138kV 120kN Composite Long Rod Insulator with 4200mm Creepage Distance for Heavy Pollution Transmission Lines
138kV 120kN silicone rubber composite long rod insulator designed specifically for heavy pollution areas in transmission line applications. This high-voltage insulator features superior pollution resistance and reliable mechanical performance.
| Type | Mechanical Load | Section Length | Arcing Distance | Creepage Distance | Lightning Impulse Voltage | Wet Power Frequency Voltage |
|---|---|---|---|---|---|---|
| HFXBW4-138/120 | 120 kN | 1750±15 mm | 1550 mm | 4200 mm | 670 kV | 235 kV |
- Forged Steel Fittings: Ball and socket fittings manufactured from high-quality forged steel, ensuring complete freedom from defects and air impurities for maximum reliability
- Hot-Dip Galvanization: Metal fittings feature minimum 85μm zinc coating, customizable up to 127μm based on customer requirements
- Silicone Rubber Material: Sheath and sheds manufactured using premium Dow Corning silicone rubber for superior performance
- Reinforced Core: Fiber glass reinforced core provides exceptional mechanical strength and durability
Suitable for both tension and suspension string applications in 138kV transmission lines. Corona rings available based on specific customer requirements and technical specifications.
2-year quality guarantee standard, extendable as per tender or customer requirements. Superior self-cleaning properties minimize maintenance requirements.
Optimized shed profile design with large (122mm) and small (74mm) diameters provides enhanced electrical performance, making these insulators ideal for heavy pollution environments where contamination resistance is critical.
Available with custom designs based on specific customer requirements or special technical specifications to meet unique application needs.
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