As global energy demand shifts toward renewable sources, the transmission infrastructure requires higher resilience. The U70B Glass Insulator provides the critical mechanical failing load of 70kN needed for high-voltage distribution. Our solutions integrate AI-monitored manufacturing to ensure that each disk can withstand thermal runaway and ionic migration.
Wind farms and solar plants are often located in remote, harsh environments. Our toughened glass technology is engineered to handle the cyclic mechanical stress of wind vibrations and the corrosive nature of coastal salt spray, ensuring a 50-year service life with minimal maintenance.
For Ultra-High Voltage projects, insulation stability is non-negotiable. We offer comprehensive white paper-level technical support for engineers to map leakage distances and flashover characteristics based on specific altitude and pollution profiles.
Founded in December 2002 with a registered capital of 508 million Yuan, Jiangxi QOCI Electric Co. Ltd has emerged as a global leader in high-voltage insulation technology. Located in Pingxiang, Jiangxi Province, our 100-mu facility is dedicated to "Serving the world-class power grid with dedication."
Our philosophy is rooted in Responsibility as the guarantee of quality. We don't just sell components; we provide infrastructure safety. Our U70B series represents the pinnacle of Chinese manufacturing excellence, combining competitive pricing with world-class engineering standards.
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Invention Patents
The U70B (Cap and Pin type) remains the workhorse of global transmission networks. Currently, the market is seeing a massive shift from porcelain to glass due to the "self-shattering" property of toughened glass, which allows for easier aerial inspections via drones. Our U70B factory ensures a zero-defect rate through automated visual inspection systems (AVI), ensuring that every supplier receiving our product can guarantee grid uptime.
Designed with shallow, well-spaced small ribs, optimized for self-cleaning via wind and rain. Complies with IEC 60305 standards with enhanced leakage distance.
Features long, widely-spaced under-ribs to prevent arc bridging in heavy fog or coastal salt-spray environments. Critical for grid stability in high-humidity zones.
The ultimate solution for UHV transmission. Three layers of umbrella discs provide maximum creepage distance and pollution flashover resistance.
High Voltage Test Lab
To support global partners, QOCI Electric provides localized compliance documentation, including ANSI, IEC, and AS standard certifications. Our factory undergoes rigorous third-party audits to ensure that the U70B Glass Insulators meet the mechanical and electrical requirements of different geographical jurisdictions.
We provide 24/7 technical consulting, string design optimization, and on-site training for installation teams across Southeast Asia, Africa, and Latin America.
Custom solutions for desert (Open Profile) and arctic environments.
Critical components for substation busbar insulation and tension strings.
Designed for specific lightning protection and grounding wire profiles.
Applications in railway electrification and heavy industrial smelting grids.
