Explore our premium grade industrial-rated disc suspension and spool electric insulators engineered for grid robustness and safety.
Founded in December 2002 with a registered capital of 508 million Yuan, Jiangxi QOCI Electric Co. Ltd has established itself as an international benchmark in the engineering and production of ultra-high voltage (UHV) glass insulation systems.
Situated within the Industrial Park of Luxi County, Pingxiang, Jiangxi Province, our manufacturing base spans an extensive area of 70,000 square meters. Powered by advanced automated production lines and an executive crew of 53 engineering technicians, we maintain an annual output capacity of over 39,000 tons of high-strength toughened glass insulators. Our unwavering commitment to research has secured 26+ national patents, placing us at the forefront of the electrical infrastructure industry.
The global transition towards reliable high-voltage overhead lines relies intensely on critical line hardware. Among these, the U160BS toughened glass suspension insulator is a foundational pillar. Characterized by its rated electromechanical failing load of 160 kN, this glass unit is engineered to support structural span stresses and electrical load dynamics under diverse, demanding environments. From ultra-high voltage (UHV) AC corridors to direct current (UHVDC) systems, the U160BS configuration complies with IEC and ANSI standards, ensuring top performance and preventing sudden service interruptions.
Compared to composite or porcelain options, toughened glass brings unmatched advantages. Thanks to their specialized chemical formulation and thermal quenching manufacturing process, our glass units offer structural homogeneity. Under extreme load stress or lightning surges, any structural breakdown of the toughened glass disc results in safe shattering ("zero-power self-shattering"), leaving the residual glass stub intact. This prevents line drops, provides visible inspection alerts, and simplifies maintenance, helping utility teams run cost-effective operations.
Different environments require custom insulator shapes. Our manufacturing lines produce several tailored profiles:
Our Standard Profile features a leakage distance that exceeds the minimum specifications outlined in IEC 60305. Designed with shallow, well-spaced ribs, it allows wind and rain to naturally wash away surface dust, making it ideal for standard environments.
Characterized by deep, widely-spaced under-ribs, this design prevents electrical bridging from moisture. With a leakage-to-spacing ratio of approximately 3.2, it is highly effective in marine, salt fog, and industrial areas.
By omitting under-ribs and expanding the disk diameter, this open design prevents sand, dust, and ice accumulation. It is highly suited for desert regions with strong winds and infrequent rainfall.
Featuring two external ribs, this shape keeps contaminant buildup to a minimum. Strong winds easily clear off surface debris, and manual cleaning is straightforward when serving in heavily polluted industrial areas.
Featuring three distinct, separated umbrella layers, the triple-shed profile provides an extended creepage path. This structure prevents flashovers in humid coastal regions, high altitudes, and polluted corridors.
Our Ground-Wires profile safely channels lightning strikes to ground. For extreme pollution, our RTV (Room Temperature Vulcanization) silicone-coated glass units resist wetting and leakage currents, eliminating the need for periodic manual washing.
Standard glass insulators can experience stress and performance drops when deployed across different geographic terrains. To address this, our team optimizes the U160BS design to ensure long-term service under specific environmental conditions:
Marine environments submerge glass components in corrosive salt fog. This forms a conductive layer on the glass surface, risking leakage currents and dry band arcing. Our high-leakage anti-fog U160BS designs counter this by widening the rib distance. This prevents moisture bridges, reduces leakage currents, and keeps the grid operating reliably without frequent maintenance shut-downs.
Desert and industrial areas struggle with dry dust accumulation. When rain finally falls, the built-up dirt can cause major flashovers. For these settings, our open-profile desert insulators feature smooth, deep-shed contours. This design lets winds self-clean the glass, preventing heavy dust deposits and protecting the system from contaminants.
Accumulating ice and heavy snow can easily bridge adjacent glass sheds, short-circuiting the system. To prevent this, we alternate disk diameters in our high-altitude configurations. This design breaks the path of falling icicles, keeping lines clear and stable even in deep winter.
Chemical fumes, acidic rain, and heavy industrial pollutants will rapidly degrade standard composite housings. Our inorganic toughened glass is naturally resistant to chemical wear. For extra protection, our RTV-coated glass units offer hydrophobicity, ensuring they perform reliably even in harsh chemical environments.
As a leading exporter of grid hardware, China's manufacturing advantages go beyond simple cost efficiencies. Jiangxi QOCI Electric Co. Ltd offers complete vertical integration, from raw material formulation to final high-voltage testing. This allows us to supply global markets with stable pricing and dependable delivery times.
Our factory operates computer-controlled, total-oxygen glass furnaces. These units keep temperatures uniform, which prevents microscopic bubbles and crystallization. This precise process results in a pure glass body, drastically lowering the risk of spontaneous glass shattering in the field.
Advanced hydraulic presses mold the liquid glass into precise aerodynamic profiles. This automated process ensures identical mechanical dimensions, maintaining balanced load sharing across assembled insulator strings.
Rapid thermal quenching creates balanced compression stress on the outer glass shell, while keeping the inner core in tension. This thermal profile gives the glass high impact resistance and dependable structural strength.
To guarantee the long-term reliability of our U160BS insulators, every production batch goes through rigorous testing at our facilities:
Our manufacturing and testing facilities are fully certified, ensuring every insulator meets international performance standards.
As transmission voltages rise to 1000kV UHVAC and ±800kV UHVDC levels, grid systems face tougher demands. Jiangxi QOCI Electric is investing in key areas to meet these challenges:
We are refining the silica glass matrix with specialized oxides to improve electrical and mechanical strength. These enhancements reduce thermal expansion, helping our insulators handle sudden temperature drops in high-altitude regions.
We are developing "smart" glass suspension strings equipped with built-in sensors. These sensors monitor structural load, leakage currents, and temperature changes in real-time. This helps operators identify grid issues early and plan targeted maintenance.
We are integrating waste heat recovery systems and clean gas fuels into our oxygen-kilns. This significantly lowers carbon emissions per ton of glass produced, supporting clean energy goals and eco-friendly manufacturing standards.
Providing high-reliability supply chains and logistics support for power grid builders worldwide.
Stay informed with the latest updates from Jiangxi QOCI Electric, including industry exhibitions and technical releases.
As the global energy transition accelerates, the importance of electricity, renewable energy, and energy storage technologies is becoming increasingly critical across African grids.
Having withstood extreme environmental conditions including icing, high altitude, pollution, earthquakes, and typhoons, China’s insulator industry provides exceptional durability.
On behalf of our team at Jiangxi QOCI Electric Co., Ltd, we encourage you to connect with us at the IEEE PES T&D exposition to explore our latest high-voltage insulation systems.
QOCI Electric, a leading global supplier of power equipment and solutions, officially confirmed its presence at the Iraq Energy Exhibition to support Middle East grid reconstruction.
Find answers to common technical and mechanical questions about toughened glass suspension insulators.
Browse our selection of electrical insulators, stays, and spools designed for global transmission line configurations.
