In the evolving landscape of global energy distribution, the CTV 254 Isolator En Verre U70B stands as a benchmark of mechanical and electrical integrity. As a premier manufacturer, Jiangxi QOCI Electric Co. Ltd (founded in 2002) has combined decades of material science expertise with state-of-the-art manufacturing to produce toughened glass insulators that exceed IEC standards.
Our facility, spanning over 70,000 m² with a registered capital of 508 million Yuan, is dedicated to supporting world-class power grids. The U70B series represents the pinnacle of suspension insulation technology, offering a 70kN electromechanical failing load designed for extreme resilience in high-voltage transmission and distribution.
High purity glass ensures superior puncture resistance. The material's dielectric constant allows for even voltage distribution across strings.
With a 70kN (U70B) rating, these insulators handle massive tensile stress, crucial for long-span transmission lines.
Engineered to withstand temperature fluctuations from -60°C to +50°C without compromising structural integrity.
Hot-dip galvanized steel caps and pins provide lifetime corrosion resistance in coastal and industrial zones.
The global shift toward Green Energy Construction has intensified the demand for reliable insulators. Wind and solar farms are often located in remote, harsh environments where maintenance is difficult and costly. The CTV 254 (U70B) addresses these challenges through the following industry solutions:
Replacing aging porcelain with toughened glass to reduce line losses and prevent unexpected outages. Glass insulators have a "zero-maintenance" reputation due to their shatter-on-failure characteristic which is easy to detect.
Supporting international HVDC and HVAC links with standardized IEC 60305 profiles, ensuring compatibility across different national grid architectures.
By optimizing line performance, our insulators contribute to the efficiency of renewable energy evacuation from source to urban centers.
Registered Capital (Yuan)
Annual Output (Tons)
Invention Patents
Senior Technicians
Utilizing Anti-pollution and Aerodynamic profiles to prevent salt-fog flashovers. Our glass material is chemically inert to marine aerosols.
Open profile and RTV silicone-coated options allow for self-cleaning even when exposed to heavy dust, fly ash, and industrial emissions.
Optimized creepage distances (e.g., U100BLP, U160BLP) ensure electrical stability in low-pressure, high-elevation environments.
Compact designs like the ANSI Spool and Pin types integrate seamlessly into urban distribution networks with aesthetic and space constraints.
Jiangxi QOCI Electric provides more than just hardware; we provide a localized assurance framework. Our products comply with IEC, ANSI, BS, and AS standards, ensuring they meet the legal and technical requirements of any jurisdiction.
Our R&D team is currently focusing on the next generation of "Smart Insulators". Future iterations of the CTV 254 series will include:
