| Customization: | Available |
|---|---|
| Application: | High-voltage |
| Material: | Composite Polymer |
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When searching for trusted line post insulator manufacturers, choosing a factory with professional production capabilities and strong technical background is essential. Line post insulators are widely used in transmission and distribution systems to provide robust mechanical support and excellent electrical insulation. We specialize in the production of premium composite line post insulators for global markets.
A line post insulator is a rigid type of insulator installed on poles or substations to support overhead conductors while preventing current leakage. Our composite insulators are known for their outstanding pollution resistance, mechanical strength, and long-term reliability.
Core Rod: High-strength epoxy glass fiber rod offering superior tensile and bending strength
Sheath: High-quality liquid silicone rubber with excellent hydrophobicity and anti-aging performance
End Fittings: Hot-dip galvanized steel or aluminum alloy, crimped firmly for strong mechanical and electrical connection
| Item | Specification |
|---|---|
| Rated Voltage | 11kV / 22kV / 33kV / 66kV |
| Creepage Distance | ≥ 400 mm |
| Mechanical Load | ≥ 12.5kN |
| Insulation Resistance | ≥ 10,000 MΩ |
| Pollution Class | IV (Heavy Pollution) |
| Operating Temperature | -40ºC to +55ºC |
| Service Life | ≥ 25 years |
Excellent Anti-Pollution Flashover: Silicone rubber sheds ensure water repellency, minimizing flashover risks
Easy Installation: Lightweight and compact structure allows easy handling and installation
High Mechanical Strength: Strong bending and tensile performance ensures reliability under harsh conditions
Stable Electrical Insulation: Composite materials ensure consistent insulation over long-term use
Low Maintenance Cost: Self-cleaning surface reduces maintenance frequency and expenses
Suitable for urban power distribution, rural grid upgrades, industrial distribution systems, railway and metro power networks
Ideal for heavy pollution, high-altitude, coastal or high-humidity regions
Applicable in 10kV to 66kV systems globally
We offer full customization including creepage distance, voltage rating, fitting types, and color. OEM/ODM production is supported based on client requirements or technical drawings. Fast production cycle and bulk delivery are available for urgent projects.
We offer factory-direct pricing with no middleman markup. Global export packaging and documentation (CO, test reports, shipping docs) are available. Competitive prices and reliable logistics ensure seamless international trade.
WishPower is a professional manufacturer of composite insulators. We serve a wide range of industrial sectors. If you are sourcing electrical equipment, feel free to contact us for a detailed quotation.
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