Premium selection of toughened glass, porcelain suspension, and low-voltage shackle configurations built to IEC, ANSI, and GB standards.
Designed for high mechanical stress in distribution line stay configurations, offering excellent mechanical stability.
Learn More
High voltage cap and pin porcelain units manufactured under strict process controls to ensure zero electrical punctures.
Learn More
Ideal for distribution lines, providing a highly reliable and weather-resistant channel for secondary line support.
Learn More
Specifically developed with optimized pin design to maximize load transfer properties across high voltage suspension lines.
Learn More
Aerodynamic profile prevents dust accumulation and solves line flashover hazards in dessert or wind-swept areas.
Learn More
High voltage pin insulator complete with robust spindle for reliable performance across medium voltage systems.
Learn More
Optimized leakage distance and structural integrity to support low-to-medium voltage overhead power lines.
Learn More
High quality standard profile suspension glass insulator with a mechanical rating of 70kN, perfect for global projects.
Learn MoreOverhead transmission line engineering demands unmatched mechanical security and electrical integrity. In this context, the U160bm Glass Insulator represents one of the most critical elements for extra-high voltage (EHV) and ultra-high voltage (UHV) AC/DC transmission networks. The mechanical load specification of 160 kN failing load (as indicated by the U160 prefix) serves as a benchmark for high-tension lines operating under severe mechanical loads and spans.
Toughened glass suspension insulators of the cap-and-pin design are preferred over porcelain and polymer configurations because they offer superior dielectric characteristics and predictable mechanical stress distribution. During the manufacturing process, a sudden cooling of the molten glass surface creates a state of high compressive stress on the exterior, balanced by tensile stress within the core. This thermal tempering process guarantees that the insulator cannot experience silent electrical puncture. In the event of internal defect, the unit undergoes complete shattering, leaving a residual stub that maintains its mechanical strength (residual mechanical strength remains up to 80% of rated failing load), facilitating instant ground and aerial diagnostics.
Structural Performance Indicators of U160bm Insulators:
By specifying U160bm insulators, utility engineers secure a long-term maintenance-free operation cycle. The smooth surface of tempered glass acts as a natural cleaning agent under wind and rain conditions, avoiding the early tracking risks common in silicone rubber and the hard-to-detect microscopic cracks typical in ceramic/porcelain materials.
The strategic advantage of Jiangxi QOCI Electric Co. Ltd lies in our geographical cluster and state-of-the-art high-capacity manufacturing processes.
Founded in December 2002 with a robust registered capital of 508 million Yuan, our manufacturing footprint covers 100 mu (70,000 m²) in the Luxi County Industrial Park of Pingxiang, Jiangxi Province. As an industry pioneer, we bridge raw chemical precision with heavy mechanical engineering.
Our facility runs an advanced Total Oxygen Kiln system, designed to guarantee absolute thermal stability and melt homogeneity. Homogeneous glass chemistry is essential to eliminate micro-impurities (like nickel sulfide inclusions) which are the root cause of spontaneous mechanical failures in tempered glass.
Quality control is validated through multiple layers: automated forming presses, high-precision mixers, and mechanical routine tension testing up to rated limits. Each disc must pass a steep-front impulse voltage test in air and a power-frequency puncture test to ensure compliance prior to global container dispatch.
To cope with diverse global climates, we engineer glass insulators with specific profile geometry to limit creepage leakage currents.
Characterized by shallow and well-spaced small ribs on the underside. The smooth profile promotes self-cleaning by natural wind and rain. Ideally suited for clean to moderately polluted regions.
Features deep, widely-spaced under-ribs that increase leakage distance and prevent electrical arc bridging under wet, highly conductive saline conditions.
Engineered without under-ribs to minimize dust and sand accumulation on the bottom surface. Prevents ice bridging in high-altitude environments.
Features double external ribs to facilitate manual cleaning if necessary, while maintaining high specific creepage distance under heavy industrial solid dust loads.
Composed of three separated layers of umbrella discs, creating unmatched creepage length per unit. Ideal for ultra-high voltage grids in coastal/industrial convergence areas.
Coated with Room Temperature Vulcanization (RTV) silicone. Combines the excellent mechanical reliability of tempered glass with the superior hydrophobicity of composite polymers.
A transparent look inside the advanced machinery and testing apparatus powering our 39,000-ton annual output.
Automated pressing of molten glass to ensure precise thickness distribution, avoiding structural weak spots.
Quenching process control ensures the exact required compressive stress on the exterior glass shell.
Precise weighing and blending of raw sand, soda ash, and dolomite to ensure mineral homogeneity.
Routine electrical stress tests are performed on each batch to prevent delivery of units with low dielectric strength.
Rigorous analysis of input batch materials is conducted to eliminate impurities like nickel compounds.
Advanced low-emission melting furnace designed to ensure stability and structural integrity of the final products.
Our solutions cater to critical segments of high-voltage transmission networks, from complex environmental systems to functional grid designs.
Specially customized insulators for deployment in coastal marine zones, heavy-ice high altitudes, and dry, sandy deserts.
Suitable for high voltage and extra high voltage systems up to 500kV, offering high reliability and preventing flashovers.
Integrated solutions for long-span river crossings and heavy mechanical tension strings designed to withstand extreme wind load cycles.
Specifically designed to operate reliably in chemical refinery zones and heavy industrial coal-fired plant environments.
Our quality management systems are fully certified to international standards. Our products have undergone rigorous type testing in independent laboratories.
Providing direct answers to engineering questions regarding mechanical load ratings, tempered glass advantages, and factory quality control.
Heavy-duty high voltage suspension and distribution isolators designed to handle high mechanical stress under harsh operating conditions.
Designed with an aerodynamic profile to prevent pollutant accumulation in sandstorm-prone or desert regions.
Learn More
High-profile anti-fog design featuring an optimized leakage path to withstand severe industrial pollution.
Learn More
Extra heavy-duty suspension unit with a rated failing load of 300kN, designed for 500kV and UHV line structures.
Learn More
Industrial spool-type insulator engineered to support secondary conductors on poles and distribution lines.
Learn More
100kN high-performance tension suspension unit with optimized anti-pollution surface chemistry.
Learn More
Our highest mechanical strength rating of 420kN. Engineered for long-span overhead river crossings.
Learn More
Low voltage shackle type assembly complete with bracket fittings for distribution network installations.
Learn More
High dielectric strength guy wire insulators, offering superior stability for support poles.
Learn MoreCollaborating with leading power utility corporations and heavy industrial engineering companies worldwide.
Keep up with the latest technological developments and industry events from Jiangxi QOCI Electric Co. Ltd.
The global energy transition is accelerating. We will showcase our latest range of high-voltage glass insulators and silicone-coated solutions at Enlit Africa.
Our insulator industry has withstood extreme service conditions including icing, high altitudes, pollution, earthquakes, and typhoons, proving its long-term reliability.
We invite you to connect with our technical engineering team at the upcoming IEEE PES T&D Exposition to explore custom product solutions.
QOCI Electric officially confirms participation in the Iraq Energy Exhibition, showcasing our solutions for rebuild projects and high-temperature environments.