VOBO Triple-Shed Type Toughened Glass Insulator

The VOBO Triple-Shed Type toughened glass insulator delivers the highest creepage distance in VOBO’s standard insulator lineup through its three-tier umbrella shed configuration. Designed for the most demanding high-altitude and severely contaminated transmission environments, the Triple-Shed Type ensures reliable electrical insulation performance where standard or double-shed profiles would be insufficient.

Key Specifications

• Mechanical Load Rating: 40kN to 300kN
• Applicable Voltage: 35kV – 1100kV transmission lines
• Profile: Triple umbrella shed configuration
• Creepage Distance: Maximum in VOBO’s standard range — suitable for IEC pollution levels d–e
• Altitude Suitability: High-altitude transmission corridors (1000m–4000m+)
• Material: Toughened borosilicate glass
• Standards: IEC 60305, IEC 60815, GB/T 7253

Key Advantages

• Maximum Creepage Distance: Triple shed structure provides the greatest leakage path, dramatically reducing pollution flashover risk
• High-Altitude Optimized: Accounts for reduced air density at altitude which decreases flashover voltage — triple shed compensates through extended creepage
• Severe Pollution Capability: Effective at IEC pollution severity d (heavy) and e (very heavy) — the most demanding service conditions
• Self-Cleaning Performance: Shed geometry encourages efficient rainwater runoff across all three umbrella tiers
• Self-Destruction Fault Detection: Easy visual fault identification

Applications

Extra-high-voltage (EHV) and ultra-high-voltage (UHV) transmission lines in severely polluted industrial and mining areas, high-altitude Himalayan and Tibetan Plateau crossings, and desert transmission corridors in Central Asia and the Middle East. Suitable for 35kV to 1100kV systems. Contact IndusGrove to request a technical consultation and quote for VOBO Triple-Shed Glass Insulators.