salinity coastal zones to high-altitude Andean terrains.
The strength of Jiangxi QOCI Electric lies in our vertical integration. Our Total Oxygen Kiln and automated Forming Press lines allow for precise control over raw material purity. In an era of global logistics uncertainty, our Jiangxi factory offers a "One-Stop" solution—from raw mineral processing to final high-voltage testing.
Forming Press Precision
Total Oxygen Kiln Tech
Rigorous HV Testing
U120BLA deployment across diverse geographic landscapes
The U120BLP (Anti-pollution type) features an aerodynamic profile that prevents salt accumulation, crucial for offshore wind farm connections and coastal power grids.
Our toughened glass maintains its dielectric strength even in thin-air environments, making it the preferred choice for mountain transmission lines in central Asia and South America.
In regions with high particulate matter (cement factories, mining), the self-cleaning properties of our glass surface minimize leakage currents and flashover risks.
The next decade of glass insulator technology will be defined by RTV (Room Temperature Vulcanization) Silicone Coating and Smart Monitoring Integration. Jiangxi QOCI is already pioneering RTV-coated glass insulators which combine the mechanical strength of glass with the superior hydrophobicity of silicone. This "Hybrid" approach represents the future of ultra-low maintenance power grids.
Eliminating the need for regular manual cleaning in extreme pollution zones.
Implementing QR-code based lifecycle tracking for every U120BLA unit produced.
100% recyclable glass components to meet global Net-Zero initiatives.
Jiangxi QOCI Electric Co. Ltd is a proud partner of major state grid corporations and international EPC contractors, delivering reliability to the world's most critical infrastructure.
