Engineered for extreme pollution environments and high-altitude transmission lines.
The transmission landscape has shifted from traditional porcelain to Toughened Glass Insulators. The emergence of the Double-Shed Type (External Shed) design marks a significant milestone in "Information Gain" for power grid operators. Unlike standard profiles, the Double-Shed design utilizes two distinct, wide-diameter ribs that prevent the accumulation of industrial pollutants and saline deposits. This architecture facilitates a self-cleaning mechanism powered by natural wind and rain, effectively reducing the "flashover" risk in high-humidity coastal and industrial zones.
As a leader with over 20 years of experience (Est. 2002), Jiangxi QOCI Electric Co. Ltd operates with a registered capital of 508 million Yuan. Our technical authority is backed by a 39,000-ton annual output and 26+ invention patents. The "Double-Shed" series is manufactured using high-strength toughened glass, ensuring that if a failure occurs, the glass shatters into small granules, providing an immediate visual signal for maintenance—a critical "reliability" factor that porcelain cannot match.
Global EPC contractors and power utilities in the Middle East, Southeast Asia, and South America are increasingly prioritizing the Double-Shed Type for UHV (Ultra High Voltage) projects. The specific intent is to lower "Total Cost of Ownership (TCO)." By selecting insulators like the U160BD or U300BD, procurement managers ensure long-term creepage distance stability and mechanical integrity (up to 300kN) in environments where sandstorms or salt-fog are prevalent.
Strategic engineering for the next generation of smart grids.
Implementation of the External Shed Profile to eliminate under-rib debris accumulation. This solution is specifically adapted for industrial corridors where chemical particulate matter is a constant threat to grid stability.
Our roadmap includes the development of U530 series glass insulators, targeting the highest voltage tiers globally. The Double-Shed design is optimized for both AC and DC applications, providing uniform field distribution.
Future-proofing through RTV (Room Temperature Vulcanization) silicone coating applications on Double-Shed glass. This hybrid approach combines the mechanical strength of glass with the superior hydrophobicity of silicone.
Utilizing Total Oxygen Kilns to reduce carbon emissions during the glass-melting process. This aligns with global "Green Energy" mandates, making our products the preferred choice for eco-conscious power projects.
Founded in 2002, Jiangxi QOCI Electric Co. Ltd has dedicated two decades to serving the world-class power grid. Located in Luxi County, Pingxiang—the "Capital of Porcelain"—we have transcended traditional methods by investing in state-of-the-art Forming Presses, Total Oxygen Kilns, and High Voltage Test labs.
Navigating international standards with local expertise.
Every Double-Shed insulator (U70BD to U300BD) is rigorously tested against IEC 60305, 60383, and 60120. For North American markets, we provide full compliance with ANSI C29.2B class standards.
Fast delivery is guaranteed through our optimized supply chain. We offer specialized packaging for maritime transport, ensuring zero-damage arrival for high-tonnage glass insulators.
Our engineering team provides global on-site consultation for string configuration, installation guidance, and pollution-level assessment to ensure the correct shed profile is selected.
It is a specific design where the insulation disc has two external ribs instead of the standard under-ribs. This design is specifically created to facilitate wind-driven self-cleaning and prevent "ice-bridging" or "pollution-bridging" across the ribs.
Double-Shed types are superior in high-pollution areas. While standard profiles are cost-effective for clean areas, Double-Shed units provide a more stable leakage distance in coastal salt-fog or industrial smog environments.
The "U" stands for suspension type, "120" indicates the electromechanical failing load of 120kN, and "BD" typically denotes the Double-Shed (external shed) anti-pollution profile.
Yes. Our glass insulators are designed with a surface finish that is ideal for RTV silicone coating application, further enhancing hydrophobicity for the most extreme environments on earth.
Toughened glass insulators are known for their exceptional longevity, often exceeding 40-50 years. Their aging process is negligible compared to composite or porcelain alternatives.
Every single unit undergoes a "thermal shock" test and a routine mechanical test. Our laboratory is equipped for steep-front impulse voltage tests and radio interference voltage (RIV) monitoring.
Explore our complete range of toughened glass and porcelain insulators.
