110kV Composite Crossarm Insulator for Overhead Lines

产品详情

A 110kV composite crossarm insulator is an integrated line component designed to provide conductor support, electrical insulation and phase-spacing control for high-voltage overhead power systems. Wishpower designs composite crossarms according to system voltage, mechanical loading, pollution severity, tower configuration and installation requirements. The product combines a high-strength fiberglass-reinforced core, silicone rubber housing and corrosion-resistant metal fittings. Compared with conventional steel crossarms and porcelain insulator assemblies, the integrated composite structure can reduce tower loading, simplify installation and improve resistance to pollution flashover, wind deflection, moisture, salt fog and industrial contamination.

 Product Overview

The Wishpower 110kV composite crossarm insulator combines structural support and external insulation within a single engineered assembly. It supports the conductor, maintains the required electrical clearance and withstands bending, tensile, wind, ice and dynamic loads during line operation.

Its principal advantages include:

• High-strength fiberglass-reinforced composite load-bearing core.

• Hydrophobic silicone rubber housing and weather sheds.

• Lower weight than conventional steel and porcelain assemblies.

• Reduced number of separate fittings and connection points.

• Customizable length, mounting angle and conductor attachment position.

• Reliable operation in polluted, coastal and humid environments.

• Suitable for compact overhead line and optimized tower designs.

 Core Features

1. High mechanical strength
   The fiberglass-reinforced core provides bending, tensile and fatigue resistance for conductor loads, wind pressure, ice accumulation and short-circuit forces.

2. Excellent pollution performance
   The silicone rubber surface provides hydrophobicity and hydrophobicity recovery, helping reduce the formation of continuous conductive water films under wet and contaminated conditions.

3. Lightweight construction
   The composite crossarm is lighter than many conventional steel-crossarm and porcelain-insulator combinations, simplifying transportation, lifting and installation.

4. Weather and corrosion resistance
   The external insulation system is designed to resist ultraviolet radiation, ozone, rain, temperature variation, salt fog and industrial pollution.

5. Optimized line geometry
   Custom crossarm dimensions and conductor attachment positions help maintain phase spacing, control wind swing and support compact line corridors.

6. Custom engineering design
   Mechanical load, creepage distance, insulation distance, mounting holes and fitting configurations can be designed according to project requirements.

7. Reduced maintenance requirements
   Silicone rubber sheds generally require less frequent cleaning than conventional insulating surfaces in many polluted environments.

Product Structure

A typical 110kV composite crossarm insulator consists of the following components:

1. Fiberglass-Reinforced Core
   The principal load-bearing component, designed to withstand bending, tensile, torsional and long-term static loads.

2. Silicone Rubber Housing and Sheds
   The external insulation system that provides creepage distance, environmental protection and weather resistance.

3. High-Voltage and Ground-End Fittings
   Metal fittings used to connect the crossarm to the tower, support structure, conductor clamp or associated line hardware.

4. End-Sealing System
   A sealed interface between the composite core and metal fittings that helps prevent moisture and contaminants from entering the internal structure.

5. Grading or Corona Rings
   Installed when required to improve electric-field distribution and reduce corona activity and localized electrical stress.

6. Conductor Connection Assembly
   May include clamps, connection plates, attachment points or customized line hardware according to the installation design.