Standard Profile Glass Insulators
Technical Overview
Standard Profile Glass Insulators represent the most widely used configuration for high-voltage transmission and distribution T&D lines worldwide. Designed for balanced performance in normal environmental conditions, they provide an ideal combination of electrical strength, mechanical stability, and long-term reliability.
Design Characteristics
- Shape: Classic contour profile with moderate sheds and controlled creepage path
- Material: Fully toughened high-transparency glass, ensuring immediate visual fault detection
- Mechanical Strength: Available in load ratings from 70 kN to 300 kN, suitable for standard transmission applications
- Creepage Distance: Optimized between 20 to 25 mm/kV (as per IEC 60305), ensuring efficient performance in low-to-medium pollution zones
Performance Features
- Excellent resistance to UV radiation, humidity, and temperature fluctuations
- Low leakage current under typical service environments
- Self-cleaning properties due to hydrophilic glass surface behavior under rain
- Minimal maintenance requirement and extended service life (>50 years)
Applications
- High and extra-high voltage transmission lines in temperate or low-pollution environments
- Sub-transmission and distribution networks
- Railway and utility overhead systems under standard service conditions
Compliance & Standards
- IEC 60305, IEC 60383-1, IEC 60433
- ANSI C29.2 and C29.8
Our Standard Profile insulators are the industry benchmark for stable, cost-effective performance in typical atmospheric conditions. They combine mechanical robustness and dielectric reliability, offering utilities a dependable solution for conventional network configurations.
Anti-Pollution Profile Glass Insulators
Technical Overview
The Anti-Pollution Profiles are specifically engineered for environments where dust, salt, or industrial pollutants present elevated flashover risks. The design incorporates extended creepage paths and advanced hydrophobic features to ensure superior insulation under severe contamination.
Design Characteristics
- Profile Type: Deep-ribbed, long creepage disc design
- Creepage Distance: Extended to ≥ 31 mm/kV, meeting or exceeding IEC pollution class IV requirements
- Material: Hydrophobic glass with optional nano-coating to minimize wetting and contamination adherence
- Mechanical Strength: 70–400 kN load range
Performance Features
- Exceptional resistance to salt fog, desert dust, and industrial contamination
- Maintains insulation even when surface partially contaminated
- Quick drying capability due to optimized rib geometry
- Reduced leakage current under humid or coastal conditions
- Suitable for use with RTV silicone coating for extra severe environments
Applications
- Coastal transmission corridors and marine environments
- Industrial zones and desert climates
- Areas with high pollution index or frequent fog/mist exposure
Compliance & Standards
- IEC 60507 (Salt Fog Test), IEC 60383-1, IEC 60433
- ANSI C29.1, C29.2 (Pollution-resistant types)
Summary
Our Anti-Pollution Profile insulators ensure reliable service in the most aggressive environments. Engineered for endurance and reduced maintenance, they protect transmission networks where conventional insulators would degrade or fail.
Aerodynamic Glass Insulators
Technical Overview
Aerodynamic Glass Insulators are designed with wide, open contours and reduced shielding ribs, allowing for excellent rain-washing and superior self-cleaning behavior. We developed this profile to minimize contamination buildup while maintaining high mechanical integrity.
Design Characteristics
- Geometry: Open shed configuration ensuring natural water drainage
- Creepage Distance: Medium to long, typically 25–30 mm/kV depending on system voltage
- Material: Tempered high-strength glass with hydrophilic surface properties
- Mechanical Load Range: 70–300 kN
Performance Features
- Enhanced self-cleaning effect from rain and wind exposure
- Reduced weight and wind load on long-span lines
- Low risk of ice bridging in cold regions
- Stable dielectric performance under alternating wet/dry conditions
Applications
- Transmission lines in tropical and high-rainfall areas
- Mountainous and icy regions where natural cleaning is critical
- HV and EHV overhead networks requiring low-maintenance solutions
Compliance & Standards
- IEC 60305, IEC 60383-1, IEC 60433
- ANSI C29.2 (Class 52 type open design)
- Meets IEC Pollution Class II–III
Summary
Our Open Profile series offers outstanding hydrodynamic and environmental adaptability. Ideal for wet or self-cleaning zones, these insulators guarantee long-term stability and reduced contamination without compromising strength or dielectric integrity.
The Outerib Profile Glass Insulators
Technical Overview
The Outerib Profile represents an advanced generation of high-performance insulators designed for challenging environmental and mechanical conditions. By incorporating extended outer ribs, this profile enhances surface tracking resistance and increases creepage without substantially increasing overall dimensions.
Design Characteristics
- Profile Type: Extended outer ribs with controlled surface angles
- Creepage Distance: 30–35 mm/kV, ideal for heavy to very heavy pollution categories
- Material: High-clarity tempered glass, with optional nanostructured anti-contaminant coating
- Mechanical Strength: Available in 100–400 kN load ratings
Performance Features
- Superior arc and flashover resistance under polluted and humid conditions
- Excellent thermal performance and quick surface drying
- Balanced mechanical and electrical design for long-span high-tension lines
- Minimal hydrophobicity loss over time
- Optimized shed spacing to minimize corona discharge
Applications
- Extra-high voltage (EHV) and ultra-high voltage (UHV) transmission lines
- Desert, coastal, or high-industrial environments with mixed contaminants
- Cross-country interconnectors and long-span lines requiring maximum reliability
Compliance & Standards
- IEC 60383-1, IEC 60507, IEC 60815 (Pollution performance)
- ANSI C29.2 and C29.8 (EHV applications)
Summary
Our Outerib Profile insulators stand at the forefront of design evolution—combining enhanced creepage, superior contamination control, and outstanding mechanical performance. They provide the ultimate solution for utilities seeking uncompromised reliability in the most demanding service conditions.